- Ask a related questionWhat is a related question?A related question is a question created from another question. When the related question is created, it will be automatically linked to the original question.
Original question:
I am combine tne CMPSS module with EPWM's DC module to implement the hardware protection,the code is show below (please ignore the Chinese,^_^):
//---------------------------------------------------------------------------------------------------------------------------------------------
EPwm1Regs.DCTRIPSEL.bit.DCAHCOMPSEL = 0x0011; //3,TRIP4
EPwm1Regs.DCTRIPSEL.bit.DCBHCOMPSEL = 0x0011; //3,TRIP4
EPwm1Regs.TZDCSEL.bit.DCAEVT1 = 2; //010:DCAH = high,DCAL = don't care, DC A Event 1 Selection
EPwm1Regs.TZDCSEL.bit.DCBEVT1 = 2; //010:DCBH = high,DCBL = don't care, DC B Event 1 Selection
EPwm1Regs.DCACTL.bit.EVT1FRCSYNCSEL = 1; //1, Source is passed through asynchronously
EPwm2Regs.DCTRIPSEL.bit.DCAHCOMPSEL = 0x0011; //3,TRIP4
EPwm2Regs.DCTRIPSEL.bit.DCBHCOMPSEL = 0x0011; //3,TRIP4
EPwm2Regs.TZDCSEL.bit.DCAEVT1 = 2; //010:DCAH = high,DCAL = don't care, DC A Event 1 Selection
EPwm2Regs.TZDCSEL.bit.DCBEVT1 = 2; //010:DCBH = high,DCBL = don't care, DC B Event 1 Selection
EPwm2Regs.DCACTL.bit.EVT1FRCSYNCSEL = 1; //1, Source is passed through asynchronously
EPwm3Regs.DCTRIPSEL.bit.DCAHCOMPSEL = 0x0011; //3,TRIP4
EPwm3Regs.DCTRIPSEL.bit.DCBHCOMPSEL = 0x0011; //3,TRIP4
EPwm3Regs.TZDCSEL.bit.DCAEVT1 = 2; //010:DCAH = high,DCAL = don't care, DC A Event 1 Selection
EPwm3Regs.TZDCSEL.bit.DCBEVT1 = 2; //010:DCBH = high,DCBL = don't care, DC B Event 1 Selection
EPwm3Regs.DCACTL.bit.EVT1FRCSYNCSEL = 1; //1, Source is passed through asynchronously
#define TZSEL_INIT_STATE1 ENABLE_TZ1_OST+ENABLE_DCAEVT1_OST+ENABLE_DCBEVT1_OST
#define TZCTL_INIT_STATE ( TZA_FORCE_LO + TZB_FORCE_LO )
EPwm1Regs.TZSEL.all = TZSEL_INIT_STATE1;
EPwm2Regs.TZSEL.all = TZSEL_INIT_STATE1;
EPwm3Regs.TZSEL.all = TZSEL_INIT_STATE1;
/* Init Trip Zone Control Register*/
EPwm1Regs.TZCTL.all = TZCTL_INIT_STATE; //TZA_FORCE_LO + TZB_FORCE_LO
EPwm2Regs.TZCTL.all = TZCTL_INIT_STATE; //TZA_FORCE_LO + TZB_FORCE_LO
EPwm3Regs.TZCTL.all = TZCTL_INIT_STATE; //TZA_FORCE_LO + TZB_FORCE_LO
//---------------------------------------------------------------------------------------------------------------------------------------------
The question is that I just can't clear the Flag bit in TZFLG Register with the TZCLR Register, and the logic is confuse.
Why??? Is there any bug in my configuration code?
My brain is gonna blow, please saving me!!
