HP41 with Pico RP2040 attached, update

[Sylvain Cote]

(06-17-2024 11:19 PM)Christoph Giesselink Wrote:  

(06-17-2024 03:02 PM)MeindertKuipers Wrote:  Answer two: TULIP will indeed replace both the IL module AND the PILBox. In this setup it is not possible to connect 'real' HP-IL devices.

I think that's not true. Connect TULIP with ILPilbox and you have virtual HP-IL. Connect another instance of ILPilbox with virtual HP-IL on one side, the other side a PIL-Box and so you get 'real' HP-IL.

TMK, one of the TULIP4041 module feature is to replace the HP-IL module and the PIL-Box.
It does this by implementing the HP-IL internal registers on the NUT CPU side, implementing the USB CDC profile on the other side and the IL over serial framing from Jean-François.
So, you insert the TULIP4041 module in the HP-41, plug the TULIP4041 USB connector to the computer, start one of the HP-IL Virtual software and voila! (a HP-IL loop without HP-IL cabling)