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RPI4 + 7C81 + DMB4250-8B BreakOut Board

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5 years 8 months ago #200444 by brianvg
Replied by brianvg on topic RPI4 + 7C81 + DMB4250-8B BreakOut Board
Thanks PCW! I think that I am overthinking this a bit. I will trust that the correct pins map to their correct locations. I guess the final question is with regards to the usage of PNCconf. I have basically no idea what I should fill in here:

or here:


I don't understand how these map to actual db25 pins...

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5 years 8 months ago #200450 by PCW
Replied by PCW on topic RPI4 + 7C81 + DMB4250-8B BreakOut Board
The mapping of GPIO to DB25 pins is listed the the --readhmid output
The P3 (= 7C81 P1) mapping is correct but PNCCONF GPIO mapping on P2
(= 7C81 P2) will not line up so you probably need to do these by hand
connecting in the hal file

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5 years 8 months ago #200455 by cmorley
Replied by cmorley on topic RPI4 + 7C81 + DMB4250-8B BreakOut Board
can you post the --readhid file?

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5 years 8 months ago #200475 by PCW
Replied by PCW on topic RPI4 + 7C81 + DMB4250-8B BreakOut Board
I have added DB25 pin numbers to the drivers pin list, like this:

Code:
hm2/hm2_7i95.0: IO Pin 041 (P1-01/DB25-01): PWMGen #0, pin Out0 (PWM or Up) (Output) hm2/hm2_7i95.0: IO Pin 042 (P1-02/DB25-14): IOPort hm2/hm2_7i95.0: IO Pin 043 (P1-03/DB25-02): IOPort hm2/hm2_7i95.0: IO Pin 044 (P1-04/DB25-15): IOPort hm2/hm2_7i95.0: IO Pin 045 (P1-05/DB25-03): IOPort hm2/hm2_7i95.0: IO Pin 046 (P1-06/DB25-16): IOPort hm2/hm2_7i95.0: IO Pin 047 (P1-07/DB25-04): IOPort hm2/hm2_7i95.0: IO Pin 048 (P1-08/DB25-17): IOPort hm2/hm2_7i95.0: IO Pin 049 (P1-09/DB25-05): IOPort hm2/hm2_7i95.0: IO Pin 050 (P1-11/DB25-06): IOPort hm2/hm2_7i95.0: IO Pin 051 (P1-13/DB25-07): IOPort hm2/hm2_7i95.0: IO Pin 052 (P1-15/DB25-08): IOPort hm2/hm2_7i95.0: IO Pin 053 (P1-17/DB25-09): IOPort hm2/hm2_7i95.0: IO Pin 054 (P1-19/DB25-10): IOPort hm2/hm2_7i95.0: IO Pin 055 (P1-21/DB25-11): IOPort hm2/hm2_7i95.0: IO Pin 056 (P1-23/DB25-12): IOPort hm2/hm2_7i95.0: IO Pin 057 (P1-25/DB25-13): IOPort

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5 years 8 months ago #200487 by cmorley
Replied by cmorley on topic RPI4 + 7C81 + DMB4250-8B BreakOut Board
hmm that doesn't look like the usual --readhmid output.
Pncconf can try to piece together internal data from a --readhmid --sserial output.

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5 years 8 months ago - 5 years 8 months ago #200489 by PCW
Replied by PCW on topic RPI4 + 7C81 + DMB4250-8B BreakOut Board
That's the hm2 driver startup output

If the OP doesn't post a pinout file, I can do it tomorrow

(don't have a 7C81 or RPI at home, and stopping by work
this close to dinner time was vetoed by the boss)
Last edit: 5 years 8 months ago by PCW.

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