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274 lines
8.3 KiB
274 lines
8.3 KiB
/**
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******************************************************************************
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* File Name : main.c
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* Description : Main program body
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******************************************************************************
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* This notice applies to any and all portions of this file
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* that are not between comment pairs USER CODE BEGIN and
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* USER CODE END. Other portions of this file, whether
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* inserted by the user or by software development tools
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* are owned by their respective copyright owners.
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*
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* Copyright (c) 2017 STMicroelectronics International N.V.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted, provided that the following conditions are met:
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*
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* 1. Redistribution of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of other
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* contributors to this software may be used to endorse or promote products
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* derived from this software without specific written permission.
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* 4. This software, including modifications and/or derivative works of this
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* software, must execute solely and exclusively on microcontroller or
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* microprocessor devices manufactured by or for STMicroelectronics.
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* 5. Redistribution and use of this software other than as permitted under
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* this license is void and will automatically terminate your rights under
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* this license.
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*
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* THIS SOFTWARE IS PROVIDED BY STMICROELECTRONICS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS, IMPLIED OR STATUTORY WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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* PARTICULAR PURPOSE AND NON-INFRINGEMENT OF THIRD PARTY INTELLECTUAL PROPERTY
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* RIGHTS ARE DISCLAIMED TO THE FULLEST EXTENT PERMITTED BY LAW. IN NO EVENT
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* SHALL STMICROELECTRONICS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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#include "stm32f0xx_hal.h"
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#include "cmsis_os.h"
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#include <stdbool.h>
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/* USER CODE BEGIN Includes */
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#include "gex_hooks.h"
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/* USER CODE END Includes */
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/* Private variables ---------------------------------------------------------*/
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/* USER CODE BEGIN PV */
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/* Private variables ---------------------------------------------------------*/
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/* USER CODE END PV */
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/* Private function prototypes -----------------------------------------------*/
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void SystemClock_Config(void);
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void MX_FREERTOS_Init(void);
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/* USER CODE BEGIN PFP */
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/* Private function prototypes -----------------------------------------------*/
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/* USER CODE END PFP */
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/* USER CODE BEGIN 0 */
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/* USER CODE END 0 */
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int main(void)
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{
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/* USER CODE BEGIN 1 */
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/* USER CODE END 1 */
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/* MCU Configuration----------------------------------------------------------*/
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/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
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HAL_Init();
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/* USER CODE BEGIN Init */
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/* USER CODE END Init */
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/* Configure the system clock */
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SystemClock_Config();
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/* USER CODE BEGIN SysInit */
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/* USER CODE END SysInit */
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/* Initialize all configured peripherals */
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GEX_PreInit();
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/* USER CODE BEGIN 2 */
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/* USER CODE END 2 */
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/* Call init function for freertos objects (in freertos.c) */
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MX_FREERTOS_Init();
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/* Start scheduler */
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osKernelStart();
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/* We should never get here as control is now taken by the scheduler */
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/* Infinite loop */
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/* USER CODE BEGIN WHILE */
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while (1)
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{
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/* USER CODE END WHILE */
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/* USER CODE BEGIN 3 */
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}
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/* USER CODE END 3 */
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}
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/** System Clock Configuration
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*/
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void SystemClock_Config(void)
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{
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RCC_OscInitTypeDef RCC_OscInitStruct;
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RCC_ClkInitTypeDef RCC_ClkInitStruct;
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RCC_PeriphCLKInitTypeDef PeriphClkInit;
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#if 0
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/**Initializes the CPU, AHB and APB busses clocks
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*/
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI48|RCC_OSCILLATORTYPE_HSE;
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RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS;
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RCC_OscInitStruct.HSI48State = RCC_HSI48_ON;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
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RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL6;
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RCC_OscInitStruct.PLL.PREDIV = RCC_PREDIV_DIV1;
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if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
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{
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_Error_Handler(__FILE__, __LINE__);
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}
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#else
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volatile uint32_t counter;
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/* Set FLASH latency */
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LL_FLASH_SetLatency(LL_FLASH_LATENCY_1);
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#if !PLAT_FULL_XTAL
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LL_RCC_HSE_EnableBypass();
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#endif
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LL_RCC_HSE_Enable();
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counter = 0;
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while(LL_RCC_HSE_IsReady() != 1 && counter < 10000) {
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counter++;
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}
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bool has_pll = 0;
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if (LL_RCC_HSE_IsReady() == 0) {
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// Looks like HSE xtal doesn't work - use HSI48
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LL_RCC_HSI48_Enable();
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while(LL_RCC_HSI48_IsReady() != 1) {}
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LL_CRS_EnableAutoTrimming(); // crystalless USB
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LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
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LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_HSI48);
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while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_HSI48) {}
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} else {
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// external 8 MHz xtal
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/* Main PLL configuration and activation */
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LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE, LL_RCC_PLL_MUL_6, LL_RCC_PREDIV_DIV_1);
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LL_RCC_PLL_Enable();
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while(LL_RCC_PLL_IsReady() != 1) {}
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/* Sysclk activation on the main PLL */
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LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
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LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);
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while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL) {}
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has_pll = true;
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}
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/* Set APB1 prescaler */
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LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_1);
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/* Update CMSIS variable (which can be updated also through SystemCoreClockUpdate function) */
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LL_SetSystemCoreClock(48000000);
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#endif
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// TODO this can be rewritten using LL while greatly reducing code size
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/**Initializes the CPU, AHB and APB busses clocks
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*/
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RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK|RCC_CLOCKTYPE_PCLK1;
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RCC_ClkInitStruct.SYSCLKSource = has_pll ? RCC_SYSCLKSOURCE_PLLCLK : RCC_SYSCLKSOURCE_HSI48;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
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if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
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{
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_Error_Handler(__FILE__, __LINE__);
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}
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PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USB;
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PeriphClkInit.UsbClockSelection = RCC_USBCLKSOURCE_HSI48;
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if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
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{
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_Error_Handler(__FILE__, __LINE__);
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}
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/**Configure the Systick interrupt time
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*/
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HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
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/**Configure the Systick
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*/
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HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
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/* SysTick_IRQn interrupt configuration */
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HAL_NVIC_SetPriority(SysTick_IRQn, 3, 0);
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}
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/* USER CODE BEGIN 4 */
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/* USER CODE END 4 */
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//
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///**
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// * @brief Period elapsed callback in non blocking mode
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// * @note This function is called when TIM1 interrupt took place, inside
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// * HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment
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// * a global variable "uwTick" used as application time base.
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// * @param htim : TIM handle
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// * @retval None
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// */
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//void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
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//{
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///* USER CODE BEGIN Callback 0 */
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//
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///* USER CODE END Callback 0 */
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// if (htim->Instance == TIM1) {
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// HAL_IncTick();
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// }
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///* USER CODE BEGIN Callback 1 */
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//
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///* USER CODE END Callback 1 */
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//}
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//
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/**
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* @}
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*/
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/**
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* @}
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*/
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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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