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What I have is direct access to the four JTAG Interface pins on an Atmel CPU.
What I need is low-level C code to wiggle those pins and implement two functions:
ReadMemoryWord(address)
WriteMemoryWord(address, word)
Anyone done this before? Or can point me in the right direction?
I already have one answer: Read the IEEE spec. I’m hoping there’s a shorter path.
You could look through OpenOCD. I’m not sure if it’s a shorter path 🙂