LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)
02 Aug 2024 19:28 #306785
by meister
Replied by meister on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)
my professional test setup
why didn't I try this before
i am sooo stupid, well, at least i realized it at some point
now i can also increase the SPI speed and in python the looptime dropped from ~0.88ms to 0.42ms
the problem was, when checking whether a new packet was received, the size was also read out, if this check happened exactly during the transmission and the packet was not yet 100% there, the size was not correct and the check failed
a second before i wanted to send this message, there was a timeout, but ok, this is running over my home network, so it can happen, but it has become extremely good now, i have to let it run isolated for a while.
thank you all, if i hadn't kept asking, i would probably have resigned myself to the esp32 solution
why didn't I try this before
i am sooo stupid, well, at least i realized it at some point
now i can also increase the SPI speed and in python the looptime dropped from ~0.88ms to 0.42ms
tx (280): [116, 105, 114, 119, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 70, 5, 0, 0, 0, 0, 0]
rx: [97, 116, 97, 100, 151, 2, 0, 0, 0, 0, 0, 0, 31, 202, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
0.8819103240966797tx (280): [116, 105, 114, 119, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 70, 5, 0, 0, 0, 0, 0]
rx: [97, 116, 97, 100, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
0.4222393035888672the problem was, when checking whether a new packet was received, the size was also read out, if this check happened exactly during the transmission and the packet was not yet 100% there, the size was not correct and the check failed
a second before i wanted to send this message, there was a timeout, but ok, this is running over my home network, so it can happen, but it has become extremely good now, i have to let it run isolated for a while.
thank you all, if i hadn't kept asking, i would probably have resigned myself to the esp32 solution
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02 Aug 2024 19:29 - 02 Aug 2024 21:53 #306786
by meister
EDIT: >140 minuted later , 5 lost packages of >8400000 that's ~0.00006% package lost
hmm, i think it's ok
Replied by meister on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)
EDIT: >140 minuted later , 5 lost packages of >8400000 that's ~0.00006% package lost
hmm, i think it's ok
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02 Aug 2024 19:59 #306797
by tommylight
Replied by tommylight on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)
Who turned the light off?
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03 Aug 2024 13:46 #306844
by Mecanix
Replied by Mecanix on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)
Tests carried. Tested onto my production Lcnc-uspace computer which host a high performance r8169 ethernet adapter. Same I use for my gigabit based lathe (LiteXcnc). Yet I'm unable to have Rio working on this one 
Strangely enough, I get zero pkt losses and a fast ping response from the wizzy part on that computer. As if it likes it very much! Therefore fair to assume I'm connected solid.
So upsetting to see Rio working for others, but not for myself. I smell badluck arrggh
HELP, calling the Godz!!
Strangely enough, I get zero pkt losses and a fast ping response from the wizzy part on that computer. As if it likes it very much! Therefore fair to assume I'm connected solid.
So upsetting to see Rio working for others, but not for myself. I smell badluck arrggh
HELP, calling the Godz!!
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03 Aug 2024 14:34 - 03 Aug 2024 14:35 #306846
by Mecanix
Replied by Mecanix on topic LinuxCNC-RIO - RealtimeIO for LinuxCNC based on FPGA (ICE40 / ECP5)
Yes I did.
I've seen you made changes to your repo and so I've deleted everything locally and started fresh from scratch. Git re-cloned everything, recompiled the gateware, flashed to fpga, halcompile --install rio.c, then copied over the Linuxcnc config files. E v e r y t h i n g brand new!!
That way I ensured everything was fresh as you left it after your mods and tests yesterday. Even went and get the prod computer to test fresh onto.
Saturday's Evils I tell ya lol Trust it's a good day to panic!
Funniest thing is it works(ish) onto the PC I dev onto. That PC can't be used with Lcnc because of the crappy ethernet adapter... one of those affected realtek nic. At least I'm not getting this bad header error onto this PC. So weird... totally lost
I've seen you made changes to your repo and so I've deleted everything locally and started fresh from scratch. Git re-cloned everything, recompiled the gateware, flashed to fpga, halcompile --install rio.c, then copied over the Linuxcnc config files. E v e r y t h i n g brand new!!
That way I ensured everything was fresh as you left it after your mods and tests yesterday. Even went and get the prod computer to test fresh onto.
Saturday's Evils I tell ya lol Trust it's a good day to panic!
Funniest thing is it works(ish) onto the PC I dev onto. That PC can't be used with Lcnc because of the crappy ethernet adapter... one of those affected realtek nic. At least I'm not getting this bad header error onto this PC. So weird... totally lost
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