Rambo firmware trouble - need hex dump from working board

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windex42
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Rambo firmware trouble - need hex dump from working board

Post by windex42 »

Hi,
I just finished building my Rostock Max v2 machine, and had trouble with loading the firmware onto the Rambo 1.3 board
When I manually installed the drivers, I got a code 10, the device could not start
I believe this is because the device that was showing up, the one I was loading drivers for was not the main chip mega2560, it was the small chip, atmel 32u2
I think I borked the Atmel 32u2 chip by flashing a bootloader to it through AVRDude
the bootloader I tried to load was from https://github.com/ultimachine/RAMBo/tr ... ootloaders" onclick="window.open(this.href);return false;
I think I've written the bootloader, but I cannot write code to the 32u2 chip. Also, I don't have any code that I could write to it.

I think I can get things going if someone could get a hex dump of their 32u2 chip
there's two sets of icsp pins, I need the code off the set on the left.

BTW, I sent an email to seemecnc support, I'm sure they can can get me going, but I'd like to get it going this weekend if I can.
geneb
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Re: Rambo firmware trouble - need hex dump from working boar

Post by geneb »

I /strongly/ suggest you go to the Arduino website and look up the proper procedure for loading firmware on to the 32u2 chip. Once you've un-borked that, then you should be able to load firmware normally.

The 32u2 chip acts as a UART - you can't specifically load drivers for that device. FYI, the "driver" is nothing more than a little text file. There's no actual code involved.

g.
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windex42
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Re: Rambo firmware trouble - need hex dump from working boar

Post by windex42 »

Thanks for the advice, Geneb.
I was able to find another website with more hex files specifically for the 32u2, but they don't quite work yet.
I'll keep working at it.
In the mean time, a hex dump from a 32u2 off a working rambo would still solve my problem.
windex42
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Re: Rambo firmware trouble - need hex dump from working boar

Post by windex42 »

I got my replacement board back from JJ, and everything is okay now. I dumped the hex files from the working board, but I'm pretty sure I'll never need them again.
gurusonwheels
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Re: Rambo firmware trouble - need hex dump from working board

Post by gurusonwheels »

can you please share the hex files. ive been looking hi and low
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