TMS320F28379D: DAC pin DACOUTC on launchpad or control card

Satish Belkhode said:

I could see the DAC output pin for only A and B, while DACOUTC is not available.

Have you tried one of the c2000ware DAC examples to enable the DACOUTC output?

C:\ti\c2000\C2000Ware_5_00_00_00\driverlib\f2837xd\examples\cpu1\dac

Which HW did you use in your testing?

Satish Belkhode said:

Can you please confirm if there is any way I can use three DACs independently on this controller?

Yes, you can.

Satish Belkhode said:

Also, can you please suggest a possible alternative controller launchpad or control card which provides three DAC output on the board?

The three DAC outputs are available on the F2837x controlCARD.

https://www.ti.com/tool/TMDSDOCK28379D

Hi,

Thanks for this information. I am currently using 28379D launchpad, where I could see only two DAC output pins (A and B). Even with control card, I could see only two DAC output (attached figure). This pin configuration figure does not explicitly mention DAC C on pin 14. 

But as I understand from the information you provided that though it is not mentioned, ADCB1 can be configured as DACOUTC.

I hope the same should be applicable for the launchpad too. Please clarify if that is not the case. As you mentioned, I will also check the DAC example file. 

Thanks again for all the details.

Hi, 

I checked with the control card and I am able to use three DACs. However, the launchpad do not provide access to the W2 (DACOUTC) pin from the figure you provided. I checked all available headers and this pin is not connected to any one. Thus, though it is there on chip, I am unable to access it in the launchpad. I hope my understanding is correct. Please reverify.

Thanks again for the support.