rework send frames and init client

Reviewed-on: #5

.gitignore

@@ -0,0 +1,9 @@
+hdlc1.c
+hdlc1.h
+hdlc_frame.c
+hdlc_frame.h
+main1.c
+uart.c
+uart.h
+
+!./hdlc

.idea/.gitignore

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

.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/untitled1.iml" filepath="$PROJECT_DIR$/.idea/untitled1.iml" />
+    </modules>
+  </component>
+</project>

.idea/vcs.xml

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

CMakeLists.txt

@@ -0,0 +1,6 @@
+cmake_minimum_required(VERSION 3.25)
+project(untitled1 C)
+
+set(CMAKE_C_STANDARD 11)
+
+add_executable(untitled1 hdlc/fcs.h hdlc/fcs.c hdlc/hdlc.h hdlc/hdlc.c hdlc/main.c hdlc/client.c)

Disp1602.cpp

@@ -1,87 +0,0 @@
-#include <Wire.h>
-
-#include <LiquidCrystal_I2C.h>
-
-LiquidCrystal_I2C lcd(0x27, 16, 2);
-
-struct DisplayData {
-  char topLine[64];
-  int value1;
-  int value2;
-  int value3;
-};
-
-struct TextCounter {
-  unsigned long startTime;
-  int incrementValue;
-};
-
-TextCounter textCounter;
-
-void setup() {
-  lcd.begin(16, 2);
-  textCounter.startTime = millis(); // Запоминаем время запуска программы
-}
-
-void loop() {
-  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
-  }
-
-  DisplayData displayData;
-  strncpy(displayData.topLine, "we are responsible for those who have been tame ", sizeof(displayData.topLine) - 1);
-  displayData.topLine[sizeof(displayData.topLine) - 1] = '\0';
-  displayData.value1 = 500;
-  displayData.value2 = 800;
-  displayData.value3 = 855;
-
-  // 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.setCursor(0, 0);
-  lcd.print(displayArray);
-
-  lcd.setCursor(0, 1);
-  lcd.print(displayArray + 16); // Вывод второй половины displayArray
-}
-
-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;
-
-  if (endIndex > strlen(source)) {
-    // Если endIndex превышает длину строки source, переносим его на начало строки
-    endIndex = endIndex - strlen(source);
-
-    // Копируем символы с конца строки source
-    strncpy(buffer, source + startIndex, strlen(source) - startIndex);
-
-    // Копируем оставшиеся символы с начала строки source
-    strncat(buffer, source, endIndex);
-  } else {
-    strncpy(buffer, source + startIndex, endIndex - startIndex);
-  }
-
-  buffer[endIndex - startIndex] = '\0'; // Установка нулевого символа в конце буфера
-}
-
-void fillBuffer2(int value1, int value2, int value3, char * buffer, size_t bufferSize) {
-  snprintf(buffer, bufferSize, "%d.%d.%d", value1, value2, value3);
-}

display_functions.c

@@ -1,64 +0,0 @@
-#include "display_functions.h"
-#include <Wire.h>
-
-#define LCD_ADDRESS 0x27 // Адрес дисплея на шине I2C
-#define LCD_WIDTH 16     // Ширина дисплея в символах
-#define LCD_HEIGHT 2     // Высота дисплея в строках
-
-void lcd_send_command(uint8_t command) {
-    Wire.beginTransmission(LCD_ADDRESS);
-    i2c_send_byte(0x80); // Co = 0, Rs = 0 (управляющий байт)
-    i2c_send_byte(command);
-    Wire.endTransmission();
-}
-
-void lcd_send_data(uint8_t data) {
-    Wire.beginTransmission(LCD_ADDRESS);
-    i2c_send_byte(0xC0); // Co = 0, Rs = 1 (байт данных)
-    i2c_send_byte(data);
-    Wire.endTransmission();
-}
-
-void lcd_send_string(const char *str) {
-    while (*str) {
-        lcd_send_data(*str);
-        str++;
-    }
-}
-
-void lcd_clear() {
-    lcd_send_command(0x01); // Очистка дисплея
-    _delay_ms(2); // Небольшая пауза для завершения очистки
-}
-
-void lcd_init() {
-    Wire.begin();
-    lcd_send_command(0x38); // Установка интерфейса: 8 бит данных, 2 строки, 5x8 точек
-    lcd_send_command(0x08); // Отключение дисплея, курсора и мигания курсора
-    lcd_send_command(0x01); // Очистка дисплея
-    _delay_ms(2); // Небольшая пауза для завершения очистки
-    lcd_send_command(0x06); // Установка направления текста: курсор увеличивается, сдвиг дисплея
-    lcd_send_command(0x0C); // Включение дисплея без курсора и мигания курсора
-}
-
-void lcd_print_char(char c) {
-    lcd_send_data(c);
-}
-
-void lcd_print_string(const char *str) {
-    lcd_send_string(str);
-}
-
-void lcd_update(const DisplayData *displayData, const TextCounter *textCounter) {
-    lcd_clear(); // Очистка дисплея перед выводом новой информации
-
-    // Вывод данных на первую строку
-    lcd_send_command(0x80); // Установка курсора на начало первой строки
-    lcd_send_string(displayData->topLine);
-
-    // Вывод данных на вторую строку
-    lcd_send_command(0xC0); // Установка курсора на начало второй строки
-    char buffer[17];
-    snprintf(buffer, sizeof(buffer), "%d.%d.%d", displayData->value1, displayData->value2, displayData->value3);
-    lcd_send_string(buffer);
-}

