LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)
31 Jul 2024 11:26 #306495
by Mecanix
Replied by Mecanix on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)
First contrib; Feel free to replicate/publish/flame/others. Great liltle working-but-simple fpga dev board.
Schematic attached.
Schematic attached.
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31 Jul 2024 11:33 #306497
by meister
Replied by meister on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)
WOW
very nice !!!
I recently tried to build a board with an ICE40UP5K, but I'm somehow too stupid to get it to work
The FPGA chips are just too small for me to solder them by hand.
It would be cool to have a complete rio board without having to use a plug-on devboard .
I just saw that you use Windows, rio unfortunately only runs under linux, vm is also ok, if it works in WSL I can't say unfortunately
I recently tried to build a board with an ICE40UP5K, but I'm somehow too stupid to get it to work
The FPGA chips are just too small for me to solder them by hand.It would be cool to have a complete rio board without having to use a plug-on devboard .
I just saw that you use Windows, rio unfortunately only runs under linux, vm is also ok, if it works in WSL I can't say unfortunately
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31 Jul 2024 11:39 #306500
by Mecanix
Replied by Mecanix on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)
The EDA I'm forced to use at work is win11 based. I know I know...
However my entire dev environment aka compilers, IDEs, ect, are all Debian/linux based. No substitute
If you aren't friend with fine pitch then avoid the LV9QN88 part. Not much better than the ICE40UP5K to say the least. I'm with you though, prefer their LQFP pinouts...
However my entire dev environment aka compilers, IDEs, ect, are all Debian/linux based. No substitute
If you aren't friend with fine pitch then avoid the LV9QN88 part. Not much better than the ICE40UP5K to say the least. I'm with you though, prefer their LQFP pinouts...
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31 Jul 2024 11:48 #306506
by meister
Replied by meister on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)
I built you a minimal config, could work like this, maybe I mixed up RX/TX, but it's a good start 
odippel@odippel:/usr/src/riocore$ PYTHONPATH=. bin/rio-generator riocore/configs/TangNano9K/config-mecanix.json
loading: riocore/configs/TangNano9K/config-mecanix.json
loading board setup: TangNano9K
writing gateware to: Output/Mecanix/Gateware
!!! gateware changed: needs to be build and flash |||
loading toolchain gowin
writing linuxcnc files to: Output/Mecanix/LinuxCNC
odippel@odippel:/usr/src/riocore$ ls Output/Mecanix/Gateware/
blink.v hash_new.txt Makefile pwmmod.v rio.sdc stepdir.v uart_baud.v uart_tx.v
debouncer.v impl pins.cst rio.gprj rio.v toggle.v uart_rx.v uart.v
....
PYTHONPATH=. bin/rio-test riocore/configs/TangNano9K/config-mecanix.json /dev/ttyUSB0Attachments:
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31 Jul 2024 13:38 #306521
by meister
Replied by meister on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)
I'm sorry, I was a bit bored
riocore/configs/MecanixDev/config-test.json
riocore/boards/MecanixDev/board.json
riocore/configs/MecanixDev/config-test.json
riocore/boards/MecanixDev/board.json
Attachments:
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31 Jul 2024 17:18 #306548
by Mecanix
Let me learn what you've done for yourself and all of us first. This will require time on my side, but will be worth it I have a feeling - "it works" (see visual)!! I'll update on progress and hopefully can contribute what was done at my end. Interim, let me know if you need the sources/gerber/bom/anything for the dev board in use. Better yet, let me know what else could potentially go on it to make it a "RIO-BOARD" (RTL8111H?!) and I'll see what I can do.
Replied by Mecanix on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)
One word, Oliver; EPIC.copy a similar one and adjust the values (type/clock-speed and pin).
Let me learn what you've done for yourself and all of us first. This will require time on my side, but will be worth it I have a feeling - "it works" (see visual)!! I'll update on progress and hopefully can contribute what was done at my end. Interim, let me know if you need the sources/gerber/bom/anything for the dev board in use. Better yet, let me know what else could potentially go on it to make it a "RIO-BOARD" (RTL8111H?!) and I'll see what I can do.
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31 Jul 2024 17:41 #306549
by Mecanix
Explains why I couldn't find it locally lol. Let's try that again.
Replied by Mecanix on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)
Stupid me... I could have cloned/checkout the 'dev' branch rather than main and use what you've done already.I'm sorry, I was a bit bored
riocore/configs/MecanixDev/config-test.json
riocore/boards/MecanixDev/board.json
Explains why I couldn't find it locally lol. Let's try that again.
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