Search FAQs on the left to see if your question has been answered. Click on the dropdown to view all of the documents associated with the product. If you can't find your question, click on Ask a Question. 

AD5422_SPI daisy chain reading

Q 

We have some difficulties to perform the SPI-reading back for multiple chips in
daisy-chain mode.
They have succeeded in SPI writing/reading for a single chip and they have
succeeded in SPI writing for multiple chips in daisy-chain.It seems that the
operational timing/steps for the read-back in daisy-chain mode is not explained
in detail in the datasheet.

 

A 

I am not sure it is possible to use readback in daisy-chain mode and I’m not
aware of it being offered with other DACs that have a daisy chain mode.
Readback is difficult to implement with daisy-chain as the register data
clocked out of the first device could appear as a command to the second device
causing unexpected behavior.
Comments
Anonymous
Related