Posted on May 14, 2017 at 09:03Hi there
I waste much time on mounting sdcard in my prgram. the chip is stm32f745vg and i work with Firmware version 1.7 CubMX 4.19 and Keil 5.16
in CubeMX, i choose SDMMC1 in 1-bit mode with clock 48MHz(PLLQ=9) and FatFS --> SD Card. i leave Fatfs Options in Default(no change). other Configurations:
Flash Interface --> Enable
ART ACCLERATOR --> Enable
Instruction PreFetch -->Enable
CPU ICach --> Enable
CPU DCach --> Enable
GPIO Configuration
SDMMC divide Factor=0
when i try to use f_mount function, i receive FR_DISK_ERR error as result Value.
no difference in Activating SD interrupt. my program is :
////////////////////////////////////////////////////////////////////////////
SD_HandleTypeDef hsd1;
FRESULT res3,res1,res2;
FATFS SDFatFs;
FIL MyFile;
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
void Error_Handler(void);
static void MX_GPIO_Init(void);
static void MX_SDMMC1_SD_Init(void);
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
/* USER CODE END PFP */
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
int main(void)
{
uint32_t byteswritten;
uint8_t wtext[] = 'This is STM32 working with FatFs';
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration----------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* Configure the system clock */
SystemClock_Config();
/* Initialize all configured peripherals */
MX_GPIO_Init();
HAL_Delay(200);
HAL_GPIO_WritePin(GPIOD,GPIO_PIN_1,GPIO_PIN_RESET); ---for activating uSD Power that Connected with trsistor
HAL_Delay(1000);
MX_SDMMC1_SD_Init();
HAL_SD_Init(&hsd1);
HAL_Delay(200);
MX_FATFS_Init();
/* USER CODE BEGIN 2 */
res1=f_mount(&SDFatFs, SD_Path, 1);
if(res1 != FR_OK)
{
/* FatFs Initialization Error */
HAL_GPIO_WritePin(GPIOD,GPIO_PIN_8,GPIO_PIN_SET);
}
else
{
res2=f_open(&MyFile, 'STM32.TXT', FA_CREATE_ALWAYS | FA_WRITE);
if(res2 != FR_OK)
{
HAL_GPIO_WritePin(GPIOD,GPIO_PIN_9,GPIO_PIN_SET);
}
else
{
res3 = f_write(&MyFile, wtext, sizeof(wtext), (void *)&byteswritten);
if((byteswritten == 0) || (res3 != FR_OK))
{
/* 'STM32.TXT' file Write or EOF Error */
HAL_GPIO_WritePin(GPIOD,GPIO_PIN_10,GPIO_PIN_SET);
}
else
{
/*##-6- Close the open text file #################################*/
f_close(&MyFile);
/*##-7- Open the text file object with read access ###############*/
}
}
}
FATFS_UnLinkDriver(SD_Path);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
my SD Configuration is :
static void MX_SDMMC1_SD_Init(void)
{
hsd1.Instance = SDMMC1;
hsd1.Init.ClockEdge = SDMMC_CLOCK_EDGE_RISING;
hsd1.Init.ClockBypass = SDMMC_CLOCK_BYPASS_DISABLE;
hsd1.Init.ClockPowerSave = SDMMC_CLOCK_POWER_SAVE_DISABLE;
hsd1.Init.BusWide = SDMMC_BUS_WIDE_1B;
hsd1.Init.HardwareFlowControl = SDMMC_HARDWARE_FLOW_CONTROL_DISABLE;
hsd1.Init.ClockDiv = 0;
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
Please Help me!!!!
thank you
