半桥变换器DSP代码

以下是一个基于TMS320F28377D的半桥变换器的DSP代码：

//定义半桥开关控制引脚
#define SW1 GPIO8
#define SW2 GPIO9
#define SW3 GPIO10
#define SW4 GPIO11

//定义PWM引脚
#define PWM1 GPIO0
#define PWM2 GPIO1

//定义ADC采样引脚
#define ADC1 GPIO2
#define ADC2 GPIO3

//定义adc值
Uint16 adc1, adc2;

void main(void)
{
    //初始化GPIO
    InitGpio();

    //初始化PWM模块
    InitEPwm();

    //初始化ADC模块
    InitAdc();

    //开启全局中断
    EINT;

    while(1)
    {
        //读取ADC采样值
        adc1 = AdcConversion(ADC1);
        adc2 = AdcConversion(ADC2);

        //根据ADC采样值控制半桥开关
        if(adc1 > adc2)
        {
            //SW1和SW4闭合，SW2和SW3断开
            GpioDataRegs.GPASET.bit.SW1 = 1;
            GpioDataRegs.GPASET.bit.SW4 = 1;
            GpioDataRegs.GPACLEAR.bit.SW2 = 1;
            GpioDataRegs.GPACLEAR.bit.SW3 = 1;
        }
        else
        {
            //SW2和SW3闭合，SW1和SW4断开
            GpioDataRegs.GPASET.bit.SW2 = 1;
            GpioDataRegs.GPASET.bit.SW3 = 1;
            GpioDataRegs.GPACLEAR.bit.SW1 = 1;
            GpioDataRegs.GPACLEAR.bit.SW4 = 1;
        }
    }
}

void InitGpio(void)
{
    //初始化半桥开关控制引脚
    GpioCtrlRegs.GPAMUX1.bit.SW1 = 0;
    GpioCtrlRegs.GPAMUX1.bit.SW2 = 0;
    GpioCtrlRegs.GPAMUX1.bit.SW3 = 0;
    GpioCtrlRegs.GPAMUX1.bit.SW4 = 0;
    GpioCtrlRegs.GPADIR.bit.SW1 = 1;
    GpioCtrlRegs.GPADIR.bit.SW2 = 1;
    GpioCtrlRegs.GPADIR.bit.SW3 = 1;
    GpioCtrlRegs.GPADIR.bit.SW4 = 1;

    //初始化PWM引脚
    GpioCtrlRegs.GPAMUX1.bit.PWM1 = 1;
    GpioCtrlRegs.GPAMUX1.bit.PWM2 = 1;
    GpioCtrlRegs.GPADIR.bit.PWM1 = 1;
    GpioCtrlRegs.GPADIR.bit.PWM2 = 1;

    //初始化ADC采样引脚
    GpioCtrlRegs.GPAMUX1.bit.ADC1 = 0;
    GpioCtrlRegs.GPAMUX1.bit.ADC2 = 0;
    GpioCtrlRegs.GPADIR.bit.ADC1 = 0;
    GpioCtrlRegs.GPADIR.bit.ADC2 = 0;
}

void InitEPwm(void)
{
    //设置PWM时钟频率
    EPwm1Regs.TBPRD = 1000;

    //设置PWM输出模式
    EPwm1Regs.AQCTLA.bit.CAU = 2;
    EPwm1Regs.AQCTLA.bit.CAD = 1;
    EPwm2Regs.AQCTLA.bit.CAU = 2;
    EPwm2Regs.AQCTLA.bit.CAD = 1;

    //使能PWM模块
    EPwm1Regs.TBCTL.bit.CTRMODE = 0x00;
    EPwm2Regs.TBCTL.bit.CTRMODE = 0x00;
}

void InitAdc(void)
{
    //初始化ADC模块
    AdcRegs.ADCTRL1.bit.RESET = 0;
    AdcRegs.ADCTRL1.bit.SUSMOD = 0;
    AdcRegs.ADCTRL1.bit.ACQ_PS = 0;
    AdcRegs.ADCTRL1.bit.CPS = 0;
    AdcRegs.ADCTRL1.bit.SEQ_CASC = 0;
    AdcRegs.ADCTRL1.bit.SEQ_OVRD = 0;
    AdcRegs.ADCTRL1.bit.CONT_RUN = 1;

    //配置ADC采样参数
    AdcRegs.ADCSOC0CTL.bit.TRIGSEL = 5;
    AdcRegs.ADCSOC0CTL.bit.CHSEL = 0;
    AdcRegs.ADCSOC0CTL.bit.ACQPS = 14;
    AdcRegs.ADCSOC1CTL.bit.TRIGSEL = 5;
    AdcRegs.ADCSOC1CTL.bit.CHSEL = 1;
    AdcRegs.ADCSOC1CTL.bit.ACQPS = 14;

    //使能ADC模块
    AdcRegs.ADCTRL1.bit.ADCEN = 1;
}

Uint16 AdcConversion(Uint16 channel)
{
    //配置ADC采样通道
    AdcRegs.ADCSOCFRC1.bit.SOC0 = 1;
    AdcRegs.ADCSOCFRC1.bit.SOC1 = 1;

    //等待ADC采样结束
    while(AdcRegs.ADCINTFLG.bit.ADCINT1 == 0) {}
    AdcRegs.ADCINTFLGCLR.bit.ADCINT1 = 1;

    //返回ADC采样值
    if(channel == ADC1)
    {
        return AdcRegs.ADCRESULT0;
    }
    else if(channel == ADC2)
    {
        return AdcRegs.ADCRESULT1;
    }
    else
    {
        return 0;
    }
}

请注意，上述代码仅供参考，实际使用时需要根据具体的硬件配置和需求进行修改。