/****************************************************************************
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* Copyright: (C)2018 Î人ÁèÔÆÎïÍøÖÇ¿ÆʵÑéÊÒ www.iot-yun.com
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* Author: GuoWenxue<guowenxue@gmail.com> QQ: 281143292
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* Description: STM32L151C8T6 CubeMX ¿ª·¢°å FreeRTOS API
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*
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* ChangeLog:
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* °æ±¾ºÅ ÈÕÆÚ ×÷Õß ËµÃ÷
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* V1.0.0 2018.11.05 GuoWenxue ·¢²¼¸Ã°æ±¾
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****************************************************************************/
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#include "stm32l1xx.h"
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#include "stm32_vport.h"
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unsigned long ulTIM6_OverflowCount = 0UL;
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void prvSetupHardware( void )
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{
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init_led_gpio();
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//init_keys_interrupt();
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stm32_init_printf(USART_PORT1, 115200);
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}
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void vConfigureTimerForRunTimeStats( void )
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{
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TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
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NVIC_InitTypeDef NVIC_InitStructure;
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/* The time base for the run time stats is generated by the 16 bit timer 6.
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Each time the timer overflows ulTIM6_OverflowCount is incremented.
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Therefore, when converting the total run time to a 32 bit number, the most
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significant two bytes are given by ulTIM6_OverflowCount and the least
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significant two bytes are given by the current TIM6 counter value. Care
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must be taken with data consistency when combining the two in case a timer
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overflow occurs as the value is being read.
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The portCONFIGURE_TIMER_FOR_RUN_TIME_STATS() macro (in FreeRTOSConfig.h) is
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defined to call this function, so the kernel will call this function
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automatically at the appropriate time. */
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/* TIM6 clock enable */
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RCC_APB1PeriphClockCmd( RCC_APB1Periph_TIM6, ENABLE );
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/* The 32MHz clock divided by 5000 should tick (very) approximately every
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150uS and overflow a 16bit timer (very) approximately every 10 seconds. */
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TIM_TimeBaseStructure.TIM_Period = 65535;
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TIM_TimeBaseStructure.TIM_Prescaler = 5000;
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TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;
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TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
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TIM_TimeBaseInit( TIM6, &TIM_TimeBaseStructure );
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/* Only interrupt on overflow events. */
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TIM6->CR1 |= TIM_CR1_URS;
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/* Enable the interrupt. */
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TIM_ITConfig( TIM6, TIM_IT_Update, ENABLE );
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/* Enable the TIM6 global Interrupt */
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NVIC_InitStructure.NVIC_IRQChannel = TIM6_IRQn;
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NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = configLIBRARY_LOWEST_INTERRUPT_PRIORITY;
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NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0x00; /* Not used as 4 bits are used for the pre-emption priority. */
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NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
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NVIC_Init(&NVIC_InitStructure);
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TIM_ClearITPendingBit( TIM6, TIM_IT_Update );
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TIM_Cmd( TIM6, ENABLE );
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}
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/*-----------------------------------------------------------*/
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void TIM6_IRQHandler( void )
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{
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/* Interrupt handler for TIM 6
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The time base for the run time stats is generated by the 16 bit timer 6.
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Each time the timer overflows ulTIM6_OverflowCount is incremented.
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Therefore, when converting the total run time to a 32 bit number, the most
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significant two bytes are given by ulTIM6_OverflowCount and the least
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significant two bytes are given by the current TIM6 counter value. Care
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must be taken with data consistency when combining the two in case a timer
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overflow occurs as the value is being read. */
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if( TIM_GetITStatus( TIM6, TIM_IT_Update) != RESET)
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{
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ulTIM6_OverflowCount++;
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TIM_ClearITPendingBit( TIM6, TIM_IT_Update );
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}
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}
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/*-----------------------------------------------------------*/
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void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName )
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{
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( void ) pcTaskName;
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( void ) pxTask;
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/* Run time stack overflow checking is performed if
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configconfigCHECK_FOR_STACK_OVERFLOW is defined to 1 or 2. This hook
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function is called if a stack overflow is detected. */
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for( ;; );
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}
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/*-----------------------------------------------------------*/
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void vApplicationMallocFailedHook( void )
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{
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/* Called if a call to pvPortMalloc() fails because there is insufficient
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free memory available in the FreeRTOS heap. pvPortMalloc() is called
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internally by FreeRTOS API functions that create tasks, queues or
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semaphores. */
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for( ;; );
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}
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/*-----------------------------------------------------------*/
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void vApplicationIdleHook( void )
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{
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/* Called on each iteration of the idle task. In this case the idle task
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just enters a low(ish) power mode. */
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PWR_EnterSleepMode( PWR_Regulator_ON, PWR_SLEEPEntry_WFI );
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}
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#if 0
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void vApplicationTickHook( void )
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{
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static unsigned long ulCounter = 0;
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static const unsigned long ulCheckFrequency = 5000UL / portTICK_PERIOD_MS;
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/* This is called from within the tick interrupt and performs the 'check'
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functionality as described in the comments at the top of this file.
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Is it time to perform the 'check' functionality again? */
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ulCounter++;
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if( ulCounter >= ulCheckFrequency )
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{
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ulCounter = 0;
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}
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}
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#endif
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/*-----------------------------------------------------------*/
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