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Oled_I2C[1].ino

@@ -0,0 +1,13 @@
+#include "head_oled_i2c.h"
+
+void setup() {
+    initialization();
+    Fill(255);
+    update();
+    Fill(0);
+    DrawCircle(50, 30, 20, 1, 0);
+    update();
+}
+
+void loop() {
+}

head_oled_i2c[1].h

@@ -0,0 +1,79 @@
+#ifndef head_oled_i2c
+#define head_oled_i2c
+
+#define OLED_HEIGHT_64          0x12
+#define OLED_64                 0x3F
+
+#define OLED_DISPLAY_OFF        0xAE
+#define OLED_DISPLAY_ON         0xAF
+
+#define OLED_COMMAND_MODE       0x00
+#define OLED_ONE_COMMAND_MODE   0x80
+#define OLED_DATA_MODE          0x40
+
+#define OLED_ADDRESSING_MODE    0x20
+#define OLED_VERTICAL           0x01
+
+#define OLED_NORMAL_V            0xC8
+#define OLED_NORMAL_H            0xA1
+
+#define OLED_CONTRAST           0x81
+#define OLED_SETCOMPINS           0xDA
+#define OLED_SETVCOMDETECT        0xDB
+#define OLED_CLOCKDIV             0xD5
+#define OLED_SETMULTIPLEX        0xA8
+#define OLED_COLUMNADDR            0x21
+#define OLED_PAGEADDR            0x22
+#define OLED_CHARGEPUMP            0x8D
+
+#define OLED_NORMALDISPLAY        0xA6
+
+#define OLED_BUFSIZE (128*64/8)
+
+#define OLED_MAX_X 127
+#define OLED_MAX_Y 63
+#define OLED_MAX_ROW 7
+
+#define OLED_ADDR 0x3C
+#define OLED_I2C_FREQ 100000UL
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+void i2c_begin(uint8_t address);
+void i2c_endTransaction();
+void i2c_beginTransmission(uint8_t address);
+void i2c_write(uint8_t data);
+
+void endTransm();
+void sendByteRaw(uint8_t data);
+void startTransm();
+void beginData();
+void sendByte(uint8_t data);
+
+void sendCommand(uint8_t cmd1);
+void sendCommandData(uint8_t cmd1, uint8_t cmd2);
+uint8_t constrainValue(uint8_t value, uint8_t min, uint8_t max);
+void setWindow(int x0, int y0, int x1, int y1);
+
+void beginCommand();
+void beginOneCommand();
+
+void initialization();
+
+void setBit(uint8_t *value, uint8_t bitIndex, uint8_t bitValue);
+void DrawPixel(uint8_t x, uint8_t y, uint8_t fill);
+void DrawLine(uint8_t x1, uint8_t y1, uint8_t x2, uint8_t y2, uint8_t color);
+void DrawRect(uint8_t x, uint8_t y, uint8_t width, uint8_t height, uint8_t color, uint8_t fill);
+void DrawCircle(uint8_t x0, uint8_t y0, uint8_t radius, uint8_t color, uint8_t fill);
+void Fill(uint8_t fill);
+void update();
+
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

