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RAMPSOURCE (PWMSYNC) for other PWMs in Comparator in F28035

Srinath Raveendran
Prodigy 70 points

Other Parts Discussed in Thread: TMS320F28035

In TMS320F28035 in the analog comparator, I am trying to use Ramp Generator input for the DAC.

The rampsource can be set to PWMSYNC1,2,3 and 4 only. If I use PWM5,PWM6,PWM7 then how should the RAMPSOURCE be specified ? So it means the RAMPSOURCE can not be synchronized with PWM5,PWM6 and PWM7. Am I right ?

Is it possible to use ramp generator with out using PWMSYNC ? From the statement in the spruge5f "The values of the RAMPMAXREF_SHDW shadow registers are copied to the active registers on the next PWMSYNC signal". So does it mean that RAMPMAXREF_SHDW cannot be updated in ISR dynamically with out using PWMSYNC.

I really appreciate your help in answering these questions. 

Regards,

Srinath.