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Minimum JTAG connection?

Minimum JTAG connection?

2004-01-23 by Brian C. Lane

What is the minimum number of pins needed for a JTAG connection? I see 
there are 2 JTAG ports on the LPC2106? Does it matter which ones are 
used, or is it just there to make it easier to dedicate pins to it?

I think that it should be:

TRST - p0.17
TMS  - p0.18
TCK  - p0.19
TDI  - p0.20
TDO  - p0.21
RTCK - p26

Also, is there a standard pinout that is compatible with most 
development tools?

Thanks,

Brian

-- 
-----------------------------------------------------
Brian C. Lane (W7BCL)                      Programmer
www.shinemicro.com   RF, DSP & Microcontroller Design

Re: [lpc2100] Minimum JTAG connection?

2004-01-23 by Leon Heller

----- Original Message ----- 
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From: "Brian C. Lane" <brian@...>
To: <lpc2100@yahoogroups.com>
Sent: Friday, January 23, 2004 9:56 PM
Subject: [lpc2100] Minimum JTAG connection?


> What is the minimum number of pins needed for a JTAG connection? I see
> there are 2 JTAG ports on the LPC2106? Does it matter which ones are
> used, or is it just there to make it easier to dedicate pins to it?
>
> I think that it should be:
>
> TRST - p0.17
> TMS  - p0.18
> TCK  - p0.19
> TDI  - p0.20
> TDO  - p0.21
> RTCK - p26
>
> Also, is there a standard pinout that is compatible with most
> development tools?

I've got the details on my web page. Connector is a 2x10 header. That
configuration works with the Wiggler.

Leon
--
Leon Heller, G1HSM
Email: aqzf13@...
My low-cost Philips LPC210x ARM development system:
http://www.geocities.com/leon_heller/lpc2104.html

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