CustomHID_Standalone
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Outline
Includes
#include "main.h"
Private variables
USBD_Device
Private function prototypes
Private functions
main()
SystemClock_Config()
Files
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SourceVuSTM32 Libraries and SamplesCustomHID_StandaloneSrc/main.c
 
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/** ****************************************************************************** * @file USB_Device/CustomHID_Standalone/Src/main.c * @author MCD Application Team * @brief USB device Custom HID demo main file ****************************************************************************** * @attention * * Copyright (c) 2017 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" Includes /* Private typedef ----------------------------------------------------------- */ /* Private define ------------------------------------------------------------ */ /* Private macro ------------------------------------------------------------- */ /* Private variables --------------------------------------------------------- */ USBD_HandleTypeDef USBD_Device; Private variables /* Private function prototypes ----------------------------------------------- */ static void SystemClock_Config(void); Private function prototypes /* Private functions --------------------------------------------------------- */ /** * @brief Main program * @param None * @retval None *//* ... */ int main(void) { /* STM32F4xx HAL library initialization: - Configure the Flash prefetch, * instruction and Data caches - Configure the Systick to generate an * interrupt each 1 msec - Set NVIC Group Priority to 4 - Global MSP (MCU * Support Package) initialization *//* ... */ HAL_Init(); /* Configure the system clock to 168 MHz */ SystemClock_Config(); /* Init Device Library */ USBD_Init(&USBD_Device, &HID_Desc, 0); /* Add Supported Class */ USBD_RegisterClass(&USBD_Device, USBD_CUSTOM_HID_CLASS); /* Add Custom HID callbacks */ USBD_CUSTOM_HID_RegisterInterface(&USBD_Device, &USBD_CustomHID_fops); /* Start Device Process */ USBD_Start(&USBD_Device); /* Run Application (Interrupt mode) */ while (1) { }while (1) { ... } }{ ... } /** * @brief System Clock Configuration * The system Clock is configured as follow : * System Clock source = PLL (HSE) * SYSCLK(Hz) = 168000000 * HCLK(Hz) = 168000000 * AHB Prescaler = 1 * APB1 Prescaler = 4 * APB2 Prescaler = 2 * HSE Frequency(Hz) = 25000000 * PLL_M = 25 * PLL_N = 336 * PLL_P = 2 * PLL_Q = 7 * VDD(V) = 3.3 * Main regulator output voltage = Scale1 mode * Flash Latency(WS) = 5 * @param None * @retval None *//* ... */ static void SystemClock_Config(void) { RCC_OscInitTypeDef RCC_OscInitStruct; RCC_ClkInitTypeDef RCC_ClkInitStruct; /* Enable Power Control clock */ __HAL_RCC_PWR_CLK_ENABLE(); /* The voltage scaling allows optimizing the power consumption when the * device is clocked below the maximum system frequency, to update the * voltage scaling value regarding system frequency refer to product * datasheet. *//* ... */ __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1); /* Configure RCC Oscillators: All parameters can be changed according to * user�s needs *//* ... */ 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 = 25; RCC_OscInitStruct.PLL.PLLN = 336; RCC_OscInitStruct.PLL.PLLP = 2; RCC_OscInitStruct.PLL.PLLQ = 7; HAL_RCC_OscConfig(&RCC_OscInitStruct); /* RCC Clocks: All parameters can be changed according to user�s needs */ 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; HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5); }{ ... } #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) { }while (1) { ... } }assert_failed (uint8_t * file, uint32_t line) { ... } /* ... */#endifPrivate functions
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