TI中文支持网求助，DSP28035 EPWMxB无PWM波，A组有，B组可以配置为GPIO口，可以输出高电平 ，就是没有PWM波，配置寄存器如下：
EPwm5Regs.TBCTL.bit.CTRMODE = TB_COUNT_UP; // Count up
EPwm5Regs.TBPRD = EPWMx_TIMER_TBPRD; // Set timer period
EPwm5Regs.TBCTL.bit.PHSEN = TB_DISABLE; // Disable phase loading
EPwm5Regs.TBPHS.half.TBPHS = 0x0000; // Phase is 0
EPwm5Regs.TBCTR = 0x0000; // Clear counter
EPwm5Regs.TBCTL.bit.HSPCLKDIV = TB_DIV1; // Clock ratio to SYSCLKOUT
EPwm5Regs.TBCTL.bit.CLKDIV = TB_DIV1;
EPwm5Regs.CMPCTL.bit.SHDWAMODE = CC_SHADOW;
EPwm5Regs.CMPCTL.bit.SHDWBMODE = CC_SHADOW;
EPwm5Regs.CMPCTL.bit.LOADAMODE = CC_CTR_ZERO;
EPwm5Regs.CMPCTL.bit.LOADBMODE = CC_CTR_ZERO;
EPwm5Regs.AQCTLA.bit.CAU = AQ_CLEAR;
EPwm5Regs.AQCTLA.bit.ZRO = AQ_SET;
EPwm5Regs.AQCTLB.bit.CAU = AQ_CLEAR;
EPwm5Regs.AQCTLB.bit.ZRO = AQ_SET;
EPwm5Regs.CMPA.half.CMPA = 0;
EPwm5Regs.CMPB = 3000;
xiang lan：
回复 Martin Yu:
GPIO配置成PWM了，就是PWM不行，才用GPIO试了下，可以当GPIO用，不能输出PWM波，EPWMx_TIMER_TBPRD是6000
求助，DSP28035 EPWMxB无PWM波，A组有，B组可以配置为GPIO口，可以输出高电平 ，就是没有PWM波，配置寄存器如下：
EPwm5Regs.TBCTL.bit.CTRMODE = TB_COUNT_UP; // Count up
EPwm5Regs.TBPRD = EPWMx_TIMER_TBPRD; // Set timer period
EPwm5Regs.TBCTL.bit.PHSEN = TB_DISABLE; // Disable phase loading
EPwm5Regs.TBPHS.half.TBPHS = 0x0000; // Phase is 0
EPwm5Regs.TBCTR = 0x0000; // Clear counter
EPwm5Regs.TBCTL.bit.HSPCLKDIV = TB_DIV1; // Clock ratio to SYSCLKOUT
EPwm5Regs.TBCTL.bit.CLKDIV = TB_DIV1;
EPwm5Regs.CMPCTL.bit.SHDWAMODE = CC_SHADOW;
EPwm5Regs.CMPCTL.bit.SHDWBMODE = CC_SHADOW;
EPwm5Regs.CMPCTL.bit.LOADAMODE = CC_CTR_ZERO;
EPwm5Regs.CMPCTL.bit.LOADBMODE = CC_CTR_ZERO;
EPwm5Regs.AQCTLA.bit.CAU = AQ_CLEAR;
EPwm5Regs.AQCTLA.bit.ZRO = AQ_SET;
EPwm5Regs.AQCTLB.bit.CAU = AQ_CLEAR;
EPwm5Regs.AQCTLB.bit.ZRO = AQ_SET;
EPwm5Regs.CMPA.half.CMPA = 0;
EPwm5Regs.CMPB = 3000;
xiang lan：
回复 xiang lan:
这是在TI官方例程上复制过来的一小段程序，不是自己写的
