Hi Excito guys,
I'm thinking about do some testing with a new kernel on my bubba, but before i begin i want to make sure i have a way of fixing it in case i mess up and brick it.
Do you have the schematics for a JTAG cable that'll work with Bubba?
I've looked at different types, both buffered and unbuffered but am unsure which type to persue.
Any pointers would be nice
/Bjorn
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JTAG cable / Kernel upgrade
Hi,
We have been using TRACE32 from http://www.lauterbach.com for lowlevel development.
But this is a fairly exensive tool.
However the "wiggler" _should_ work, but we have not tested it.
Checkout this tutorial http://www2.amontec.com/sdk4arm/ext/jly ... 061124.pdf regarding setting up free tools to develop on arm based systems.
We have been using TRACE32 from http://www.lauterbach.com for lowlevel development.
But this is a fairly exensive tool.
However the "wiggler" _should_ work, but we have not tested it.
Checkout this tutorial http://www2.amontec.com/sdk4arm/ext/jly ... 061124.pdf regarding setting up free tools to develop on arm based systems.
Hi Björn,
Another way to reprogram the flash without a running system is to use the AT91's built in boot-loader. This however requires special software to run at your workstation, but requires nothing more in hardware than a slightly modified USB cable. We can release this software and a short howto if this would be of interest?
Another way to reprogram the flash without a running system is to use the AT91's built in boot-loader. This however requires special software to run at your workstation, but requires nothing more in hardware than a slightly modified USB cable. We can release this software and a short howto if this would be of interest?
/Johannes (Excito co-founder a long time ago, but now I'm just Johannes)
Hi again,
Yes, I am very interested in the AT91-bootloader stuff with modified USB-cable. If you were to supply some info on that topic i would be very happy, and i'll sure post my results on this forum.
Although i think i'll check out the JTAG as well. This is a great possibility to learn Thanks for the tips about the "wiggler".
Best Regards
Bjorn
Yes, I am very interested in the AT91-bootloader stuff with modified USB-cable. If you were to supply some info on that topic i would be very happy, and i'll sure post my results on this forum.
Although i think i'll check out the JTAG as well. This is a great possibility to learn Thanks for the tips about the "wiggler".
Best Regards
Bjorn
Yes please... I'd also be very interested in this.johannes wrote:Hi Björn,
Another way to reprogram the flash without a running system is to use the AT91's built in boot-loader. This however requires special software to run at your workstation, but requires nothing more in hardware than a slightly modified USB cable. We can release this software and a short howto if this would be of interest?
Colin
Ok, sorry for the delay, but now it's done. See this howto for details.
/Johannes (Excito co-founder a long time ago, but now I'm just Johannes)
Many thanks, I'll take a look...johannes wrote:Ok, sorry for the delay, but now it's done. See this howto for details.