[En-Nut-Discussion] Connecting an OLIMEX

Douglas Pearless Douglas.Pearless at pearless.co.nz
Fri Feb 16 02:06:58 CET 2007



   Hi team,

   I have purchased an OLIMEX ARM-USB-OCD and an Ethernut 3.0e , but I  
am unsure how to wire the connect them together.

   The OLIMEX website  
(http://www.olimex.com/dev/images/arm-jtag-layout.gif) shows a pinout  
that is different from the Ethernut 3.0 hardware manual.

   I assume that this will work??

   OLIMEX ARM-USB-OCD PIN (top PCB view)

   USE

   ETHERNUT J7 JTAG PIN

   USE

   1

   VREF

   7

   VCC3

   2

   VTARGET

   4

   VCC3

   3

   NTRST

    

    

   4

   GND

   2

   GND

   5

   TDI

   9

   TDI

   6

   GND

    

    

   7

   TMS

   5

   TMS

   8

   GND

    

    

   9

   TCK

   1

   TCK

   10

   GND

    

    

   11

   RTCK

    

    

   12

   GND

    

    

   13

   TDO

   3

   TDO

   14

   GND

    

    

   15

   RST

    

    

   16

   GND

    

    

   17

   DBGRQ

    

    

   18

   GND

    

    

   19

   DBGACK

    

    

   20

   GND

    

    

    

   But where do I connect the NMR (pin 6 on the J7 ethernut JTAG  
connector) to??

   Cheers Douglas






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