Merge pull request 'uart' (#15) from uart into dev

Reviewed-on: #15

.gitignore

@@ -0,0 +1,14 @@
+hdlc1.c
+hdlc1.h
+hdlc_frame.c
+hdlc_frame.h
+main1.c
+uart.c
+uart.h
+
+!./hdlc
+/.idea/Display_Avr_3.iml
+/.idea/.gitignore
+/.idea/vcs.xml
+/.idea/modules.xml
+/CMakeLists.txt

.idea/.gitignore

@@ -1,8 +0,0 @@
-# Default ignored files
-/shelf/
-/workspace.xml
-# Editor-based HTTP Client requests
-/httpRequests/
-# Datasource local storage ignored files
-/dataSources/
-/dataSources.local.xml

.idea/modules.xml

@@ -1,8 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="ProjectModuleManager">
-    <modules>
-      <module fileurl="file://$PROJECT_DIR$/.idea/Display_Avr_3.iml" filepath="$PROJECT_DIR$/.idea/Display_Avr_3.iml" />
-    </modules>
-  </component>
-</project>

.idea/vcs.xml

@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="VcsDirectoryMappings">
-    <mapping directory="$PROJECT_DIR$" vcs="Git" />
-  </component>
-</project>

Lсd_print/Lcd_print.cpp

@@ -0,0 +1,100 @@
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <MyLCD.h>
+#include <protocol.h>
+#include <Arduino.h>
+#include <cstddef>
+
+struct DisplayData {
+    char topLine[64];
+    float value1;
+    float value2;
+    float value3;
+};
+
+struct TextCounter {
+    unsigned long startTime;
+    int incrementValue;
+};
+
+TextCounter textCounter;
+
+void Lcd_inciliation() {
+    lcd_init(LCD_DISP_ON_BLINK); // инициализация дисплея
+    lcd_home(); // домой курсор
+    lcd_led(0); // вкл подсветки
+    textCounter.startTime = millis(); // Запоминаем время запуска программы
+}
+
+void fillBuffer1(const char* source, char* buffer, size_t bufferSize, int incrementValue) {
+    int startIndex = incrementValue % strlen(source); // Определяем начальный индекс на основе incrementValue
+    int endIndex = startIndex + 16;
+
+    for (int i = 0; i < 16; ++i) {
+        buffer[i] = source[(startIndex + i) % strlen(source)];
+    }
+    buffer[16] = '\0'; // Установка нулевого символа в конце буфера
+}
+
+void fillBuffer2(float value1, float value2, float value3, char* buffer, size_t bufferSize) {
+    snprintf(buffer, bufferSize, "%.2f.%.2f.%.2f", value1, value2, value3);
+}
+
+void printLcd(struct message* decode_message) {
+    unsigned long currentTime = millis(); // Текущее время
+    // Проверяем, прошло ли 500 мс с момента последнего увеличения incrementValue
+    if (currentTime - textCounter.startTime >= 500) {
+        textCounter.incrementValue++; // Увеличиваем incrementValue на 1
+        textCounter.startTime = currentTime; // Обновляем время
+    }
+
+    struct DisplayData displayData;
+    strncpy(displayData.topLine, decode_message->str, sizeof(displayData.topLine) - 1);
+    displayData.topLine[sizeof(displayData.topLine) - 1] = '\0';
+    displayData.value1 = decode_message->numbers[0];
+    displayData.value2 = decode_message->numbers[1];
+    displayData.value3 = decode_message->numbers[2];
+
+    // Буферы для заполнения данных
+    char buffer1[17];
+    char buffer2[17];
+
+    // Заполнение буфера 1
+    fillBuffer1(displayData.topLine, buffer1, sizeof(buffer1), textCounter.incrementValue);
+
+    // Заполнение буфера 2
+    fillBuffer2(displayData.value1, displayData.value2, displayData.value3, buffer2, sizeof(buffer2));
+
+    // Создание массива для вывода на дисплей
+    char displayArray[32];
+    strncpy(displayArray, buffer1, 16); // Копирование первых 16 символов из buffer1 в displayArray
+    strncpy(displayArray + 16, buffer2, 16); // Копирование первых 16 символов из buffer2 в displayArray, начиная с позиции 16
+
+    // Вывод данных на экран
+    lcd_gotoxy(0, 0);
+    lcd_puts(displayArray);
+
+    lcd_gotoxy(0, 1);
+    lcd_puts(displayArray + 16); // Вывод второй половины displayArray
+}
+
+void dder() {
+    Lcd_inciliation();
+
+    uint8_t encode_message[100];
+    size_t len_encode_message = 0;
+    struct message message;
+
+
+    // Получаем данные из протокола
+    protocol_encode(message, encode_message, &len_encode_message);
+
+    // Декодируем данные из протокола
+    struct message decode_message;
+    protocol_decode(encode_message, len_encode_message, &decode_message);
+
+    // Выводим данные на экран
+    printLcd(&decode_message);
+}

Lсd_print/lcd.h

@@ -0,0 +1,8 @@
+#ifndef Lsd_print_h
+#define Lsd_print_h
+#include "protocol.h"
+
+void Lcd_inciliation();
+void printLcd(struct message* decode_message);
+
+#endif

MyLCD/MyLCD.h

@@ -1,22 +1,22 @@
-
+
-#ifndef MYLCD_H_
+#ifndef MYLCD_H_
-#define MYLCD_H_
+#define MYLCD_H_
-
+
-
+
-// ïîäêëþ÷àåì âñå ëèáû
+// ���������� ��� ����
-#include <avr/io.h>
+#include <avr/io.h>
-#include <util/delay.h>
+#include <util/delay.h>
-#include <stdlib.h>
+#include <stdlib.h>
-#include <string.h>
+#include <string.h>
-#include <stdint.h>
+#include <stdint.h>
-#include <compat/twi.h>
+#include <compat/twi.h>
-#include <inttypes.h>
+#include <inttypes.h>
-#include <avr/pgmspace.h>
+#include <avr/pgmspace.h>
-#include <avr/interrupt.h>
+#include <avr/interrupt.h>
-#include <stdio.h>
+#include <stdio.h>
-#include "lcdpcf8574.h"
+#include "lcdpcf8574.h"
-#include "pcf8574.h"
+#include "pcf8574.h"
-#include "i2cmaster.h"
+#include "i2cmaster.h"
-
+
-
+
 #endif

MyLCD/i2cmaster.h

@@ -1,42 +1,42 @@
-#ifndef _I2CMASTER_H
+#ifndef _I2CMASTER_H
-#define _I2CMASTER_H
+#define _I2CMASTER_H
-
+
-// флаг, отвечающий за чтение данных по i2c
+// флаг, отвечающий за чтение данных по i2c
-#define I2C_READ    1
+#define I2C_READ    1
-
+
-// флаг, отвечающий за отправку данных по i2c
+// флаг, отвечающий за отправку данных по i2c
-#define I2C_WRITE   0
+#define I2C_WRITE   0
-
+
-// частота тактирования линии в Герцах
+// частота тактирования линии в Герцах
-#define SCL_CLOCK 100000L
+#define SCL_CLOCK 100000L
-
+
-// инициализация интерфейса
+// инициализация интерфейса
-void i2c_init(void);
+void i2c_init(void);
-
+
-// передача условия СТОП на шину
+// передача условия СТОП на шину
-void i2c_stop(void);
+void i2c_stop(void);
-
+
-// передача условия СТАРТ на шину
+// передача условия СТАРТ на шину
-unsigned char i2c_start(unsigned char addr);
+unsigned char i2c_start(unsigned char addr);
-
+
-// повторный старт(перезапуск)
+// повторный старт(перезапуск)
-unsigned char i2c_rep_start(unsigned char addr);
+unsigned char i2c_rep_start(unsigned char addr);
-
+
-// ждем, если устрой-во занято, а потом передаем условие СТАРТ на шину
+// ждем, если устрой-во занято, а потом передаем условие СТАРТ на шину
-void i2c_start_wait(unsigned char addr);
+void i2c_start_wait(unsigned char addr);
-
+
- // отправка данных
+ // отправка данных
-unsigned char i2c_write(unsigned char data);
+unsigned char i2c_write(unsigned char data);
-
+
-// читаем данные и продолжаем вещание
+// читаем данные и продолжаем вещание
-unsigned char i2c_readAck(void);
+unsigned char i2c_readAck(void);
-
+
-// читаем данные и после их получения передаем услови СТОП
+// читаем данные и после их получения передаем услови СТОП
-unsigned char i2c_readNak(void);
+unsigned char i2c_readNak(void);
-
+
-// читаем данные с шины
+// читаем данные с шины
-unsigned char i2c_read(unsigned char ack);
+unsigned char i2c_read(unsigned char ack);
-
+
-// выбираем какой варинт чтения данных будет
+// выбираем какой варинт чтения данных будет
-#define i2c_read(ack)  (ack) ? i2c_readAck() : i2c_readNak(); 
+#define i2c_read(ack)  (ack) ? i2c_readAck() : i2c_readNak(); 
-#endif
+#endif

MyLCD/keywords.txt

@@ -0,0 +1,10 @@
+lcd_init  KEYWORD2
+lcd_clrscr  KEYWORD2
+lcd_home  KEYWORD2
+lcd_gotoxy  KEYWORD2
+lcd_led  KEYWORD2
+lcd_putc  KEYWORD2
+lcd_puts  KEYWORD2
+lcd_puts_p  KEYWORD2
+lcd_command  KEYWORD2
+lcd_data  KEYWORD2

