On Monday 08 May 2017 11:20:43 Peter C. Wallace wrote:

Alright Peter & Andy, the cheese just got a little more binding.

I have 2 7i90's that have now verified according to 7i90_spi_svst4_8.bit, 
and a brand new one I just wrote with that file, it verifies also if I 
do a powerdown, set W3 down, power it up, move w3 back up and then 
verify it.

All 3 give this same error.

I also killed at least an hour because the 7i90HD manual's example 
mesaflash invocations are WRONG, the "--port" option is "--addr" in my 
copy of mesaflash. I even rang out the interconnect cable & found it 
good, twice! It would be very nice if that .pdf matched the software 
shipping.


> On Mon, 8 May 2017, Gene Heskett wrote:
> > Date: Mon, 8 May 2017 10:30:53 -0400
> > From: Gene Heskett <[email protected]>
> > Reply-To: "Enhanced Machine Controller (EMC)"
> >     <[email protected]>
> > To: [email protected]
> > Subject: Re: [Emc-users] stracing why linuxcnc will not run
> >
> > On Monday 08 May 2017 08:37:17 andy pugh wrote:
> >> On 6 May 2017 at 17:48, Gene Heskett <[email protected]> wrote:
> >>> Unknown board: HOST????
> >>> hm2_rpspi: rtapi_app_main: Operation not permitted (-1)
> >>>
> >>> Could this be an indicator of a total failure of the 7i90 card?
> >>
> >> I didn't think so.
> >>
> >> https://github.com/LinuxCNC/linuxcnc/blob/master/src/hal/drivers/me
> >>sa- hostmot2/hm2_rpspi.c#L295
> >
> > Now we are getting somewhere, thats precisely the code that would
> > spit this out, thank you very much Andy.
> >
> >>  It reads 8 characters from 0x40c using the SPI interface, so the
> >> 7i90 is talking, but it seems to be saying "HOST????" rather than
> >> "MESA7i90"
> >>
> >> Maybe a funny firmware? Maybe a wrong assumption by the driver?
> >
> > This sounds like I should take that card back to the old Dell with a
> > parport cable hanging out of it, plug it in. Move the jumper that
> > makes it boot from the backup firmware, which will re-enable the
> > parport, power it up, put the jumper back, and re-flash it again?
>
> Reflashing with the same bitfile is very unlikely to make any
> difference. The FPGA CRC checks the bitfile on loading and if it has
> an error it will not load (and you will get  red /INIT and /DONE LEDs)

So that never was it.

Whats next?  Or do I go fishing until the intel atom based pi lookalike 
arrives from Taiwan?  According to the shipping notice, s/b by the end 
of the week.

Peter, do you have 3 of those 7i44TA's (breakout/protective boards for 
the 50 pin using interfaces) and 3 AIO cables about 6 or 7" long? I 
won't need a foot, no room to fold up the surplus neatly. 6" may even be 
too long. Since I can install the connectors, 2 feet of cable and 6 
loose connectors might be best.  Or should a hit digikey for those?

I'll turn my just started to drill holes and mount stuff build pattern 90 
degrees so theres room to stack the 7i44TA's up in a staggered format 
off the end of the 7i90 so the terminals of all 3 boards are accessible.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>

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