7i76e was working, now CR1 LED does not go off

Is there a way to debug what is going wrong during the startup of Linuxcnc? Why does the init fail at 7i76e? We now know the eeprom isn't corrupt, but when linuxcnc is starting up, I guess a startup sequence is initiated in the 7i76e. Can I get a log out or similar?

/INIT _and_ /DONE going on at power up is a indication of failure to load the FPGA
(bad CRC for example)

/INIT going on by itself is an indication of

1. Watchdog bite or
2. Some kind of protocol or packet error

I have ordered a 7i96 so this problem doesn't delay me too much.
If it is a latency or a packet issue, i guess the 7i96 should have problems also.

My guess is, the 7i76e simply semi-died on me - a 5V power spike or something. The New card will be protected by opto-isolators and a high quality power supply

Looking into this further I think its possibly a firmware issue
(If I use the older firmware on the website I get the same behavior)

What actual functional problems do you have with the card?
(I think the Init LED issue has always been there with certain firmware/LinuxCNC versions)

Here is an updated version that should leave /INIT off

freeby.mesanet.com/7i76e_7i76x1D.bit

Does it make sense to load it to my working 2.8 vers also is seem to have no problems?
Thx Mike

I dont think the LED actually indicates a serious problem here so really no need to update (unless you want the LED as watchdog indicator to work properly)

Thx Peter
Nop LED is not important, hidden in case anyhow

Thanx, I will test this version when I get home from work later today (I will follow this guide, as I have never done it before: github.com/PeterMue/ZX45-LinuxCNC/wiki/Mesaflash). Please confirm that I need to update the fallback section first - or should I boot from the fallback section and update the main section?

My functional problems are that nothing seems to work anymore. After starting linuxcnc, and the CR1 LED goes on, I disable the emergency stop button, enables the machine and try to manually jog an axis. But the three stepper drivers never gets the enable signal (Red led on DM542A drivers never go green as they normally do) and nothing happens. Linuxcnc animates the movement on screen.
I will try to put a scope on the logic signals, as my problem of course could also be three dead stepper drivers, although the CR1 led indicates otherwise.

I dont think CR1 is meaningful in this case

I would check the individual signals to the step drives

I downloaded the .bit file PCW included a link to and executed the following command:
sudo mesaflash --device 7i76e --addr 192.168.1.121 --fallback write 7i76e_7i76x1D.bit

and got this reply: "ETH device 7I76E-16 at ip=192.168.1.121".
Not what I expected?