MyLCD/lcdpcf8574.cpp

@@ -0,0 +1,316 @@
+#include "MyLCD.h"
+
+// задержеки через асемблер
+#define lcd_e_delay()   __asm__ __volatile__( "rjmp 1f\n 1:" );
+#define lcd_e_toggle()  toggle_e()
+
+
+volatile uint8_t dataport = 0;
+
+static void toggle_e(void);
+
+// сама реализация задержек
+static inline void _delayFourCycles(unsigned int __count)
+{
+    if ( __count == 0 )    
+        __asm__ __volatile__( "rjmp 1f\n 1:" );    
+    else
+        __asm__ __volatile__ (
+    	    "1: sbiw %0,1" "\n\t"                  
+    	    "brne 1b"                              
+    	    : "=w" (__count)
+    	    : "0" (__count)
+    	   );
+}
+
+// тупа оборачиваем функцию в макрос
+#define delay(us)  _delayFourCycles( ( ( 1*(F_CPU/4000) )*us)/1000 )
+
+// переключение пина для начала записи команды
+static void toggle_e(void)
+{
+	pcf8574_setoutputpinhigh(LCD_PCF8574_DEVICEID, LCD_E_PIN);
+    lcd_e_delay();
+    pcf8574_setoutputpinlow(LCD_PCF8574_DEVICEID, LCD_E_PIN);
+}
+
+
+// отправка байта для контроллера LCD
+static void lcd_write(uint8_t data,uint8_t rs) 
+{
+	if (rs) //отправка данных (RS=1, RW=0)
+		dataport |= _BV(LCD_RS_PIN);
+	else // отпрака инструкций(RS=0, RW=0)
+		dataport &= ~_BV(LCD_RS_PIN);
+	dataport &= ~_BV(LCD_RW_PIN);
+	pcf8574_setoutput(LCD_PCF8574_DEVICEID, dataport);
+
+	// отправка старшего полубайта
+    dataport &= ~_BV(LCD_DATA3_PIN);
+    dataport &= ~_BV(LCD_DATA2_PIN);
+    dataport &= ~_BV(LCD_DATA1_PIN);
+    dataport &= ~_BV(LCD_DATA0_PIN);
+	if(data & 0x80) dataport |= _BV(LCD_DATA3_PIN);
+	if(data & 0x40) dataport |= _BV(LCD_DATA2_PIN);
+	if(data & 0x20) dataport |= _BV(LCD_DATA1_PIN);
+	if(data & 0x10) dataport |= _BV(LCD_DATA0_PIN);
+	pcf8574_setoutput(LCD_PCF8574_DEVICEID, dataport);
+	lcd_e_toggle();
+
+	// отправка младшего полубайта
+	dataport &= ~_BV(LCD_DATA3_PIN);
+	dataport &= ~_BV(LCD_DATA2_PIN);
+	dataport &= ~_BV(LCD_DATA1_PIN);
+	dataport &= ~_BV(LCD_DATA0_PIN);
+	if(data & 0x08) dataport |= _BV(LCD_DATA3_PIN);
+	if(data & 0x04) dataport |= _BV(LCD_DATA2_PIN);
+	if(data & 0x02) dataport |= _BV(LCD_DATA1_PIN);
+	if(data & 0x01) dataport |= _BV(LCD_DATA0_PIN);
+	pcf8574_setoutput(LCD_PCF8574_DEVICEID, dataport);
+	lcd_e_toggle();
+
+	// завершаем передачу
+	dataport |= _BV(LCD_DATA0_PIN);
+	dataport |= _BV(LCD_DATA1_PIN);
+	dataport |= _BV(LCD_DATA2_PIN);
+	dataport |= _BV(LCD_DATA3_PIN);
+	pcf8574_setoutput(LCD_PCF8574_DEVICEID, dataport);
+}
+
+// чтение байта
+static uint8_t lcd_read(uint8_t rs) 
+{
+    uint8_t data;
+
+    if (rs) // запись данных (RS=1, RW=0) 
+    	dataport |= _BV(LCD_RS_PIN);
+    else // запись инструкций (RS=0, RW=0)
+    	dataport &= ~_BV(LCD_RS_PIN);
+    dataport |= _BV(LCD_RW_PIN);
+    pcf8574_setoutput(LCD_PCF8574_DEVICEID, dataport);
+
+    pcf8574_setoutputpinhigh(LCD_PCF8574_DEVICEID, LCD_E_PIN);
+	lcd_e_delay();
+	// чтение страшего полубайта
+	data = pcf8574_getoutputpin(LCD_PCF8574_DEVICEID, LCD_DATA0_PIN) << 4;   
+	pcf8574_setoutputpinlow(LCD_PCF8574_DEVICEID, LCD_E_PIN);
+
+	lcd_e_delay();                  
+
+	pcf8574_setoutputpinhigh(LCD_PCF8574_DEVICEID, LCD_E_PIN);
+	lcd_e_delay();
+	// чтение младшего полубайта
+	data |= pcf8574_getoutputpin(LCD_PCF8574_DEVICEID, LCD_DATA0_PIN) &0x0F; 
+	pcf8574_setoutputpinlow(LCD_PCF8574_DEVICEID, LCD_E_PIN);
+
+    return data;
+}
+
+// ждем пока ЖК освободится
+static uint8_t lcd_waitbusy(void)
+
+{
+    register uint8_t c;
+    
+    // ждем
+    while ( (c=lcd_read(0)) & (1<<LCD_BUSY)) {}
+    // задержка
+    delay(2);
+	// получаем адрес
+    return (lcd_read(0)); 
+}
+
+
+// перемещение курсора по строкам
+static inline void lcd_newline(uint8_t pos)
+{
+    register uint8_t addressCounter;
+
+
+#if LCD_LINES==1
+    addressCounter = 0;
+#endif
+#if LCD_LINES==2
+    if ( pos < (LCD_START_LINE2) )
+        addressCounter = LCD_START_LINE2;
+    else
+        addressCounter = LCD_START_LINE1;
+#endif
+#if LCD_LINES==4
+    if ( pos < LCD_START_LINE3 )
+        addressCounter = LCD_START_LINE2;
+    else if ( (pos >= LCD_START_LINE2) && (pos < LCD_START_LINE4) )
+        addressCounter = LCD_START_LINE3;
+    else if ( (pos >= LCD_START_LINE3) && (pos < LCD_START_LINE2) )
+        addressCounter = LCD_START_LINE4;
+    else 
+        addressCounter = LCD_START_LINE1;
+#endif
+    lcd_command((1<<LCD_DDRAM)+addressCounter);
+}
+
+// служебная функция для отправки команд дисплею
+void lcd_command(uint8_t cmd)
+{
+    lcd_waitbusy();
+    lcd_write(cmd,0);
+}
+
+// отправка байта на дисплей
+void lcd_data(uint8_t data)
+{
+    lcd_waitbusy();
+    lcd_write(data,1);
+}
+
+// перемещение курсора по координатам
+void lcd_gotoxy(uint8_t x, uint8_t y)
+{
+#if LCD_LINES==1
+    lcd_command((1<<LCD_DDRAM)+LCD_START_LINE1+x);
+#endif
+#if LCD_LINES==2
+    if ( y==0 ) 
+        lcd_command((1<<LCD_DDRAM)+LCD_START_LINE1+x);
+    else
+        lcd_command((1<<LCD_DDRAM)+LCD_START_LINE2+x);
+#endif
+#if LCD_LINES==4
+    if ( y==0 )
+        lcd_command((1<<LCD_DDRAM)+LCD_START_LINE1+x);
+    else if ( y==1)
+        lcd_command((1<<LCD_DDRAM)+LCD_START_LINE2+x);
+    else if ( y==2)
+        lcd_command((1<<LCD_DDRAM)+LCD_START_LINE3+x);
+    else
+        lcd_command((1<<LCD_DDRAM)+LCD_START_LINE4+x);
+#endif
+}
+
+// тырим координаты
+int lcd_getxy(void)
+{
+    return lcd_waitbusy();
+}
+
+// очистка дисплея
+void lcd_clrscr(void)
+{
+    lcd_command(1<<LCD_CLR);
+}
+
+// вкл и откл подсветки
+void lcd_led(uint8_t onoff)
+{
+	if(onoff)
+		dataport &= ~_BV(LCD_LED_PIN);
+	else
+		dataport |= _BV(LCD_LED_PIN);
+	pcf8574_setoutput(LCD_PCF8574_DEVICEID, dataport);
+}
+
+// курсов в начало координат
+void lcd_home(void)
+{
+    lcd_command(1<<LCD_HOME);
+}
+
+// отображение символа в текущей позиции курсора
+void lcd_putc(char c)
+{
+    uint8_t pos;
+
+    pos = lcd_waitbusy();
+    if (c=='\n')
+    {
+        lcd_newline(pos);
+    }
+    else
+    {
+#if LCD_WRAP_LINES==1
+#if LCD_LINES==1
+        if ( pos == LCD_START_LINE1+LCD_DISP_LENGTH ) {
+            lcd_write((1<<LCD_DDRAM)+LCD_START_LINE1,0);
+        }
+#elif LCD_LINES==2
+        if ( pos == LCD_START_LINE1+LCD_DISP_LENGTH ) {
+            lcd_write((1<<LCD_DDRAM)+LCD_START_LINE2,0);    
+        }else if ( pos == LCD_START_LINE2+LCD_DISP_LENGTH ){
+            lcd_write((1<<LCD_DDRAM)+LCD_START_LINE1,0);
+        }
+#elif LCD_LINES==4
+        if ( pos == LCD_START_LINE1+LCD_DISP_LENGTH ) {
+            lcd_write((1<<LCD_DDRAM)+LCD_START_LINE2,0);    
+        }else if ( pos == LCD_START_LINE2+LCD_DISP_LENGTH ) {
+            lcd_write((1<<LCD_DDRAM)+LCD_START_LINE3,0);
+        }else if ( pos == LCD_START_LINE3+LCD_DISP_LENGTH ) {
+            lcd_write((1<<LCD_DDRAM)+LCD_START_LINE4,0);
+        }else if ( pos == LCD_START_LINE4+LCD_DISP_LENGTH ) {
+            lcd_write((1<<LCD_DDRAM)+LCD_START_LINE1,0);
+        }
+#endif
+        lcd_waitbusy();
+#endif
+        lcd_write(c, 1);
+    }
+}
+
+// вывод строки на дисплей
+void lcd_puts(const char *s)
+{
+    register char c;
+
+    while ( (c = *s++) ) {
+        lcd_putc(c);
+    }
+}
+
+// вывод строки из памяти
+void lcd_puts_p(const char *progmem_s)
+{
+    register char c;
+
+    while ( (c = pgm_read_byte(progmem_s++)) ) {
+        lcd_putc(c);
+    }
+}
+
+// инициализация дисплея
+void lcd_init(uint8_t dispAttr)
+{
+	#if LCD_PCF8574_INIT == 1
+	//инициализация pcf
+	pcf8574_init();
+	#endif
+
+	dataport = 0;
+	pcf8574_setoutput(LCD_PCF8574_DEVICEID, dataport);
+
+    delay(16000);
+
+    // первоначальная запись на ЖК-дисплей — 8 бит
+    dataport |= _BV(LCD_DATA1_PIN);  // _BV(LCD_FUNCTION)>>4;
+    dataport |= _BV(LCD_DATA0_PIN);  // _BV(LCD_FUNCTION_8BIT)>>4;
+    pcf8574_setoutput(LCD_PCF8574_DEVICEID, dataport);
+
+	// дрючим дисплей чтобы он начал работать
+    lcd_e_toggle();
+    delay(4992);
+    lcd_e_toggle();      
+    delay(64);        
+    lcd_e_toggle();      
+    delay(64);          
+
+    // переходим в 4 битный режим
+    dataport &= ~_BV(LCD_DATA0_PIN);
+    pcf8574_setoutput(LCD_PCF8574_DEVICEID, dataport);
+    lcd_e_toggle();
+    delay(64); 
+    
+
+    lcd_command(LCD_FUNCTION_DEFAULT);      // настраиваем кол-во строк
+    lcd_command(LCD_DISP_OFF);              // вырубаем дисплей
+    lcd_clrscr();                           // чистим экран
+    lcd_command(LCD_MODE_DEFAULT);          // запускаемся в стандартном режиме
+    lcd_command(dispAttr);                  // отправляем настройки
+}

MyLCD/lcdpcf8574.h

@@ -0,0 +1,110 @@
+#ifndef LCD_H
+#define LCD_H
+
+#define LCD_PCF8574_INIT 1 //èíèöèàëèçàöèÿ pcf
+
+#define LCD_PCF8574_DEVICEID 0 //id óñò-âà
+#define LCD_FUNCTION_DEFAULT    LCD_FUNCTION_4BIT_2LINES 
+
+// óñòàíîâêà ðåæèìà ââîäà: âêëþ÷åíèå/âûêëþ÷åíèå ñìåùåíèÿ äèñïëåÿ, íàïðàâëåíèå ïåðåìåùåíèÿ êóðñîðà óìåíüøàòü/óâåëè÷èâàòü
+#define LCD_ENTRY_DEC            0x04   // ñìåùåíèå äèñïëåÿ âûêëþ÷åíî, êóðñîð ïåðåìåùàåòñÿ ïî íàêëîíó
+#define LCD_ENTRY_DEC_SHIFT      0x05   // âêëþ÷åíèå ñäâèãà äèñïëåÿ, ïåðåìåùåíèå êóðñîðà ïî íàêëîíó
+#define LCD_ENTRY_INC_           0x06   // ñìåùåíèå äèñïëåÿ âûêëþ÷åíî, âêë. ïåðåìåùåíèå êóðñîðà â íàïðàâëåíèè
+#define LCD_ENTRY_INC_SHIFT      0x07   // âêëþ÷åíèå ñìåùåíèÿ äèñïëåÿ, óâåëè÷åíèå íàïðàâëåíèÿ ïåðåìåùåíèÿ êóðñîðà
+
+// âêëþ÷åíèå/âûêëþ÷åíèå äèñïëåÿ, âêëþ÷åíèå/âûêëþ÷åíèå êóðñîðà, ìèãàþùèé ñèìâîë â ïîçèöèè êóðñîðà
+#define LCD_DISP_OFF             0x08   // äèñïëåé âûêëþ÷åí
+#define LCD_DISP_ON              0x0C   // äèñïëåé âêë, êóðñîð âûêë
+#define LCD_DISP_ON_BLINK        0x0D   // äèñïëåé âêë, êóðñîð âûêë, åñòü ìèãàþùèé ñèìâë
+#define LCD_DISP_ON_CURSOR       0x0E   // äèñïëåé âêë, êóðñîð âêë
+#define LCD_DISP_ON_CURSOR_BLINK 0x0F   // äèñïëåé âêë, êóðñîð âêë, åñòü ìèãàþùèé ñèìâë
+
+// ïåðåìåùåíèå êóðñîðà/ñìåùåíèå äèñïëåÿ
+#define LCD_MOVE_CURSOR_LEFT     0x10   // êóðñîð íàëåâî
+#define LCD_MOVE_CURSOR_RIGHT    0x14   // êóðñîð íàïðàâî
+#define LCD_MOVE_DISP_LEFT       0x18   // ñäâèã âëåâî
+#define LCD_MOVE_DISP_RIGHT      0x1C   // ñäâèã âïðàâî
+
+// íàáîð ôóíêöèé: óñòàíîâêà äëèíû äàííûõ èíòåðôåéñà è êîëè÷åñòâà ñòðîê îòîáðàæåíèÿ
+#define LCD_FUNCTION_4BIT_1LINE  0x20   // 4-áèòíûé èíòåðôåéñ, îäíà ñòðîêà, 5x7 òî÷åê
+#define LCD_FUNCTION_4BIT_2LINES 0x28   // 4-áèòíûé èíòåðôåéñ, äâóõñòðî÷íûé, 5x7 òî÷åê
+#define LCD_FUNCTION_8BIT_1LINE  0x30   // 8-áèòíûé èíòåðôåéñ, îäíà ñòðîêà, 5x7 òî÷åê
+#define LCD_FUNCTION_8BIT_2LINES 0x38   // 8-áèòíûé èíòåðôåéñ, äâóõñòðî÷íûé, 5x7 òî÷åê
+
+#define LCD_LINES           2	  // êîë-âî ñòðîê
+#define LCD_DISP_LENGTH    16     // êîë-âî ñèìâîëîâ â ñòðîêå
+#define LCD_LINE_LENGTH  0x40	  // âíóòðåííÿÿ äëèíà ñòðîêè äèñïëåÿ
+#define LCD_START_LINE1  0x00     // DDRM àäðåñ äëÿ 1 ñòðîêè
+#define LCD_START_LINE2  0x40     // DDRM àäðåñ äëÿ 2 ñòðîêè
+#define LCD_WRAP_LINES      1     // ïåðåíîñ ñòðîêè
+
+
+
+#define LCD_DATA0_PIN    4            // ïèí äëÿ äàííûõ
+#define LCD_DATA1_PIN    5            // ïèí äëÿ äàííûõ
+#define LCD_DATA2_PIN    6            // ïèí äëÿ äàííûõ
+#define LCD_DATA3_PIN    7            // ïèí äëÿ äàííûõ
+#define LCD_RS_PIN       0            // ïèí ëèíèè RS
+#define LCD_RW_PIN       1            // ïèí ëèíèè RW
+#define LCD_E_PIN        2            // ïèí ëèíèè òàêòèðîâàíèÿ
+#define LCD_LED_PIN      3            // ïèí ïîäñâåòêè
+
+
+// Ïîçèöèè áèòîâ ðåãèñòðà êîìàíä HD44780U.
+#define LCD_CLR               0      // îò÷èñòèòü äèñïëåé
+#define LCD_HOME              1      // âåðíóòü êóðñîð äîìîé
+#define LCD_ENTRY_MODE        2      // óñòàíîâêà ðåæèìà ââîäà
+#define LCD_ENTRY_INC         1      // èíêðåìåíò
+#define LCD_ENTRY_SHIFT       0      // âêë ñìåùåíèå
+#define LCD_ON                3      // âêë êóðñîðà
+#define LCD_ON_DISPLAY        2      // âûêë äèñïëåé
+#define LCD_ON_CURSOR         1      // âûêë êóðñîð
+#define LCD_ON_BLINK          0      // ìèãàíèå êóðñîðà
+#define LCD_MOVE              4      // ïåðåäâèæåíèå êóðñîðà
+#define LCD_MOVE_DISP         3      // ïåðåäâèæåíèå êóðñîðà
+#define LCD_MOVE_RIGHT        2      // ïåðåäâèæåíèå êóðñîðà íàïðàâî
+#define LCD_FUNCTION          5      // íàñòðîéêà ôóíêöèé
+#define LCD_FUNCTION_8BIT     4      // 8 áèòíûé ðåæèì
+#define LCD_FUNCTION_2LINES   3      // àêòèâàöèÿ ñòðîê
+#define LCD_FUNCTION_10DOTS   2      // øðèôòû
+#define LCD_CGRAM             6      // óñòàíîâêà àäðåñà CG RAM
+#define LCD_DDRAM             7      // óñòàíîâêà àäðåñà DD RAM
+#define LCD_BUSY              7      // äèñïëåé çàíÿò
+
+// ñòàíäàðòíûé ðåæèì
+#define LCD_MODE_DEFAULT     ((1<<LCD_ENTRY_MODE) | (1<<LCD_ENTRY_INC) )
+
+// èíèöèàëèçàöèÿ äèñïëåÿ
+void lcd_init(uint8_t dispAttr);
+
+// î÷èñòêà äèñïëåÿ
+void lcd_clrscr(void);
+
+// êóðñîâ â íà÷àëî êîîðäèíàò
+void lcd_home(void);
+
+// ïåðåìåùåíèå êóðñîðà ïî êîîðäèíàòàì
+void lcd_gotoxy(uint8_t x, uint8_t y);
+
+// âêë è îòêë ïîäñâåòêè
+void lcd_led(uint8_t onoff);
+
+// îòîáðàæåíèå ñèìâîëà â òåêóùåé ïîçèöèè êóðñîðà
+void lcd_putc(char c);
+
+// âûâîä ñòðîêè íà äèñïëåé
+void lcd_puts(const char *s);
+
+// âûâîä ñòðîêè èç ïàìÿòè
+void lcd_puts_p(const char *progmem_s);
+
+// ñëóæåáíàÿ ôóíêöèÿ äëÿ îòïðàâêè êîìàíä äèñïëåþ
+void lcd_command(uint8_t cmd);
+
+// îòïðàâêà áàéòà íà äèñïëåé
+void lcd_data(uint8_t data);
+
+// ìàêðîñû äëÿ àâòîìàòè÷åñêîãî ñîõðàíåíèÿ ñòðîêîâîé êîíñòàíòû â ïàìÿòè ïðîãðàììû
+#define lcd_puts_P(__s)         lcd_puts_p(PSTR(__s))
+
+#endif

