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On 12/15/2012 2:17 PM, Anders Wallin wrote:
> with the hostmot2-firmware-3x20-1 deb package installed from
>> www.linuxcnc.org and trying 3x20-small.ini I now get 
>> http://pastebin.ca/2293883

Thanks for the feedback.  From your pastebin, it appears the card is
being found, but it is failing at the start of the FPGA configuration.

It looks like you must have a valid firmware file or you wouldn't be
getting as far as you are.  FYI, I haven't installed firmware via
packages...I just download the zip files from Mesa's website and
manually drop the files into /lib/firmware/hm2/...

> browsing the code, the relevant error message seems to come from 
> src/hal/drivers/mesa-hostmot2/hm2_pci.c where around line 446 it
> says " // Note that if we see DONE at the start of programming,
> it's most // likely due to an attempt to access the FPGA at the
> wrong I/O // location. "
> 
> this bit of code seems to talk about the 5I22 but not the 3x20. Are
> the I/O locations for these boards the same?

I haven't yet started crawling through the PLX data sheets, but the
reported resources in your pastebin are different from what I would
expect based on the 3x20man.pdf file from Mesa.  Regions 0-2 are all
three reporting larger than they should be in your pastebin, assuming
the data in the 3x20man file is correct.

As to the I/O layout being identical to the 5i22, it seems reasonable
the way the code is written, but without crawling the data sheets (and
maybe access to the board schematics) I'm not sure I can really
validate this one way or another.

Peter:
Are the 5i22 and 3x20 boards identical from an I/O and FPGA
programming point of view?

Should the hm2_pci driver from LinuxCNC 2.5 talk properly to the 3x20?

- -- 
Charles Steinkuehler
char...@steinkuehler.net
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