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cahya-wirawan / usbprog-jtag

Automatically exported from code.google.com/p/usbprog-jtag
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Change pin configuration of JTAG-Adapter #2

Open GoogleCodeExporter opened 8 years ago

GoogleCodeExporter commented 8 years ago 
It would be great to see a second firmware with the same pin layout as the
original USBprog.

I'm using USBprog in combination with the 5V->3.3V level-shifter
(http://svn.berlios.de/svnroot/repos/usbprog/trunk/board/levelshifter/schematic.
pdf).
This level-shifter provides a 20 pin ARM compliant JTAG connector.
Obviously, the pinout of this connector depends on the pinout of USBprog
itself.
If a different pinout is used, people using the level-shifter will have to
build a special adapter to program & debug their boards.

Original issue reported on code.google.com by goo...@mailbarrier.de on 2 May 2010 at 3:55

GoogleCodeExporter commented 8 years ago 
Actually I use difference pin layout for a better performance in the new 
firmware.
I will try to make a performance comparison between new pin layout and the old 
one.
If the performances difference is not so big, I might change the current one 
to the old pin layout.

Original comment by cahya.wi...@gmail.com on 10 May 2010 at 7:30

GoogleCodeExporter commented 8 years ago 
Same problem here and i'm not too interested in performance, so i fixed this. 
Maybe the attached patch helps other users - if you want to include it in the 
source tree, feel free to do so (maybe a #define could switch between both 
variants).

Thanks for this great project, i make heavy use of it!

Original comment by mku...@gmail.com on 23 Oct 2011 at 12:33

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