2021年06月25日 | STM32高分辨率定时器(HRTIM)使用笔记

简介：STM32高分辨率功能非常强大，寄存器数量非常多，使用起来也比较麻烦，本文使用HRTIM1产生一组互补输出的PWM。

高分辨率定时器的初始化比普通定时器要复杂得多，

HRTIM_OutputCfgTypeDef HRTIM_TIM_OutputStructure;//配置输出特性，高低电平等

HRTIM_BaseInitTypeDef HRTIM_BaseInitStructure;//配置基本参数，这部分和普通定时器一样

HRTIM_TimerInitTypeDef HRTIM_TimerInitStructure; //配置不同模式

HRTIM_TimerCfgTypeDef HRTIM_TimerWaveStructure;//配置波形参数，错误等

HRTIM_CompareCfgTypeDef HRTIM_CompareStructure;//配置比较寄存器

用以上几个部分就能产生最简单的PWM波形

HRTIM_DeadTimeCfgTypeDef HRTIM_DeadtimeStructure;//配置死区时间和性质

HRTIM_FaultCfgTypeDef HRTIM_FaultCfgStructure;//配置错误输入

HRTIM_ADCTriggerCfgTypeDef HRTIM_ADCTrigStructure; //配置ADC触发信号

HRTIM_BurstModeCfgTypeDef HRTIM_BurstStructure;//配置Burst模式

等等，还有很多初始化参数和初始化函数，基本分为简单基本功能相关函数，波形相关，输出相关，中断、DMA等模块；

下面的程序用HRTIM产生一组简单的PWM波形，50%占空比，无死区

#define PERIOD 46080 //100k频率，PERIOD=4.608G/100k

void HRTIM_Config(void)

{

HRTIM_OutputCfgTypeDef HRTIM_TIM_OutputStructure;

HRTIM_BaseInitTypeDef HRTIM_BaseInitStructure;

HRTIM_TimerInitTypeDef HRTIM_TimerInitStructure;

HRTIM_TimerCfgTypeDef HRTIM_TimerWaveStructure;

HRTIM_CompareCfgTypeDef HRTIM_CompareStructure;

HRTIM_DeadTimeCfgTypeDef HRTIM_DeadtimeStructure;

RCC_HRTIM1CLKConfig(RCC_HRTIM1CLK_PLLCLK);

RCC_APB2PeriphClockCmd(RCC_APB2Periph_HRTIM1,ENABLE);

HRTIM_DLLCalibrationStart(HRTIM1, HRTIM_CALIBRATIONRATE_14);

HRTIM1_COMMON->DLLCR |= HRTIM_DLLCR_CALEN;

while(HRTIM_GetCommonFlagStatus(HRTIM1, HRTIM_ISR_DLLRDY) == RESET);

GPIO_HRTIM_outputs_Config();

HRTIM_BaseInitStructure.Mode=HRTIM_MODE_CONTINOUS;

HRTIM_BaseInitStructure.Period=PERIOD;

HRTIM_BaseInitStructure.PrescalerRatio=HRTIM_PRESCALERRATIO_MUL32;

HRTIM_BaseInitStructure.RepetitionCounter=0x00;

//HRTIM_SimpleBase_Init(HRTIM1,HRTIM_TIMERINDEX_TIMER_D,&HRTIM_BaseInitStructure);

HRTIM_TimerInitStructure.HalfModeEnable = HRTIM_HALFMODE_DISABLED;

HRTIM_TimerInitStructure.StartOnSync = HRTIM_SYNCSTART_DISABLED;

HRTIM_TimerInitStructure.ResetOnSync = HRTIM_SYNCRESET_DISABLED;

HRTIM_TimerInitStructure.DACSynchro = HRTIM_DACSYNC_NONE;

HRTIM_TimerInitStructure.PreloadEnable = HRTIM_PRELOAD_ENABLED;

HRTIM_TimerInitStructure.UpdateGating = HRTIM_UPDATEGATING_INDEPENDENT;

HRTIM_TimerInitStructure.BurstMode = HRTIM_TIMERBURSTMODE_MAINTAINCLOCK;

HRTIM_TimerInitStructure.RepetitionUpdate = HRTIM_UPDATEONREPETITION_ENABLED;

HRTIM_Waveform_Init(HRTIM1,HRTIM_TIMERINDEX_TIMER_D,&HRTIM_BaseInitStructure,&HRTIM_TimerInitStructure);

