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/* ... */
#include "main.h"
Includes
typedef enum
{
SHIELD_NOT_DETECTED = 0,
SHIELD_DETECTED
...}ShieldStatus;
Private typedef
USBH_HandleTypeDef hUSBHost;
MSC_ApplicationTypeDef Appli_state = APPLICATION_IDLE;
char USBDISKPath[4];
Private variables
static void SystemClock_Config(void);
static ShieldStatus TFT_ShieldDetect(void);
static void USBH_UserProcess(USBH_HandleTypeDef *phost, uint8_t id);
static void MSC_InitApplication(void);
static void Error_Handler(void);
Private function prototypes
/* ... */
int main(void)
{
HAL_Init();
SystemClock_Config();
/* ... */
if(TFT_ShieldDetect() != SHIELD_DETECTED)
{
Error_Handler();
}if (TFT_ShieldDetect() != SHIELD_DETECTED) { ... }
MSC_InitApplication();
USBH_Init(&hUSBHost, USBH_UserProcess, 0);
USBH_RegisterClass(&hUSBHost, USBH_MSC_CLASS);
USBH_Start(&hUSBHost);
while (1)
{
USBH_Process(&hUSBHost);
MSC_MenuProcess();
}while (1) { ... }
}{ ... }
/* ... */
static void MSC_InitApplication(void)
{
BSP_PB_Init(BUTTON_USER, BUTTON_MODE_GPIO);
BSP_LCD_Init();
LCD_LOG_Init();
LCD_LOG_SetHeader((uint8_t *)"OTG FS MSC Host");
LCD_UsrLog("USBH library started.\n");
USBH_UsrLog("Starting MSC Demo");
Menu_Init();
}{ ... }
/* ... */
static void USBH_UserProcess(USBH_HandleTypeDef *phost, uint8_t id)
{
switch(id)
{
case HOST_USER_SELECT_CONFIGURATION:
break;
case HOST_USER_SELECT_CONFIGURATION:
case HOST_USER_DISCONNECTION:
Appli_state = APPLICATION_DISCONNECT;
if(f_mount(NULL, "", 0) != FR_OK)
{
LCD_ErrLog("ERROR : Cannot DeInitialize FatFs! \n");
}if (f_mount(NULL, "", 0) != FR_OK) { ... }
if (FATFS_UnLinkDriver(USBDISKPath) != 0)
{
LCD_ErrLog("ERROR : Cannot UnLink USB FatFS Driver! \n");
}if (FATFS_UnLinkDriver(USBDISKPath) != 0) { ... }
break;
case HOST_USER_DISCONNECTION:
case HOST_USER_CLASS_ACTIVE:
Appli_state = APPLICATION_READY;
break;
case HOST_USER_CLASS_ACTIVE:
case HOST_USER_CONNECTION:
if (FATFS_LinkDriver(&USBH_Driver, USBDISKPath) == 0)
{
if (f_mount(&USBH_fatfs, "", 0) != FR_OK)
{
LCD_ErrLog("ERROR : Cannot Initialize FatFs! \n");
}if (f_mount(&USBH_fatfs, "", 0) != FR_OK) { ... }
}if (FATFS_LinkDriver(&USBH_Driver, USBDISKPath) == 0) { ... }
break;
case HOST_USER_CONNECTION:
default:
break;default
}switch (id) { ... }
}{ ... }
/* ... */
void HAL_Delay(__IO uint32_t Delay)
{
while(Delay)
{
if (SysTick->CTRL & SysTick_CTRL_COUNTFLAG_Msk)
{
Delay--;
}if (SysTick->CTRL & SysTick_CTRL_COUNTFLAG_Msk) { ... }
}while (Delay) { ... }
}{ ... }
/* ... */
static void SystemClock_Config(void)
{
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct;
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) { ... }
PeriphClkInitStruct.PLLI2S.PLLI2SM = 8;
PeriphClkInitStruct.PLLI2S.PLLI2SQ = 4;
PeriphClkInitStruct.PLLI2S.PLLI2SN = 192;
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_CK48;
PeriphClkInitStruct.Clk48ClockSelection = RCC_CK48CLKSOURCE_PLLI2SQ;
HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
/* ... */
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