SparkFun Forums

[edi]

Hi,
i have a question about the signal path of the ARM-JTAG hardware. The device is compatible to wiggler. But i can't find a wiggler schematic which contains the NTRST signal.

At the moment i can reset my board, but i can't read back a valid value.

Where can i get the signal path (or better the whole schematic) of the ARM-JTAG made by olimex.

Best regards,
Edi

[Guest]

Until Olimex might publish their schematic you may find this one usefull:
http://www.siwawi.arubi.uni-kl.de/avr_p ... ggler1.pdf
Forgot where exactly I've found it (IRC somewhere on a .ru-Server). It seems that at least the used parts and some connections are like on the Olimex-JTAG device I have here (without the recently added "Maccraigor compatiblity wire").
HTH,
Martin Thomas

[edi]

Thanks a lot,
now i can program my AT91EB55 development board (Atmel).

Best regards,
Edi