Hey guys! I'm writing my final graduatition project and I'm developing a JTAG debugger for the ERESI framework. Right now, I'm on my initial research and need to find out how to bootstrap this. I'm planning on do the first version for ARM-JTAG (using LPC-E2124 board, an ARM7TDMI board). I would like to know if is there anything such as an open "libjtag" that I could use for this, or if you think that I will have to write it myself - implementing the arm-jtag protocol from scratch. Anyone could help on this or could point me anything/anyone?
I already had a good discussion about this on #openjtag, as you can see here: http://pastebin.com/m54f1618 . Looking at your documentation, I saw that I can interface with OpenOCD by using GDB protocol, but I was wondering if this shouldn't be too much slow. That's why I'm looking for this "libjtag". In summary, I want to access the on-chip debug module using the JTAG (arm-jtag) interface. By doing this, I want to use the ERESI framework to write a jtag debugger. I need a way to interface JTAG and ERESI. This lib would be this interface. Something like ARM7TDMI <--> LPCE2124 <--> OpenOCD <--> ??INTERFACE?? <--> ERESI Hope you can help me! Thanks in advance, Jesus Sanchez-Palencia (jeez)
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