MyLCD/pcf8574.cpp

@@ -0,0 +1,115 @@
+#include "MyLCD.h"
+uint8_t pcf8574_pinstatus[PCF8574_MAXDEVICES];
+
+// инициализация pcf
+void pcf8574_init() {
+	#if PCF8574_I2CINIT == 1
+	// инитим i2c
+	i2c_init();
+	_delay_us(10);
+	#endif
+	uint8_t i = 0;
+	for(i=0; i<PCF8574_MAXDEVICES; i++)
+		pcf8574_pinstatus[i] = 0;
+
+}
+
+// получаем статус вывода
+int8_t pcf8574_getoutput(uint8_t deviceid) {
+	int8_t data = -1;
+	if((deviceid >= 0 && deviceid < PCF8574_MAXDEVICES)) {
+		data = pcf8574_pinstatus[deviceid];
+	}
+	return data;
+}
+
+// получаем статус пинов вывода
+int8_t pcf8574_getoutputpin(uint8_t deviceid, uint8_t pin) {
+	int8_t data = -1;
+	if((deviceid >= 0 && deviceid < PCF8574_MAXDEVICES) && (pin >= 0 && pin < PCF8574_MAXPINS)) {
+		data = pcf8574_pinstatus[deviceid];
+		data = (data >> pin) & 0b00000001;
+	}
+	return data;
+}
+
+// настройка вывода
+int8_t pcf8574_setoutput(uint8_t deviceid, uint8_t data) {
+	if((deviceid >= 0 && deviceid < PCF8574_MAXDEVICES)) {
+		pcf8574_pinstatus[deviceid] = data;
+		i2c_start(((PCF8574_ADDRBASE+deviceid)<<1) | I2C_WRITE);
+		i2c_write(data);
+		i2c_stop();
+		return 0;
+	}
+	return -1;
+}
+
+// установить выходные контакты, заменить фактический статус устройства из pinstart для i2c
+int8_t pcf8574_setoutputpins(uint8_t deviceid, uint8_t pinstart, uint8_t pinlength, int8_t data) {
+	if((deviceid >= 0 && deviceid < PCF8574_MAXDEVICES) && (pinstart - pinlength + 1 >= 0 && pinstart - pinlength + 1 >= 0 && pinstart < PCF8574_MAXPINS && pinstart > 0 && pinlength > 0)) {
+	    uint8_t b = 0;
+	    b = pcf8574_pinstatus[deviceid];
+	    uint8_t mask = ((1 << pinlength) - 1) << (pinstart - pinlength + 1);
+		data <<= (pinstart - pinlength + 1);
+		data &= mask;
+		b &= ~(mask);
+		b |= data;
+	    pcf8574_pinstatus[deviceid] = b;
+	    //рестартим
+		i2c_start(((PCF8574_ADDRBASE+deviceid)<<1) | I2C_WRITE);
+		i2c_write(b);
+		i2c_stop();
+		return 0;
+	}
+	return -1;
+}
+
+// настройка пинов вывода
+int8_t pcf8574_setoutputpin(uint8_t deviceid, uint8_t pin, uint8_t data) {
+	if((deviceid >= 0 && deviceid < PCF8574_MAXDEVICES) && (pin >= 0 && pin < PCF8574_MAXPINS)) {
+	    uint8_t b = 0;
+	    b = pcf8574_pinstatus[deviceid];
+	    b = (data != 0) ? (b | (1 << pin)) : (b & ~(1 << pin));
+	    pcf8574_pinstatus[deviceid] = b;
+	    //рестартим
+		i2c_start(((PCF8574_ADDRBASE+deviceid)<<1) | I2C_WRITE);
+		i2c_write(b);
+		i2c_stop();
+		return 0;
+	}
+	return -1;
+}
+
+// установка высокого уровня на выходных пинах
+int8_t pcf8574_setoutputpinhigh(uint8_t deviceid, uint8_t pin) {
+	return pcf8574_setoutputpin(deviceid, pin, 1);
+}
+
+// установка низкого уровня на выходных пинах
+int8_t pcf8574_setoutputpinlow(uint8_t deviceid, uint8_t pin) {
+	return pcf8574_setoutputpin(deviceid, pin, 0);
+}
+
+// получение входных данных
+int8_t pcf8574_getinput(uint8_t deviceid) {
+	int8_t data = -1;
+	if((deviceid >= 0 && deviceid < PCF8574_MAXDEVICES)) {
+		i2c_start(((PCF8574_ADDRBASE+deviceid)<<1) | I2C_READ);
+		data = ~i2c_readNak();
+		i2c_stop();
+	}
+	return data;
+}
+
+// получение входного контакта (высокий или низкий)
+int8_t pcf8574_getinputpin(uint8_t deviceid, uint8_t pin) {
+	int8_t data = -1;
+	if((deviceid >= 0 && deviceid < PCF8574_MAXDEVICES) && (pin >= 0 && pin < PCF8574_MAXPINS)) {
+		data = pcf8574_getinput(deviceid);
+		if(data != -1) {
+			data = (data >> pin) & 0b00000001;
+		}
+	}
+	return data;
+}

MyLCD/pcf8574.h

@@ -0,0 +1,21 @@
+#ifndef PCF8574_H_
+#define PCF8574_H_
+
+#define PCF8574_ADDRBASE (0x27) // àäðåñ óñò-âà
+
+#define PCF8574_I2CINIT 1 // èíèöèàëèçàöèÿ i2c
+
+#define PCF8574_MAXDEVICES 1 // ìàêñ êîë-âî óòðîéñòâ
+#define PCF8574_MAXPINS 8 // ìàêñ êîë-âî ïèíîâ
+
+void pcf8574_init();
+int8_t pcf8574_getoutput(uint8_t deviceid);
+int8_t pcf8574_getoutputpin(uint8_t deviceid, uint8_t pin);
+int8_t pcf8574_setoutput(uint8_t deviceid, uint8_t data);
+int8_t pcf8574_setoutputpins(uint8_t deviceid, uint8_t pinstart, uint8_t pinlength, int8_t data);
+int8_t pcf8574_setoutputpin(uint8_t deviceid, uint8_t pin, uint8_t data);
+int8_t pcf8574_setoutputpinhigh(uint8_t deviceid, uint8_t pin);
+int8_t pcf8574_setoutputpinlow(uint8_t deviceid, uint8_t pin);
+int8_t pcf8574_getinput(uint8_t deviceid);
+int8_t pcf8574_getinputpin(uint8_t deviceid, uint8_t pin);
+#endif

