TMS320F28377S: TMS320F28377S

Olutayo Omotoso

Hello,

I want to display PWM (ePWM2) on my laptop using the graphical tool in the CCS. The start address (0x0000_4100) I coppied in the the TRM cannot be evalueated. Could you please advise if the start address is wrong.

Regards

over 2 years ago

0 Luke Jones over 2 years ago

TI__Mastermind 28580 points

Hi Olutayo,

There are no registers/bits in the EPWM registers that tell the current state of the EPWM output. You will need to use the GPIO data bit in the GPIO registers that corresponds with the GPIO that your EPWM output is connected to. Keep in mind that the CCS graph tool is slow to update and not as effective as a traditional oscilloscope.

Let me know if you have any other questions.

Luke

0 Olutayo Omotoso over 2 years ago in reply to Luke Jones

Prodigy 160 points

Hi Luke,

Thank you for your help. I have the following settings for a switching frequency of 100 kHz but not displaying any PWM:

0 Luke Jones over 2 years ago in reply to Olutayo Omotoso

TI__Mastermind 28580 points

Hi Olutayo,

Are you able to see the EPWM output when measuring with an oscilloscope? If so this error is specific to the Graphing tool in CCS, I will refer you to the CCS team if that is the case.

Thank you,

Luke

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TMS320F28377S: TMS320F28377S