R3.3 hardware: Update README, add HW_REV switch, ordering info

apfelaudio / eurorack-pmod

A eurorack-friendly audio frontend compatible with many FPGA boards, based on the AK4619VN audio CODEC.

https://apfelaudio.com/modules/available/pmod/

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Closed schnommus closed 5 months ago

schnommus commented 5 months ago

Add support for R3.3 hw in gateware makefile with HW_REV switch (can be HW_R31 or HW_R33)
- Main difference from R31 is the default zero cal file and the state machine for the touch sensor
Update readme with all the details on R3.3 and comparison with R3.1
Add ordering info - R3.3 is in stock now :)
Some fixes to testbenches for latest cocotb