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Printrbot Talk Forum • View topic - Trouble trying to load new firmware on my Printrboard

Trouble trying to load new firmware on my Printrboard

Troubleshooting talk for software

Trouble trying to load new firmware on my Printrboard

Postby brantm » 2012-Dec-Tue-19-Dec

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Trouble trying to load new firmware on my Printrboard

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Re: Trouble trying to load new firmware on my Printrboard

Postby lwalkera » 2012-Dec-Tue-20-Dec

You probably bought your board from someone other than printrbot, which means your board is loaded with the CDC bootloader, not the DFU bootloader. You'll need to use avrdude to load new firmware. Also note that the CDC bootloader is limited to 64k program size, compared to the full 128k in the DFU bootloader. If your firmware image is for more than 64k, you'll have issues.
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Re: Trouble trying to load new firmware on my Printrboard

Postby brantm » 2012-Dec-Tue-21-Dec

Thank you so much for the info. Yes, I bought the board from MakerFarm.

The hex file I created shows up as 132K in the Mac Finder, so I am guessing it would not load if I could load it.

Is it possible to change to the DFU boot loader (with the board I have)?

So, I would also need to find info for loading firmware with the CDC bootloader. I had been using instructions in the Printrbot Firmware Guide. Is it the case that these intructions only apply to boards with the DFU bootloader?
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Re: Trouble trying to load new firmware on my Printrboard

Postby lwalkera » 2012-Dec-Wed-13-Dec

The 64k limit is on the data encoded in the hex file, not the size of the hex file itself. You can change to the DFU bootloader if you have an AVR programming cable that can connect to the 6-pin ISP connector on the board. To load new firmware, you can use avrdude or a properly configured Arduino IDE. See http://reprap.org/wiki/Printrboard#Software for more info.
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Re: Trouble trying to load new firmware on my Printrboard

Postby Fahraynk » 2013-May-Fri-13-May

wow im also having issues uploading firmware to makerfarm board and there not much help either ! did you resolve this issue?
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Re: Trouble trying to load new firmware on my Printrboard

Postby bplemmons » 2013-Jul-Tue-12-Jul

I have been using the makerfarm install directions for cdc and trying to upload the firmware with Aurdrino and the plugins that are required. I am able to connect to the card but when it is done I get an error that says:
Avrdude error buffer memory access not supported.
How can I tell what firmware is actually on the card?

Bill
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Re: Trouble trying to load new firmware on my Printrboard

Postby Jacob » 2013-Aug-Thu-17-Aug

I am having the same issue with firmware upload. Seems easy enough in theory. On pc I am getting no usb found through flip...even though I manually loaded drivers on mac I am getting DFU-PROGRAMMER - NO DEVICE EXISTS even though I can connect to it through repetier.
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Re: Trouble trying to load new firmware on my Printrboard

Postby PxT » 2013-Aug-Thu-18-Aug

Sounds like you are not getting it into DFU mode correctly. Which revision printrboard do you have?
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Re: Trouble trying to load new firmware on my Printrboard

Postby KDog » 2013-Aug-Thu-23-Aug

I've been able to reflash my MakerFarm Printrboard many times using the Arduino software and a Mac. Some instructions tell you to remove or replace (depending on the board version) the jumper, reset the board and replace or remove the jumper again before flashing. I find that I need to flash before removing it again (I have revD). Arduino can't find my board otherwise.
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