oled_i2c[1].c

@@ -0,0 +1,240 @@
+#include "stdint.h"
+#include <avr/io.h>
+#include "head_oled_i2c.h"
+
+uint8_t _oled_buffer[OLED_BUFSIZE];
+uint8_t _writes = 0;
+
+void i2c_begin(uint8_t address) {
+    TWBR = ((F_CPU / OLED_I2C_FREQ) - 16) / 2;
+    TWAR = (address << 1);
+}
+
+void i2c_endTransaction() {
+    TWCR = (1 << TWINT) | (1 << TWEN) | (1 << TWSTO);
+}
+
+void i2c_beginTransmission(uint8_t address) {
+    TWCR = (1 << TWINT) | (1 << TWSTA) | (1 << TWEN);
+    while (!(TWCR & (1 << TWINT)));
+
+    TWDR = (address << 1);
+    TWCR = (1 << TWINT) | (1 << TWEN);
+    while (!(TWCR & (1 << TWINT)));
+}
+
+void i2c_write(uint8_t data) {
+    TWDR = data;  // Запись данных
+    TWCR = (1 << TWINT) | (1 << TWEN);
+    while (!(TWCR & (1 << TWINT)));
+}
+
+
+
+void endTransm() {
+    i2c_endTransaction();
+    _writes = 0;
+}
+
+void sendByteRaw(uint8_t data) {
+    i2c_write(data);
+}
+
+void startTransm() {
+    i2c_beginTransmission(OLED_ADDR);
+}
+
+void beginCommand() {
+    startTransm();
+    sendByteRaw(OLED_COMMAND_MODE);
+}
+
+void beginData() {
+    startTransm();
+    sendByteRaw(OLED_DATA_MODE);
+}
+
+void sendByte(uint8_t data) {
+    sendByteRaw(data);
+    _writes++;
+    if (_writes >= 16) {
+        endTransm();
+        beginData();
+    }
+}
+
+void beginOneCommand() {
+    startTransm();
+    sendByteRaw(OLED_ONE_COMMAND_MODE);
+}
+
+void sendCommand(uint8_t cmd1) {
+    beginOneCommand();
+    sendByteRaw(cmd1);
+    endTransm();
+}
+
+void sendCommandData(uint8_t cmd1, uint8_t cmd2) {
+    beginCommand();
+    sendByteRaw(cmd1);
+    sendByteRaw(cmd2);
+    endTransm();
+}
+
+uint8_t constrainValue(uint8_t value, uint8_t min, uint8_t max) {
+    if (value < min) {
+        return min;
+    } else if (value > max) {
+        return max;
+    }
+    return value;
+}
+
+
+void setWindow(int x0, int y0, int x1, int y1) {
+    beginCommand();
+    sendByteRaw(OLED_COLUMNADDR);
+    sendByteRaw(constrainValue(x0, 0, OLED_MAX_X));
+    sendByteRaw(constrainValue(x1, 0, OLED_MAX_X));
+    sendByteRaw(OLED_PAGEADDR);
+    sendByteRaw(constrainValue(y0, 0, OLED_MAX_ROW));
+    sendByteRaw(constrainValue(y1, 0, OLED_MAX_ROW));
+    endTransm();
+}
+
+void initialization() {
+    i2c_begin(OLED_ADDR);
+
+    beginCommand();
+    sendByte(OLED_DISPLAY_OFF);
+    sendByte(OLED_CLOCKDIV);
+    sendByte(0x80);
+    sendByte(OLED_CHARGEPUMP);
+    sendByte(0x14);
+    sendByte(OLED_ADDRESSING_MODE);
+    sendByte(OLED_VERTICAL);
+    sendByte(OLED_NORMAL_H);
+    sendByte(OLED_NORMAL_V);
+    sendByte(OLED_CONTRAST);
+    sendByte(0x7F);
+    sendByte(OLED_SETVCOMDETECT);
+    sendByte(0x40);
+    sendByte(OLED_NORMALDISPLAY);
+    sendByte(OLED_DISPLAY_ON);
+    endTransm();
+
+    beginCommand();
+    sendByte(OLED_SETCOMPINS);
+    sendByte(OLED_HEIGHT_64);
+    sendByte(OLED_SETMULTIPLEX);
+    sendByte(OLED_64);
+    endTransm();
+
+    setWindow(0, 0, OLED_MAX_X, OLED_MAX_ROW);
+}
+
+void setBit(uint8_t *value, uint8_t bitIndex, uint8_t bitValue) {
+    if (bitValue != 0) {
+        *value |= (1 << bitIndex);
+    } else {
+        *value &= ~(1 << bitIndex);
+    }
+}
+
+void DrawPixel(uint8_t x, uint8_t y, uint8_t fill) {
+    if (x < 0 || x > OLED_MAX_X || y < 0 || y > OLED_MAX_Y) return;
+    uint16_t _bufIndex = ((y) >> 3) + ((x) << (3));
+    setBit(&_oled_buffer[_bufIndex], y & 0b111, fill);
+}
+
+void DrawLine(uint8_t x1, uint8_t y1, uint8_t x2, uint8_t y2, uint8_t color) {
+    uint8_t dx = abs(x2 - x1);
+    uint8_t dy = abs(y2 - y1);
+    uint8_t sx = x1 < x2 ? 1 : -1;
+    uint8_t sy = y1 < y2 ? 1 : -1;
+    uint8_t err = dx - dy;
+
+    while (1) {
+        DrawPixel(x1, y1, color);
+
+        if (x1 == x2 && y1 == y2) break;
+
+        uint8_t e2 = 2 * err;
+
+        if (e2 > -dy) {
+            err -= dy;
+            x1 += sx;
+        }
+
+        if (e2 < dx) {
+            err += dx;
+            y1 += sy;
+        }
+    }
+}
+
+void DrawRect(uint8_t x, uint8_t y, uint8_t width, uint8_t height, uint8_t color, uint8_t fill) {
+    if (fill) {
+        for (uint8_t i = y; i < y + height; i++) {
+            DrawLine(x, i, x + width - 1, i, color);
+        }
+    } else {
+        for (uint8_t i = x; i < x + width; i++) {
+            DrawPixel(i, y, color);
+            DrawPixel(i, y + height - 1, color);
+        }
+        for (uint8_t i = y; i < y + height; i++) {
+            DrawPixel(x, i, color);
+            DrawPixel(x + width - 1, i, color);
+        }
+    }
+}
+
+//
+void DrawCircle(uint8_t x0, uint8_t y0, uint8_t radius, uint8_t color, uint8_t fill) {
+    int8_t x = radius;
+    int8_t y = 0;
+    int8_t err = 0;
+
+    while (x >= y) {
+        if (fill) {
+            for (int8_t i = x0 - x; i <= x0 + x; i++) {
+                DrawPixel(i, y0 + y, color);
+                DrawPixel(i, y0 - y, color);
+            }
+            for (int8_t i = x0 - y; i <= x0 + y; i++) {
+                DrawPixel(i, y0 + x, color);
+                DrawPixel(i, y0 - x, color);
+            }
+        } else {
+            DrawPixel(x0 + x, y0 + y, color);
+            DrawPixel(x0 - x, y0 + y, color);
+            DrawPixel(x0 + x, y0 - y, color);
+            DrawPixel(x0 - x, y0 - y, color);
+            DrawPixel(x0 + y, y0 + x, color);
+            DrawPixel(x0 - y, y0 + x, color);
+            DrawPixel(x0 + y, y0 - x, color);
+            DrawPixel(x0 - y, y0 - x, color);
+        }
+
+        y++;
+        err += 1 + 2 * y;
+        if (2 * (err - x) + 1 > 0) {
+            x--;
+            err += 1 - 2 * x;
+        }
+    }
+}
+
+// Заполнить дисплей
+void Fill(uint8_t fill) {
+    memset(_oled_buffer, fill, OLED_BUFSIZE);
+}
+
+// Обновить дисплей
+void update() {
+    setWindow(0, 0, OLED_MAX_X, OLED_MAX_ROW);
+    beginData();
+    for (int i = 0; i < OLED_BUFSIZE; i++) sendByte(_oled_buffer[i]);
+    endTransm();
+}