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69 lines
1.4 KiB
69 lines
1.4 KiB
2 days ago
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/*
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* bsp_TIMER.c
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*
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* Created on: Oct 26, 2023
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* Author: shiya
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*/
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#include "bsp_TIMER.h"
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#include "bsp_mqtt.h"
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//返回值：：1-正常；0-错误
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uint8_t GF_BSP_TIMER_Init()
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{
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HAL_TIM_Base_Start_IT(&htim1);
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HAL_TIM_Base_Start_IT(&htim8);
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return 1;
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}
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void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
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{
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//100ms - WatchDog
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if(htim->Instance == TIM1)//APB2=200Mhz,htim1.Init.Prescaler = 2000-1;htim1.Init.Period = 10000-1; TIM1=100ms
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{
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GF_BSP_Interrupt_Run_CallBack(DF_BSP_InterCall_TIM1_100ms_PeriodElapsedCallback);
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}
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//2ms - MainLoop
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if(htim->Instance == TIM8)//APB2=200Mhz,htim8.Init.Prescaler = 2000-1;htim8.Init.Period = 200-1; TIM8=2ms
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{
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GF_BSP_Interrupt_Run_CallBack(DF_BSP_InterCall_TIM8_2ms_PeriodElapsedCallback);
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//bsp_mqtt_test();
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}
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}
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void GF_BSP_TIMER_DelayUS(uint32_t n)
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{
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uint32_t ticks;
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uint32_t told;
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uint32_t tnow;
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uint32_t tcnt = 0;
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uint32_t reload;
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reload = SysTick->LOAD;
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ticks = n * (SystemCoreClock / 1000000);
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tcnt = 0;
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told = SysTick->VAL;
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while (1)
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{
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tnow = SysTick->VAL;
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if (tnow != told)
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{
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if (tnow < told)
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{
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tcnt += told - tnow;
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}
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else
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{
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tcnt += reload - tnow + told;
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}
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told = tnow;
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if (tcnt >= ticks)
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{
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break;
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}
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}
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}
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}
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