MyLCD/twimaster.cpp

@@ -1,117 +1,117 @@
-#include "MyLCD.h"
+#include "MyLCD.h"
-
+
-// инициализация интерфейса i2c
+// инициализация интерфейса i2c
-void i2c_init(void)
+void i2c_init(void)
-{
+{
-  // предделитель тактовой частоты равен 1 
+  // предделитель тактовой частоты равен 1 
-  TWSR = 0;     
+  TWSR = 0;     
-  // рассчет скорости передачи данных                   
+  // рассчет скорости передачи данных                   
-  TWBR = ((F_CPU/SCL_CLOCK)-16)/2;
+  TWBR = ((F_CPU/SCL_CLOCK)-16)/2;
-}
+}
-
+
-// передача условия СТАРТ на шину
+// передача условия СТАРТ на шину
-unsigned char i2c_start(unsigned char address)
+unsigned char i2c_start(unsigned char address)
-{
+{
-    uint8_t   twst;
+    uint8_t   twst;
-	
+	
-	// отправка условия СТАРТ
+	// отправка условия СТАРТ
-	TWCR = (1<<TWINT) | (1<<TWSTA) | (1<<TWEN);
+	TWCR = (1<<TWINT) | (1<<TWSTA) | (1<<TWEN);
-	// ожидание завершения передачи условия СТАРТ
+	// ожидание завершения передачи условия СТАРТ
-	while(!(TWCR & (1<<TWINT)));
+	while(!(TWCR & (1<<TWINT)));
-	// проверка значений регистра
+	// проверка значений регистра
-	twst = TW_STATUS & 0xF8;
+	twst = TW_STATUS & 0xF8;
-	if ( (twst != TW_START) && (twst != TW_REP_START)) return 1;
+	if ( (twst != TW_START) && (twst != TW_REP_START)) return 1;
-	// отправка адреса устрой-ва
+	// отправка адреса устрой-ва
-	TWDR = address;
+	TWDR = address;
-	TWCR = (1<<TWINT) | (1<<TWEN);
+	TWCR = (1<<TWINT) | (1<<TWEN);
-	// ожидание ответа от ведомого уст-ва
+	// ожидание ответа от ведомого уст-ва
-	while(!(TWCR & (1<<TWINT)));
+	while(!(TWCR & (1<<TWINT)));
-	// проверка полученных значений
+	// проверка полученных значений
-	twst = TW_STATUS & 0xF8;
+	twst = TW_STATUS & 0xF8;
-	if ( (twst != TW_MT_SLA_ACK) && (twst != TW_MR_SLA_ACK) ) return 1;
+	if ( (twst != TW_MT_SLA_ACK) && (twst != TW_MR_SLA_ACK) ) return 1;
-
+
-	return 0;
+	return 0;
-
+
-}
+}
-
+
-// ждем, если устрой-во занято, а потом передаем условие СТАРТ на шину
+// ждем, если устрой-во занято, а потом передаем условие СТАРТ на шину
-void i2c_start_wait(unsigned char address)
+void i2c_start_wait(unsigned char address)
-{
+{
-    uint8_t   twst;
+    uint8_t   twst;
-
+
-    for(;;)
+    for(;;)
-    {
+    {
-	    // отправка условия СТАРТ
+	    // отправка условия СТАРТ
-	    TWCR = (1<<TWINT) | (1<<TWSTA) | (1<<TWEN);
+	    TWCR = (1<<TWINT) | (1<<TWSTA) | (1<<TWEN);
-    	// ожидание завершения передачи условия СТАРТ
+    	// ожидание завершения передачи условия СТАРТ
-    	while(!(TWCR & (1<<TWINT)));
+    	while(!(TWCR & (1<<TWINT)));
-    	// проверка значений регистра
+    	// проверка значений регистра
-    	twst = TW_STATUS & 0xF8;
+    	twst = TW_STATUS & 0xF8;
-    	if ( (twst != TW_START) && (twst != TW_REP_START)) continue;
+    	if ( (twst != TW_START) && (twst != TW_REP_START)) continue;
-    	// отправка адреса устрой-ва
+    	// отправка адреса устрой-ва
-    	TWDR = address;
+    	TWDR = address;
-    	TWCR = (1<<TWINT) | (1<<TWEN);
+    	TWCR = (1<<TWINT) | (1<<TWEN);
-    	 // ожидание ответа от ведомого уст-ва
+    	 // ожидание ответа от ведомого уст-ва
-    	while(!(TWCR & (1<<TWINT)));
+    	while(!(TWCR & (1<<TWINT)));
-    	// проверка занято ли ведомое уст-во
+    	// проверка занято ли ведомое уст-во
-    	twst = TW_STATUS & 0xF8;
+    	twst = TW_STATUS & 0xF8;
-    	if ( (twst == TW_MT_SLA_NACK )||(twst ==TW_MR_DATA_NACK) ) 
+    	if ( (twst == TW_MT_SLA_NACK )||(twst ==TW_MR_DATA_NACK) ) 
-    	{    	    
+    	{    	    
-    	    // устройство занято, отправьте условие остановки для прекращения операции записи
+    	    // устройство занято, отправьте условие остановки для прекращения операции записи
-	        TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
+	        TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
-	        // ждем освобождения шины
+	        // ждем освобождения шины
-	        while(TWCR & (1<<TWSTO));
+	        while(TWCR & (1<<TWSTO));
-    	    continue;
+    	    continue;
-    	}
+    	}
-    	break;
+    	break;
-     }
+     }
-}
+}
-
+
-// тупа повторяем условие СТАРТ
+// тупа повторяем условие СТАРТ
-unsigned char i2c_rep_start(unsigned char address)
+unsigned char i2c_rep_start(unsigned char address)
-{
+{
-    return i2c_start(address);
+    return i2c_start(address);
-}
+}
-
+
-// передача условия СТОП на шину
+// передача условия СТОП на шину
-void i2c_stop(void)
+void i2c_stop(void)
-{
+{
-    // отправка условия СТОП
+    // отправка условия СТОП
-	TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
+	TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
-	// ждем выполнения условия остановки
+	// ждем выполнения условия остановки
-	while(TWCR & (1<<TWSTO));
+	while(TWCR & (1<<TWSTO));
-}
+}
-
+
-// отправка данных, если функция вернет 0, то все успешно, иначе нет
+// отправка данных, если функция вернет 0, то все успешно, иначе нет
-unsigned char i2c_write( unsigned char data )
+unsigned char i2c_write( unsigned char data )
-{	
+{	
-    uint8_t   twst;
+    uint8_t   twst;
-    
+    
-	// отправляем данные на уст-во
+	// отправляем данные на уст-во
-	TWDR = data;
+	TWDR = data;
-	TWCR = (1<<TWINT) | (1<<TWEN);
+	TWCR = (1<<TWINT) | (1<<TWEN);
-	// ждем завершения передачи
+	// ждем завершения передачи
-	while(!(TWCR & (1<<TWINT)));
+	while(!(TWCR & (1<<TWINT)));
-	// записываем ответ от ведомого уст-ва
+	// записываем ответ от ведомого уст-ва
-	twst = TW_STATUS & 0xF8;
+	twst = TW_STATUS & 0xF8;
-	if( twst != TW_MT_DATA_ACK) return 1;
+	if( twst != TW_MT_DATA_ACK) return 1;
-	return 0;
+	return 0;
-}
+}
-
+
-// читаем данные и продолжаем вещание
+// читаем данные и продолжаем вещание
-unsigned char i2c_readAck(void)
+unsigned char i2c_readAck(void)
-{
+{
-	TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWEA);
+	TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWEA);
-	while(!(TWCR & (1<<TWINT)));    
+	while(!(TWCR & (1<<TWINT)));    
-
+
-    return TWDR;
+    return TWDR;
-}
+}
-
+
-// читаем данные и после их получения передаем услови СТОП
+// читаем данные и после их получения передаем услови СТОП
-unsigned char i2c_readNak(void)
+unsigned char i2c_readNak(void)
-{
+{
-	TWCR = (1<<TWINT) | (1<<TWEN);
+	TWCR = (1<<TWINT) | (1<<TWEN);
-	while(!(TWCR & (1<<TWINT)));
+	while(!(TWCR & (1<<TWINT)));
-	
+	
-    return TWDR;
+    return TWDR;
-}
+}

Readme.md

@@ -12,5 +12,4 @@
 * Отрисовка данных на дисплей
 
 Деркачев Андрей
-* Соединения и рефактор блоков UART, HDLC и вывода
+* Соединения и рефактор блоков UART, HDLC и вывода
-* Работа с I2C

UART/circular_buf.c

@@ -0,0 +1,36 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "circular_buf.h"
+
+
+void initialize_buffer(struct circular_buffer* cb) {
+	cb->buf_head = 0;
+	cb->buf_tail = 0;
+}
+// Проверка, пустой ли буфер
+int buffer_empty(const struct circular_buffer* cb) {
+	return cb->buf_head == cb->buf_tail;
+}
+// Проверка, заполнен ли буфер
+int buffer_full(const struct circular_buffer* cb) {
+	return (cb->buf_tail + 1) % BUFFER_SIZE == cb->buf_head; //проверяем следующее число, если оно будет совпадать с индексом головы то будет false, при совпадении вывод true
+}
+// Запись в буфер
+void write_buffer(struct circular_buffer* cb, int value) {
+	if (buffer_full(cb)) { // проверяем, заполнен ли буфер
+		return;
+	}
+	cb->buffer[cb->buf_tail] = value;// записываем значение в элемент массива в хвост
+	cb->buf_tail = (cb->buf_tail + 1) % BUFFER_SIZE;// присваивается cb->buf_tail, обновляется его значение на следующий индекс в буфере
+}
+// Чтение элемента
+int read_buffer(struct circular_buffer* cb) {
+	if (buffer_empty(cb)) { // проверка на пустоту
+		return -1;// -1  как индикатор в случае ошибки
+	}
+	int value = cb->buffer[cb->buf_head]; // чтение по индексу головы
+	cb->buf_head = (cb->buf_head + 1) % BUFFER_SIZE; // увеличиваем индекс на 1
+	return value;
+}
+
+

UART/circular_buf.h

@@ -0,0 +1,18 @@
+#ifndef CIRCULAR_BUFFER_H
+#define CIRCULAR_BUFFER_H
+
+#define BUFFER_SIZE 32
+
+struct circular_buffer{
+	unsigned char buffer[BUFFER_SIZE];
+	unsigned char buf_head;
+	unsigned char buf_tail;
+};
+
+void initialize_buffer(struct circular_buffer* cb);
+int buffer_empty(const struct circular_buffer* cb);
+int buffer_full(const struct circular_buffer* cb);
+void write_buffer(struct circular_buffer* cb, int value);
+int read_buffer(struct circular_buffer* cb);
+
+#endif /* CIRCULAR_BUFFER_H */

UART/uart.c

@@ -0,0 +1,61 @@
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <stdint.h>
+#include <string.h>
+#include "circular_buf.h"
+#include "uart.h"
+
+struct circular_buffer uartRxBuffer;
+struct circular_buffer uartTxBuffer;
+
+void UART_init(void) {
+	UCSR0B = (1 << RXEN0) | (1 << TXEN0) | (1 << RXCIE0) | (1<<TXCIE0) | (1 << UDRIE0); // прерывание по приему и передаче
+	UCSR0C = (1 << UCSZ01) | (1 << UCSZ00);
+	UBRR0H = 0;
+	UBRR0L = 103;
+}
+
+void UART_send(uint8_t* data, size_t length) {
+	for (size_t i = 0; i < length; i++) {
+		if (!buffer_full(&uartTxBuffer)) {
+			write_buffer(&uartTxBuffer, data[i]);
+			} else {
+			break; // если буфер передачи заполнен, то отправка прерывается
+		}
+	}
+	UCSR0B |= (1 << TXCIE0); // включаем прерывание по завершении передачи
+}
+
+// Получение данных из буфера
+int UART_receive(uint8_t* data, size_t length) {
+    char overflow = 0;  // Флаг переполнения, который устанавливается, если превышен размер массива 
+    uint32_t byteCount = 0;  // Счетчик байтов, принятых из буфера приема
+    // Пока буфер приема не пуст и не превышен лимит длины массива,
+    // функция продолжает читать байты из буфера и сохранять их в массив data.
+    while (!buffer_empty(&uartRxBuffer) && byteCount < length) {
+        int reader = read_buffer(&uartRxBuffer);  // Прием и запись символа в переменную
+        data[byteCount] = reader;  // Запись в массив с индексом byteCount
+        byteCount++;
+    }
+    // Проверка переполнения
+    if (byteCount > length) {
+        overflow = 1;
+    }
+    return overflow ? -1 : byteCount;  // Возвращает количество успешно принятых байт или -1 в случае переполнения
+}
+
+// прерывание по завершению приема
+ISR(USART_RX_vect) {
+	uint8_t data = UDR0; // читаем из регистра UDR0
+	if (!buffer_full(&uartRxBuffer)) {
+		write_buffer(&uartRxBuffer, data);// записываем символ в буфер приема
+	}
+}
+
+ISR(USART_TX_vect) {
+	if (!buffer_empty(&uartTxBuffer)) {
+		UDR0 = read_buffer(&uartTxBuffer);
+	} else {
+		UCSR0B &= ~(1 << TXCIE0); // отключаем прерывание, когда все данные отправлены
+	}
+}

UART/uart.h

@@ -0,0 +1,13 @@
+#ifndef UART_H
+#define UART_H
+#include <stdint.h> 
+#include <stddef.h>
+
+#define F_CPU 16000000
+
+void UART_init(void);
+void UART_send(uint8_t* data, size_t length);
+int UART_receive(uint8_t* data, size_t length);
+
+
+#endif /* UART_H */

