I am following the demo project for the PWM control ( MOD54415-PWM ).
I have made a small modification to the program so I can call the function to set up for Edge Aligned PWM pulses with different parameters.
EdgeAlignedPWM(pin, reset , pwmOff);
Occasionally calling this function will set the output high, and nothing I do restarts the PWM. I have to reset the board completely.
I am looking at Pin 35 (PWM_A2).
I have tried not calling the EdgeAligned function and to set these two registers directly:
sim1.mcpwm.sm[submod].val[1] = reset;
sim1.mcpwm.sm[submod].val[3] = pwmOff; //PWM_A Off = 256
InitializeModule();
But the same condition occurs.
I have inspected the fault register:
sim1.mcpwm.fsr
just in case a fault is occurring, but the value is 0, (and faults are disabled in the demo program anyways).
Anyone have any idea what is going on - or what would cause the output to go high and stay high?
- Yoram -