STM32高分辨率定时器(HRTIM)使用实例之PWM

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#include "HRTIM_app.h" 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); }

源码下载：
http://download.csdn.net/detail/wind4study/8742237

风子

2015,05,26