Request for Mesa 5i23_7i48_7i52 firmware

Ah OK.
I've just checked the site and didn't realise that just buying an additional 7i52/7i52s or other daughtercard might be the easiest route when I come to need those additional steppers, I'd forgotten that they're not so expensive.
Please, in that case, could I have a firmware as described with 2 additional stepgens routed via the 7i52, and the remaining inputs configured for encoders?
Many thanks!

Here is firmware for a 5I23 + 7I48 + 7I52
with 2 stepgens and 1 PWMgen (PWM only no dir) on the 7I52
(and only one sserial port)

The spare inputs add 2 more encoders (so total of 14 encoders)
2 encoders are aliased so 16 show up but only 14 are usable

 

Thank you! I'm out of the workshop for the evening but that looks good, I'll try it out tomorrow. I should be able to use that PWM with the CW and CCW relays via the 7i84. Thanks again.
Andy

A couple more questions for thiis evening: which PWMgen setting will be needed for the 7i52 pwm? IIRC my main card, the 7i48, needed pwmgen type to be set to 2 - up/down mode.

Also, if I have 1 pwmgen pin, am I right in thinking that I have two ways to get bidirectional spindle control:

1 - set 50% duty cycle to mean 0rpm, less to mean CCW rotation and more to mean CW rotation with full speeds at 0% and 100% respectively, or
2 - use 0% to 100% and use a pin from 7i84 to set spindle direction?

thanks,
Andy

If your spindle control can set 0 speed as 1/2 way up PWM
than that should work but note that you will get full speed
when LinuxCNC is not running (since PWM would be off)
so you need a separate enable (perhaps from the 7I84).

This mode is supported in the hostmot2 driver for PWM as "offset mode"


 

On changing my ini file to try out this new firmware I get this error:
IDROM IOPorts is 3 but MD IOPort NumInstances is 6, inconsistent firmware, aborting driver load

I've created and attached the report file.