help - the processor isn't booting any more

[whoopy]

I had the r2c2 board running at the weekend, I'm at the stage of trying to get my Prusa to lay it's first filament on the bed and I'm trying to get my head around all the Skeinforge settings.

But ... after startn things up and seeing the two temperatures start to rise in ReplicatorG control panel (I think I might have been pluggng my laptop into the AC supply at the time but otherwise can't think of anything else that might of glitched it) then everything stopped working.

All I have is a yellow power indication next to the USB connector and all four motor LEDs are on (the limit LEDs still light if I push the axes to the end by hand but that is al)l.
I have established that it has 3.3V on the through-hole points above the motor heatsinks and I have 5V on the big green terminal by the fan connectors,,
but there is no beep or any change in state when pressing the reset button.

I started off looking at the reset line with a scope but that seems to stay at low level the whole time,
(whereas in comparison the signal from the boot switch is a good high and low),
not sure where to look for clock signals and are there any other basic diagnostic test I can do ?

Is there a schematic available somewhere ?

Simon

[Nicolas Chaslot]

Hi simon,
Hi had the same problem with my first board. At the time, I send it back an Jorge gave me a new one, but with the time I lean that first you can try to reflash the firmware with the one one github (look on the r2c2 website of you don't know how to do that :)
Nick

Envoyé de mon iPhone

[Chaslot Nicolas]

Hi everybody!
today i wanted to try my first personal (no raft and full solid infill)
profile for skeinforge, due to my new print project (a quadricopter)

I went on the editing profile menu, and desactivate the raft (don't
understand how to select full solid infil, a skeinforge simplification
would be so great!!), but when i tryed to print, i have a lot of
problems... The movements of the printer are completely out...

if someone as a worgking profile with no raft and full solid for a prusa
mendel, that would be great!
thanks

[Jorge Pinto]

> All I have is a yellow power indication next to the USB connector and all
> four motor LEDs are on (the limit LEDs still light if I push the axes to the
> end by hand but that is al)l.
> I have established that it has 3.3V on the through-hole points above the
> motor heatsinks and I have 5V on the big green terminal by the fan
> connectors,,
> but there is no beep or any change in state when pressing the reset button.

Seems the firmware is not running. I would try to enter on the
bootloader mode and if it enter, then try to flash the firmware:
http://www.3dprinting-r2c2.com/?q=content/r2c2-usb-bootloader

> I started off looking at the reset line with a scope but that seems to stay
> at low level the whole time,
> (whereas in comparison the signal from the boot switch is a good high and
> low),
> not sure where to look for clock signals and are there any other basic
> diagnostic test I can do ?
>
> Is there a schematic available somewhere ?

Here are the sources for the schematics (including a PDF of
schematic): http://www.3dprinting-r2c2.com/?q=content/development

--
Jorge Daniel Pinto
+351 927 145 983
jpi...@bitbox.pt

www.bitbox.pt
IEUA - Universidade de Aveiro
Portugal

[Chaslot Nicolas]