TMS320F280049C: How to configured the Cmpss 12-bit DAC reference to be VDAC?

user3455617

Part Number: TMS320F280049C

Dear:

I want to configured the Cmpss 12-bit DAC reference to be VDAC,

I do like this：

1. Cmpss1Regs.COMPDACCTL.bit.SELREF = 1;

I test found the DAC reference no use VDAC, How to configured the Cmpss 12-bit DAC reference to be VDAC?

0 Leon Linder over 5 years ago

How did you test that VDDA is used as a reference instead of VDAC?

+1 Frank Ankapong over 5 years ago

Hi,

That is the correct way to set the COMPDAC reference to VDAC. Are you providing power to the VDAC pin i.e B3?

C2000 microcontrollers forum