TMS320F28388D: ADC & CMPSS (internal DAC) PIN selection

Gaurav Patil

Prodigy 20 points

Part Number: TMS320F28388D

Tool/software:

Hello,

If I am using Analog pin ADCINC4, CMPIN5P for overcurrent protection using internal DAC.

Q: will it be possible to use ADCINC3,CMPIN6N for different purpose?

If so, Then do we need to intentionally take care of DAC output & ADCINC3 sampling, in other way DAC output & ADC sampling at ADCINC3 is not linked

4 months ago

0 Stevan Duraskovic 4 months ago

TI__Expert 4700 points

Hello,

You could use ADCINC3 for other purposes. Since it is connected to CMPSS6, you would enable CMPSS6 module and configure High or Low comparator. Each CMPSS have two comparators, so you could use same CMPSS module and use one ADC for high comparator and the other ADC (assuming it connects to same CMPSS module) for low one.

0 Gaurav Patil 4 months ago in reply to Stevan Duraskovic

Prodigy 20 points

Hello,

Can you please comment if I am using

- ADCINC4, CMPIN5P for overcurrent protection using internal DAC (signal 1)

- ADCINC5, CMPIN5N for Analog signal sampling. (signal 2)

here in this case the CMPSS module used are same. (CMPSS5)

Thanks for the previous response.

+1 Stevan Duraskovic 4 months ago in reply to Gaurav Patil

TI__Expert 4700 points

Hello,

Yes, you can. High comparator can be used for your sampling/control, and lower comparator can be used for your overcurrent protection.

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TMS320F28388D: ADC & CMPSS (internal DAC) PIN selection