136 lines
4.0 KiB
C
136 lines
4.0 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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* 2017-10-20 ZYH emmm...setup for HAL Libraries
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* 2017-11-15 ZYH update to 3.0.0
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*/
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#include <rthw.h>
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#include <rtthread.h>
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#include "board.h"
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/**
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* @addtogroup STM32
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*/
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/*@{*/
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void HAL_MspInit(void)
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{
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HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
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/* System interrupt init*/
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__HAL_RCC_AFIO_CLK_ENABLE();
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/* MemoryManagement_IRQn interrupt configuration */
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HAL_NVIC_SetPriority(MemoryManagement_IRQn, 0, 0);
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/* BusFault_IRQn interrupt configuration */
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HAL_NVIC_SetPriority(BusFault_IRQn, 0, 0);
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/* UsageFault_IRQn interrupt configuration */
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HAL_NVIC_SetPriority(UsageFault_IRQn, 0, 0);
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/* SVCall_IRQn interrupt configuration */
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HAL_NVIC_SetPriority(SVCall_IRQn, 0, 0);
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/* DebugMonitor_IRQn interrupt configuration */
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HAL_NVIC_SetPriority(DebugMonitor_IRQn, 0, 0);
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/* PendSV_IRQn interrupt configuration */
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HAL_NVIC_SetPriority(PendSV_IRQn, 15, 0);
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/* SysTick_IRQn interrupt configuration */
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HAL_NVIC_SetPriority(SysTick_IRQn, 15, 0);
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/**DISABLE: JTAG-DP Disabled and SW-DP Disabled**/
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__HAL_AFIO_REMAP_SWJ_NOJTAG();
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}
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void SystemClock_Config(void)
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{
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rt_err_t result;
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RCC_OscInitTypeDef RCC_OscInitStruct;
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RCC_ClkInitTypeDef RCC_ClkInitStruct;
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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_HSE;
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RCC_OscInitStruct.HSEState = RCC_HSE_ON;
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RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
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RCC_OscInitStruct.HSIState = RCC_HSI_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_MUL9;
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result = HAL_RCC_OscConfig(&RCC_OscInitStruct);
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RT_ASSERT(result == HAL_OK);
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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 | 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_DIV2;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
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result = HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2);
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RT_ASSERT(result == HAL_OK);
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/**Configure the Systick interrupt time
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*/
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HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq() / RT_TICK_PER_SECOND);
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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, 15, 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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HAL_IncTick();
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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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/**
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* This function will initial STM32 board.
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*/
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void rt_hw_board_init(void)
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{
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HAL_Init();
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SystemClock_Config();
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#ifdef RT_USING_HEAP
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rt_system_heap_init((void *)HEAP_BEGIN, (void *)HEAP_END);
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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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#ifdef RT_USING_CONSOLE
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rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
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#endif
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}
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/**
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* This function will delay for some us.
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*
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* @param us the delay time of us
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*/
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void rt_hw_us_delay(rt_uint32_t us)
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{
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rt_uint32_t delta;
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us = us * (SysTick->LOAD / (1000000 / RT_TICK_PER_SECOND));
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delta = SysTick->VAL;
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if (delta < us)
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{
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/* wait current OSTick left time gone */
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while (SysTick->VAL < us);
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us -= delta;
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delta = SysTick->LOAD;
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}
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while (delta - SysTick->VAL < us);
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}
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