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Printrbot Talk Forum • View topic - Can't erase the firmware on Printrboard rev.D (solved)
Page 1 of 1

Can't erase the firmware on Printrboard rev.D (solved)

PostPosted: 2013-Aug-Thu-21-Aug
by Tdeagan

Re: Can't erase the firmware on Printrboard rev.D

PostPosted: 2013-Aug-Fri-21-Aug
by Tdeagan
This looks to be the same problem as described in this thread .

I hope I don't have to buy a special programmer, but that may be what's next.

Re: Can't erase the firmware on Printrboard rev.D

PostPosted: 2013-Aug-Sat-01-Aug
by ei8htohms
On the Rev. D board you have to install a boot jumper (I use an alligator clip actually) to get into bootloader mode. Then remove it and reset when done.

Re: Can't erase the firmware on Printrboard rev.D

PostPosted: 2013-Aug-Sat-01-Aug
by Tdeagan
Thanks,
I've had no problem getting into Bootloader mode. I verify with: Bus 005 Device 038: ID 03eb:2ffb Atmel Corp. at90usb AVR DFU bootloader from lsusb per docs. My problem is that the lock bits are set. But I've finally gotten the new firmware burned onto my Bus Pirate to let it talk to avrdude, so I should be able to clear them soon!!

Re: Can't erase the firmware on Printrboard rev.D

PostPosted: 2013-Aug-Sat-07-Aug
by ei8htohms
Glad to hear it. So when you said above "When I replace the BOOT jumper...", did you mean "remove.."? Just trying to clarify that our Rev D boards are the same in this regard. Thanks!

Re: Can't erase the firmware on Printrboard rev.D

PostPosted: 2013-Aug-Sat-12-Aug
by Tdeagan
For the Rev. D, the normal operation mode is no jumper. To enter BootLoader, a jumper is placed across the two pins. This is the opposite of all prior boards and causes no end to the amount of documentation grief. It's pretty straightforward in Linux to see the difference with lsusb (Response reads VOTI when in normal operation.) In windows, Flip just wont connect.

I'm struggling with determining how to clear the lock bits, I see lots of docs on how to clear fuses prior to installing a new bootloader. I'm not sure at all that this is the same thing.

Re: Can't erase the firmware on Printrboard rev.D

PostPosted: 2013-Aug-Sat-16-Aug
by Tdeagan