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| 00:34.09 | asbokid | Hello! Jason Hecker (JWhecker) suggested that I ask my JTAG question here. so here goes! we would like to JTAG a device based on the LEXRA 4189. It supports only EJTAG 2.0, for which the specifications are not published. As such, we can find no open source JTAG programming tools. Does anyone have suggestions, please? |
| 00:44.18 | roxfan | i think Hairydairymaid tool is supposed to support that |
| 00:46.37 | asbokid | Hi roxfan. I think they tried the hairydairymade, but to no avail :-( |
| 00:46.46 | asbokid | *maid, even.. I will just go and check.. |
| 00:47.37 | roxfan | well it might need some adjustment to support your specific chip/board |
| 00:49.01 | asbokid | hi.. no they couldn't get hairydairymaid to work... |
| 00:49.01 | asbokid | http://translate.google.com/translate?hl=en&sl=es&u=http://foro.seguridadwireless.net/livebox-2/pinout-y-avances-sobre-jtag-enlbv2 |
| 00:55.30 | asbokid | i've had a quick browse of the source code for H.D.M. it's pretty dated now, circa 2006.. can't see any immediate signs of support for EJTAG 2.0. The JTAG register set of the Lexra 4189 is completely different to the set usually found in a EJTAG-compliant device. It has only one 32-bit register (for IDCODE). The other registers are either 1-bit or 150+ bits. We guess these large registers must be concatenations of smaller regis |
| 00:55.30 | asbokid | ters. Nothing is documented though. The Lexra datasheet is 'pants'. |
| 00:56.27 | asbokid | incidentally, wookey_ ... have you done a lot of work on flash file systems? |
| 01:02.08 | asbokid | anyway. bed beckons.. if anyone reads this in the morning and knows of working JTAG s/w (proprietary or open-source) for the Lexra 4189, then please drop me a line :-) ballymunboy@gmail.com |
| 01:02.24 | asbokid | thank you. good night |
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| 01:40.56 | roxfan | the large register is most likelt the boundary scan |
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