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dev:nab:v2:jtag_access [2015/11/12 12:35] – [Nabaztag:tag] redoxdev:nab:v2:jtag_access [2015/11/12 13:38] (current) – removed redox
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-# JTAG access 
  
-## Overview 
- 
-As detailed on the Schematic (released in the FCC documents), the Nabaztag:tag board breaks out the JTAG port. Let's see how to use it to access the CPU to be able to flash and debug some code ! 
- 
-## Hardware 
- 
-### Nabaztag:tag 
- 
-Well, of course you need a Nabaztag:tag ( a version 2 ). You also must be ready to open it. 
- 
-Grab a small flat screwdriver and remove the four screws on the base. You can also use a triangle screwdriver if you happen to have one, I don't. 
- 
-And this is about it. the JTAG header is on the top left corner of the board. 
- 
-Pinout is the following (top to bottom): 
- 
- 
-^ Pin ^ Function ^ 
-|  1 | Vcc      | 
-|  2 | GND      | 
-|  3 | nTRST    | 
-|  4 | TDI      | 
-|  5 | TMS      | 
-|  6 | TCK      | 
-|  7 | TDO      | 
-|  8 | RESETN   | 
- 
- 
- 
- 
-### JTAG probe: BusBlaster 
- 
-## Software: OpenOCD 
- 
-### Pacth and compile 
- 
-### Usage 
- 
-## Pictures 
- 
-{{.:jtag:nabjtag.jpg?250| BusBlaster connected to the Nabaztag, side view}} {{.:jtag:nabjtag_bottom.jpg?250| BusBlaster connected to the Nabaztag, bottom view}} 
- 
-## Links 
/home/share/www/redox.ws/wiki/data/attic/dev/nab/v2/jtag_access.1447331719.txt.gz · Last modified: 2023/11/24 21:55 (external edit)