hm2 BSPI documentation, examples?
04 Aug 2023 22:25 #276938
by PCW
Replied by PCW on topic hm2 BSPI documentation, examples?
Do you have a stock 7I92?
It could be 7I92T related but I doubt it since it works here
It could be 7I92T related but I doubt it since it works here
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04 Aug 2023 23:02 #276943
by PCW
Replied by PCW on topic hm2 BSPI documentation, examples?
I take that back, the earlier 7I92T firmware with the /frame output works
but the 3a version does not
Do you have a 7I92 to test with, There looks to be a problems with the
BSPI firmware on the 7I92T after I made the DBSPI (decoded) /BSPI (non-decoded) merge
but the 3a version does not
Do you have a 7I92 to test with, There looks to be a problems with the
BSPI firmware on the 7I92T after I made the DBSPI (decoded) /BSPI (non-decoded) merge
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04 Aug 2023 23:09 #276944
by blazini36
Replied by blazini36 on topic hm2 BSPI documentation, examples?
I never thought I'd be so happy to hear something doesn't work, I can stop tearing stuff up now lol.
No I don't have a 7i92, I only have the 7i92th with modified headers.
No I don't have a 7i92, I only have the 7i92th with modified headers.
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05 Aug 2023 00:09 #276948
by PCW
Replied by PCW on topic hm2 BSPI documentation, examples?
Try this firmware:
I thought I had weeded them out but there were some left over
Xilinx-isms in the bufferedspi firmware module.
I thought I had weeded them out but there were some left over
Xilinx-isms in the bufferedspi firmware module.
Attachments:
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05 Aug 2023 00:28 #276949
by blazini36
Replied by blazini36 on topic hm2 BSPI documentation, examples?
CLOCK!!!!!
I don't see anything printing in the terminal, did you have to do anything to get it to print the echo?
I don't see anything printing in the terminal, did you have to do anything to get it to print the echo?
Attachments:
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05 Aug 2023 00:33 #276951
by blazini36
Replied by blazini36 on topic hm2 BSPI documentation, examples?
nevermind, I get the exact same prints you did but it took a bit to start
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05 Aug 2023 00:37 #276952
by blazini36
Replied by blazini36 on topic hm2 BSPI documentation, examples?
BTW, small request. Since the firmware makes it's way into the mesanet archive any chance you can name it ST-PnP-BoB or something? I have all my stuff for this in a git repo GPL2. Not sure anyone who may look for it will find it as blazini.
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05 Aug 2023 00:49 #276953
by PCW
leftover from when Sebastian etc were working on it.
Replied by PCW on topic hm2 BSPI documentation, examples?
There must be some debug code embedded somewhere, maybe anevermind, I get the exact same prints you did but it took a bit to start
leftover from when Sebastian etc were working on it.
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05 Aug 2023 10:57 #276988
by blazini36
Replied by blazini36 on topic hm2 BSPI documentation, examples?
It must be my lucky day....
I checked the site for the mini-PC manufacturer and they had a newer bios, didn't think it would help but couldn't hurt.....
No issues with 1ms servo-thread now (was running 2ms and getting complaints about realtime delays). I haven't done any tweaking yet and the bios is pretty limited but I can live with 1ms if I can't get it any better.
I checked the site for the mini-PC manufacturer and they had a newer bios, didn't think it would help but couldn't hurt.....
No issues with 1ms servo-thread now (was running 2ms and getting complaints about realtime delays). I haven't done any tweaking yet and the bios is pretty limited but I can live with 1ms if I can't get it any better.
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09 Aug 2023 08:15 #277409
by blazini36
I can't find any info suggesting SPI lines should be driven externally , though it probably won't hurt to have resistor footprints on the PCB
Replied by blazini36 on topic hm2 BSPI documentation, examples?
I have to revise the PCB again at some point, do you suggest I use pulldown resistors on the SPI lines (besides enabling the 4.7k networks on the 7i92)?Does the pin list linuxcnc prints at startup look reasonable?
Are the CS and SCLK pins driven? (pull down with a 1K resistor)
I can't find any info suggesting SPI lines should be driven externally , though it probably won't hurt to have resistor footprints on the PCB
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