7i80HD+7i48+7i42TA+7i84 Mesa firmware request (morbidelli author 503 retrofit)

  • freemoore
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13 Feb 2026 16:15 #342894 by freemoore
Hi PCW,Thanks for that. There's a problem with the sserial port; with the previous firmware (attached), the system as it's currently wired inc. the hal line:
loadrt hm2_eth board_ip="10.10.10.10" config="num_encoders=6 num_pwmgens=6 sserial_port_0=0000000" works and allows us to reference the 7i84 e.g.: hm2_7i97.0.7i84.0.3.output-00

Changing only the firmware to the one you posted above, lcnc fails to start with error:
twopass: Error in file ./morb01_IO_7i84.hal:
    Pin 'hm2_7i97.0.7i84.0.3.output-00' does not exist

this is with all wiring identical. close checking of the readhmid output and manuals suggests that the sserial port settings should remain the same - is this expected? 


 
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13 Feb 2026 17:09 #342895 by PCW
Sorry, mismatch between advertised clock and real clock
so the baud rates were all off...

 Denser configurations like this have a slower clock to meet timing
and this is the first time I have made on of these configs, and I had
not quite gotten al the ducks in a row...

This _should_ be better

 

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