基于DSP的pwm整流器C代码

以下是一个基于TMS320F28335 DSP的PWM整流器的C语言代码，你可以根据需要进行修改和适配：

#include "DSP2833x_Device.h"

#define PWM_DUTY_CYCLE 1000 // PWM占空比

void GPIO_Configuration(void);
void PWM_Configuration(void);

void main(void)
{
    InitSysCtrl();
    InitPieCtrl();
    IER = 0x0000;
    IFR = 0x0000;
    InitPieVectTable();
    GPIO_Configuration();
    PWM_Configuration();
    
    while (1)
    {
        // 你的代码逻辑
    }
}

void GPIO_Configuration(void)
{
    EALLOW;
    GpioCtrlRegs.GPAMUX1.bit.GPIO0 = 0;
    GpioCtrlRegs.GPADIR.bit.GPIO0 = 0;
    EDIS;
}

void PWM_Configuration(void)
{
    EPwm1Regs.TBPRD = 1999;
    EPwm1Regs.TBPHS.bit.TBPHS = 0;
    EPwm1Regs.TBCTL.bit.CTRMODE = 0;
    EPwm1Regs.TBCTL.bit.PHSEN = 0;
    EPwm1Regs.TBCTL.bit.PRDLD = 0;
    EPwm1Regs.TBCTL.bit.SYNCOSEL = 3;
    EPwm1Regs.CMPCTL.bit.SHDWAMODE = 1;
    EPwm1Regs.CMPCTL.bit.SHDWBMODE = 1;
    EPwm1Regs.CMPCTL.bit.LOADAMODE = 0;
    EPwm1Regs.CMPCTL.bit.LOADBMODE = 0;
    EPwm1Regs.CMPA.bit.CMPA = PWM_DUTY_CYCLE - 1;
    EPwm1Regs.CMPB.bit.CMPB = 0;
    EPwm1Regs.AQCTLA.bit.CAU = 2;
    EPwm1Regs.AQCTLA.bit.CAD = 1;
    EPwm1Regs.AQCTLB.bit.CBU = 2;
    EPwm1Regs.AQCTLB.bit.CBD = 1;
    EPwm1Regs.DBCTL.bit.IN_MODE = 0;
    EPwm1Regs.DBCTL.bit.OUT_MODE = 3;
    EPwm1Regs.DBCTL.bit.POLSEL = 2;
    EPwm1Regs.DBCTL.bit.HALFCYCLE = 1;
    EPwm1Regs.DBRED = 0;
    EPwm1Regs.DBFED = 0;
    EPwm1Regs.TZSEL.bit.OSHT1 = 0;
    EPwm1Regs.TZSEL.bit.OSHT2 = 0;
    EPwm1Regs.TZSEL.bit.OSHT3 = 0;
    EPwm1Regs.TZCTL.bit.TZA = 3;
    EPwm1Regs.TZCTL.bit.TZB = 3;
    EPwm1Regs.TZCLR.bit.OST = 1;
    EPwm1Regs.TZFRC.bit.OST = 1;
    EPwm1Regs.TBCTL.bit.CTRMODE = 0;
    EPwm1Regs.TBCTL.bit.PHSEN = 0;
    EPwm1Regs.TBCTL.bit.PRDLD = 0;
    EPwm1Regs.TBCTL.bit.SYNCOSEL = 3;
}

这个代码使用了TMS320F28335 DSP的EPwm1模块来生成PWM波形，并且使用了EPwm1的A和B通道来控制输出，通过修改PWM_DUTY_CYCLE的值可以改变占空比。