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Where do I connect to the board?

Started by steff_dk November 9, 2007
On Sat, 10 Nov 2007 09:59:51 -0600, "steff_dk" <jsteffensen@gmail.com>
wrote:

>Ooh - I thought the big gray one was the microcontroller :o) >I gues that's some sort of off-chip memory instead. Then I'm dealing with >a NEC V850 ... >Why does it have to be special NEC dev tools? Cant a generic JTAG debugger >get the code, and then I can just disassemble it in IDA Pro 5.0?
You didn't read the documents I've provided the link for. This controller doesn't have JTAG but a proprietary ISP port, and IDA Pro won't know the V850 opcodes. This means you MUST have the NEC tools.
>From the link Frank-Christian provided I may alrady have that. >But that would mean taking the microcontroller off the board => risky >operation isn't it? I'm pretty sure that soldering it back on with my >skills will involve bridging at least 2-3 pins at a time ...
ISP means In-System programming, so the controller can remain on the board provided that the external connections to the ISP pins and to Vpp allow this. See document #3 from my link, chapter 17. Mit freundlichen Gr&#4294967295;&#4294967295;en Frank-Christian Kr&#4294967295;gel