display_functions.h

@@ -1,24 +0,0 @@
-#ifndef DISPLAY_FUNCTIONS_H
-#define DISPLAY_FUNCTIONS_H
-
-#include "i2c_functions.h"
-#include <stdint.h>
-
-struct DisplayData {
-  char topLine[64];
-  int value1;
-  int value2;
-  int value3;
-};
-
-struct TextCounter {
-  unsigned long startTime;
-  int incrementValue;
-};
-
-void lcd_init();
-void lcd_print_char(char c);
-void lcd_print_string(const char *str);
-void lcd_update(const DisplayData *displayData, const TextCounter *textCounter);
-
-#endif

hdlc/client.c

@@ -0,0 +1,147 @@
+#include "client.h"
+#include "hdlc.h"
+#include "stdio.h"
+
+#define CONNECT_FRAME_PERIOD 200
+#define SIZE_DATA_BUFFER 64
+#define COUNT_BUFFERS 4
+
+#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
+
+uint8_t buffer_data[COUNT_BUFFERS][SIZE_DATA_BUFFER];
+
+int init_hdlc_client(int count_buffers, int size_data_buffer, int connecting_frame_timeout, struct Client* client){
+    if (count_buffers <= 0){
+        return ERR_INVALID_PARAMS;
+    }
+
+    if (size_data_buffer <= 0){
+        return ERR_INVALID_PARAMS;
+    }
+
+    if (connecting_frame_timeout <= 0){
+        return ERR_INVALID_PARAMS;
+    }
+
+    client->state = IDLE_STATE;
+    client->connecting_frame_timeout = connecting_frame_timeout;
+    client->count_buffers = count_buffers;
+    client->size_data_buffer = size_data_buffer;
+    client->number_seq_frame = 0;
+
+    for (int i = 0; i < sizeof(buffer_data); i++){
+        for (int x = 0; x < sizeof(buffer_data[i]); x++){
+            buffer_data[i][x] = -1;
+        }
+    }
+    return 0;
+}
+
+void connect(struct Client* client){
+    client->state = CONNECTING;
+}
+
+int send_data(struct Client* client, uint8_t* data, size_t data_len){
+    if (client->state != READY_STATE){
+        return ERR_INVALID_STATE;
+    }
+
+    if (client->size_data_buffer < data_len){
+        return ERR_INVALID_DATA_SIZE;
+    }
+
+    for(int i = 0; i < COUNT_BUFFERS; i++){
+        if (buffer_data[i][0] == -1){
+            for (int x = 0; x < data_len; x++){
+                buffer_data[i][x] = data[x];
+            }
+        }
+
+        if (i == COUNT_BUFFERS - 1){
+            return ERR_ALL_BUFFERS_FILL;
+        }
+    }
+
+    client->state = RECIVING;
+};
+
+int get_frame(struct Client *client, uint8_t buffer[], size_t lenBuffer) {
+    hdlc_control_t control_send;
+
+    switch (client->state) {
+        case CONNECTING:
+            if (client->connecting_frame_timeout <= 0){
+                control_send.frame = S_FRAME;
+                control_send.seq_no = 1;
+                client->number_seq_frame = control_send.seq_no;
+
+                int ret = hdlc_frame_data(&control_send, NULL, 0, buffer, &lenBuffer);
+                if (ret < 0){
+                    printf("err in get_frame ACK: %d\n", ret);
+                }
+
+                client->connecting_frame_timeout = CONNECT_FRAME_PERIOD;
+            }
+            break;
+        case READY_STATE:
+            control_send.frame = I_FRAME;
+            control_send.seq_no = 1;
+            for(int i = 0; i < COUNT_BUFFERS; i++){
+                if (buffer_data[i][0] == -1){
+                    int ret = hdlc_frame_data(&control_send, buffer_data[i], SIZE_DATA_BUFFER, buffer, &lenBuffer);
+                    if (ret < 0){
+                        printf("err in get_frame DATA: %d\n", ret);
+                    }
+                }
+
+                if (i == COUNT_BUFFERS - 1){
+                    return ERR_ALL_BUFFERS_FILL;
+                }
+            }
+            break;
+    }
+
+//   Yf
+
+    return 0;
+}
+
+int hdlc_get_raw_data(struct Client* client, uint8_t buffer[], size_t len_buffer){
+    if (client->connecting_frame_timeout <= 0){
+        return ERR_FRAME_TIME_OUT;
+    }
+
+    hdlc_control_t recv_control;
+    uint8_t recive[len_buffer];
+
+    int ret = hdlc_get_data(&recv_control, buffer, len_buffer, recive,
+                            &len_buffer);
+    if (recv_control.seq_no != client->number_seq_frame){
+        return ERR_INVALID_SEQ_NUMBER_FRAME;
+    }
+
+    if (ret < 0 && client->connecting_frame_timeout < 0){
+        return ERR_TIMEOUT_ANSWER;
+    }
+
+    switch (recv_control.frame) {
+        case S_FRAME:
+            client->state = READY_STATE;
+            break;
+        case I_FRAME:
+            break;
+        case S_FRAME_NACK:
+            break;
+    }
+    return 0;
+}
+
+void hdlc_timeout_handler(struct Client* client, int delta_time){
+    client->connecting_frame_timeout -= delta_time;
+}

