Only 8 out 16 digital pins available.
ibwharri opened this issue · comments
We have a need to access 14 digital pins, however it seems that QICK only supports 8 out of the 16 digital pins on the ZCU216 we are using. Is this a technical limitation, or is there something we can do to get access to the other 8 pins?
That's just how many pins are wired in the firmware; you would need to modify+recompile the firmware (starting with the source in https://github.com/openquantumhardware/qick/tree/main/firmware) to get more pins.
Making changes to the firmware is pretty nontrivial and we don't recommend it unless you have some experience - we can give you tips but we can't walk you through the whole learning process.
Would it just be as simple as duplicating these entries for PMOD0 in the tlc file to make PMOD1 equivalents (it looks like PMOD1_0 is used for something so maybe that one should be excluded), and then uncommenting these PMOD1 entries in the xfc file? Or is there something more involved in the firmware that would need to be done?
I think that's correct, but can't be sure you're not missing something. Normally one doesn't edit the bd.tcl file directly, there's a GUI.