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

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7 years 7 months ago #130049 by macla
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

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7 years 7 months ago - 7 years 7 months ago #130050 by PCW
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
Last edit: 7 years 7 months ago by PCW.

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7 years 7 months ago #130053 by Mike_Eitel
Does it make sense to load it to my working 2.8 vers also is seem to have no problems?
Thx Mike

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7 years 7 months ago #130055 by PCW
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)

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7 years 7 months ago #130057 by Mike_Eitel
Thx Peter
Nop LED is not important, hidden in case anyhow ;-)

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7 years 7 months ago #130073 by macla
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.

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