[Microbit-Python] Repl not echoing back
Naomi Ceder
naomi.ceder at gmail.com
Wed Dec 30 17:40:35 EST 2015
Hi Marc,
That board (and another with some issues) is already in the hands of people
with microscopes who will be better able to figure out what's going on. But
if I still had it, I would definitely try your suggestion. For a while I
suspected physical damage to the board was the cause, but I never could
find that.
Cheers,
Naomi
On 30 December 2015 at 16:34, M.-A. Lemburg <mal at egenix.com> wrote:
> Hi Naomi,
>
> even though this all sounds very much like a hardware
> problem, you might want to try reflashing the DAPLink
> firmware which implements the serial console USB connections:
>
>
> https://www.mbed.com/en/development/hardware/prototyping-production/daplink/daplink-on-kl26z/
>
> Cheers,
> --
> Marc-Andre Lemburg
> eGenix.com
>
> Professional Python Services directly from the Experts (#1, Dec 30 2015)
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>
> On 14.12.2015 00:42, Naomi Ceder wrote:
> > Yep, those suggestions make sense. I particularly like the Michelle idea.
> > :-)
> >
> > Since Mary is functioning in all other respects I'll keep her here for
> > hacking until the others safely arrive.
> >
> > Cheers,
> > Naomi
> >
> > On 13 December 2015 at 03:23, Nicholas H.Tollervey <ntoll at ntoll.org>
> wrote:
> >
> >> Folks,
> >>
> >> Poor old Mary micro:bit... my (wife) Mary is going to be heartbroken
> >> that her namesake has a bad case of the collywobbles.
> >>
> >> Here's what I suggest:
> >>
> >> * We "retire" Mary - can you post her back to me and I'll make sure it
> >> gets to Jonny at ARM who'll be interested in such hardware failures?
> >>
> >> * We "promote" one of the new boards heading in your direction to the
> >> world tour. Given this is a US based series of events I propose we name
> >> the new micro:bit in honour of the FLOTUS: "Michelle micro:bit". :-P
> >>
> >> * Naomi, can you write up how Mary got "sick" and ping me a PR for the
> >> website? I'll add a note to explain the appearance of Michelle and then
> >> we can let the tour continue.
> >>
> >> Sound like a plan?
> >>
> >> N.
> >>
> >> On 13/12/15 01:33, Naomi Ceder wrote:
> >>> Hi Carol,
> >>>
> >>> I just tried picocom with exactly the same results - I'm still on
> >>> yosemite, but getting the same behaviour on 5 terminal programs and two
> >>> different OS's I'm going to say the issue is the device at this point.
> >>>
> >>> Cheers,
> >>> Naomi
> >>>
> >>>
> >>> On 12 December 2015 at 17:27, Carol Willing
> >>> <willingc at willingconsulting.com <mailto:willingc at
> willingconsulting.com>>
> >>> wrote:
> >>>
> >>> Hi Naomi,
> >>>
> >>> Perhaps a shot in the dark, did you try picocom? picocom
> >>> /dev/ttyACM0 -b 115200 Replacing with the correct port. I've used
> >>> with the Mac Pro. I'm still running Yosemite. Are you on El
> Capitan?
> >>>
> >>> You could try getting rid of any cruft of old USB /dev/tty files.
> >>>
> >>>
> >>> Damien, Does the microbit have a hard reset by pulling a GPIO pin
> >> low?
> >>>
> >>>
> >>>> Naomi Ceder <mailto:naomi.ceder at gmail.com>
> >>>> December 11, 2015 at 7:37 PM
> >>>> Hi everyone,
> >>>>
> >>>> I'm having a very weird issue with Mary the micro:bit.
> >>>>
> >>>> It had been working fine... until I was about to demo before the
> >>>> Chicago Python group (ChiPy) last night.
> >>>>
> >>>> Then suddenly the repl wouldn't work. That is, I could apparently
> >>>> connect, I could type commands in, the LED on the microbit would
> >>>> flash as normal, but nothing was echoed back. I could put scripts
> >>>> on the flash and the would run normally, but after trying 3
> >>>> different terminal programs (all of which had worked before),
> >>>> still no joy.
> >>>>
> >>>> Tonight I've been experimenting more and I can confirm that the
> >>>> commands I'm entering do get to the microbit and are executed as
> >>>> normal. Even arrowing up and tab completion are working normally,
> >>>> but nothing gets sent back to my screen.
> >>>>
> >>>> I've mainly kept the comm settings at what worked well before
> >>>> 115200, N-8-1 and I might add that I've used 2 or 3 different
> >>>> versions of the firmware with the same reaction, two different USB
> >>>> cables, a lot of swearing, and I'm sort of at wit's end.
> >>>>
> >>>> Has anyone else encountered this? Is there something obvious that
> >>>> I'm missing? Or something mysterious that I need to know? Or is it
> >>>> just a wonky micro:bit. I honestly didn't do a thing to it from
> >>>> when it worked fine until when it didn't, and it strikes me as a
> >>>> bit odd that it will do everything as before, EXCEPT echo the
> >>>> characters back to the terminal.
> >>>>
> >>>> Halp?
> >>>>
> >>>> Thanks,
> >>>> Naomi
> >>>>
> >>>>
> >>>> --
> >>>> Naomi Ceder
> >>>> https://plus.google.com/u/0/111396744045017339164/about
> >>>> _______________________________________________
> >>>> Microbit mailing list
> >>>> Microbit at python.org <mailto:Microbit at python.org>
> >>>> https://mail.python.org/mailman/listinfo/microbit
> >>>
> >>> --
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> >>> <
> >>
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> >>>
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> >>>
> >>>
> >>>
> >>> --
> >>> Naomi Ceder
> >>> https://plus.google.com/u/0/111396744045017339164/about
> >>>
> >>>
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> >>>
> >>
> >>
> >>
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> >>
> >
> >
>
--
Naomi Ceder
https://plus.google.com/u/0/111396744045017339164/about
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