Re: [ECOS] ICE only for download

[Kjell Svensson <kjell at techtribe dot se>]

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
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Kjell Svensson                 Embedded Technology Manager
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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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