Question about custom BOB for a 7i92

Note that you could use a '125 (active low enables)
instead of the '126 to eliminate the inverter

Also you have the input/output swapped on the buffers MISO signal

PCW wrote:

Note that you could use a '125 (active low enables)
instead of the '126 to eliminate the inverter

Also you have the input/output swapped on the buffers MISO signal
 

Good catch, I just threw that together quick so I could try to understand the issue with the MISO buffer you mentioned and that symbol wasn't in the library.

good call on the '125 chip, I'll have to find some kind of resource for common ICs and their differences, like active low enables.

Also, I don't know if bspi is using active high or low to enable the decoder. I have the active high in use on that sheet. I'm planning to use the pull down jumper on both headers if that matters.

I'm also using the non-inverted output of the HC251 chip assuming that's what InMux is looking for, is that correct?

I think the frame default is active low
(though can be inverted in the hal file)

On the 251 I would use the inverted output
as the default is also active low

PCW, any word on that firmware?

Do you have a final pinout?