Mesa 5i25/7i77 - First Steps

That is to be expected, readhmid only looks at the 5i25 firmware, it has no way to know what smart-serial devices will be discovered when the system starts up.

To check everything separate from LinuxCNC open a terminal and:

That will load everything with default settings. You should see the 7i77 and 7i71 pins listed.

From the manual: "In normal operation CR9 must always be on. At power-up, CR32 should be off and CR33 on. At power-up, the red LED CR33 indicates a watchdog fault, which is expected before host communications are established. Once running, CR32 should blink at about 1 Hz for a 1 KHz update rate, and CR33 should be off. In setup mode CR32 and CR33 are both illuminated."

The commands above will always give a watchdog fault on all cards, as there isn't even a realtime thread running. If you want to check that the watchdogs go off then follow the above with
Note that you can use tab-completion to enter commands at the halcmd prompt, which saves typing and makes it more difficult to type typos.

You can use setp and getp to set and read HAL pins (and, in fact do anything else legal in a HAL file) at this point. Then type "exit" to finish.

Marki123 wrote:

I went through it again. After the command loadrt threads but always the mistake (could not insert module /usr/realtime 3.4-9-rtai-686-pae)

And then it says "File already exists" which means you have tried to load it twice (or, possibly, you are running the commands with LinuxCNC already running).