*

2025-05-13 04:55:13 +03:00
parent 3f693566bd
commit ceb6d0ccec
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+/*
+ * ssd1306.h
+ *
+ *  Created on: 12 ôåâð. 2017 ã.
+ *      Author: l-pro
+ */
+
+#ifndef SSD1306_H_
+#define SSD1306_H_
+
+#include <cstdint>
+#include "stm32f4xx_hal.h"
+
+namespace SSD1306 {
+
+namespace ScrollStepInterval {
+	static constexpr uint8_t Frames_2   = 0b111;
+	static constexpr uint8_t Frames_3   = 0b100;
+	static constexpr uint8_t Frames_4   = 0b101;
+	static constexpr uint8_t Frames_5   = 0b000;
+	static constexpr uint8_t Frames_25  = 0b110;
+	static constexpr uint8_t Frames_64  = 0b001;
+	static constexpr uint8_t Frames_128 = 0b010;
+	static constexpr uint8_t Frames_256 = 0b011;
+}
+
+namespace Commands {
+	namespace Fundamental {
+		static constexpr uint8_t SetContrastControl = 0x81;
+		static constexpr uint8_t EntireDisplayONRamResume = 0xA4;
+		static constexpr uint8_t EntireDisplayONRamIgnore = 0xA5;
+		static constexpr uint8_t SetNormalDisplay = 0xA6;
+		static constexpr uint8_t SetInverseDisplay = 0xA7;
+		static constexpr uint8_t SetDisplayOFF = 0xAE;
+		static constexpr uint8_t SetDisplayON = 0xAF;
+	}
+	namespace Scrolling {
+		static constexpr uint8_t HorizontalScrollSetupRight = 0x26;
+		static constexpr uint8_t HorizontalScrollSetupLeft = 0x27;
+		static constexpr uint8_t Deactivatescroll = 0x2E;
+		static constexpr uint8_t Activatescroll = 0x2F;
+	}
+
+	namespace Addressing {
+		static constexpr uint8_t SetMemoryAddressingMode = 0x20;
+		static constexpr uint8_t SetColumnAddress = 0x21;
+		static constexpr uint8_t SetPageAddress = 0x22;
+
+		static constexpr uint8_t SetPageStartAddress = 0xB0;
+	}
+
+	namespace ChargePump {
+		static constexpr uint8_t ChargePumpSetting = 0x8D;
+		static constexpr uint8_t DisableChargePump = 0x10;
+		static constexpr uint8_t EnableChargePump = 0x14;
+	}
+}
+
+inline void command(I2C_HandleTypeDef* i2c, uint8_t c) {
+    // I2C
+	uint8_t buffer[2] = {0x00, c};
+	auto result = HAL_I2C_Master_Transmit(i2c, 0x78, buffer, sizeof(buffer), HAL_MAX_DELAY);
+	if(HAL_OK != result){
+		for(;;);
+	}
+    /*uint8_t control = 0x00;   // Co = 0, D/C = 0
+    Wire.beginTransmission(_i2caddr);
+    Wire.write(control);
+    Wire.write(c);
+    Wire.endTransmission();*/
+}
+
+inline void setPage(I2C_HandleTypeDef* i2c, uint8_t page){
+	command(i2c, Commands::Addressing::SetPageStartAddress + page);
+	command(i2c, 0x00);
+	command(i2c, 0x10);
+}
+
+inline void writePixels(I2C_HandleTypeDef* i2c, uint8_t* pixels, uint16_t count){
+	/*command(i2c, Commands::Addressing::SetColumnAddress);
+	command(i2c, 0);   // Column start address
+	command(i2c, 127); // Column end address
+
+	command(i2c, Commands::Addressing::SetPageAddress);
+	command(i2c, 0); // Page start address (0 = reset)
+	command(i2c, 7); // Page end address*/
+
+
+
+	/*uint8_t buffer[16 + 1];
+	buffer[0] = 0x40;
+	for(int i = 0; i < 16; ++i){
+		buffer[i + 1] = value;
+	}
+
+	HAL_I2C_Master_Transmit(i2c, 0x78, buffer, sizeof(buffer), HAL_MAX_DELAY);
+*/
+	uint8_t buffer = 0x40;
+	//HAL_I2C_Master_Transmit(i2c, 0x78, &buffer, sizeof(buffer), HAL_MAX_DELAY);
+	pixels[0] = 0x40;
+	HAL_I2C_Master_Transmit(i2c, 0x78, pixels, count, HAL_MAX_DELAY);
+
+
+	/*for (uint16_t i = 0; i < (128*(64/8)); i++) {
+
+		HAL_I2C_Master_Transmit()
+		Wire.beginTransmission(_i2caddr);
+		WIRE_WRITE(0x40);
+		for (uint8_t x=0; x<16; x++) {
+			WIRE_WRITE(buffer[i]);
+			i++;
+		}
+		i--;
+		Wire.endTransmission();
+	}*/
+}
+}
+
+
+
+#endif /* SSD1306_H_ */