frame.c

@@ -1,380 +0,0 @@
-#include "frame.h"
-
-#include <stdio.h>
-
-extern int window_length;
-extern int raw_data_length;
-extern int frame_number_range;
-
-
-/* 33 crc*/
-short crc[] = {1, 0, 0, 0, 0, 0,
-               1, 0, 0, 1, 1, 0,
-               0, 0, 0, 0, 1,
-               0, 0, 0, 1, 1, 1,
-               0, 1, 1, 0, 1, 1,
-               0, 1, 1, 1};
-
-
-
-short send_receive_num[][3] = {{0, 0, 0},
-                               {0, 0, 1},
-                               {0, 1, 0},
-                               {0, 1, 1},
-                               {1, 0, 0},
-                               {1, 0, 1},
-                               {1, 1, 0},
-                               {1, 1, 1}
-};
-
-static Frame *fill_flag_and_fcs(Frame *p_frame) {
-
-    short s[] = {0, 1, 1, 1, 1, 1, 1, 0};
-    int i;
-    for (i = 0; i < 8; ++i) {
-        p_frame ->head_flag[i] = s[i];
-        p_frame ->rail_flag[i] = s[i];
-    }
-    for (i = 0; i < (sizeof(crc) / sizeof(short) - 1); ++i) {
-        p_frame ->fcs[i] = 0;
-    }
-
-    return p_frame;
-}
-
-static Frame *create_generic_unnumbered_frame(Frame *p_frame) {
-
-    fill_flag_and_fcs(p_frame);
-    p_frame ->control[0] = 1;
-    p_frame ->control[1] = 1;
-    p_frame ->s.size = 0;
-    return p_frame;
-}
-
-static Frame *create_generic_info_frame(Frame *p_frame) {
-
-    fill_flag_and_fcs(p_frame);
-    p_frame ->control[0] = 0;
-    p_frame ->s.size = 0;
-    return p_frame;
-}
-
-static Frame *create_generic_sup_frame(Frame *p_frame) {
-
-    fill_flag_and_fcs(p_frame);
-    p_frame ->control[0] = 1;
-    p_frame ->control[1] = 0;
-    p_frame ->s.size = 0;
-    return p_frame;
-}
-
-
-static void convert_frame_to_seq(Frame *p_frame, short seq[], int *size) {
-
-    int i;
-    (*size) = 0;
-    for (i = 0; i < 8; ++i) {
-        seq[*size] = p_frame ->address[i];
-        ++(*size);
-    }
-
-    for (i = 0; i < 8; ++i) {
-        seq[*size] = p_frame ->control[i];
-        ++(*size);
-    }
-
-    for (i = 0; i < p_frame ->s.size; ++i) {
-        if (1 == (p_frame ->s.infor_type[i])) {
-            seq[*size] = p_frame ->s.information[i];
-            ++(*size);
-        }
-    }
-    for (i = 0; i < sizeof(crc) / sizeof(short) - 1; ++i) {
-        seq[*size] = p_frame ->fcs[i];
-        ++(*size);
-    }
-}
-/* 0 has been filled before calling this method.*/
-
-static int seq_fcs(short seq[], int size) {
-
-    int i;
-    int non_zero = 0;
-    int temp_non_zero;
-    bool new_non_zero = 0;
-
-    for (i = 0; i < size; ++i) {
-        if (1 == seq[i]) {
-            non_zero = i;
-            new_non_zero = 1;
-            break;
-        }
-    }
-
-    for (;non_zero <= size - sizeof(crc)/sizeof(short);) {
-        new_non_zero = 0;
-        temp_non_zero = -1;
-        for (i = non_zero; i < non_zero + sizeof(crc)/sizeof(short); ++i) {
-            seq[i] ^= crc[i - non_zero];
-            if ((1 == seq[i]) && !new_non_zero) {
-                temp_non_zero = i;
-                new_non_zero = 1;
-            }
-        }
-
-        if (-1 == temp_non_zero) {
-            for (i = non_zero + sizeof(crc) / sizeof(short); i < size; ++i) {
-                if (1 == seq[i]) {
-                    non_zero = i;
-                    break;
-                }
-            }
-            if (i == size) return -1;
-        } else {
-            non_zero = temp_non_zero;
-        }
-    }
-
-    return non_zero;
-}
-
-/*Here add fcs to one frame*/
-static void add_fcs_to_frame(Frame *p_frame) {
-
-    short seq[1024];
-    int size = 0;
-    int i;
-    int non_zero = 0;
-
-    convert_frame_to_seq(p_frame, seq, &size);
-
-    seq_fcs(seq, size);
-
-    for (i = 0; i < sizeof(crc)/sizeof(short) - 1; ++i) {
-        p_frame ->fcs[i] = seq[size - (sizeof(crc)/sizeof(short) - 1) + i];
-    }
-}
-
-
-static void convert_decimal_2_binary(int decimal, short binary[]) {
-
-    binary[2] = decimal % 2;
-    binary[0] = decimal / 4;
-    binary[1] = (decimal - binary[0] * 4) / 2;
-}
-
-/*Here create SABME, UA and DISC.*/
-Frame create_unnumbered_frame(short addr[], enum FRAME_TYPE ft, bool p_f) {
-
-    Frame f;
-    short s1[] = {1, 1, 0, 1, 1, 0};/* For SABME*/
-    short s2[] = {0, 0, 0, 1, 1, 0};/* For UA*/
-    short s3[] = {0, 0, 0, 0, 1, 0};/* For DISC*/
-    int i;
-
-    create_generic_unnumbered_frame(&f);
-
-    for (i = 0; i < 8; ++i) {
-        f.address[i] = addr[i];
-    }
-
-    switch(ft) {
-        case SABME :
-            for (i = 2; i < 8; ++i) {
-                f.control[i] = s1[i - 2];
-            }
-            break;
-
-        case UA :
-            for (i = 2; i < 8; ++i) {
-                f.control[i] = s2[i - 2];
-            }
-            break;
-
-        case DISC :
-            for (i = 2; i < 8; ++i) {
-                f.control[i] = s3[i - 2];
-            }
-            break;
-        default : fprintf(stderr, "Call create unnumbered frame error!\n");
-
-            break;
-    }
-
-    f.control[4] = p_f;
-
-    add_fcs_to_frame(&f);
-    return f;
-}
-
-Frame create_sup_frame(short addr[], enum FRAME_TYPE ft, bool p_f, short want_receive) {
-    Frame f;
-    int i;
-    short next_receive[3];
-    create_generic_sup_frame(&f);
-
-    for (i = 0; i < 8; ++i) {
-        f.address[i] = addr[i];
-    }
-
-    f.control[2] = 0;
-    switch(ft) {
-        case RR :
-            f.control[3] = 0;
-            break;
-        case REJ :
-            f.control[3] = 1;
-            break;
-        default :
-            fprintf(stderr, "create sup frame error!\n");
-            break;
-    }
-    f.control[4] = p_f;
-
-
-    convert_decimal_2_binary(want_receive, next_receive);
-    for (i = 5; i < 8; ++i) {
-        f.control[i] = next_receive[i - 5];
-    }
-
-    add_fcs_to_frame(&f);
-    return f;
-}
-
-
-
-/* prequestic : ($end - $start) % $raw_data_length = 0*/
-Frame* create_infor_frames(short addr[], short send_n, bool p_f, short receive_n,
-                           short data[], int start, int end, Frame *frames) { /*Normal data transferring.*/
-
-    Frame f;
-    int i;
-    int j;
-    int k;
-    int ite = 0;
-    short receive_number[3];
-    short send_number[3];
-
-    if ((end -start + 1) > (850 * window_length)) {
-        fprintf(stderr, "One frame takes too long data!\n");
-        return &f;
-    }
-
-    convert_decimal_2_binary(receive_n, receive_number);
-
-    for (ite = 0; ite < ((end - start) / raw_data_length); ++ite) {
-
-        create_generic_info_frame(&f);
-        convert_decimal_2_binary(send_n, send_number);
-        for (i = 1; i < 4; ++i) {
-
-            f.control[i] = send_number[i - 1];
-            f.control[i + 4] = receive_number[i - 1];
-        }
-
-        send_n = (send_n + 1) % frame_number_range;
-        f.control[4] = p_f;
-
-        j = 0;
-        k = 0;
-
-
-        /*bit stuffing!*/
-        for (i = start + ite * raw_data_length; i < start + (ite + 1) * raw_data_length; ++i) {
-
-            f.s.information[k] = data[i]; f.s.infor_type[k] = 1; ++k;  ++f.s.size;
-            if (1 == data[i]) {
-                if (4 == (i - j)) {
-                    f.s.information[k] = 0; f.s.infor_type[k] = 0; ++k;  ++f.s.size;
-                    j = i + 1;
-                }
-            } else {
-                j = i + 1;
-            }
-        }
-
-        add_fcs_to_frame(&f);
-        frames[ite] = f;
-    }
-    return frames;
-}
-
-short unnumbered[][8] = {
-        {1, 1, 1, 1, 0, 1, 1, 0}, /*SABME*/
-        {1, 1, 0, 0, 0, 1, 1, 0}, /*UA*/
-        {1, 1, 0, 0, 0, 0, 1, 0} /*DISC*/  };
-
-enum FRAME_TYPE get_frame_type(Frame *p_frame) {
-
-    if (0 == p_frame ->control[0]) {
-        return INFOR;
-    }
-
-    if (0 == p_frame ->control[1]) {
-        if (0 == p_frame ->control[3]) return RR;
-        else return REJ;
-    } else {
-        if (1 == p_frame ->control[2]) return SABME;
-        else {
-            if (1 == p_frame ->control[5]) return UA;
-            else return DISC;
-        }
-    }
-
-    fprintf(stdout, "Inteprete Frame type error!\n");
-    return INFOR;
-}
-
-void get_address(Frame *p_frame, short *storage) {
-
-    int i;
-    for (i = 0; i < 8; ++i) {
-        storage[i] = p_frame ->address[i];
-    }
-}
-
-/* Only for INFOR, */
-short get_send_number(Frame *p_frame) {
-
-    int num;
-    num = p_frame ->control[1] * 4 + p_frame ->control[2] * 2 + p_frame ->control[3];
-    return num;
-}
-/* For INFOR, RR, REJ.*/
-short get_expect_number(Frame *p_frame) {
-
-    int num;
-    num = p_frame ->control[5] * 4 + p_frame ->control[6] * 2 + p_frame ->control[7];
-    return num;
-}
-
-/* Only for INFOR.*/
-void get_infor(Frame *p_frame, short *storage, int *size) {
-    int i;
-    *size = 0;
-
-    for (i = 0; i < p_frame ->s.size; ++i) {
-        if (1 == p_frame ->s.infor_type[i]) {
-            storage[*size] = p_frame ->s.information[i];
-            ++(*size);
-        }
-    }
-}
-
-/*Here using fcs to judge whether the data is right.*/
-bool is_fcs_right(Frame *p_frame) {
-
-    short seq[1024];
-    int size = 0;
-    int non_zero;
-    int i;
-
-    convert_frame_to_seq(p_frame, seq, &size);
-
-    non_zero = seq_fcs(seq, size);
-    if (-1 == non_zero) {
-        return 1;
-    }
-
-    return 0;
-}

frame.h

@@ -1,57 +0,0 @@
-#ifndef _FRAME_H
-#define _FRAME_H
-
-typedef int bool;
-
-/*This is the frame structure in HDLC.*/
-typedef struct Frame {
-
-    short  head_flag[8];
-    short address[8];
-    short control[8];
-    struct{
-
-        /*Actuall size should also be arry. It is also sequence of '01', here I simplify it.*/
-        short size; /*Record the real length of the data.*/
-        short information[1024];/*Capacity is 1024.*/
-        short infor_type[1024]; /*0 : bit stuffing; 1 : real data.*/
-    }s;
-
-    short fcs[32];
-    short rail_flag[8];
-}Frame;
-
-enum FRAME_TYPE {SABME, DISC, UA, REJ, RR, INFOR};
-
-/* SABME, UA and DISC*/
-Frame create_unnumbered_frame(short addr[], enum FRAME_TYPE ft, bool p_f);
-
-/* REJ, RR*/
-Frame create_sup_frame(short addr[], enum FRAME_TYPE ft, bool p_f, short next_receive);
-
-/* Frame for normal data transferring.*/
-Frame* create_infor_frames(short addr[], short send_number, bool p_f,
-                           short receive_number, short data[], int start, int end, Frame *frames);/* Using $start,$end, better than $size*/
-
-/*Extract frame type from the given frame. */
-enum FRAME_TYPE get_frame_type(Frame *p_frame);
-
-
-/* Extract address field from the given frame.*/
-void get_address(Frame *p_frame, short *storage);
-
-/* The # of the frame.*/
-short get_send_number(Frame *p_frame);
-
-/* The # of the frame sender wants.*/
-short get_expect_number(Frame *p_frame);
-
-/* Extract the real data from the given frame.*/
-void get_infor(Frame *p_frame, short *storage, int *size);
-
-
-/*Here using fcs to judge whether the data is right.*/
-bool is_fcs_right(Frame *p_frame);
-
-
-#endif

hdlc/client.c

@@ -0,0 +1,129 @@
+#include "client.h"
+#include "hdlc.h"
+#include "stdio.h"
+
+#define SIZE_DATA_BUFFERS 64
+
+int connecting_frame_timeout_bf;
+
+void init_hdlc_client(struct Client* client, int connecting_frame_timeout){
+    client->state = IDLE_STATE;
+    client->connecting_frame_timeout = connecting_frame_timeout;
+    connecting_frame_timeout_bf = connecting_frame_timeout;
+    client->current_index_frame = 20;
+
+    client->current_state_hdlc.control_escape = 0;
+    client->current_state_hdlc.fcs = FCS_INIT_VALUE;
+    client->current_state_hdlc.start_index = -1;
+    client->current_state_hdlc.end_index = -1;
+    client->current_state_hdlc.src_index = 0;
+    client->current_state_hdlc.dest_index = 0;
+}
+
+void hdlc_connect(struct Client* client){
+    client->state = CONNECTING;
+
+    client->frameS.seq_no = 0;
+    client->frameS.frame = S_FRAME;
+    client->current_index_frame = client->frameS.seq_no;
+}
+
+int hdlc_send_data(struct Client* client, uint8_t data[], size_t data_len){
+    if (client->state != READY_STATE){
+        return ERR_INVALID_STATE;
+    }
+
+    client->state = RECIVING;
+
+    if (SIZE_DATA_BUFFERS < data_len){
+        return ERR_INVALID_DATA_SIZE;
+    }
+
+    client->frameI.seq_no = 0;
+    client->frameI.frame = I_FRAME;
+    client->data_i_frame = data;
+    client->len_data_i_frame = data_len;
+    client->current_index_frame = client->frameI.seq_no;
+
+    client->state = RECIVING;
+    return 0;
+}
+
+int hdlc_get_raw_frame(struct Client *client, uint8_t* buffer, size_t lenBuffer) {
+    if(client->state == RECIVING){
+        int ret = hdlc_frame_data(&client->frameI, client->data_i_frame,
+                                  client->len_data_i_frame, buffer, &lenBuffer);
+        if (ret < 0){
+            printf("err in get_frame: %d\n", ret);
+        }
+    }
+
+    if (client->state == CONNECTING){
+        int ret = hdlc_frame_data(&client->frameS, NULL, 0, buffer, &lenBuffer);
+
+        if (ret < 0){
+            printf("err in get_frame: %d\n", ret);
+        }
+    }
+
+    if (client->state == DISCONNECTING){
+        int ret = hdlc_frame_data(&client->frame_rej, NULL, 0, buffer, &lenBuffer);
+
+        if (ret < 0){
+            printf("err in get_frame: %d\n", ret);
+        }
+    }
+
+    return 0;
+}
+
+int hdlc_decode_recived_raw_data(struct Client* client, uint8_t* buffer, size_t len_buffer, uint8_t* recived_data, size_t* len_recived_data){
+    hdlc_control_t recv_control;
+    uint8_t recive[len_buffer];
+
+    int ret = hdlc_get_data_with_state(&client->current_state_hdlc,&recv_control, buffer, len_buffer, recive,
+                            &len_buffer);
+
+    if (ret < 0) {
+        return ret;
+    }
+
+    if (recv_control.seq_no != client->current_index_frame){
+        client->state = DISCONNECTING;
+        client->frame_rej.seq_no = 0;
+        client->frame_rej.frame = S_FRAME_NACK;
+        return ERR_INVALID_SEQ_NUMBER_FRAME;
+    }
+
+    switch (recv_control.frame) {
+        case S_FRAME:
+            client->state = READY_STATE;
+            break;
+        case I_FRAME:
+            for (int i = 0; i < sizeof(recive)-2; i++){
+                recived_data[i] = recive[i];
+            }
+
+            *len_recived_data = sizeof(recive)-2;
+
+            client->state = SEND;
+            break;
+        case S_FRAME_NACK:
+            client->state = DISCONNECTING;
+            client->frame_rej.seq_no = 0;
+            client->frame_rej.frame = S_FRAME_NACK;
+            return ERR_INVALID_SEQ_NUMBER_FRAME;
+    }
+
+    client->connecting_frame_timeout = connecting_frame_timeout_bf;
+    return 0;
+}
+
+int hdlc_timeout_handler(struct Client* client, int delta_time){
+    client->connecting_frame_timeout -= delta_time;
+
+    if (client->connecting_frame_timeout <= 0){
+        return ERR_FRAME_TIME_OUT;
+    }
+    return 0;
+}

