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The Ethernet chips on the mesa cards use a 16 bit bus, thought I'd mention this as you mentioned MII. From what I understand MII is supposed to be a more or less generic communication interface.

But I can get confused with these things .

Sad to say but the Aussie Gumbernment, being advised by an unelected eKaren who's main job was the keep the kids safe from rock spiders, is also responsible for this mess.
Honestly since the only reason I watch Foxtel, cable tv to our north American cousins, is to watch the MotoGP, WSBK and other bike racing, I had a YouTube Premium subscription for a few years now, maybe pre coof years. So I don't have an issue with signing in.
I think I may have seen some free to air tv a year or so ago, I lost 3/4 of my IQ felt the urge to be some crocs and a Ford Ranger and listen to Triple M on the radio...luckily I can neither afford a Ford Ranger nor a pair of crocs.

RIO now actually consists of two projects:

1. Configuration front end with HAL/INI generator

2. FPGA gateware generator


In Rio, there are now two ways to use a Mesa cards:

1. with RIO firmware/gateware (FPGA gateware generator)

Unfortunately, only those with an SPI interface. I will try again to build something that works with the MII chips when I get the chance, but it may take a while.

2. Original hm2 firmware (HAL/INI generator)
Still being tested. At the moment, only the 7c81 is supported, as I have this at home. Next will
be the 7i92.
This should actually support all cards, but in order to configure them correctly in the flow tool, you have to enter all pin positions into a file, which is simple but time-consuming.


I have already ordered a 7i92 clone from China.

If people wish to swallow the continued escalation of data mining of the populus and participating
in police states. that is for them to decide.

  But to put it simply rodw you don't have to log into forums to READ the information. At least not yet.
I wont be surprised if that changes soon as well. You know for the kids. Wont somebody please think
of the Children. So why Should I have to log in to VIEW a video, that's my point.
I am tired of the increasing collection of data on everyone not just me.
I may not be able to stop the big machine, But I don't have to help it along either.

Be in the directory were you have downloaded cia402pv.comp
and there do "sudo halcompile --install cia402pv.comp"

Easy to spot with the error messages, that helps a lot.

The post I put earlier was from trying to install the package manually, by
Trying to install from the Linuxcnc repos would break the build. And to be honest I think the Release may only reference the doc files. I'd have to check my notes for sure on that one. I may be wrong but I remember having a look through it.

The biggest issue would be a driver for the ethernet chip.
The mesa firmware uses a softcore (think very basic CPU) and that runs assembly language program to do all the hard lifting.
Ollie's original aim was to not have a softcore so there was virtually no jitter. I pretty sure I have this right.
To get this done I really think Ollie would need a 7i92 to do this.
The 7c81 was a simple task as it already had SPI, the 7i90 would be easy as well.
The thing with the Spartan 6 it's picky regarding which pin is the system clock and which is the SPI clock. I had trouble with the 7c81 clone I was working as the pin used for the system clock was different on the dev board I was using to the original mesa one.

Now that is not to say Ollie could not do it. If he could that would be pretty awesome as I have a couple of the Ethernet chips the 7i92 uses. Microchip offers free samples of their products.

This Chinese BOB has 0-10v analog output. The price varies greatly $5 - $15.

I think you need a preferences file to pin the linuxcnc repo files in /etc/apt/preferences.d that looks something like
github.com/LinuxCNC/linuxcnc-live-build/...c-uspace.pref.chroot

First of all, thanks a lot for all the work you put into this project, it’s clearly helping a lot of users, especially when it comes to building and customizing configurations.

I’m currently using a Mesa 7i92m. While the standard firmware works fine, making configuration changes on it can be quite cumbersome. It looks like RIO could make things a lot easier.

Could you maybe share some guidelines or pointers on how to get it working on this board, or how to port it?

PCW wrote:

My guess is that their suggestion is to improve latency  of everything except
Ethernet on their isolated core by keeping Ethernet IRQs off the critical CPU.



 

Yes, some said that latency spikes from the NIC housekeeping etc could interfere with the RT task.

my1987toyota wrote:

  Well looks like YouTube has finally done it . They are now making you sign in to watch ANYTHING . At least in the USA,
I don't know about everywhere else.  That said I will be shutting down my channel so all my video's I have links too on
this site and elsewhere will soon be dead.
There excuse is preventing Bots from clicking on video's  Funny they don't seem to have a problem with all the A.I. 
slop that has proliferated the site.

 

If i remember right this has to do with age verification and other new laws passed in the usa.
I am always logged in by default on my pc and phone, but my table has no account and does not cause any issues (actually its got less ads!)

But also as above, how would you expect to have a channel without logging in? Weird reference to make.

I have looked on availbale logic and its signals.
So could it work if firmware is made from regular configuration for a test to have one quadrature encoder and one uart, and I could tight pins together outside of fpga.
Think that only A line is used for uart.
So both components will recieve uart data and then after uart is recieved I could just flush/reset/set to zero quadrature encoder pulse accumulator and continue from this state.
Would this work?

I'm lost about your expectations. You have to log in  as a YouTube  user to post a video to your channel and you have to log in to post comments on my videos so what's wrong with being logged in to view stuff? At least YouTube can recommend videos to you...

Still poking cause this is bugging me. Instead of telling chatgpt to make me code, instead I asked it why it's broken.

What it tells me is that motion.spindle basically doesn't work with modbus directly and pins wont be created and there's no simple automagic way to have m commands work out of the box.

It says this is a limitation of axis (what I have it running while I'm testing) and QT dragon doesn't have this limitation.

Before I follow it down another hole, does this sound like its correct? I want qtdragon anyway, it just was not installed because I did this all from scratch.