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/* ... */
#include "main.h"
Includes
typedef enum
{
SHIELD_NOT_DETECTED = 0,
SHIELD_DETECTED
...}ShieldStatus;
Private typedef
FATFS SDFatFs;
FIL MyFile;
char SDPath[4];
static uint8_t buffer[_MAX_SS];
Private variables
static void SystemClock_Config(void);
static ShieldStatus TFT_ShieldDetect(void);
static void Error_Handler(void);
Private function prototypes
/* ... */
int main(void)
{
FRESULT res;
uint32_t byteswritten, bytesread;
uint8_t wtext[] = "This is STM32 working with FatFs";
uint8_t rtext[100];
/* ... */
HAL_Init();
SystemClock_Config();
/* ... */
if(TFT_ShieldDetect() != SHIELD_DETECTED)
{
Error_Handler();
}if (TFT_ShieldDetect() != SHIELD_DETECTED) { ... }
BSP_LED_Init(LED_BLUE);
BSP_LED_Init(LED_RED);
if(FATFS_LinkDriver(&SD_Driver, SDPath) == 0)
{
if(f_mount(&SDFatFs, (TCHAR const*)SDPath, 0) != FR_OK)
{
BSP_LED_On(LED_RED);
Error_Handler();
}if (f_mount(&SDFatFs, (TCHAR const*)SDPath, 0) != FR_OK) { ... }
else
{
if(f_mkfs((TCHAR const*)SDPath, FM_ANY, 0, buffer, sizeof(buffer)) != FR_OK)
{
BSP_LED_On(LED_RED);
Error_Handler();
}if (f_mkfs((TCHAR const*)SDPath, FM_ANY, 0, buffer, sizeof(buffer)) != FR_OK) { ... }
else
{
if(f_open(&MyFile, "STM32.TXT", FA_CREATE_ALWAYS | FA_WRITE) != FR_OK)
{
BSP_LED_On(LED_RED);
Error_Handler();
}if (f_open(&MyFile, "STM32.TXT", FA_CREATE_ALWAYS | FA_WRITE) != FR_OK) { ... }
else
{
res = f_write(&MyFile, wtext, sizeof(wtext), (void *)&byteswritten);
if((byteswritten == 0) || (res != FR_OK))
{
BSP_LED_On(LED_RED);
Error_Handler();
}if ((byteswritten == 0) || (res != FR_OK)) { ... }
else
{
f_close(&MyFile);
if(f_open(&MyFile, "STM32.TXT", FA_READ) != FR_OK)
{
BSP_LED_On(LED_RED);
Error_Handler();
}if (f_open(&MyFile, "STM32.TXT", FA_READ) != FR_OK) { ... }
else
{
res = f_read(&MyFile, rtext, sizeof(rtext), (UINT*)&bytesread);
if((bytesread == 0) || (res != FR_OK))
{
BSP_LED_On(LED_RED);
Error_Handler();
...}
else
{
f_close(&MyFile);
if ((bytesread != byteswritten))
{
BSP_LED_On(LED_RED);
Error_Handler();
}if ((bytesread != byteswritten)) { ... }
else
{
BSP_LED_On(LED_BLUE);
}else { ... }
}else { ... }
}else { ... }
}else { ... }
}else { ... }
}else { ... }
}else { ... }
}if (FATFS_LinkDriver(&SD_Driver, SDPath) == 0) { ... }
FATFS_UnLinkDriver(SDPath);
while (1)
{
}while (1) { ... }
}{ ... }
/* ... */
static void SystemClock_Config(void)
{
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_OscInitTypeDef RCC_OscInitStruct;
HAL_StatusTypeDef ret = HAL_OK;
__HAL_RCC_PWR_CLK_ENABLE();
/* ... */
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 200;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 7;
RCC_OscInitStruct.PLL.PLLR = 2;
ret = HAL_RCC_OscConfig(&RCC_OscInitStruct);
if(ret != HAL_OK)
{
Error_Handler();
}if (ret != HAL_OK) { ... }
/* ... */
RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | 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;
ret = HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3);
if(ret != HAL_OK)
{
Error_Handler();
}if (ret != HAL_OK) { ... }
}{ ... }
/* ... */
static ShieldStatus TFT_ShieldDetect(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
__HAL_RCC_GPIOC_CLK_ENABLE();
GPIO_InitStruct.Pin = GPIO_PIN_1;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_PULLDOWN;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
if(HAL_GPIO_ReadPin(GPIOC, GPIO_PIN_1) != 0)
{
return SHIELD_DETECTED;
}if (HAL_GPIO_ReadPin(GPIOC, GPIO_PIN_1) != 0) { ... }
else
{
return SHIELD_NOT_DETECTED;
}else { ... }
}{ ... }
/* ... */
static void Error_Handler(void)
{
while(1)
{
}while (1) { ... }
}{ ... }
#ifdef USE_FULL_ASSERT
/* ... */
void assert_failed(uint8_t* file, uint32_t line)
{
/* ... */
while (1)
{
}while (1) { ... }
}assert_failed (uint8_t* file, uint32_t line) { ... }
/* ... */#endifPrivate functions