关于28335调试时的问题如何解决

那要看你这个EPwm1Setup函数里面设置的是什么啊！
你对PWM工作的原理了解吗？PWM设置好后，就会自动计数并产生PWM，不需要你重复去调用什么函数啊。
建议你研究一下PWM的user guide和controlSUITE中PWM的历程。
ERIC


                                                                         - ERIC

你好，老师，我是初学，下面是我这个PWM的函数，有一些#define我就没有列举，想知道问题出在哪里？
void EPwm1Setup()
[
// Setup TBCLK
EPwm1Regs.TBCTL.bit.HSPCLKDIV = TB_DIV2; // Clock ratio to SYSCLKOUT
EPwm1Regs.TBCTL.bit.CLKDIV = TB_DIV2;
EPwm1Regs.TBCTL.bit.CTRMODE = TB_COUNT_UPDOWN; // Count updown
EPwm1Regs.TBPRD = EPWM1_TIMER_TBPRD; // Set timer period,10K时为1875
EPwm1Regs.TBCTL.bit.PHSEN = 0x1; // Disable phase loading
EPwm1Regs.TBPHS.half.TBPHS = 0x0000; // Phase is 0
EPwm1Regs.TBCTL.bit.PRDLD =0x1;
EPwm1Regs.TBCTR = 0x0000; // Clear counter
// Setup shadow register load on ZERO
EPwm1Regs.CMPCTL.bit.SHDWAMODE = CC_SHADOW;
EPwm1Regs.CMPCTL.bit.SHDWBMODE = CC_SHADOW;
EPwm1Regs.CMPCTL.bit.LOADAMODE = CC_CTR_ZERO;
EPwm1Regs.CMPCTL.bit.LOADBMODE = CC_CTR_ZERO;
// Set Compare values
EPwm1Regs.CMPA.half.CMPA = 390; // Set compare A value 938 is 50%
// EPwm1Regs.CMPB = EPWM1_MIN_CMPB; // Set Compare B value
// Set actions
EPwm1Regs.AQCTLA.bit.CAU = AQ_SET; // Set PWM1A on Zero
EPwm1Regs.AQCTLA.bit.CAD = AQ_CLEAR; // Clear PWM1A on event A, up count
// EPwm1Regs.AQCTLB.bit.ZRO = AQ_SET; // Set PWM1B on Zero
// EPwm1Regs.AQCTLB.bit.CBU = AQ_CLEAR; // Clear PWM1B on event B, up count
// Interrupt where we will change the Compare Values
EPwm1Regs.ETSEL.bit.INTSEL = ET_CTR_ZERO; // Select INT on Zero event
EPwm1Regs.ETSEL.bit.INTEN = 1; // Enable INT
EPwm1Regs.ETPS.bit.INTPRD = 0x01; // Generate INT on 3rd event

EPwm1Regs.ETSEL.bit.SOCAEN=1;
EPwm1Regs.ETSEL.bit.SOCASEL=0x1;
EPwm1Regs.ETPS.bit.SOCAPRD=0x1;

]

PWM初始化做一遍就会一直出波形了，你为什么要重复的放在状态机里再去初始化？

我是想控制什么时候输出这个波形。我在做直流电机控制项目，想在外部有信号输入时，在输出PWM.