Pmod HAT & PmodDA4

[CPDP]

Hi everyone !

I juste bought a Digilent PmodHAT and 2 Digilent PmodDA4 to embellish my RPI4 and continue to develop my python app.

I downloaded the python library for the HAT with

sudo pip3 install designspark.pmod

Then, i wanted to create a "dac" object to play with my equipment.

I'm probably missing something, but it seems that HAT library do not implement DA4 as you can see on this screenshot :

 

Is there an up to date library able to control PmodDA4 ?

Is there a non official library to do that ?

 

Thanks in advance for your answers :)

 

Cédric PDP

[JColvin]

Hi @CPDP,

Digilent did not create the python materials for the Pmod HAT; those were solely created and maintained by DesignSpark.

I haven't used those materials in particular, but I would probably recommend looking into how the Pmod MIC3 is set up since that Pmod also reads in multiple bytes over the SPI protocol and changing the library so that it sends out the necessary set-up stream to get the internal AD5628 to use it's internal voltage reference rather than the non-existent external reference that it uses by default on power-up. More details on how to do this setup is explained in it's reference manual: https://digilent.com/reference/pmod/pmodda4/reference-manual#interfacing_with_the_pmod.

Let me know if you have any questions.

Thanks,
JColvin