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HRPWM calibration for Delfino F28334

Tibo
Prodigy 30 points

Hello,

I would like to use the HRPWM on an F28334 running at 150MHz.

I use SFO_TI_Build_V5B_fpu.lib

At power up, I make initialization and get a MepScale of 49. During operation I regularly update the MepScale with the calibration function and get about 46.

However, if using 46 for the MepScale, I get jumps at my output signal at the low resolution PWM transitions.

I could remove those jumps by setting the MepScale to 52. Therefore, it seems to me that the calibration function should return this value and not 46. I am not sure it would be a good thing to hard code a value as the datasheet says it is temperature and voltage dependent.

Is there something that I can do to improve the calibration ?

Thanks