Tool/software:
Hello, experts from TI; I have a question about the EPWM module of the TMS320F2800135 chip. I need to use the EPWM4 peripheral to output PWM waves on the GPO6 and GPO7 pins; The relevant configurations of EPWM4 are as follows:
EPwm4Regs.TBPRD=3000;
EPwm4Regs.TBCTL.bit.CTRMODE = 0x02;
EPwm4Regs.CMPCTL.bit.LOADAMODE = 0x2;
EPwm4Regs.CMPCTL.bit.SHDWAMODE = 0x0;
EPwm4Regs.AQCTLA.bit.CAU = 0x01;
EPwm4Regs.AQCTLA.bit.CAD = 0x02;
EPwm4Regs.CMPCTL.bit.LOADBMODE =0x2;
EPwm4Regs.CMPCTL.bit.SHDWBMODE = 0x0;
EPwm4Regs.AQCTLB.bit.CBU = 0x02;
EPwm4Regs.AQCTLB.bit.CBD = 0x01;
in addition, I assign values to EPWM4 CMPA.bit.CMPA and CMPB.bit.CMPB in the zero crossing interrupt function of the EPWM4 ；
My question is: I see the following paragraph in the chip manual. If I use it this way, assign EPWM4 CMPA.bit.CMPA and CMPB.bit.CMPB to 0 or 3000; Will it cause the EPWM4 module to lose control, resulting in abnormal waveforms output from the GPO6 and GPO7 pins, always at a high level?
