JTAG R-Jtag Falcon FAN

[FJB66]

Is that what you call short wires, lol.

 

[mat989]

Which wires you are referring to?

The postout wires (red ones going through the whole) are shorter than the ribbon cable... The wires to the R-JTAG barely enough to place the R-JTAG in case of successful boot in its proper place just over the audio/video port... The NAND R/W wires are the standard xecuter ones...

 

[mat989]

I used point 2 in J8C1. And shorted R8C2 w/o removing the resistor (Is this OK?!). Here is a magnified picture of the area


Voltage 1.2V, all dips were tested...no xell, no RROD, sometimes RED/Green ROL, all 4, 2, or 3...but the system does not power off

Post 84 - Panic - INSTRUCTION_STORAGE 
Post FD 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post FE 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post FC 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post FC 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post FD 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post 8C - Panic - SYSTEM_CALL 
Post FC 
Post 80 
Post FD 
Post 80 
Post FD 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post FD 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post FD 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post FD 
Post 15 - FETCH_OFFSET 
Post 18 - FETCH_CONTENTS 
Post 1B - RC4_DECRYPT 
Post 1C - SHA_COMPUTE 
Post 1D - SIG_VERIFY 
Post 1E - BRANCH 
Post 20 - CB entry point reached 
Post 21 - INIT_SECOTP 
Post A0 - Panic - VERIFY_SECOTP_6 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post FD 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post FC 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post FC 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post FC 
Post FD 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post FE 
Post FC 
Post FD 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post FD 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post FC 
Post FD 
Post 80 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post FD 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post 12 - FSB_CONFIG_RX_STATE 
Post 15 - FETCH_OFFSET 
Post 1B - RC4_DECRYPT 
Post 1C - SHA_COMPUTE 
Post 1D - SIG_VERIFY 
Post 1E - BRANCH 
Post 20 - CB entry point reached 
Post 21 - INIT_SECOTP 
Post A0 - Panic - VERIFY_SECOTP_6 
Post FC 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post 80 
Post FC 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post FC 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post FC 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post FC 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post FC 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post FD 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post FD 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post FD 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post FD 
Post 84 - Panic - INSTRUCTION_STORAGE 
Post 15 - FETCH_OFFSET 
Post 16 - FETCH_HEADER 
Post 1B - RC4_DECRYPT 
Post 1C - SHA_COMPUTE 
Post 1D - SIG_VERIFY 
Post 1E - BRANCH 
Post 20 - CB entry point reached 
Post 21 - INIT_SECOTP 
Post A0 - Panic - VERIFY_SECOTP_6 
Most Fails(cumulative): 0xA0
Shutdown

 

[FJB66]

It would be better to remove the resistor, or just bridge with one strand of tinned wire. You don't need that resistor for stock so don't worry about removing it. The way you have done it has the effect of lengthening the wire.

 

[mat989]

What would be better to do now?! I think I tested different methods, this system used to boot, but not optimized. Now, it just does not boot xell at all...I will use the normal cpu_rst instead of this method just in case it might help in the future...

 

[FJB66]

On both my R-Jtags the alt cpu_rst worked best, my falcon would just red ring when on the underside. No offence but with your skill level I would get someone to look at it for you.

 

[mat989]

I will ignore your negative remark about my skill level...

 

[mat989]

I removed the JTAG QSB from underneath the board...cleaned the area. And then I used the old JTAG method with 2 diodes and a little bridge...here are the pictures


I will test using this method, since someone on Youtube mentioned that this method was the only way to boot his stubborn falcon...I will test this one with different combinations and report back...

*edit*
It should be noted that I did test the diodes using a multimeter and they were within the expected range...

*edit*
@ default voltage, No RROD...no need to 1.2V

 

[mat989]

I am not sure what to do more...I might shift to RGH2 since R-JTAG is not working on this falcon...I do have Rev C CoolRunner that I might use if applicable...

 

[DreamZ]

Why try rgh2?
Get someone to fix this up for you and get it working.

 

[mat989]

fix it up, in what way?!

 

[FJB66]

The proper way, what you have there is a disaster.

 

[Martin C]

I will ignore your negative remark about my skill level...

If you don't want honesty, don't ask for advice.

 

[Taijigamer2]

R-jtag should work fine for falcons. It's zephyr that have been known to cause issues. Being as constructive as possible it would suggest starting from scratch. remove all wiring and clean up the points. Leave the post wiring and run a post log on stock boot to make sure the console boots and post log is free from artefact readings. The jtag qsb is your best bet for stable reliable boots as it gives u Aud clamp and adjustable resistance though 470ohm should be fine. Then go back to wiring the Rjtag chip and cpu_rst wire. Good luck

 

[Martin C]

It appears that he's decided that RGH2 is better than R-JTAG:
http://team-xecuter.com/forums/show...-Install-Guide?p=957300&viewfull=1#post957300

I'll therefore close this thread.