258 lines
7.7 KiB
C
258 lines
7.7 KiB
C
/**
|
||
******************************************************************
|
||
* @file main.c
|
||
* @author fire
|
||
* @version V1.0
|
||
* @date 2019-xx-xx
|
||
* @brief SDMMC-FatFS移植与读写测试
|
||
******************************************************************
|
||
* @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 "./mpu/bsp_mpu.h"
|
||
#include "./delay/core_delay.h"
|
||
/* FatFs includes component */
|
||
#include "ff.h"
|
||
#include "ff_gen_drv.h"
|
||
#include "sd_diskio.h"
|
||
/**
|
||
******************************************************************************
|
||
* 定义变量
|
||
******************************************************************************
|
||
*/
|
||
char SDPath[4]; /* SD逻辑驱动器路径 */
|
||
static FATFS fs; /* FatFs文件系统对象 */
|
||
static FIL fnew; /* 文件对象 */
|
||
static FRESULT res_sd; /* 文件操作结果 */
|
||
UINT fnum; /* 文件成功读写数量 */
|
||
BYTE ReadBuffer[1024]={0}; /* 读缓冲区 */
|
||
BYTE WriteBuffer[] = /* 写缓冲区*/
|
||
"欢迎使用野火STM32 H750开发板 今天是个好日子，新建文件系统测试文件\r\n";
|
||
|
||
extern FATFS flash_fs;
|
||
extern Diskio_drvTypeDef SD_Driver;
|
||
/**
|
||
* @brief CPU L1-Cache enable.
|
||
* @param None
|
||
* @retval None
|
||
*/
|
||
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();
|
||
/* 配置 MPU*/
|
||
Board_MPU_Config(0, MPU_Normal_WT, 0xD0000000, MPU_32MB);
|
||
Board_MPU_Config(1, MPU_Normal_WT, 0x24000000, MPU_512KB);
|
||
|
||
SCB_EnableICache(); // 使能指令 Cache
|
||
SCB_EnableDCache(); // 使能数据 Cache
|
||
|
||
LED_GPIO_Config();
|
||
LED_BLUE;
|
||
/* 初始化USART1 配置模式为 115200 8-N-1 */
|
||
DEBUG_USART_Config();
|
||
printf("****** 这是一个SD卡文件系统实验 ******\r\n");
|
||
//链接驱动器，创建盘符
|
||
FATFS_LinkDriver(&SD_Driver, SDPath);
|
||
//在外部SD卡挂载文件系统，文件系统挂载时会对SD卡初始化
|
||
res_sd = f_mount(&fs,"0:",1);
|
||
|
||
/*----------------------- 格式化测试 ---------------------------*/
|
||
/* 如果没有文件系统就格式化创建创建文件系统 */
|
||
if(res_sd == FR_NO_FILESYSTEM)
|
||
{
|
||
printf("》SD卡还没有文件系统，即将进行格式化...\r\n");
|
||
/* 格式化 */
|
||
res_sd=f_mkfs("0:",0,0);
|
||
|
||
if(res_sd == FR_OK)
|
||
{
|
||
printf("》SD卡已成功格式化文件系统。\r\n");
|
||
/* 格式化后，先取消挂载 */
|
||
res_sd = f_mount(NULL,"0:",1);
|
||
/* 重新挂载 */
|
||
res_sd = f_mount(&fs,"0:",1);
|
||
}
|
||
else
|
||
{
|
||
LED_RED;
|
||
printf("《《格式化失败。》》\r\n");
|
||
while(1);
|
||
}
|
||
}
|
||
else if(res_sd!=FR_OK)
|
||
{
|
||
printf("！！SD卡挂载文件系统失败。(%d)\r\n",res_sd);
|
||
printf("！！可能原因：SD卡初始化不成功。\r\n");
|
||
while(1);
|
||
}
|
||
else
|
||
{
|
||
printf("》文件系统挂载成功，可以进行读写测试\r\n");
|
||
}
|
||
|
||
/*----------------------- 文件系统测试：写测试 -----------------------------*/
|
||
/* 打开文件，如果文件不存在则创建它 */
|
||
printf("\r\n****** 即将进行文件写入测试... ******\r\n");
|
||
res_sd = f_open(&fnew, "0:FatFs读写测试文件.txt",FA_CREATE_ALWAYS | FA_WRITE );
|
||
if ( res_sd == FR_OK )
|
||
{
|
||
printf("》打开/创建FatFs读写测试文件.txt文件成功，向文件写入数据。\r\n");
|
||
/* 将指定存储区内容写入到文件内 */
|
||
res_sd=f_write(&fnew,WriteBuffer,sizeof(WriteBuffer),&fnum);
|
||
if(res_sd==FR_OK)
|
||
{
|
||
printf("》文件写入成功，写入字节数据：%d\n",fnum);
|
||
printf("》向文件写入的数据为：\r\n%s\r\n",WriteBuffer);
|
||
}
|
||
else
|
||
{
|
||
printf("！！文件写入失败：(%d)\n",res_sd);
|
||
}
|
||
/* 不再读写，关闭文件 */
|
||
f_close(&fnew);
|
||
}
|
||
else
|
||
{
|
||
LED_RED;
|
||
printf("！！打开/创建文件失败。\r\n");
|
||
}
|
||
|
||
/*------------------- 文件系统测试：读测试 ------------------------------------*/
|
||
printf("****** 即将进行文件读取测试... ******\r\n");
|
||
res_sd = f_open(&fnew, "0:FatFs读写测试文件.txt", FA_OPEN_EXISTING | FA_READ);
|
||
if(res_sd == FR_OK)
|
||
{
|
||
LED_GREEN;
|
||
printf("》打开文件成功。\r\n");
|
||
res_sd = f_read(&fnew, ReadBuffer, sizeof(ReadBuffer), &fnum);
|
||
if(res_sd==FR_OK)
|
||
{
|
||
printf("》文件读取成功,读到字节数据：%d\r\n",fnum);
|
||
printf("》读取得的文件数据为：\r\n%s \r\n", ReadBuffer);
|
||
}
|
||
else
|
||
{
|
||
printf("！！文件读取失败：(%d)\n",res_sd);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
LED_RED;
|
||
printf("！！打开文件失败。\r\n");
|
||
}
|
||
/* 不再读写，关闭文件 */
|
||
f_close(&fnew);
|
||
|
||
/* 不再使用文件系统，取消挂载文件系统 */
|
||
f_mount(NULL,"0:",1);
|
||
|
||
/* 操作完成，停机 */
|
||
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***************************/
|