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Author Topic: Type of 10-pin JTAG header of Arduino Due  (Read 1949 times)
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I ordered a Segger SAM-ICE JTAG for my SAM3X-EK. I was thinking to use it also to do some debugging in my Arduino Due but the SAM-ICE has a standard 20-pin JTAG header and due has a 10-pin JTAG connector. Somebody knows the type of this header of Due? Thanks.
« Last Edit: November 23, 2012, 10:37:36 pm by Palliser » Logged

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The Due probably uses SWD rather than JTAG, as do most Cortex systems:

If that is the case, you will need an SWD adapter, and will need to select SWD when debugging your application.
« Last Edit: November 23, 2012, 11:18:53 pm by Leon Heller » Logged

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I found a low cost source of 20pin to 10pin 0.05" JTAG connectors.
Olimex ARM-JTAG-20-10 = US$7.00  -
from and it has worked for me with the Atmel SAM-ICE
The JTAG 2x5 0.05" connector does hit another connector SIL 0.1" called Debug - but it can be pressed in and does work for me.
The JTAG isn't keyed and I have the cable direction as coming away from the board.

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