STM32高分辨率定时器(HRTIM)使用笔…

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

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

 HRTIM_TimerInitTypeDefHRTIM_TimerInitStructure;  //配置不同模式

 HRTIM_TimerCfgTypeDefHRTIM_TimerWaveStructure;//配置波形参数，错误等

 HRTIM_CompareCfgTypeDefHRTIM_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_DeadTimeCfgTypeDefHRTIM_DeadtimeStructure;//配置死区时间和性质

  HRTIM_FaultCfgTypeDefHRTIM_FaultCfgStructure;//配置错误输入

  HRTIM_ADCTriggerCfgTypeDefHRTIM_ADCTrigStructure;   //配置ADC触发信号

HRTIM_BurstModeCfgTypeDefHRTIM_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

 voidHRTIM_Config(void)

 {

 HRTIM_OutputCfgTypeDefHRTIM_TIM_OutputStructure;

 HRTIM_BaseInitTypeDefHRTIM_BaseInitStructure;

 HRTIM_TimerInitTypeDefHRTIM_TimerInitStructure;  

 HRTIM_TimerCfgTypeDefHRTIM_TimerWaveStructure;

 HRTIM_CompareCfgTypeDefHRTIM_CompareStructure;

 HRTIM_DeadTimeCfgTypeDefHRTIM_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);

 }

风子

2015,05,26