Additional Pin Assignments for Duet2 in RRF 3?
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I have created my PCB with the two SX1509B chips at addresses 0x3F and 0x71.
I know I can access them directly with M260, but are there any plans for adding the 2nd SX1509B chip to the logical pins so they can be accessed through M574, M670 and M950? Actually I don't think I can use M260 for a lot of things, because I do need end stops and heaters to be specified and can't rely upon M260 for that.
I would be able to duplicate the existing SX1509B code in the firmware for 0x3F and submit a pull request, but that would be sloppy.
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I've submitted a pull request to have two SX1509 boards available:
https://github.com/dc42/RepRapFirmware/pull/379
Just built the binaries and I am going to go test it with my Duet2.
open Add Support for 2 SX1509B I/O Expanders #379