hdlc/client.h

@@ -0,0 +1,33 @@
+#ifndef CLIENT_H
+#define CLIENT_H
+
+#include <stdint.h>
+#include <stdbool.h>
+
+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
+};
+
+struct Client{
+    enum HDLCState state;
+    int connecting_frame_timeout; //-1
+    int size_data_buffer;
+    int count_buffers;
+    int number_seq_frame;
+};
+
+//название функций
+int init_hdlc_client(int count_buffers, int size_data_buffer, int connecting_frame_timeout, struct Client* client);
+void connect(struct Client* client);
+int send_data(struct Client* client, uint8_t* data, size_t data_len);
+int get_frame(struct Client *client, uint8_t buffer[], size_t lenBuffer);
+//принимает буффер с уарта
+int hdlc_get_raw_data(struct Client* client, uint8_t buffer[], size_t len_buffer);
+void 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 +1,261 @@
+#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 +1,126 @@
+//
+// 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;
+
+/**
+ * Set the hdlc state
+ *
+ * @param[in] state The new hdlc state to be used
+ * @retval 0 Success
+ * @retval -EINVAL Invalid parameter
+ */
+int hdlc_set_state(hdlc_state_t *state);
+
+/**
+ * Get current hdlc state
+ *
+ * @param[out] state Current hdlc state
+ * @retval 0 Success
+ * @retval -EINVAL Invalid parameter
+ */
+int hdlc_get_state(hdlc_state_t *state);
+
+/**
+ * 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 +1,164 @@
+//#include "hdlc.h"
+#include "stdio.h"
+#include "client.h"
+#include <stdlib.h>
+#include <inttypes.h>
+
+int main(){
+    struct Client hdlc;
+    init_hdlc_client(2, 64, 200, &hdlc);
+    connect(&hdlc);
+    uint8_t frame_data[8];
+    uint8_t buffer_for_ex[8];
+    get_frame(&hdlc, frame_data, sizeof(frame_data));
+
+    for (int i = 0; i < 200; i++){
+        hdlc_timeout_handler(&hdlc, 1);
+        hdlc_get_raw_data(&hdlc, buffer_for_ex, sizeof(buffer_for_ex));
+    }
+
+    get_frame(&hdlc, frame_data, sizeof(frame_data));
+    int i = hdlc_get_raw_data(&hdlc, frame_data, sizeof(frame_data));
+    printf("%d", i);
+
+
+//    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");
+//        }
+//    }
+}

