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STM32CubeF7/Projects/STM32F722ZE-Nucleo/Applications/USB_Host/MSC_Standalone/Src/main.c

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/**
******************************************************************************
* @file USB_Host/MSC_Standalone/Src/main.c
* @author MCD Application Team
* @brief USB host Mass storage demo main file
******************************************************************************
* @attention
*
* Copyright (c) 2016 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------ */
#include "main.h"
/* Private typedef ----------------------------------------------------------- */
typedef enum
{
SHIELD_NOT_DETECTED = 0,
SHIELD_DETECTED
} ShieldStatus;
/* Private define ------------------------------------------------------------ */
/* Private macro ------------------------------------------------------------- */
/* Private variables --------------------------------------------------------- */
USBH_HandleTypeDef hUSBHost;
MSC_ApplicationTypeDef Appli_state = APPLICATION_IDLE;
char USBDISKPath[4]; /* USB Host logical drive path */
/* Private function prototypes -----------------------------------------------*/
static void MPU_Config(void);
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 CPU_CACHE_Enable(void);
static void Error_Handler(void);
/* Private functions --------------------------------------------------------- */
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/* Configure the MPU attributes */
MPU_Config();
/* Enable the CPU Cache */
CPU_CACHE_Enable();
/* STM32F7xx HAL library initialization */
HAL_Init();
/* Configure the System clock to have a frequency of 216 MHz */
SystemClock_Config();
/* Check the availability of adafruit 1.8" TFT shield on top of STM32NUCLEO
* board. This is done by reading the state of IO PF.03 pin (mapped to
* JoyStick available on adafruit 1.8" TFT shield). If the state of PF.03 is
* high then the adafruit 1.8" TFT shield is available. */
if (TFT_ShieldDetect() != SHIELD_DETECTED)
{
Error_Handler();
}
/* Init MSC Application */
MSC_InitApplication();
/* Init Host Library */
USBH_Init(&hUSBHost, USBH_UserProcess, 0);
/* Add Supported Class */
USBH_RegisterClass(&hUSBHost, USBH_MSC_CLASS);
/* Start Host Process */
USBH_Start(&hUSBHost);
/* Run Application (Blocking mode) */
while (1)
{
/* USB Host Background task */
USBH_Process(&hUSBHost);
/* MSC Menu Process */
MSC_MenuProcess();
/* MSC Joystick */
MSC_Joysticky();
}
}
/**
* @brief MSC application Init.
* @param None
* @retval None
*/
static void MSC_InitApplication(void)
{
/* Configure user Button */
BSP_PB_Init(BUTTON_USER, BUTTON_MODE_GPIO);
/* Configure Joystick in EXTI mode */
BSP_JOY_Init();
/* Initialize the LCD */
BSP_LCD_Init();
/* Init the LCD Log module */
LCD_LOG_Init();
LCD_LOG_SetHeader((uint8_t *) "OTG FS MSC Host");
LCD_UsrLog("USBH library started.\n");
/* Initialize menu and MSC process */
Menu_Init();
}
/**
* @brief User Process
* @param phost: Host Handle
* @param id: Host Library user message ID
* @retval None
*/
static void USBH_UserProcess(USBH_HandleTypeDef * phost, uint8_t id)
{
switch (id)
{
case HOST_USER_SELECT_CONFIGURATION:
break;
case HOST_USER_DISCONNECTION:
Appli_state = APPLICATION_DISCONNECT;
if (f_mount(NULL, "", 0) != FR_OK)
{
LCD_ErrLog("ERROR : Cannot DeInitialize FatFs! \n");
}
if (FATFS_UnLinkDriver(USBDISKPath) != 0)
{
LCD_ErrLog("ERROR : Cannot UnLink FatFS Driver! \n");
}
break;
case HOST_USER_CLASS_ACTIVE:
Appli_state = APPLICATION_READY;
break;
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");
}
}
break;
default:
break;
}
}
/**
* @brief This function provides accurate delay (in milliseconds) based
* on SysTick counter flag.
* @note This function is declared as __weak to be overwritten in case of other
* implementations in user file.
* @param Delay: specifies the delay time length, in milliseconds.
