STM32H750XB_RT-THREAD/36-SDMMC—SD卡读写测试/User/main.c
2025-07-21 14:34:29 +08:00

153 lines
4.7 KiB
C
Raw Permalink Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/**
******************************************************************
* @file main.c
* @author fire
* @version V1.0
* @date 2018-xx-xx
* @brief SDMMC-SD卡读写测试
******************************************************************
* @attention
*
* 实验平台:野火 STM32H750 开发板
* 论坛 :http://www.firebbs.cn
* 淘宝 :http://firestm32.taobao.com
*
******************************************************************
*/
#include "stm32h7xx.h"
#include "main.h"
#include "./led/bsp_led.h"
#include "./usart/bsp_debug_usart.h"
#include "./sd_card/bsp_sdio_sd.h"
#include "./key/bsp_key.h"
#include "./delay/core_delay.h"
#include "./mpu/bsp_mpu.h"
static void CPU_CACHE_Enable(void)
{
/* Enable I-Cache */
SCB_EnableICache();
/* Enable D-Cache */
SCB_EnableDCache();
//将Cache设置write-through方式
SCB->CACR|=1<<2;
}
/**
* @brief 主函数
* @param 无
* @retval 无
*/
int main(void)
{
/* 系统时钟初始化成480MHz */
SystemClock_Config();
/* 默认不配置 MPU若需要更高性能当配置 MPU 后,使用
DMA 时需注意 Cache 与 内存内容一致性的问题,
具体注意事项请参考配套教程的 MPU 配置相关章节 */
// Board_MPU_Config(0, MPU_Normal_WT, 0xD0000000, MPU_32MB);
// Board_MPU_Config(1, MPU_Normal_WT, 0x24000000, MPU_512KB);
//
CPU_CACHE_Enable();
LED_GPIO_Config();
LED_BLUE;
/* 初始化USART1 配置模式为 115200 8-N-1 */
DEBUG_USART_Config();
/* 初始化独立按键 */
Key_GPIO_Config();
printf("\r\n欢迎使用野火 STM32 H750 开发板。\r\n");
printf("在开始进行SD卡基本测试前请给开发板插入32G以内的SD卡\r\n");
printf("本程序会对SD卡进行非文件系统方式读写会删除SD卡的文件系统\r\n");
printf("实验后可通过电脑格式化或使用SD卡文件系统的例程恢复SD卡文件系统\r\n");
printf("\r\n 但sd卡内的原文件不可恢复实验前务必备份SD卡内的原文件\r\n");
printf("\r\n 若已确认请按开发板的KEY1按键开始SD卡测试实验....\r\n");
while(Key_Scan(KEY1_GPIO_PORT,KEY1_PIN) == KEY_OFF);
printf("\r\n开始进行SD卡读写实验\r\n");
SD_Test();
while(1)
{
}
}
/**
* @brief System Clock 配置
* system Clock 配置如下:
* System Clock source = PLL (HSE)
* SYSCLK(Hz) = 480000000 (CPU Clock)
* HCLK(Hz) = 240000000 (AXI and AHBs Clock)
* AHB Prescaler = 2
* D1 APB3 Prescaler = 2 (APB3 Clock 120MHz)
* D2 APB1 Prescaler = 2 (APB1 Clock 120MHz)
* D2 APB2 Prescaler = 2 (APB2 Clock 120MHz)
* D3 APB4 Prescaler = 2 (APB4 Clock 120MHz)
* HSE Frequency(Hz) = 25000000
* PLL_M = 5
* PLL_N = 192
* PLL_P = 2
* PLL_Q = 4
* PLL_R = 2
* VDD(V) = 3.3
* Flash Latency(WS) = 4
* @param None
* @retval None
*/
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** 启用电源配置更新
*/
HAL_PWREx_ConfigSupply(PWR_LDO_SUPPLY);
/** 配置主内稳压器输出电压
*/
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE0);
while(!__HAL_PWR_GET_FLAG(PWR_FLAG_VOSRDY)) {}
/** 初始化CPU、AHB和APB总线时钟
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 5;
RCC_OscInitStruct.PLL.PLLN = 192;
RCC_OscInitStruct.PLL.PLLP = 2;
RCC_OscInitStruct.PLL.PLLQ = 4;
RCC_OscInitStruct.PLL.PLLR = 2;
RCC_OscInitStruct.PLL.PLLRGE = RCC_PLL1VCIRANGE_2;
RCC_OscInitStruct.PLL.PLLVCOSEL = RCC_PLL1VCOWIDE;
RCC_OscInitStruct.PLL.PLLFRACN = 0;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
while(1);
}
/** 初始化CPU、AHB和APB总线时钟
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2
|RCC_CLOCKTYPE_D3PCLK1|RCC_CLOCKTYPE_D1PCLK1;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.SYSCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.AHBCLKDivider = RCC_HCLK_DIV2;
RCC_ClkInitStruct.APB3CLKDivider = RCC_APB3_DIV2;
RCC_ClkInitStruct.APB1CLKDivider = RCC_APB1_DIV2;
RCC_ClkInitStruct.APB2CLKDivider = RCC_APB2_DIV2;
RCC_ClkInitStruct.APB4CLKDivider = RCC_APB4_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK)
{
while(1);
}
}
/****************************END OF FILE***************************/