hdlc/client.h

@@ -0,0 +1,49 @@
+#ifndef CLIENT_H
+#define CLIENT_H
+
+#include <stdint.h>
+#include <stdbool.h>
+#include "hdlc.h"
+
+#define ERR_INVALID_DATA_SIZE -1
+#define ERR_ALL_BUFFERS_FILL -2
+#define ERR_INVALID_PARAMS -3
+#define ERR_INVALID_STATE -4
+#define ERR_FRAME_TIME_OUT -5
+#define ERR_INVALID_SEQ_NUMBER_FRAME -6
+#define ERR_TIMEOUT_ANSWER -7
+
+enum HDLCState {
+    UNINITIALIZED_STATE = 0,  // состояние до инцилизации
+    IDLE_STATE, // Состояние ожидания начала
+    READY_STATE, // Состояние принятия
+    CONNECTING, // состояние соединения
+    DISCONNECTING, // состояния отключения
+    RECIVING, // состояние приема и отправки
+    SEND, //данные отправлены
+};
+
+struct Client{
+    enum HDLCState state;
+    int connecting_frame_timeout; //-1
+    uint8_t current_index_frame;
+    hdlc_state_t current_state_hdlc;
+    hdlc_control_t frameS;
+    hdlc_control_t frameI;
+    uint8_t* data_i_frame;
+    size_t len_data_i_frame;
+//    hdlc_control_t frame3;
+//    hdlc_control_t frame4;
+    hdlc_control_t frame_rej;
+};
+
+//название функций
+void init_hdlc_client(struct Client* client, int connecting_frame_timeout);
+void hdlc_connect(struct Client* client);
+int hdlc_send_data(struct Client* client, uint8_t data[], size_t data_len);
+int hdlc_get_raw_frame(struct Client *client, uint8_t* buffer, size_t lenBuffer);
+//принимает буффер с уарта
+int hdlc_decode_recived_raw_data(struct Client* client, uint8_t* buffer, size_t len_buffer, uint8_t* recived_data, size_t* len_recived_data);
+int hdlc_timeout_handler(struct Client* client, int delta_time);
+
+#endif //CLIENT_H

hdlc/fcs.c

@@ -0,0 +1,41 @@
+#include "fcs.h"
+
+/*
+ *    CRC-Type:     CRC16 CCIT
+ *    Polynomial:   0x1021 (x^16+x^12+x^5+1)
+ *    Lookup Table: Reflected
+ */
+static const unsigned short fcstab[256] = {
+        0x0000, 0x1189, 0x2312, 0x329b,
+        0x4624, 0x57ad, 0x6536, 0x74bf, 0x8c48, 0x9dc1, 0xaf5a, 0xbed3, 0xca6c,
+        0xdbe5, 0xe97e, 0xf8f7, 0x1081, 0x0108, 0x3393, 0x221a, 0x56a5, 0x472c,
+        0x75b7, 0x643e, 0x9cc9, 0x8d40, 0xbfdb, 0xae52, 0xdaed, 0xcb64, 0xf9ff,
+        0xe876, 0x2102, 0x308b, 0x0210, 0x1399, 0x6726, 0x76af, 0x4434, 0x55bd,
+        0xad4a, 0xbcc3, 0x8e58, 0x9fd1, 0xeb6e, 0xfae7, 0xc87c, 0xd9f5, 0x3183,
+        0x200a, 0x1291, 0x0318, 0x77a7, 0x662e, 0x54b5, 0x453c, 0xbdcb, 0xac42,
+        0x9ed9, 0x8f50, 0xfbef, 0xea66, 0xd8fd, 0xc974, 0x4204, 0x538d, 0x6116,
+        0x709f, 0x0420, 0x15a9, 0x2732, 0x36bb, 0xce4c, 0xdfc5, 0xed5e, 0xfcd7,
+        0x8868, 0x99e1, 0xab7a, 0xbaf3, 0x5285, 0x430c, 0x7197, 0x601e, 0x14a1,
+        0x0528, 0x37b3, 0x263a, 0xdecd, 0xcf44, 0xfddf, 0xec56, 0x98e9, 0x8960,
+        0xbbfb, 0xaa72, 0x6306, 0x728f, 0x4014, 0x519d, 0x2522, 0x34ab, 0x0630,
+        0x17b9, 0xef4e, 0xfec7, 0xcc5c, 0xddd5, 0xa96a, 0xb8e3, 0x8a78, 0x9bf1,
+        0x7387, 0x620e, 0x5095, 0x411c, 0x35a3, 0x242a, 0x16b1, 0x0738, 0xffcf,
+        0xee46, 0xdcdd, 0xcd54, 0xb9eb, 0xa862, 0x9af9, 0x8b70, 0x8408, 0x9581,
+        0xa71a, 0xb693, 0xc22c, 0xd3a5, 0xe13e, 0xf0b7, 0x0840, 0x19c9, 0x2b52,
+        0x3adb, 0x4e64, 0x5fed, 0x6d76, 0x7cff, 0x9489, 0x8500, 0xb79b, 0xa612,
+        0xd2ad, 0xc324, 0xf1bf, 0xe036, 0x18c1, 0x0948, 0x3bd3, 0x2a5a, 0x5ee5,
+        0x4f6c, 0x7df7, 0x6c7e, 0xa50a, 0xb483, 0x8618, 0x9791, 0xe32e, 0xf2a7,
+        0xc03c, 0xd1b5, 0x2942, 0x38cb, 0x0a50, 0x1bd9, 0x6f66, 0x7eef, 0x4c74,
+        0x5dfd, 0xb58b, 0xa402, 0x9699, 0x8710, 0xf3af, 0xe226, 0xd0bd, 0xc134,
+        0x39c3, 0x284a, 0x1ad1, 0x0b58, 0x7fe7, 0x6e6e, 0x5cf5, 0x4d7c, 0xc60c,
+        0xd785, 0xe51e, 0xf497, 0x8028, 0x91a1, 0xa33a, 0xb2b3, 0x4a44, 0x5bcd,
+        0x6956, 0x78df, 0x0c60, 0x1de9, 0x2f72, 0x3efb, 0xd68d, 0xc704, 0xf59f,
+        0xe416, 0x90a9, 0x8120, 0xb3bb, 0xa232, 0x5ac5, 0x4b4c, 0x79d7, 0x685e,
+        0x1ce1, 0x0d68, 0x3ff3, 0x2e7a, 0xe70e, 0xf687, 0xc41c, 0xd595, 0xa12a,
+        0xb0a3, 0x8238, 0x93b1, 0x6b46, 0x7acf, 0x4854, 0x59dd, 0x2d62, 0x3ceb,
+        0x0e70, 0x1ff9, 0xf78f, 0xe606, 0xd49d, 0xc514, 0xb1ab, 0xa022, 0x92b9,
+        0x8330, 0x7bc7, 0x6a4e, 0x58d5, 0x495c, 0x3de3, 0x2c6a, 0x1ef1, 0x0f78 };
+
+FCS_SIZE calc_fcs(FCS_SIZE fcs, unsigned char value) {
+    return (fcs >> 8) ^ fcstab[(fcs ^ value) & 0xff];
+}

hdlc/fcs.h

@@ -0,0 +1,18 @@
+#ifndef FCS_H
+#define FCS_H
+
+#define FCS_INIT_VALUE 0xFFFF /* FCS initialization value. */
+#define FCS_GOOD_VALUE 0xF0B8 /* FCS value for valid frames. */
+#define FCS_INVERT_MASK 0xFFFF /* Invert the FCS value accordingly to the specification */
+#define FCS_SIZE unsigned short
+
+/**
+ * Calculates a new FCS based on the current value and value of data.
+ *
+ * @param fcs Current FCS value
+ * @param value The value to be added
+ * @returns Calculated FCS value
+ */
+FCS_SIZE calc_fcs(FCS_SIZE fcs, unsigned char value);
+
+#endif

