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STM32F103/STM32F103C8T6/Core/Src/main.c
2026-07-14 18:17:00 +08:00

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/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2026 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "adc.h"
#include "dma.h"
#include "i2c.h"
#include "spi.h"
#include "tim.h"
#include "usart.h"
#include "gpio.h"
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <stdio.h>
#include "button_driver.h"
#include "st7735s.h"
#include "lcd.h"
#include "at24c02.h"
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* USER CODE END PTD */
/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */
/* USER CODE END PD */
/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */
/* USER CODE END PM */
/* Private variables ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* ADC 时钟预分频PCLK2 / 6 = 72/6 = 12MHz */
/* 默认 /2=36MHz 超过 14MHz 规格ADC 无法正常工作 */
RCC->CFGR = (RCC->CFGR & ~RCC_CFGR_ADCPRE) | RCC_CFGR_ADCPRE_DIV6;
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_DMA_Init();
MX_USART1_UART_Init();
MX_SPI2_Init();
MX_TIM4_Init();
MX_ADC1_Init();
MX_TIM3_Init();
MX_I2C1_Init();
/* USER CODE BEGIN 2 */
printf("\r\nSTM32F103C8T6 Boot OK\r\n");
button_driver_init();
st7735s_init();
st7735s_fill_screen(COLOR_RED);
HAL_Delay(500);
st7735s_fill_screen(COLOR_BLACK);
lcd_draw_string(0, 0, "01234", COLOR_WHITE, COLOR_BLACK);
lcd_draw_string(0, 16, "LCD_OK", COLOR_WHITE, COLOR_BLACK);
lcd_draw_chinese_string(0, 32, "\xE9\x98\x9C\xE9\x98\xB3\xE5\xB8\x88\xE8\x8C\x83\xE5\xA4\xA7\xE5\xAD\xA6", COLOR_WHITE, COLOR_BLACK); /*阜阳师范大学*/
lcd_draw_chinese_string(0, 48, "\xE7\x94\xB5\xE5\xAD\x90\xE8\xAE\xBE\xE8\xAE\xA1\xE7\xAB\x9E\xE8\xB5\x9B", COLOR_WHITE, COLOR_BLACK); /*电子设计竞赛*/
/* 启动 TIM3 四路 PWMPA6 CH1, PA7 CH2, PB0 CH3, PB1 CH4 */
HAL_TIM_PWM_Start(&htim3, TIM_CHANNEL_1);
HAL_TIM_PWM_Start(&htim3, TIM_CHANNEL_2);
HAL_TIM_PWM_Start(&htim3, TIM_CHANNEL_3);
HAL_TIM_PWM_Start(&htim3, TIM_CHANNEL_4);
/* 设置占空比0~999 对应 0%~100% */
__HAL_TIM_SET_COMPARE(&htim3, TIM_CHANNEL_1, 500); /* 50% */
__HAL_TIM_SET_COMPARE(&htim3, TIM_CHANNEL_2, 250); /* 25% */
__HAL_TIM_SET_COMPARE(&htim3, TIM_CHANNEL_3, 750); /* 75% */
__HAL_TIM_SET_COMPARE(&htim3, TIM_CHANNEL_4, 999); /* 100% */
/* === 测试:常规组软件触发,确认 ADC 硬件正常 === */
HAL_ADC_Start(&hadc1);
if (HAL_ADC_PollForConversion(&hadc1, 100) == HAL_OK) {
printf("ADC REG TEST: %d\r\n", HAL_ADC_GetValue(&hadc1));
}
HAL_ADC_Stop(&hadc1);
/* 启动 TIM4TRGO = Update1kHz 触发 ADC1 注入组) */
HAL_TIM_Base_Start(&htim4);
/* 启动 ADC 注入组TIM4 每触发一次,自动采一轮 PA0~PA3 */
HAL_ADCEx_InjectedStart(&hadc1);
/* === AT24C02 EEPROM 测试 === */
{
uint8_t wbuf[] = {0x11, 0x22, 0x33, 0x44, 0x55};
uint8_t rbuf[8];
int i, ret;
ret = at24c02_scan();
if (ret == AT24C02_OK) {
lcd_draw_string(0, 64, "AT24C02 OK", COLOR_GREEN, COLOR_BLACK);
} else {
lcd_draw_string(0, 64, "AT24C02 FAIL", COLOR_RED, COLOR_BLACK);
}
/* 在地址 0 写入 5 个字节 */
ret = at24c02_write_buf(0, wbuf, 5);
printf("AT24C02 write: %d\r\n", ret);
/* 从地址 0 读回 8 个字节 */
ret = at24c02_read_buf(0, rbuf, 8);
printf("AT24C02 read[%d]:", ret);
for (i = 0; i < 8; i++) {
printf(" %02X", rbuf[i]);
}
printf("\r\n");
/* 验证 */
lcd_draw_string(0, 80, "EEPROM:", COLOR_WHITE, COLOR_BLACK);
for (i = 0; i < 5; i++) {
if (rbuf[i] != wbuf[i]) {
printf("AT24C02 ERR: addr %d expect %02X got %02X\r\n",
i, wbuf[i], rbuf[i]);
break;
}
}
if (i == 5) {
printf("AT24C02 verify OK\r\n");
}
}
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
HAL_Delay(1000);
HAL_GPIO_TogglePin(LED_GPIO_Port, LED_Pin);
/* 读取 ADC 注入组结果TIM4 以 1kHz 触发,每秒打印一次最新值) */
uint16_t adc0 = HAL_ADCEx_InjectedGetValue(&hadc1, ADC_INJECTED_RANK_1);
uint16_t adc1 = HAL_ADCEx_InjectedGetValue(&hadc1, ADC_INJECTED_RANK_2);
uint16_t adc2 = HAL_ADCEx_InjectedGetValue(&hadc1, ADC_INJECTED_RANK_3);
uint16_t adc3 = HAL_ADCEx_InjectedGetValue(&hadc1, ADC_INJECTED_RANK_4);
printf("ADC: %4d %4d %4d %4d\r\n", adc0, adc1, adc2, adc3);
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
{
Error_Handler();
}
PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_ADC;
PeriphClkInit.AdcClockSelection = RCC_ADCPCLK2_DIV6;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
{
Error_Handler();
}
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @retval None
*/
void Error_Handler(void)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
__disable_irq();
while (1)
{
}
/* USER CODE END Error_Handler_Debug */
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* USER CODE BEGIN 6 */
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */