RFSoC4x2 Register Map Different Format

[marioruiz]

Hi Jenny,

Please see this post.

Pynq 2.7 HLS registers write-only?

Hi @baileyji, I am to blame for these changes, we’ve seen some cases where the board hangs because the register map tries to read from a “write-only” register. In your case Vivado is exporting these registers with the “write-only” access type and therefore pynq 2.7 will not read them. While we investigate a better way you can use the previous version of the registers.py file. Run this command in a Jupyter Lab terminal, and then restart any Jupyer Notebook you may have wget https://raw.github…

Preventing read access to write-only register is a choice we made. Because, some times some IP will not return a value when doing this and it will hang the board. If you are sure this register can be read, even if it is a write-only. You could modify the hwh file to reflect this, or revert to the way we did this in 2.6 as indicated in the post above.

Additionally, you can change the access mode if you are creating your own driver for this IP.

I am not sure why the difference between the two boards.

Mario