Mesa 7i96 and LinuxCNC 2.8 PnCConf

Yes, that is a RTAI kernel and RTAI verison of linuxcnc, it wont work with the 7I96

Not sure if the mesaflash package is synced with linuxcnc, it may be necessary to build it from source if the latest LinuxCNC master does not reference the current version

PCW wrote: You need the latest mesaflash to deal with the 7I96
you might try re-fetching the package

Heres what the current mesaflash prints with a readhmid command:

File Attachment:

File Name: 7i96_2018-07-07.txt
File Size:5 KB

Thanks for the pinout Peter.
What is the ac ref pin for?

Chris M

Its part of the transformer coupled SSR hardware, nothing that hal need touch

oh great.
The SSR are just outputs as far as HAL is concerned?
Are the HAL pin names different from GPIO pin names?

Chris M

Yes, just outputs

hm2_card.c.SSR.ii.out-nn
card = card name
c = card number
ii = ssr instance (only 00 on a 7I96)
nn = output (00..05 on a 7I96)

Based on the print out and a bit of studying - I don't think pnccof's discovery option will ever be able to configure this card. The information from the readhmid just doesn't give enough required information.

eg p3's inputs components are called None, which up to this point meant they are configurable for input or output, but by the manual it seems only input is available (hardware limitation I imagine)
T2 and T3 are combined in the readhmid but broken out and mixed on the card and the pin numbers don't coincide with the physical pins so I can't sort it that way.

I'm not sure how to fix this problem besides hard-coding all that into pncconf which is a lot of work and a maintenance nightmare.

Chris M