TMS320F2800137: DAC Output using CMPSS module

Ankit Saxena

Prodigy 180 points

Part Number: TMS320F2800137

Hi Team,

How to configure CMPSS module to get DAC output?

I have enabled CMPSS DACL Output Enable.

Added CMPSS module and configure DAC to take value from shadow register.

changing DAC's value in loop at some interval.

While monitoring pin A0/C15/CMP1_DACL/15, getting no output.

1. How to configure pin A0/C15/CMP1_DACL/15 to get output?

2. While setting value from CMPSS_setDACValueLow(myCMPSS0_BASE, 1000), I am getting value from funtion CMPSS_getDACValueLow(myCMPSS0_BASE) is "500". What I am doing wrong here?

Please help me to fix this example.

11 months ago

+1 Hadi Moradisizkoohi 11 months ago

TI__Expert 7040 points

Hello Ankit,

Thanks for your patience.

As far as the CMP1_DACL configuration is concerned, you need to enable CMPSS module as well.

Will check your code and update you.

Regards,

Hadi

0 Ankit Saxena 11 months ago in reply to Hadi Moradisizkoohi

Prodigy 180 points

Please also share your observation on second point which is "While setting value from CMPSS_setDACValueLow(myCMPSS0_BASE, 1000), I am getting value from funtion CMPSS_getDACValueLow(myCMPSS0_BASE) is "500". What I am doing wrong here?"

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TMS320F2800137: DAC Output using CMPSS module