LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)

thank you PCW !

the Linear Scale works with quadencoder(z) plugin

but the part from my link is really cheap,
ok for playing around, but to use it properly, hmm, no

meister wrote:

new toy
works like a rotary-encoder, i think it should work in RIO

Haha that's so cool. Their output are indeed identical to those 90deg ABZ rotary encoder. Plugs right in your quadencoderz plugin and so no extra work required!

In the other RIO gossips; a brand new journey is about to begin!! However and before I begin routing this I wanted to poke your expertise and ask what would define a half-perfect RIO Motion Control Board. Is there anything fancy that we need on that other than the usual SPINDLE + MPG + XYZAB + Ins & Outs? 

Sorry, was busy



@Mecanix
nice board !, but i answer you tomorrow, need sleep now

>In the other RIO gossips; a brand new journey is about to begin!! However and before I
>begin routing this I wanted to poke your expertise and ask what would define a half-
>perfect RIO Motion Control Board. Is there anything fancy that we need on that other
>than the usual SPINDLE + MPG + XYZAB + Ins & Outs?

it always depends on the application,
as a universal board, I would say:

4 step/dir
4 inputs (selectable 24V/5V - Proximity Limit Switch)
1 encoder (for lathe / with differantal inputs)
> inputs (for estop/misc)
> outputs (cooling/spindle)
1 MODUS (vfd-spindle)
1 WS2812b (status display / only one pin needed)
1 PMOD header


I really like these connectors: www.reichelt.de/stiftleiste-2-pol-rm-3-5...rank&OFFSET=16&nbc=1
but it's a matter of taste

i think USB/Seriel is not necessary

the fpga on the tangnano20k has the same housing, if the pinout matches you could also use it !?!?!
not the same

EDIT: and it should work with cheap programmer like the USB-Blaster
 

i have noticed that you can also generate verilog with litex without soft-core. and that liteeth also supports UDP in hardware. I think it should be possible to build a UDP interface that runs on the Colorlite boards (and others) and can be integrated into RIO.

There are many supported FPGA's and PHY's: github.com/enjoy-digital/liteeth

meister wrote:

i have noticed that you can also generate verilog with litex without soft-core. and that liteeth also supports UDP in hardware. I think it should be possible to build a UDP interface that runs on the Colorlite boards (and others) and can be integrated into RIO.

There are many supported FPGA's and PHY's: github.com/enjoy-digital/liteeth

Would the Tang Primer 20k be a good candidate