Razvalyaev
6746b8355e
есть 2 экзампла для i2c oled 128x32 - плеер с иконками - вывод графиками синус и ЭКГ (не встроена пока в gfx библиотеку)
86 lines
1.5 KiB
C
86 lines
1.5 KiB
C
/*
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* oled.c
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*
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* Created on: Nov 17, 2021
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* Author: wvv
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*/
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#include "oled.h"
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <main.h>
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extern I2C_HandleTypeDef hi2c1;
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void oled_write_cmd(uint8_t cmd)
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{
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HAL_I2C_Mem_Write(&hi2c1, 0x78, 0x00, I2C_MEMADD_SIZE_8BIT, &cmd, 1, 0x100);
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}
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uint8_t oled_buf[OLED_HEIGHT * OLED_WIDTH] = { 0 };
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void oled_clear(void)
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{
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memset(oled_buf, 0x00, sizeof(oled_buf));
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}
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void oled_refresh(void)
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{
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for (uint8_t i = 0; i < OLED_HEIGHT; i++)
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{
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oled_write_cmd(0xb0 + i);
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oled_write_cmd(0x00);
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oled_write_cmd(0x10);
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HAL_StatusTypeDef ret = HAL_I2C_Mem_Write(&hi2c1, 0x78, 0x40, 1,
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(uint8_t*) &oled_buf[i * OLED_WIDTH], OLED_WIDTH, 100);
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if (ret != HAL_OK)
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{
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HAL_I2C_DeInit(&hi2c1);
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HAL_I2C_Init(&hi2c1);
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}
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}
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}
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void oled_init(void)
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{
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oled_write_cmd(0xAE);
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oled_write_cmd(0x20);
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oled_write_cmd(0x10);
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oled_write_cmd(0xB0);
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oled_write_cmd(0xC8);
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oled_write_cmd(0x00);
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oled_write_cmd(0x10);
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oled_write_cmd(0x40);
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oled_write_cmd(0x81);
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oled_write_cmd(0xff);
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oled_write_cmd(0xa1);
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oled_write_cmd(0xa6);
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oled_write_cmd(0xa8);
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oled_write_cmd(0x1f);
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oled_write_cmd(0xd3);
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oled_write_cmd(0x00);
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oled_write_cmd(0xd5);
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oled_write_cmd(0xf0);
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oled_write_cmd(0xd9);
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oled_write_cmd(0x22);
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oled_write_cmd(0xda);
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oled_write_cmd(0x02);
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oled_write_cmd(0xdb);
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oled_write_cmd(0x20);
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oled_write_cmd(0x8d);
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oled_write_cmd(0x14);
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oled_write_cmd(0xaf);
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HAL_Delay(100);
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oled_clear();
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oled_refresh();
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}
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