CODE IS RUNNING BUT OUTPUT IS NOT VISIBLE IN CRO

praveen kumar37

Other Parts Discussed in Thread: TMS320F28335

I am doing project on Direct power control.I need to give the pulses to the inverter for this thing. I have been working on TMS320F28335 DSP experimental kit for 2 months.I studied the manuals (sprug04a) .Now i run exmple codes available in Texas explorer. I run the code PWM UP AQ. the code running just fine.But i am not getting any pulses.

i am taking outputs at pin 23 (EPWM1A) and ground pin (pin 27)

over 8 years ago

0 praveen kumar37 over 8 years ago

Intellectual 290 points

the output shown in CRO is noise.When i connected to the PC it is coming.

0 Brett Larimore over 8 years ago in reply to praveen kumar37

TI__Guru 57255 points

Hi Praveen,

The header label/number written in silkscreen corresponds to the typical GPIO or ADC input found on that pin. You should be looking at the pin labelled 00.

Hopefully this helps!

Thank you,
Brett

0 Gautam Iyer over 8 years ago in reply to praveen kumar37

Guru 192875 points

Hi Praveen,

As Brett correctly mentioned, its not pin numbering that you observe -> its the direct GPIO numbering and ADC numbering.
00 = GPIO00 = ePWM1A.

Regards,
Gautam

0 praveen kumar37 over 8 years ago in reply to Brett Larimore

Intellectual 290 points

thank you sir. I got it.

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CODE IS RUNNING BUT OUTPUT IS NOT VISIBLE IN CRO