i2c_functions.c

@@ -1,24 +0,0 @@
-#include "i2c_functions.h"
-#include <util/delay.h>
-
-// Здесь можно вставить код инициализации I2C, если требуется
-
-void i2c_delay() {
-    _delay_us(2);
-}
-
-void i2c_start() {
-    // Реализация отправки стартового условия I2C
-}
-
-void i2c_stop() {
-    // Реализация отправки стопового условия I2C
-}
-
-void i2c_send_byte(uint8_t data) {
-    // Реализация отправки одного байта данных по I2C
-}
-
-void i2c_send_bytes(const uint8_t *data, uint8_t length) {
-    // Реализация отправки массива данных (длиной length) по I2C
-}

i2c_functions.h

@@ -1,12 +0,0 @@
-#ifndef I2C_FUNCTIONS_H
-#define I2C_FUNCTIONS_H
-
-#include <stdint.h>
-
-void i2c_delay();
-void i2c_start();
-void i2c_stop();
-void i2c_send_byte(uint8_t data);
-void i2c_send_bytes(const uint8_t *data, uint8_t length);
-
-#endif

lcdpcf8574.cpp

@@ -1,316 +0,0 @@
-#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
-}

lcdpcf8574.h

@@ -1,110 +0,0 @@
-#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

main.c

@@ -1,53 +0,0 @@
-#include <avr/io.h>
-#include <util/delay.h>
-#include "display_functions.h"
-
-// Основной код вашего проекта
-
-int main() {
-    // Настройка портов и другие инициализации
-
-    lcd_init(); // Инициализация дисплея
-
-    // Ваш код в функции setup()
-
-    while (1) {
-        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
-        }
-        
-        DisplayData displayData;
-        strncpy(displayData.topLine, "we are responsible for those who have been tame ", sizeof(displayData.topLine) - 1);
-        displayData.topLine[sizeof(displayData.topLine) - 1] = '\0';
-        displayData.value1 = 500;
-        displayData.value2 = 800;
-        displayData.value3 = 855;
-        // 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.setCursor(0, 0);
-        lcd.print(displayArray);
-        lcd.setCursor(0, 1);
-        lcd.print(displayArray + 16); // Вывод второй половины displayArray
-
-        // Ваш код в функции loop() может быть здесь или в другом месте
-
-        // Обновление данных на дисплее
-        lcd_update(&displayData, &textCounter);
-    }
-
-    return 0;
-}

pcf8574.cpp

@@ -1,115 +0,0 @@
-#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;
-}

pcf8574.h

@@ -1,21 +0,0 @@
-#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

sketch_sep19a.ino

@@ -1,83 +0,0 @@
-#include "MyLCD.h"
-
-struct DisplayData {
-  char topLine[64];
-  int value1;
-  int value2;
-  int value3;
-};
-
-struct TextCounter {
-  unsigned long startTime;
-  int incrementValue;
-};
-
-TextCounter textCounter;
-
-void setup() {
-  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 loop() {
-  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
-  }
-
-  DisplayData displayData;
-  strncpy(displayData.topLine, "we are responsible for those who have been tame ", sizeof(displayData.topLine) - 1);
-  displayData.topLine[sizeof(displayData.topLine) - 1] = '\0';
-  displayData.value1 = 500;
-  displayData.value2 = 800;
-  displayData.value3 = 855;
-
-  // 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 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;
-
-  if (endIndex > strlen(source)) {
-    // Если endIndex превышает длину строки source, переносим его на начало строки
-    endIndex = endIndex - strlen(source);
-
-    // Копируем символы с конца строки source
-    strncpy(buffer, source + startIndex, strlen(source) - startIndex);
-
-    // Копируем оставшиеся символы с начала строки source
-    strncat(buffer, source, endIndex);
-  } else {
-    strncpy(buffer, source + startIndex, endIndex - startIndex);
-  }
-  buffer[endIndex - startIndex] = '\0';  // Установка нулевого символа в конце буфера
-}
-
-void fillBuffer2(int value1, int value2, int value3, char* buffer, size_t bufferSize) {
-  snprintf(buffer, bufferSize, "%d.%d.%d", value1, value2, value3);
-}

