JTAG testpoints

[Midget_1990]

Well we found the JTAG points on the Universal. Many thanks to Lt.Cmdr.Ivan who gave up his time tracing them :)

Pics are here :

http://wiki.xda-developers.com/index.php?pagename=Universal_JTAG

Progress can be followed here:

http://www.htc-devs.com/forum/index.php?topic=87.0

[pof]

Congratulations!! Very well done :)

[Alex007]

Respect!

Nice thing for those people with damaged bootloaders...

@pof

Will this also help people (like me) with "NO GSM" problem?

Thanks for the good work!

[Sleuth255]

Just posting to register my shock and awe.

whew.... unbelievable tenacity required to produce this!

[sun123]

ALL
As this uses?
What Programa and cable?
I it is necessary urgently to restore my Universal :)
Thank you .

[Lt.Cmdr.Ivan]

Try to search the wiki for some info especially the wallaby section.

[azmo]

ok, what about JTAG for HTC Wizard - that might be very usefull :D

[azmo]

does anyone have input files for HTC Universal for any Jtag programmer ? For an example for an JKeys ?

[nefhamid]

hi;
good work, keep it up
good day

[unapproachable2kx]

Next time.. http://www.hackaday.com/2007/09/29/automatic-jtag-pinout-detection/

:)

[winxp845]

Great~So can I do experiment on Exec?~~~~_~~~~~

[scholbert]

Hi,

some time ago i did some further investigation on universal hardware.
I thought it could be interesting to know what's up with the rest of the debug connector. So here it is:


Pin Signal | Signal Pin
------------+------------
1 TDO | TDI 2
3 TMS | TCK 4
5 n_TRST | ??? 6 (probably connected to ASIC3)
7 GND | A9 8
9 A8 | A7 10
11 A6 | A5 12
13 A4 | A3 14
15 A2 | A1 16
17 ??? | n_OE 18
19 ??? | GND 20
21 GND | n_SRST 22
23 D15 | D14 24
25 D13 | D12 26
27 D11 | D10 28
29 D9 | D8 30
31 D7 | D6 32
33 D5 | D4 34
35 D3 | D2 36
37 D1 | D0 38
39 VCC1.8 | GND 40


For better orientation i attached again a small picture of this connector.
Upper right corner is pin 1.

As you might see there are still 3 unknown pins, wasn't able to trace them :p
Anyway maybe useful for someone out there!

EDIT: Updated address lines to 8Bit address scheme (formerly 16Bit addresses) :D

Regards,

scholbert

[gwaddell]

JTAG testpoints:
Can anybody tell me if the tespoints will differ on the HTC Touch Pro Raphael to those discovered on the Universal?
Thanks!

[sundar83]

tutorial link not working

[Eer]

tutorial link not working

True, can somebody post the information again?