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Re: ICE only for download
- From: Kjell Svensson <kjell at techtribe dot se>
- To: Roland Caßebohm <roland dot cassebohm at visionsystems dot de>
- Cc: ecos-discuss at sources dot redhat dot com
- Date: Mon, 24 Jun 2002 14:05:59 +0200
- Subject: Re: [ECOS] ICE only for download
- References: <200206241127.g5OBRcO26868@hhlx01.visionsystems.de>
Hi Roland,
There is of course the "serial monitor" options, either the ARM Angel or
the GDB-stub (e.g RedBoot), but I suppose You are looking for something
loading an "empty" ARM chip with(?)
There are a number of quite cheap JTAG "wigglers" commercially
available, which typically utilise the parallell-port of the PC to drive
the JTAG signals. MacGraigor sells a popular device named "Wiggler", but
there are others.
Since these wigglers essentially contain only a few drivers/buffers in
order to convert/isolate the electrical levels of the PC from the levels
of the target, the prices asked for a commercial wiggler might anyway
seem absurd :-( I've seen a few "build-it-yourself" instruction on
various places on the internet. If You're interested in these and cannot
find them Yourself, send me an email and I'll see if I can find it again.
By the way; parallell port wigglers are typically poorly supported by
Linux hosts which generally defaults to ethernet/TCP/IP connections. I'm
unsure if its possible to get a wiggler working together with gdb in
Linux, but I know there is some Linux app around capable of downloading
images into an ARM.
Cheers, /Kjell
--
Kjell Svensson Embedded Technology Manager
Techtribe Solutions AB Tel: +46 (0)31 706 06 00
Flöjelbergsgatan 12 GSM: +46 (0)70 270 76 66
SE-431 37 MÖLNDAL Mail: kjell@techtribe.se
Sweden
Roland Caßebohm wrote:
Hi,
does anybody know if there is any inexpensive option to use the JTAG
interface of an ARM7TDMI only to download images?
Thanks,
Roland
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