пример с библиотеками ардуино.txt

@@ -1,55 +0,0 @@
-#include <Wire.h>
-#include <LiquidCrystal_I2C.h>
-
-LiquidCrystal_I2C lcd(32, 16, 2);
-
-byte MasArray[32] = {
-  78, 69, 71, 82, 32, 77, 65, 78, 68, 65, 82, 73, 78, 33, 33, 33,
-  32, 32, 32, 32, 46, 32, 32, 32, 32, 46, 32, 32, 32, 46, 37, 33
-};
-
-char colum1[17];
-char colum2[17];
-
-unsigned long previousTime = 0;
-const unsigned long interval = 200;
-
-void delay_ms(unsigned long milliseconds) {
-  unsigned long startTime = millis();
-  while (millis() - startTime < milliseconds) {
-    // Wait until the specified time has passed
-  }
-}
-
-void setup() {
-  Serial.begin(9600);
-  lcd.init();
-  lcd.backlight();
-
-  for (int i = 0; i < 32; i++) {
-    if (i < 16) {
-      colum1[i] = (char)MasArray[i];
-    } else {
-      colum2[i - 16] = (char)MasArray[i];
-    }
-  }
-  colum1[16] = '\0';
-  colum2[16] = '\0';
-}
-
-void loop() {
-  unsigned long currentTime = millis();
-
-  if (currentTime - previousTime >= interval) {
-    previousTime = currentTime;
-
-    for (int i = 15; i > 0; i--) {
-      lcd.setCursor(i, 0);
-      lcd.print(colum1);
-      lcd.setCursor(0, 1);
-      lcd.print(colum2);
-      delay_ms(200); // Use the custom delay_ms() function instead of delay()
-      lcd.clear();
-    }
-  }
-}

типо с.txt

@@ -1,93 +0,0 @@
-#include <Wire.h>
-
-#define LCD_ADDRESS 0x27
-#define LCD_ROWS 2
-#define LCD_COLUMNS 16
-
-byte MasArray[32] = {
-78, 69, 71, 82, 32, 77, 65, 78, 68, 65, 82, 73, 78, 33, 33, 33,
-32, 32, 32, 32, 46, 32, 32, 32, 32, 46, 32, 32, 32, 46, 37, 33
-};
-
-char colum1[17];
-char colum2[17];
-
-unsigned long previousTime = 0;
-const unsigned long interval = 200;
-
-void delay_ms(unsigned long milliseconds) {
-unsigned long startTime = millis();
-while (millis() - startTime < milliseconds) {
-// Wait until the specified time has passed
-}
-}
-
-void lcdCommand(uint8_t command) {
-Wire.beginTransmission(LCD_ADDRESS);
-Wire.write(0x00);
-Wire.write(command);
-Wire.endTransmission();
-}
-
-void lcdWrite(uint8_t value) {
-Wire.beginTransmission(LCD_ADDRESS);
-Wire.write(0x40);
-Wire.write(value);
-Wire.endTransmission();
-}
-
-void lcdSetCursor(uint8_t row, uint8_t col) {
-uint8_t row_offsets[] = { 0x00, 0x40 };
-uint8_t offset = row_offsets[row] + col;
-lcdCommand(0x80 | offset);
-}
-
-void lcdClear() {
-lcdCommand(0x01); // Clear display
-delay_ms(2); // Delay for clear display command
-}
-
-void lcdInit() {
-Wire.begin();
-lcdCommand(0x38); // Function set: 8-bit mode, 2 lines, 5x8 font
-lcdCommand(0x0C); // Display control: Display ON, Cursor OFF, Blinking OFF
-lcdClear();
-}
-
-void lcdPrint(const char* str) {
-while (*str) {
-lcdWrite(*str++);
-}
-}
-
-void setup() {
-Serial.begin(9600);
-lcdInit();
-
-for (int i = 0; i < 32; i++) {
-if (i < 16) {
-colum1[i] = (char)MasArray[i];
-} else {
-colum2[i - 16] = (char)MasArray[i];
-}
-}
-colum1[16] = '\0';
-colum2[16] = '\0';
-}
-
-void loop() {
-unsigned long currentTime = millis();
-
-if (currentTime - previousTime >= interval) {
-previousTime = currentTime;
-
-for (int i = 15; i > 0; i--) {
-lcdSetCursor(i, 0);
-lcdPrint(colum1);
-lcdSetCursor(0, 1);
-lcdPrint(colum2);
-delay_ms(200); // Use the custom delay_ms() function instead of delay()
-lcdClear();
-}
-}
-}