Add Jtag Port
From NAS-Central Buffalo - The Linkstation Wiki
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=== Buy one === | === Buy one === | ||
| - | + | '''Commercial''' | |
The [http://www.macraigor.com/wiggler.htm|Macraigor Wiggler] seems to be the cheapest at $150. | The [http://www.macraigor.com/wiggler.htm|Macraigor Wiggler] seems to be the cheapest at $150. | ||
| - | + | '''Hobby''' | |
Could the 20-pin [http://www.olimex.com/dev/arm-jtag.html|Olimex ARM-JTAG] be modified to work with Kuro-Box? $20. | Could the 20-pin [http://www.olimex.com/dev/arm-jtag.html|Olimex ARM-JTAG] be modified to work with Kuro-Box? $20. | ||
| - | + | ===Locate the pads=== | |
| - | The pads are labelled CN5: | + | The pads are labelled CN5: http://www.type-g.com/LinkStation/img/PCB_4.jpg |
| - | + | ===Connector Pin-outs=== | |
In order to use this port, you should add the 10K series VIO resistor R67 and a 4-way 1K resistor pack at RA11. It may be possible to use some functionality without these components. | In order to use this port, you should add the 10K series VIO resistor R67 and a 4-way 1K resistor pack at RA11. It may be possible to use some functionality without these components. | ||
If you know which set of pin-outs that LinkStation/Kuro-Box uses, please update this page with the details. | If you know which set of pin-outs that LinkStation/Kuro-Box uses, please update this page with the details. | ||
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Revision as of 23:31, 28 March 2006
This document is a work in progress. It explains how to fit the internal on-chip debug (OCD) port on a Linkstation, Kuro-Box or Kuro-Box/HG to a PC interface.
Cable required: 
Contents |
OCD connector
The internal OCD port uses an electrical standard known as JTAG/COP. The signals have to be buffered to protect the hardware from damage and we use a JTAG wiggler to do this.
Those with some electrical experience could build their own circuit, but most will opt for ordering one.
Schematics and Software to build your own
http://hri.sourceforge.net/tools/
Buy one
Commercial The Wiggler seems to be the cheapest at $150.
Hobby Could the 20-pin ARM-JTAG be modified to work with Kuro-Box? $20.
Locate the pads
The pads are labelled CN5: 
Connector Pin-outs
In order to use this port, you should add the 10K series VIO resistor R67 and a 4-way 1K resistor pack at RA11. It may be possible to use some functionality without these components.
If you know which set of pin-outs that LinkStation/Kuro-Box uses, please update this page with the details.