hdlc/hdlc.c

@@ -0,0 +1,262 @@
+#include "hdlc.h"
+
+// HDLC Control field bit positions
+#define HDLC_CONTROL_S_OR_U_FRAME_BIT 0
+#define HDLC_CONTROL_SEND_SEQ_NO_BIT 1
+#define HDLC_CONTROL_S_FRAME_TYPE_BIT 2
+#define HDLC_CONTROL_POLL_BIT 4
+#define HDLC_CONTROL_RECV_SEQ_NO_BIT 5
+
+// HDLC Control type definitions
+#define HDLC_CONTROL_TYPE_RECEIVE_READY 0
+#define HDLC_CONTROL_TYPE_RECEIVE_NOT_READY 1
+#define HDLC_CONTROL_TYPE_REJECT 2
+#define HDLC_CONTROL_TYPE_SELECTIVE_REJECT 3
+
+static hdlc_state_t hdlc_state = {
+        .control_escape = 0,
+        .fcs = FCS_INIT_VALUE,
+        .start_index = -1,
+        .end_index = -1,
+        .src_index = 0,
+        .dest_index = 0,
+};
+
+int hdlc_set_state(hdlc_state_t *state) {
+    if (!state) {
+        return -EINVAL;
+    }
+
+    hdlc_state = *state;
+    return 0;
+}
+
+
+int hdlc_get_state(hdlc_state_t *state) {
+    if (!state) {
+        return -EINVAL;
+    }
+
+    *state = hdlc_state;
+    return 0;
+}
+
+void hdlc_escape_value(char value, char *dest, int *dest_index) {
+    // Check and escape the value if needed
+    if ((value == HDLC_FLAG_SEQUENCE) || (value == HDLC_CONTROL_ESCAPE)) {
+        dest[(*dest_index)++] = HDLC_CONTROL_ESCAPE;
+        value ^= 0x20;
+    }
+
+    // Add the value to the destination buffer and increment destination index
+    dest[(*dest_index)++] = value;
+}
+
+hdlc_control_t hdlc_get_control_type(unsigned char control) {
+    hdlc_control_t value;
+
+    // Check if the frame is a S-frame (or U-frame)
+    if (control & (1 << HDLC_CONTROL_S_OR_U_FRAME_BIT)) {
+        // Check if S-frame type is a Receive Ready (ACK)
+        if (((control >> HDLC_CONTROL_S_FRAME_TYPE_BIT) & 0x3)
+            == HDLC_CONTROL_TYPE_RECEIVE_READY) {
+            value.frame = S_FRAME;
+        } else {
+            // Assume it is an NACK since Receive Not Ready, Selective Reject and U-frames are not supported
+            value.frame = S_FRAME_NACK;
+        }
+
+        // Add the receive sequence number from the S-frame (or U-frame)
+        value.seq_no = (control >> HDLC_CONTROL_RECV_SEQ_NO_BIT);
+    } else {
+        // It must be an I-frame so add the send sequence number (receive sequence number is not used)
+        value.frame = I_FRAME;
+        value.seq_no = (control >> HDLC_CONTROL_SEND_SEQ_NO_BIT);
+    }
+
+    return value;
+}
+
+unsigned char hdlc_frame_control_type(hdlc_control_t *control) {
+    unsigned char value = 0;
+
+    switch (control->frame) {
+        case I_FRAME:
+            // Create the HDLC I-frame control byte with Poll bit set
+            value |= (control->seq_no << HDLC_CONTROL_SEND_SEQ_NO_BIT);
+            value |= (1 << HDLC_CONTROL_POLL_BIT);
+            break;
+        case S_FRAME:
+            // Create the HDLC Receive Ready S-frame control byte with Poll bit cleared
+            value |= (control->seq_no << HDLC_CONTROL_RECV_SEQ_NO_BIT);
+            value |= (1 << HDLC_CONTROL_S_OR_U_FRAME_BIT);
+            break;
+        case S_FRAME_NACK:
+            // Create the HDLC Receive Ready S-frame control byte with Poll bit cleared
+            value |= (control->seq_no << HDLC_CONTROL_RECV_SEQ_NO_BIT);
+            value |= (HDLC_CONTROL_TYPE_REJECT << HDLC_CONTROL_S_FRAME_TYPE_BIT);
+            value |= (1 << HDLC_CONTROL_S_OR_U_FRAME_BIT);
+            break;
+    }
+
+    return value;
+}
+
+void hdlc_get_data_reset() {
+    hdlc_get_data_reset_with_state(&hdlc_state);
+}
+
+void hdlc_get_data_reset_with_state(hdlc_state_t *state) {
+    state->fcs = FCS_INIT_VALUE;
+    state->start_index = state->end_index = -1;
+    state->src_index = state->dest_index = 0;
+    state->control_escape = 0;
+}
+
+//int hdlc_get_data(hdlc_control_t *control, const char *src,
+//                    unsigned int src_len, char *dest, unsigned int *dest_len)
+int hdlc_get_data(hdlc_control_t *control, uint8_t *src,
+                  size_t src_len, uint8_t *dest, size_t *dest_len){
+    return hdlc_get_data_with_state(&hdlc_state, control, src, src_len, dest, dest_len);
+}
+
+//int hdlc_get_data_with_state(hdlc_state_t *state, hdlc_control_t *control, const char *src,
+//                               unsigned int src_len, char *dest, unsigned int *dest_len)
+int
+hdlc_get_data_with_state(hdlc_state_t *state, hdlc_control_t *control, uint8_t *src,
+                             size_t src_len, uint8_t *dest, size_t *dest_len){
+    int ret;
+    char value;
+    unsigned int i;
+
+    // Make sure that all parameters are valid
+    if (!state || !control || !src || !dest || !dest_len) {
+        return -EINVAL;
+    }
+
+    // Run through the data bytes
+    for (i = 0; i < src_len; i++) {
+        // First find the start flag sequence
+        if (state->start_index < 0) {
+            if (src[i] == HDLC_FLAG_SEQUENCE) {
+                // Check if an additional flag sequence byte is present
+                if ((i < (src_len - 1)) && (src[i + 1] == HDLC_FLAG_SEQUENCE)) {
+                    // Just loop again to silently discard it (accordingly to HDLC)
+                    continue;
+                }
+
+                state->start_index = state->src_index;
+            }
+        } else {
+            // Check for end flag sequence
+            if (src[i] == HDLC_FLAG_SEQUENCE) {
+                // Check if an additional flag sequence byte is present or earlier received
+                if (((i < (src_len - 1)) && (src[i + 1] == HDLC_FLAG_SEQUENCE))
+                    || ((state->start_index + 1) == state->src_index)) {
+                    // Just loop again to silently discard it (accordingly to HDLC)
+                    continue;
+                }
+
+                state->end_index = state->src_index;
+                break;
+            } else if (src[i] == HDLC_CONTROL_ESCAPE) {
+                state->control_escape = 1;
+            } else {
+                // Update the value based on any control escape received
+                if (state->control_escape) {
+                    state->control_escape = 0;
+                    value = src[i] ^ 0x20;
+                } else {
+                    value = src[i];
+                }
+
+                // Now update the FCS value
+                state->fcs = calc_fcs(state->fcs, value);
+
+                if (state->src_index == state->start_index + 2) {
+                    // Control field is the second byte after the start flag sequence
+                    *control = hdlc_get_control_type(value);
+                } else if (state->src_index > (state->start_index + 2)) {
+                    // Start adding the data values after the Control field to the buffer
+                    dest[state->dest_index++] = value;
+                }
+            }
+        }
+        state->src_index++;
+    }
+
+    // Check for invalid frame (no start or end flag sequence)
+    if ((state->start_index < 0) || (state->end_index < 0)) {
+        // Return no message and make sure destination length is 0
+        *dest_len = 0;
+        ret = -ENOMSG;
+    } else {
+        // A frame is at least 4 bytes in size and has a valid FCS value
+        if ((state->end_index < (state->start_index + 4))
+            || (state->fcs != FCS_GOOD_VALUE)) {
+            // Return FCS error and indicate that data up to end flag sequence in buffer should be discarded
+            *dest_len = i;
+            ret = -EIO;
+        } else {
+            // Return success and indicate that data up to end flag sequence in buffer should be discarded
+            *dest_len = state->dest_index - sizeof(state->fcs);
+            ret = i;
+        }
+
+        // Reset values for next frame
+        hdlc_get_data_reset_with_state(state);
+    }
+
+    return ret;
+}
+
+//int hdlc_frame_data(hdlc_control_t *control, const char *src,
+//                      unsigned int src_len, char *dest, unsigned int *dest_len)
+int hdlc_frame_data(hdlc_control_t *control, uint8_t *src,
+                    size_t src_len, uint8_t *dest, size_t *dest_len){
+    unsigned int i;
+    int dest_index = 0;
+    unsigned char value = 0;
+    FCS_SIZE fcs = FCS_INIT_VALUE;
+
+    // Make sure that all parameters are valid
+    if (!control || (!src && (src_len > 0)) || !dest || !dest_len) {
+        return -EINVAL;
+    }
+
+    // Start by adding the start flag sequence
+    dest[dest_index++] = HDLC_FLAG_SEQUENCE;
+
+    // Add the all-station address from HDLC (broadcast)
+    fcs = calc_fcs(fcs, HDLC_ALL_STATION_ADDR);
+    hdlc_escape_value(HDLC_ALL_STATION_ADDR, dest, &dest_index);
+
+    // Add the framed control field value
+    value = hdlc_frame_control_type(control);
+    fcs = calc_fcs(fcs, value);
+    hdlc_escape_value(value, dest, &dest_index);
+
+    // Only DATA frames should contain data
+    if (control->frame == I_FRAME) {
+        // Calculate FCS and escape data
+        for (i = 0; i < src_len; i++) {
+            fcs = calc_fcs(fcs, src[i]);
+            hdlc_escape_value(src[i], dest, &dest_index);
+        }
+    }
+
+    // Invert the FCS value accordingly to the specification
+    fcs ^= FCS_INVERT_MASK;
+
+    // Run through the FCS bytes and escape the values
+    for (i = 0; i < sizeof(fcs); i++) {
+        value = ((fcs >> (8 * i)) & 0xFF);
+        hdlc_escape_value(value, dest, &dest_index);
+    }
+
+    // Add end flag sequence and update length of frame
+    dest[dest_index++] = HDLC_FLAG_SEQUENCE;
+    *dest_len = dest_index;
+
+    return 0;
+}

hdlc/hdlc.h

@@ -0,0 +1,108 @@
+//
+// Created by 79513 on 15.12.2023.
+//
+
+#ifndef HDLC_H
+#define HDLC_H
+
+#include "fcs.h"
+#include <errno.h>
+#include "stdint.h"
+
+/** HDLC start/end flag sequence */
+#define HDLC_FLAG_SEQUENCE 0x7E
+
+/** HDLC control escape value */
+#define HDLC_CONTROL_ESCAPE 0x7D
+
+/** HDLC all station address */
+#define HDLC_ALL_STATION_ADDR 0xFF
+
+/** Supported HDLC frame types */
+typedef enum {
+    I_FRAME,
+    S_FRAME,
+    S_FRAME_NACK,
+} hdlc_frame_t;
+
+/** Control field information */
+typedef struct {
+    hdlc_frame_t frame;
+    unsigned char seq_no :3;
+} hdlc_control_t;
+
+/** Variables used in hdlc_get_data and hdlc_get_data_with_state
+ * to keep track of received buffers
+ */
+typedef struct {
+    char control_escape;
+    FCS_SIZE fcs;
+    int start_index;
+    int end_index;
+    int src_index;
+    int dest_index;
+} hdlc_state_t;
+
+/**
+ * Retrieves data from specified buffer containing the HDLC frame. Frames can be
+ * parsed from multiple buffers e.g. when received via UART.
+ *
+ * @param[out] control Control field structure with frame type and sequence number
+ * @param[in] src Source buffer with frame
+ * @param[in] src_len Source buffer length
+ * @param[out] dest Destination buffer (should be able to contain max frame size)
+ * @param[out] dest_len Destination buffer length
+ * @retval >=0 Success (size of returned value should be discarded from source buffer)
+ * @retval -EINVAL Invalid parameter
+ * @retval -ENOMSG Invalid message
+ * @retval -EIO Invalid FCS (size of dest_len should be discarded from source buffer)
+ *
+ * @see hdlc_get_data_with_state
+ */
+int hdlc_get_data(hdlc_control_t *control, uint8_t *src,
+                    size_t src_len, uint8_t *dest, size_t *dest_len);
+
+/**
+ * Retrieves data from specified buffer containing the HDLC frame. Frames can be
+ * parsed from multiple buffers e.g. when received via UART.
+ *
+ * This function is a variation of @ref hdlc_get_data
+ * The difference is only in first argument: hdlc_state_t *state
+ * Data under that pointer is used to keep track of internal buffers.
+ *
+ * @see hdlc_get_data
+ */
+int hdlc_get_data_with_state(hdlc_state_t *state, hdlc_control_t *control, uint8_t *src,
+                             size_t src_len, uint8_t *dest, size_t *dest_len);
+
+/**
+ * Resets values used in yahdlc_get_data function to keep track of received buffers
+ */
+void hdlc_get_data_reset();
+
+/**
+ * This is a variation of @ref hdlc_get_data_reset
+ * Resets state values that are under the pointer provided as argument
+ *
+ * This function need to be called before the first call to hdlc_get_data_with_state
+ * when custom state storage is used.
+ *
+ * @see hdlc_get_data_reset
+ */
+void hdlc_get_data_reset_with_state(hdlc_state_t *state);
+
+/**
+ * Creates HDLC frame with specified data buffer.
+ *
+ * @param[in] control Control field structure with frame type and sequence number
+ * @param[in] src Source buffer with data
+ * @param[in] src_len Source buffer length
+ * @param[out] dest Destination buffer (should be bigger than source buffer)
+ * @param[out] dest_len Destination buffer length
+ * @retval 0 Success
+ * @retval -EINVAL Invalid parameter
+ */
+int hdlc_frame_data(hdlc_control_t *control, uint8_t *src,
+                      size_t src_len, uint8_t *dest, size_t *dest_len);
+
+#endif //HDLC_H

hdlc/main.c

@@ -0,0 +1,181 @@
+//#include "hdlc.h"
+#include "stdio.h"
+#include "client.h"
+
+int main(){
+    struct Client hdlc;
+    init_hdlc_client(&hdlc, 200);
+    hdlc_connect(&hdlc);
+    uint8_t buffer_for_ex[20];
+    uint8_t fake_buffer;
+    hdlc_get_raw_frame(&hdlc, buffer_for_ex, sizeof(buffer_for_ex));
+
+    for (int i = 0; i < 200; i++){
+        int z = hdlc_timeout_handler(&hdlc, 1);
+        hdlc_decode_recived_raw_data(&hdlc, &fake_buffer, sizeof(fake_buffer), 0, 0);
+    }
+
+    hdlc_get_raw_frame(&hdlc, buffer_for_ex, sizeof(buffer_for_ex));
+    int i = hdlc_decode_recived_raw_data(&hdlc, buffer_for_ex, sizeof(buffer_for_ex), 0, 0);
+    if (i < 0){
+        printf("err connect: %d\n", i);
+    }
+
+    uint8_t data[] = {32, 233, 132, 102, 12, 12, 44, 121, 34};
+    hdlc_send_data(&hdlc, data, sizeof(data));
+    uint8_t buffer_for_ex_data[20];
+
+    hdlc_get_raw_frame(&hdlc, buffer_for_ex_data, 20);
+
+    //printf("first_ex:%d\n", buffer_for_ex_data[0]);
+    uint8_t recivedData[] = {};
+    size_t len_recived_data = 0;
+    int x = hdlc_decode_recived_raw_data(&hdlc, buffer_for_ex_data, 20, recivedData, &len_recived_data);
+    if (x < 0){
+        printf("err send: %d\n", x);
+    }
+    printf("recived data: %d\n", recivedData[1]);
+
+
+
+
+//    uint8_t send[64];
+//    uint8_t buffer[134];
+//    for (int i = 0; i < sizeof(send); i++) {
+//        send[i] = (uint8_t) (rand() % 0x70);
+//    }
+//    send_data(&hdlc, send, sizeof(send_data));
+//    //get_frame(&hdlc, buffer, sizeof(buffer), send_data, sizeof(send_data));
+//
+//    hdlc_get_raw_data(&hdlc, buffer, sizeof(buffer));
+
+    // test 1
+
+//    int ret;
+//    uint8_t frame_data[8], recv_data[8];
+//    size_t i, frame_length = 0, recv_length = 0;
+//    hdlc_control_t control_send, control_recv;
+
+//    // Run through the supported sequence numbers (3-bit)
+//    for (i = 0; i <= 7; i++) {
+//        // Initialize the control field structure with frame type and sequence number
+//        control_send.frame = HDLC_FRAME_ACK;
+//        control_send.seq_no = i;
+//
+//        // Create an empty frame with the control field information
+//        ret = hdlc_frame_data(&control_send, NULL, 0, frame_data, &frame_length);
+//
+//        // Get the data from the frame
+//        ret = hdlc_get_data(&control_recv, frame_data, frame_length, recv_data,
+//                              &recv_length);
+//
+//        // Result should be frame_length minus start flag to be discarded and no bytes received
+//        if(ret != (int )frame_length - 1){
+//            printf("err");
+//        }
+//    }
+//    if (recv_length != 0){
+//        printf("err2");
+//    }
+//
+//    if (control_send.frame != control_recv.frame){
+//        printf("err3");
+//    }
+//
+//    if (control_send.seq_no != control_recv.seq_no){
+//        printf("err4");
+//    }
+
+    // test 2
+
+    // Run through the supported sequence numbers (3-bit)
+//    for (i = 0; i <= 7; i++) {
+//        // Initialize the control field structure with frame type and sequence number
+//        control_send.frame = HDLC_FRAME_DATA;
+//        control_send.seq_no = i;
+//
+//        char* input = "311";
+//        uint8_t data = (uint8_t)atoi(input);
+//
+//        // Create an empty frame with the control field information
+//        ret = hdlc_frame_data(&control_send, &data, 3, frame_data, &frame_length);
+//        if (ret != 0){
+//            printf("err123\n");
+//        }
+//
+//        // Get the data from the frame
+//        ret = hdlc_get_data(&control_recv, frame_data, frame_length, recv_data,
+//                            &recv_length);
+//
+//        // Result should be frame_length minus start flag to be discarded and no bytes received
+//        if(ret != (int )frame_length - 1){
+//            printf("err333\n");
+//        }
+//        if (recv_length != 0){
+//            printf("err2\n");
+//        }
+//
+//        // Verify the control field information
+//        if (control_send.frame != control_recv.frame){
+//            printf("err3\n");
+//        }
+//
+//        if (control_send.seq_no != control_recv.seq_no){
+//            printf("err4\n");
+//        }
+//    }
+
+//    int ret;
+//    hdlc_control_t control;
+//    uint8_t send_data[512], frame_data[530], recv_data[530];
+//    size_t i, frame_length = 0, recv_length = 0, buf_length = 16;
+//
+//    // Initialize data to be send with random values (up to 0x70 to keep below the values to be escaped)
+//    for (i = 0; i < sizeof(send_data); i++) {
+//        send_data[i] = (uint8_t) (rand() % 0x70);
+//    }
+//
+//    // Initialize control field structure and create frame
+//    control.frame = HDLC_FRAME_DATA;
+//    ret = hdlc_frame_data(&control, send_data, sizeof(send_data), frame_data,
+//                            &frame_length);
+//
+//    // Check that frame length is maximum 2 bytes larger than data due to escape of FCS value
+//    if(frame_length >= ((sizeof(send_data) + 6) + 2)){
+//        printf("1");
+//    }
+//    if(ret != 0){
+//        printf("2");
+//    }
+//
+//    // Run though the different buffers (simulating decode of buffers from UART)
+//    for (i = 0; i <= sizeof(send_data); i += buf_length) {
+//        // Decode the data
+//        ret = hdlc_get_data(&control, &frame_data[i], buf_length, recv_data,
+//                              &recv_length);
+//
+//        printf("%zu: %s\n", i, recv_data);
+//
+//        if (i < sizeof(send_data)) {
+//            // All chunks until the last should return no message and zero length
+//            if (ret != -ENOMSG){
+//                printf("3");
+//            }
+//            if (recv_length != 0){
+//                printf("1231");
+//            }
+//        } else {
+//            if (ret > 7){
+//                printf("332");
+//            }
+//            if (recv_length != sizeof(send_data)){
+//                printf("88888");
+//            }
+//            // The last chunk should return max 6 frame bytes - 1 start flag sequence byte + 2 byte for the possible
+//            // escaped FCS = 7 bytes
+////            BOOST_CHECK(ret <= 7);
+////            BOOST_CHECK_EQUAL(recv_length, sizeof(send_data));
+//            //printf("5");
+//        }
+//    }
+}

