This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TMS320F28377S: PWM Frequency calculation

Part Number: TMS320F28377S


Hello,

I am working on LAUNCHXL-F28377S. I have been generated PWM with this but not able to calculate frequency. I assume EPWMCLK = PLLSYSCLK/2 (as default) and PLLSYSCLK of this board is 120 MHz. Is it true?

I am using up-down counter for this so my Tpwm = 2 x TBPRD x Ttbclk where Ttbclk = 1 / EPWMCLK / (HSPCLKDIV X CLKDIV). During testing my if I take TBPRD = 2, my PWM generates 16.275 KHz, (HSPCLKDIV = 6 & CLKDIV = 6). 

Please help me on this.

Regards

Jaydeep Parmar