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View Full Version : Any way to manually make a Jtag USB cable



pakkete
20th November, 2008, 08:41 PM
I need to connect my cable modem to my PC but cannot find any place that carries then Jtag cable that I need, if any one knows how to make one manually, would really help me out...

fac51
5th February, 2010, 09:07 PM
a usb jtag is a very complicated thing to make yourself in comparison to a rs232 jtag

worldunix
9th July, 2010, 10:58 PM
Google (http://www.google.com/#hl=en&q=Building+your+own+rs232+jtag+&aq=f&aqi=&aql=&oq=&gs_rfai=&fp=ce05a414b371d0b0)

worldunix
9th July, 2010, 11:00 PM
Sorry here it is :-)

http://www.knjn.com/docs/KNJN%20RS232%20FPGA%
20boards.pdf

worldunix
9th July, 2010, 11:00 PM
http://www.knjn.com/docs/KNJN%20RS232%20FPGA%20boards.pdf

DJLJ
10th July, 2010, 04:10 PM
Or you could have searched on this very site, Devilfish posted a very good guide on here already.

http://www.digital-kaos.co.uk/forums/f10/how-make-jtag-cable-2076/

drcell
28th July, 2010, 03:57 PM
Or you could have searched on this very site, Devilfish posted a very good guide on here already.

http://www.digital-kaos.co.uk/forums/f10/how-make-jtag-cable-2076/
Thanks... This is so good information...

chatfinch
29th July, 2010, 08:51 PM
I have no serial port on my laptop to connect cable modem.I have a usb serial converter cable,I have instaled driver ok,come to down load new firmware it is trying to send it to com port 3,laptop is saying connected to com port 16 can I change this & how.down load saying waiting for reply of cable box.

jumpinjo
29th July, 2010, 09:04 PM
firmware it is trying to send it to com port 3,laptop is saying connected to com port 16 can I change this & how.

you can change comport settings in device manager

Deadphyre
21st April, 2011, 09:39 PM
From what i've read you need to have a certain number of beneficial posts on here. Meaning posts that don't say, hi...yo..etc etc. I believe someone mentioned it above.

elementzero
25th May, 2011, 09:24 PM
Thanks so much for the JTAG instructs, needed it to debrick my router

Sideflyingcows
21st September, 2011, 04:04 AM
Thanks alot for those instructions, dont want to have to buy a 45$ one to program a XC2C64A CoolRunner-II CPLD to RGH my Trinity board

scarface1980
25th September, 2011, 01:04 PM
i have 1 from when i bricked my starview 4 if find it ill send ya it

harishharipad
3rd June, 2012, 12:46 PM
Thanks for the guide

asshak
12th June, 2012, 08:18 AM
this would not work on 5101 would it

asshak
12th June, 2012, 08:19 AM
im sorry i mean motorolla sb 5101