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AW: jtag command converter

Started by Bende Georg May 17, 2004
Unfortunately some newer main boards have 3,3V signals on the parallel port. But
using one LVC octal buffer solves the problem, and it can be powered through the
parallel port as well.

Georg Bende
Softwareentwickler
Abteilung Elektronik
Dr. Fritz Faulhaber GmbH & Co KG
Daimlerstr. 23
71101 Schaich
Tel: +49 7031 638294 > -----Ursprgliche Nachricht-----
> Von: joncas04 [mailto:]
> Gesendet: Freitag, 14. Mai 2004 18:45
> An:
> Betreff: [motoroladsp] jtag command converter > Hello
>
> Would anyone be able to recommend an economical JTAG command
> converter, either to
> USB or parellel (printer port) for use with Metrowerks
> Codewarrior on a 568000/E device?
> Or what is the simplest design to make ones own?
> The evaluation boards from Motorola incorporate various
> designs on-board, allowing both
> 5 V and 3,3 V levels on the printer port side and requiring
> two octal buffers to achieve the
> translation -- is that really needed?
> Don't all current printer ports work on the same 5 V level?
>
> Many thanks!
> Robert Imhoff >
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