* @retval None
*/
void HAL_Delay(__IO uint32_t Delay)
{
while (Delay)
{
if (SysTick->CTRL & SysTick_CTRL_COUNTFLAG_Msk)
{
Delay--;
}
}
}
/**
* @brief System Clock Configuration
* The system Clock is configured as follow :
* System Clock source = PLL (HSE)
* SYSCLK(Hz) = 216000000
* HCLK(Hz) = 216000000
* AHB Prescaler = 1
* APB1 Prescaler = 4
* APB2 Prescaler = 2
* HSE Frequency(Hz) = 8000000
* PLL_M = 8
* PLL_N = 432
* PLL_P = 2
* PLL_Q = 9
* VDD(V) = 3.3
* Main regulator output voltage = Scale1 mode
* Flash Latency(WS) = 7
* @param None
* @retval None
*/
static void SystemClock_Config(void)
{
RCC_ClkInitTypeDef RCC_ClkInitStruct;
RCC_OscInitTypeDef RCC_OscInitStruct;
/* Enable HSE Oscillator and activate PLL with HSE as source */
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS;
RCC_OscInitStruct.HSIState = RCC_HSI_OFF;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 432;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 9;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
while (1)
{
};
}
/* Activate the OverDrive to reach the 216 Mhz Frequency */
if (HAL_PWREx_EnableOverDrive() != HAL_OK)
{
while (1)
{
};
}
/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
* clocks dividers */
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_DIV4;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_7) != HAL_OK)
{
while (1)
{
};
}
}
/**
* @brief Check the availability of adafruit 1.8" TFT shield on top of STM32NUCLEO
* board. This is done by reading the state of IO PF.03 pin (mapped to
* JoyStick available on adafruit 1.8" TFT shield). If the state of PF.03
* is high then the adafruit 1.8" TFT shield is available.
* @param None
* @retval SHIELD_DETECTED: 1.8" TFT shield is available
* SHIELD_NOT_DETECTED: 1.8" TFT shield is not available
*/
static ShieldStatus TFT_ShieldDetect(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
/* Enable GPIO clock */
NUCLEO_ADCx_GPIO_CLK_ENABLE();
GPIO_InitStruct.Pin = NUCLEO_ADCx_GPIO_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_PULLDOWN;
HAL_GPIO_Init(NUCLEO_ADCx_GPIO_PORT, &GPIO_InitStruct);
if (HAL_GPIO_ReadPin(NUCLEO_ADCx_GPIO_PORT, NUCLEO_ADCx_GPIO_PIN) != 0)
{
return SHIELD_DETECTED;
}
else
{
return SHIELD_NOT_DETECTED;
}
}
/**
* @brief This function is executed in case of error occurrence.
* @param None
* @retval None
*/
static void Error_Handler(void)
{
/* User may add here some code to deal with this error */
while (1)
{
}
}
/**
* @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();
}
/**
* @brief Configure the MPU attributes
* @param None
* @retval None
*/
static void MPU_Config(void)
{
MPU_Region_InitTypeDef MPU_InitStruct;
/* Disable the MPU */
HAL_MPU_Disable();
/* Configure the MPU as Strongly ordered for not defined regions */
MPU_InitStruct.Enable = MPU_REGION_ENABLE;
MPU_InitStruct.BaseAddress = 0x00;
MPU_InitStruct.Size = MPU_REGION_SIZE_4GB;
MPU_InitStruct.AccessPermission = MPU_REGION_NO_ACCESS;
MPU_InitStruct.IsBufferable = MPU_ACCESS_NOT_BUFFERABLE;
MPU_InitStruct.IsCacheable = MPU_ACCESS_NOT_CACHEABLE;
MPU_InitStruct.IsShareable = MPU_ACCESS_SHAREABLE;
MPU_InitStruct.Number = MPU_REGION_NUMBER0;
MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL0;
MPU_InitStruct.SubRegionDisable = 0x87;
MPU_InitStruct.DisableExec = MPU_INSTRUCTION_ACCESS_DISABLE;
HAL_MPU_ConfigRegion(&MPU_InitStruct);
/* Enable the MPU */
HAL_MPU_Enable(MPU_PRIVILEGED_DEFAULT);
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t * file, uint32_t line)
{
/* User can add his own implementation to report the file name and line
* number, ex: printf("Wrong parameters value: file %s on line %d\r\n", file,
* line) */
/* Infinite loop */
while (1)
{
}
}
#endif
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