HRTIM_TimerWaveStructure.DeadTimeInsertion=HRTIM_TIMDEADTIMEINSERTION_ENABLED;

HRTIM_TimerWaveStructure.DelayedProtectionMode = HRTIM_TIMDELAYEDPROTECTION_DISABLED;

HRTIM_TimerWaveStructure.FaultEnable = HRTIM_TIMFAULTENABLE_NONE;

HRTIM_TimerWaveStructure.FaultLock = HRTIM_TIMFAULTLOCK_READWRITE;

HRTIM_TimerWaveStructure.PushPull = HRTIM_TIMPUSHPULLMODE_DISABLED;

HRTIM_TimerWaveStructure.ResetTrigger = HRTIM_TIMRESETTRIGGER_NONE;

HRTIM_TimerWaveStructure.ResetUpdate = HRTIM_TIMUPDATEONRESET_DISABLED;

HRTIM_TimerWaveStructure.UpdateTrigger = HRTIM_TIMUPDATETRIGGER_NONE;

HRTIM_WaveformTimerConfig(HRTIM1,HRTIM_TIMERINDEX_TIMER_D,&HRTIM_TimerWaveStructure);

HRTIM_TIM_OutputStructure.Polarity=HRTIM_OUTPUTPOLARITY_HIGH;

HRTIM_TIM_OutputStructure.SetSource=HRTIM_OUTPUTSET_TIMPER;

HRTIM_TIM_OutputStructure.ResetSource=HRTIM_OUTPUTRESET_TIMCMP1;

HRTIM_TIM_OutputStructure.IdleMode = HRTIM_OUTPUTIDLEMODE_NONE;

HRTIM_TIM_OutputStructure.IdleState = HRTIM_OUTPUTIDLESTATE_INACTIVE;

HRTIM_TIM_OutputStructure.FaultState = HRTIM_OUTPUTFAULTSTATE_INACTIVE;

HRTIM_TIM_OutputStructure.ChopperModeEnable = HRTIM_OUTPUTCHOPPERMODE_DISABLED;

HRTIM_TIM_OutputStructure.BurstModeEntryDelayed = HRTIM_OUTPUTBURSTMODEENTRY_REGULAR;

HRTIM_WaveformOutputConfig(HRTIM1,HRTIM_TIMERINDEX_TIMER_D,HRTIM_OUTPUT_TD1,&HRTIM_TIM_OutputStructure);

//HRTIM_WaveformOutputConfig(HRTIM1,HRTIM_TIMERINDEX_TIMER_D,HRTIM_OUTPUT_TD2,&HRTIM_TIM_OutputStructure);

HRTIM_CompareStructure.AutoDelayedMode=HRTIM_AUTODELAYEDMODE_REGULAR;

HRTIM_CompareStructure.AutoDelayedTimeout=0x00;

HRTIM_CompareStructure.CompareValue=PERIOD/2;

HRTIM_WaveformCompareConfig(HRTIM1,HRTIM_TIMERINDEX_TIMER_D,HRTIM_COMPAREUNIT_1,&HRTIM_CompareStructure);

HRTIM_DeadtimeStructure.FallingLock=HRTIM_TIMDEADTIME_FALLINGLOCK_READONLY;

HRTIM_DeadtimeStructure.FallingSign=HRTIM_TIMDEADTIME_FALLINGSIGN_POSITIVE;

HRTIM_DeadtimeStructure.FallingSignLock=HRTIM_TIMDEADTIME_FALLINGSIGNLOCK_READONLY;

HRTIM_DeadtimeStructure.FallingValue=0X00;

HRTIM_DeadtimeStructure.RisingLock=HRTIM_TIMDEADTIME_RISINGLOCK_READONLY;

HRTIM_DeadtimeStructure.RisingSign=HRTIM_TIMDEADTIME_RISINGSIGN_POSITIVE;

HRTIM_DeadtimeStructure.RisingSignLock=HRTIM_TIMDEADTIME_RISINGSIGNLOCK_READONLY;

HRTIM_DeadtimeStructure.RisingValue=0X00;

HRTIM_DeadTimeConfig(HRTIM1,HRTIM_TIMERINDEX_TIMER_D,&HRTIM_DeadtimeStructure);

HRTIM_WaveformOutputStart(HRTIM1,HRTIM_OUTPUT_TD1);

HRTIM_WaveformOutputStart(HRTIM1,HRTIM_OUTPUT_TD2);

HRTIM_WaveformCounterStart(HRTIM1,HRTIM_TIMERID_TIMER_D);

}