158 lines
3.7 KiB
C
158 lines
3.7 KiB
C
/*
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* File : board.c
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2009 RT-Thread Develop Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rt-thread.org/license/LICENSE
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*
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* Change Logs:
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* Date Author Notes
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* 2009-01-05 Bernard first implementation
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*/
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#include <stdint.h>
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#include <rthw.h>
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#include <rtthread.h>
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#include <stm32l4xx.h>
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#include "board.h"
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#include "usart.h"
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#include "stm32l4xx_hal.h"
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void _init(void)
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{
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}
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/**
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* @brief This function is executed in case of error occurrence.
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* @param None
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* @retval None
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*/
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void Error_Handler(void)
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{
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/* USER CODE BEGIN Error_Handler */
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/* User can add his own implementation to report the HAL error return state */
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while(1)
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{
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}
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/* USER CODE END Error_Handler */
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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_ClkInitTypeDef RCC_ClkInitStruct = {0};
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RCC_OscInitTypeDef RCC_OscInitStruct = {0};
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/* MSI is enabled after System reset, activate PLL with MSI as source */
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI;
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RCC_OscInitStruct.MSIState = RCC_MSI_ON;
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RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_6;
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RCC_OscInitStruct.MSICalibrationValue = RCC_MSICALIBRATION_DEFAULT;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_MSI;
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RCC_OscInitStruct.PLL.PLLM = 1;
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RCC_OscInitStruct.PLL.PLLN = 40;
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RCC_OscInitStruct.PLL.PLLR = 2;
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RCC_OscInitStruct.PLL.PLLP = 7;
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RCC_OscInitStruct.PLL.PLLQ = 4;
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if(HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
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{
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/* Initialization Error */
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Error_Handler();
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}
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/* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2
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clocks dividers */
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RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2);
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
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if(HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK)
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{
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/* Initialization Error */
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Error_Handler();
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}
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HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/RT_TICK_PER_SECOND);
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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, 0, 0);
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}
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/**
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* This is the timer interrupt service routine.
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*
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*/
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void SysTick_Handler(void)
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{
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/* enter interrupt */
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rt_interrupt_enter();
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rt_tick_increase();
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/* leave interrupt */
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rt_interrupt_leave();
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}
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/* re-implement tick interface for STM32 HAL */
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HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority)
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{
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/* Return function status */
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return HAL_OK;
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}
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uint32_t HAL_GetTick(void)
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{
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return rt_tick_get() * 1000 / RT_TICK_PER_SECOND;
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}
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void HAL_SuspendTick(void)
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{
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}
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void HAL_ResumeTick(void)
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{
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}
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void HAL_Delay(__IO uint32_t Delay)
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{
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}
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/**
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* This function will initial STM32 board.
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*/
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void rt_hw_board_init()
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{
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/* NVIC Configuration */
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#define NVIC_VTOR_MASK 0x3FFFFF80
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#ifdef VECT_TAB_RAM
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/* Set the Vector Table base location at 0x10000000 */
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SCB->VTOR = (0x10000000 & NVIC_VTOR_MASK);
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#else /* VECT_TAB_FLASH */
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/* Set the Vector Table base location at 0x08000000 */
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SCB->VTOR = (0x08000000 & NVIC_VTOR_MASK);
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#endif
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HAL_Init();
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SystemClock_Config();
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stm32_hw_usart_init();
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#ifdef RT_USING_CONSOLE
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rt_console_set_device(CONSOLE_DEVICE);
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#endif
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#ifdef RT_USING_COMPONENTS_INIT
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rt_components_board_init();
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#endif
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}
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/*@}*/
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