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Re: Bricked black Jaguar after bad firmware update
I think you will find the boot loader is still present as we have discovered on all of the "bricked" Jaguars that we have seen. It is in fact most likely just stuck in boot loader. Now this does not mean there is not a bug in the boot loader that is causing this behavior. This could be the result of some race condition or problem with the CAN layer of the boot loader. I have removed power in the middle of a re-flash several times without ever "bricking" a Jag. If your interpretation of the boot loader is correct this would definitely brick the Jag but it does not. Why do you think the block of RAM that the Bootloader is stored in is not protected? Is it because of the prompt in the bdc comm utility? The BDC comm could be giving you this warning because it is about to overwrite the boot loader. If this is the case a power cycle while updating the boot loader will absolutely brick the Jag. BTW "protection" simply means that the application cannot overwrite the block that the boot loader is contained in. It is still possible to access this block of memory from the boot loader its self.
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Mike Copioli
CTRE Hardware Engineer
http://www.ctr-electronics.com
Team 3539 The Byting Bull Dogs
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Last edited by Mike Copioli : 19-02-2010 at 11:52.
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