main.c

@@ -0,0 +1,110 @@
+//#include "Lсd_print/lcd.h"
+#include "hdlc/client.h"
+#include "UART/uart.h"
+#include "stdbool.h"
+//#include "stdio.h"
+#include "Lсd_print/lcd.h"
+//#include "protocol.h"
+
+int main() {
+    struct Client hdlc;
+    bool flag_connection = false;
+
+    Lcd_inciliation();
+    UART_init();
+    init_hdlc_client(&hdlc, 200);
+
+//    while(true){
+//        if (!flag_connection){
+//        }
+//    }
+
+    hdlc_connect(&hdlc);
+    uint8_t buffer[10];
+
+    hdlc_get_raw_frame(&hdlc, buffer, sizeof buffer);
+
+    UART_send(buffer, sizeof buffer);
+
+    while(!flag_connection){
+        uint8_t* buffer_recive[10];
+        UART_receive(buffer_recive, sizeof buffer_recive);
+
+        int err = hdlc_timeout_handler(&hdlc, 1);
+        if (err == ERR_FRAME_TIME_OUT){
+            hdlc_get_raw_frame(&hdlc, buffer, sizeof buffer);
+            UART_send(buffer, sizeof buffer);
+            continue;
+        }
+
+        err = hdlc_decode_recived_raw_data(&hdlc, buffer_recive, sizeof buffer_recive, 0, 0);
+        if (err < 0){
+            if (err == ERR_INVALID_SEQ_NUMBER_FRAME){
+                uint8_t* buffer_rej[10];
+                hdlc_get_raw_frame(&hdlc, buffer_rej, sizeof buffer_rej);
+                UART_send(buffer_rej, sizeof buffer_rej);
+                return err;
+            }
+            return err;
+        }
+
+        if (hdlc.state == READY_STATE){
+            flag_connection = true;
+        }
+    }
+
+    struct message mess;
+    mess.numbers[0] = 1.23;
+    mess.numbers[1] = 22.1;
+    mess.numbers[2] = 100;
+    mess.len_numbers = 3;
+    mess.str = "word war in new world io ex";
+    mess.len_str = sizeof mess.str;
+
+    uint8_t data[64];
+    size_t len_data;
+    protocol_encode(mess, data, &len_data);
+
+    hdlc_send_data(&hdlc, data, len_data);
+    uint8_t buffer_data[72];
+    hdlc_get_raw_frame(&hdlc, buffer_data, sizeof buffer_data);
+
+    UART_send(buffer_data, sizeof buffer_data);
+
+    bool flag_recive = false;
+    uint8_t data_recive[64];
+    size_t len_data_recive;
+    while (!flag_recive){
+        uint8_t* buffer_recive_data[72];
+        UART_receive(buffer_recive_data, sizeof buffer_recive_data);
+
+        int err = hdlc_timeout_handler(&hdlc, 1);
+        if (err == ERR_FRAME_TIME_OUT){
+            hdlc_get_raw_frame(&hdlc, buffer_data, sizeof buffer_data);
+            UART_send(buffer_data, sizeof buffer_data);
+            continue;
+        }
+
+        err = hdlc_decode_recived_raw_data(&hdlc, buffer_recive_data, sizeof buffer_recive_data, data_recive, &len_data_recive);
+        if (err < 0){
+            if (err == ERR_INVALID_SEQ_NUMBER_FRAME){
+                uint8_t* buffer_rej[10];
+                hdlc_get_raw_frame(&hdlc, buffer_rej, sizeof buffer_rej);
+                UART_send(buffer_rej, sizeof buffer_rej);
+                return err;
+            }
+            return err;
+        }
+
+        if (hdlc.state == SEND){
+            flag_recive = true;
+        }
+    }
+
+    struct message resp;
+    protocol_decode(data_recive, len_data_recive, &resp);
+
+    printLcd(&resp);
+
+    return 0;
+}

protocol/main.c

@@ -0,0 +1,120 @@
+#include "protocol.h"
+#include "stdio.h"
+
+int main(){
+//    union convert_float sample;
+//    sample.fVal = 135;
+//    union convert_float sample2;
+//    for(int i = 0; i < sizeof sample.buf; i++){
+//        printf("buffer %d: %d\n", i, sample.buf[i]);
+//        sample2.buf[i] = sample.buf[i];
+//    }
+//
+//    printf("float: %f\n", sample2.fVal);
+
+//    union convert_char sample;
+//    sample.cVal = "world_word_z";
+//    union convert_char sample2;
+//    for(int i = 0; i < sizeof sample.buf; i++){
+//        printf("buffer %d: %d\n", i, sample.buf[i]);
+//        sample2.buf[i] = sample.buf[i];
+//    }
+//
+//    printf("char: %s\n", sample2.cVal);
+
+
+//    char a[64];
+//    float f = 3.14159;  // number to start with
+//
+//    snprintf(a, sizeof a, "%f", f);   // point a to f's location
+//
+//    float num = atof(a);
+//
+//    printf("%s\n", a);
+//    printf("%f", num);
+//
+//    // print float & byte array as hex
+//    printf("float: %f\n", f);
+//    printf("byte array: %hhX:%hhX:%hhX:%hhX\n", \
+//    a[0], a[1], a[2], a[3]);
+
+//    uint8_t num;
+//    sscanf(a, "%s", &num);
+//    float s = atof(a);
+//    printf("%f\n", s);
+
+//    float vIn = -1.07231;
+//    char *vOut[4];
+//    _gcvt_s(vOut,sizeof(vOut),vIn,9);
+//
+//    float vA = (float)strtod(vOut,NULL);
+//
+//    printf("\n%f", vA);
+
+    printf("Test number\n");
+    struct message messNum;
+    messNum.numbers[0] = 12.134;
+    messNum.numbers[1] = 135.123;
+    messNum.numbers[2] = 5214.12;
+    messNum.numbers[3] = 12345.12345;
+    messNum.len_str = 0;
+    messNum.len_numbers = 4;
+
+    uint8_t buffer_number[] = {};
+    size_t len_buffer_number;
+    protocol_encode(messNum, buffer_number, &len_buffer_number);
+    for (int i = 0; i < len_buffer_number; i++){
+        printf("buffer %d: %d\n", i, buffer_number[i]);
+    }
+
+    printf("---------------------------------------\n");
+
+    struct message respNum;
+    protocol_decode(buffer_number, len_buffer_number, &respNum);
+    for (int i = 0; i < 4; i++){
+        printf("number %d: %f\n", i, respNum.numbers[i]);
+    }
+
+    printf("\nTest word\n");
+    struct message messStr;
+    messStr.str = "word_war";
+    messStr.len_str = sizeof messStr.str;
+    messStr.len_numbers = 0;
+    uint8_t bufferStr[] = {};
+    size_t len_bufferStr;
+    protocol_encode(messStr, bufferStr, &len_bufferStr);
+    for (int i = 0; i < len_bufferStr; i++){
+        printf("buffer %d: %d\n", i, bufferStr[i]);
+    }
+
+    printf("---------------------------------------\n");
+
+    struct message respStr;
+    protocol_decode(bufferStr, len_bufferStr, &respStr);
+    printf("message: %s\n", respStr.str);
+
+    printf("\nTest number + word\n");
+
+    struct message mess;
+    mess.numbers[0] = 12.134;
+    mess.numbers[1] = 135.123;
+    mess.len_numbers = 2;
+    mess.str = "word_war_sas";
+    mess.len_str = sizeof mess.str;
+    uint8_t buffer[] = {};
+    size_t len_buffer;
+    protocol_encode(mess, buffer, &len_buffer);
+    for (int i = 0; i < len_buffer; i++){
+        printf("buffer %d: %d\n", i, buffer[i]);
+    }
+
+    printf("---------------------------------------\n");
+
+    struct message resp;
+    protocol_decode(buffer, len_buffer, &resp);
+    for (int i = 0; i < resp.len_numbers; i++){
+        printf("numbers %d: %f\n", i, resp.numbers[i]);
+    }
+    printf("message: %s\n", resp.str);
+
+}

protocol/protocol.c

@@ -0,0 +1,56 @@
+#include "protocol.h"
+
+void protocol_decode(uint8_t encode_message[], size_t len_encode_message, struct message* decode_message){
+    int count_number = 0;
+    for(int i = 0; i < len_encode_message; i++){
+        if (encode_message[i] == FLAG_NUMBER){
+            union convert_float sample;
+            for (int z = 0; z < sizeof sample.buf; z++){
+                i++;
+                sample.buf[z] = encode_message[i];
+            }
+            decode_message->numbers[count_number++] = sample.fVal;
+            decode_message->len_numbers++;
+        }
+
+
+        if (encode_message[i] == FLAG_WORD){
+            int count_word = 0;
+            i++;
+            union convert_char sample;
+            for (int z = 0; z < encode_message[i]; z++){
+                i++;
+                sample.buf[z] = encode_message[i];
+            }
+            decode_message->str = sample.cVal;
+            decode_message->len_str = count_word;
+        }
+    }
+    decode_message->len_numbers = count_number;
+}
+
+void protocol_encode(struct message message, uint8_t encode_message[], size_t* len_encode_message){
+    size_t count = 0;
+    if (message.len_numbers > 0){
+        for (int i = 0; i < message.len_numbers; i++){
+            encode_message[count++] = FLAG_NUMBER;
+            union convert_float sample;
+            sample.fVal = message.numbers[i];
+            for (int z = 0; z < sizeof sample.buf; z++){
+                encode_message[count++] = sample.buf[z];
+            }
+        }
+    }
+
+    if (message.len_str > 0){
+        encode_message[count++] = FLAG_WORD;
+        encode_message[count++] = message.len_str;
+        union convert_char sample;
+        sample.cVal = message.str;
+        for (int i = 0; i < message.len_str; i++){
+            encode_message[count++] = sample.buf[i];
+        }
+    }
+
+    *len_encode_message = count;
+}

protocol/protocol.h

@@ -0,0 +1,32 @@
+#ifndef PROTOCOL_H
+#define PROTOCOL_H
+
+#include <stdint.h>
+#include <string.h>
+#include <stdlib.h>
+#include "stdio.h"
+
+#define FLAG_NUMBER 0
+#define FLAG_WORD 1
+
+struct message{
+    float numbers[3];
+    size_t len_numbers;
+    char* str;
+    size_t len_str;
+};
+
+union convert_float{
+    float fVal;
+    uint8_t buf[4];
+};
+
+union convert_char{
+    char* cVal;
+    uint8_t buf[64];
+};
+
+void protocol_decode(uint8_t encode_message[], size_t len_encode_message, struct message* decode_message);
+void protocol_encode(struct message message, uint8_t encode_message[], size_t* len_encode_message);
+
+#endif //PROTOCOL_H