New Guy...Please don't Ra*pe Me!

 

New member
Username: Tonyparker

Post Number: 1
Registered: Apr-06
Anyone have any expierence JTagging a system?
 

Bronze Member
Username: Jmontana1

Post Number: 11
Registered: Apr-06
yes here!Upload
 

New member
Username: Tonyparker

Post Number: 2
Registered: Apr-06
Thanks montana! this place has good quick help with no insults or slams

good deal!!!!
 

Bronze Member
Username: Jmontana1

Post Number: 13
Registered: Apr-06
oh wait i get more info:2700 JTAG Guide
If you have a 10-pin header on the circuit board, here is how to make the jtag cable:

tag Header Identifier on the PCB: HS1

Pin configuration: Square pad is 1. Numbering is first row (or column), even second row (or column) like this:

2_4_6_8_10
1_3_5_7_9

This is actually how it looks from the top when you open the case with the front towards you. The bottom edge of the header in on the bottom of the main PCB, which is in the back of the unit (the power supply PCB is in the front). The header is just below and slightly to the left of the DCU or main CPU at the front edge of the main PCB .

Used connections are laid out like this:

._4_6_8_.
1_3_._._9

Wiring is as follows, resistors 100 Ohm 1/8W (1/4 W OK too),
except for ground (GND):

Pin__Signal__Resistor__Parallel Port Pinout (DB25):

1____TDI_____Yes_______4
3____TCK_____Yes_______3
4____TMS_____Yes_______2
6____TDO_____Yes_______13
8____TRST____Yes_______5
9____GND_____No________18 to 25 (I used 25)

Wall.exe does not seem to work. So I only use Unlock and Jkey. (May be you can skip Unlock too.) You need to change the port to use Parallel port.

Be careful not to touch anything on the Power Supply board when power is on!!
 

Bronze Member
Username: Jmontana1

Post Number: 14
Registered: Apr-06
i hope it worked!
 

New member
Username: Tonyparker

Post Number: 4
Registered: Apr-06
I havn't messed with it; my yard has been calling! What a jungle!
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