使用STM32F334的HRTIM產生互補式PWM

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福留爸爸发布时间：2017-8-26 19:47

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以下代碼是我自己寫的設定register的lib來實現HRTIM互補式PWM，實在用不慣ST的庫，希望用STM32F334來實現數字電源控制，接下來會繼續更新其他PWM模式，ADC取樣方法，數字補償器，數字濾波器設計代碼。敬請期待!!
希望大家都可以STM32F334來玩數字電源!!
void HRTIM_CLK_Config(void)
{
/* Initialize the HRTIM clock and DLL */
RCC_CFGR3.bits.HRTIM1SW = 1;       //PLL vco output (running up to 144 MHz)
RCC_APB2ENR.bits.HRTIM1EN = 1;    //Enable HRTIM clock

HRTIM_DLLCR.bits.CALRTE = 3;
HRTIM_DLLCR.bits.CALEN = 1;

while(!HRTIM_ISR.bits.DLLRDY);    //Wait calibration completion
}

void HRTIM_ComplementaryPWM_Config(void)
{
HRTIM_TIMACR.bits.CKPSCx = 0;    // 144MHz * 32
HRTIM_TIMACR.bits.CONT = 1;
HRTIM_TIMACR.bits.HALF = 0;
HRTIM_TIMACR.bits.SYNCSTRTx = 0;
HRTIM_TIMACR.bits.SYNCRSTx = 0;
HRTIM_TIMACR.bits.DACSYNC = 0;
HRTIM_TIMACR.bits.PREEN = 1;
HRTIM_TIMACR.bits.UPDGAT = 0;
HRTIM_BMCR.bits.MTBM = 0;
HRTIM_TIMACR.bits.TxREPU = 1;
HRTIM_TIMACR.bits.TxRSTU = 0;
HRTIM_TIMACR.bits.PSHPLL = 0;
HRTIM_FLTAR.bits.FLT1EN = 1;
HRTIM_FLTAR.bits.FLTLCK = 0;
HRTIM_OUTAR.bits.DTEN = 1;
HRTIM_OUTAR.bits.DLYPRTEN = 0;

HRTIM_OUTAR.bits.POL1 = 0;
HRTIM_SETA1R.bits.PER = 1;
HRTIM_RSTA1R.bits.CMP1 = 1;
HRTIM_OUTAR.bits.IDLEM1 = 0;
HRTIM_OUTAR.bits.IDLES1 = 0;
HRTIM_OUTAR.bits.FAULT1 = 0;
HRTIM_OUTAR.bits.CHP1 = 0;
HRTIM_OUTAR.bits.DIDL1 = 0;

HRTIM_OUTAR.bits.POL2 = 0;
HRTIM_SETA2R.bits.PER = 1;
HRTIM_RSTA2R.bits.CMP1 = 1;
HRTIM_OUTAR.bits.IDLEM2 = 0;
HRTIM_OUTAR.bits.IDLES2 = 0;
HRTIM_OUTAR.bits.FAULT2 = 0;
HRTIM_OUTAR.bits.CHP2 = 0;
HRTIM_OUTAR.bits.DIDL2 = 0;

HRTIM_PERAR.all  = 46080;          // 100KHz = 144MHz * 32 / 100KHz
HRTIM_CMP1AR.all = 46080>>2; // 50% Duty setting

//Dead time setting
HRTIM_DTAR.bits.DTPRSC = 0; //Deadtime resoultion setting to 868psec

//Falling side
HRTIM_DTAR.bits.DTFLKx = 0;
HRTIM_DTAR.bits.SDTFx = 0;
HRTIM_DTAR.bits.DTFSLKx = 1;
HRTIM_DTAR.bits.DTFx = 500; //500 * 868p = 434ns

//Rising side
HRTIM_DTAR.bits.DTRLKx = 0;
HRTIM_DTAR.bits.SDTRx = 0;
HRTIM_DTAR.bits.DTRSLKx = 1;
HRTIM_DTAR.bits.DTRx = 500;

HRTIM_MCR.bits.TACEN = 1;
HRTIM_OENR.bits.TA1OEN = 1;
HRTIM_OENR.bits.TA2OEN = 1;
}

void HRTIM_Outputs_Config(void)
{
/* Enable GPIOA clock for timer A outputs */

RCC_AHBENR.bits.IOPAEN = 1;

/* Configure HRTIM output: TA1 (PA8) and TA2 (PA9)*/
GPIOA_MODER.bits.MODER8    = GPIO_Mode_AF;
GPIOA_OTYPER.bits.OT8       = GPIO_OType_PP;
GPIOA_OSPEEDR.bits.OSPEEDR8  = GPIO_Speed_50MHz;
GPIOA_PUPDR.bits.PUPDR8    = GPIO_PuPd_NOPULL;
GPIOA_AFRH.bits.AFR8       = GPIO_AF_13;

GPIOA_MODER.bits.MODER9    = GPIO_Mode_AF;
GPIOA_OTYPER.bits.OT9       = GPIO_OType_PP;
GPIOA_OSPEEDR.bits.OSPEEDR9  = GPIO_Speed_50MHz;
GPIOA_PUPDR.bits.PUPDR9    = GPIO_PuPd_NOPULL;
GPIOA_AFRH.bits.AFR9       = GPIO_AF_13;

}

int main(void)
{
SystemInit();

HRTIM_Outputs_Config();
HRTIM_CLK_Config();
HRTIM_ComplementaryPWM_Config();

while(1)
{

}
}