Philips DIT9719 jtag

Started by mikeprotts, 29. Feb 2008, 22:25

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mikeprotts

Hi,

Looking at the board I've identified likely spots for jtag and uart, but I've not worked out if anyone has used these yet.  If not I will try to check them to see if they are as expected.

Cheers
Mike

mce2222

you can verify if the expected jtag port is really jtag by checking the connection to the JTAG pins on the CPU. You find the information about the JTAG pins in the WIKI.

is0-mick

#2
21. Apr 2008, 21:42 Last Edit: 22. Apr 2008, 10:12 by is0-mick
Hi All,
I have traced the pins from the CPU as in the wiki to the headers on the board.

There is a Jumper marked 1304 (2 pins with a white box)
Pin 1 is Jtag enable (traced back to the chip) and pin 2 is 3.3v

The header just below this is the actual JTAG connctor, same pinouts as the one on the x300.


Here is a pic of my board..

http://i26.tinypic.com/2aa0zgo.jpg

Unfortunately I was unable to get an ID from the chip still?

It just returned all 000000000000000000's
not sure whats wrong.....

EDIT:
Tried a different PC and all works ok. Bootloader dumped :)

Mick

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