JTAG Pod?
Michael K. Elwood
mkelwood@qsicorp.com
Thu Sep 25 22:24:00 GMT 2003
At 09:21 PM 9/25/2003 +0200, Toralf Lund wrote:
>>Our target is an ARM7. I've got an EPI Jeeni, and have used a borrowed
>>BDI2000 on a very limited basis. My impressions: The BDI is more of a
>>pain to set up, but seems more flexible and configurable after you climb
>>the curve. Both work great with gdb, and you can't complain about the
>>ethernet download speeds. At ~$1500 for the Jeeni vs. ~$2400 for the
>>BDI2000, the Jeeni seems like the better deal if you are targeting ARM.
>I was actually under the impression that the Jeeni would be just as
>expensive as the BDI2000, but perhaps I was thinking about the Majic?
Yup, the Majic is comparable in price to the BDI. And the Majic is where
EPI's development (and sales) efforts are focused these days. I think the
main feature that Majic boasts over Jeeni is support of multiple cpu cores
and better support for the newer cores.
>What exactly is involved in setting up the [Jeeni] unit, and how do you
>operate it? (Again, I do like the idea of not having to run any software
>besides GDB in order to talk to the hardware.)
Well, there is a configuration utility (runs in DOS/Windows only; at least
the BDI came with sources to build their config utility on Linux) that
configures the Jeeni with IP address, ARM cpu target and a few other
parameters. You configure through the serial port, then use the Ethernet
for the debug.
The think I liked about Jeeni is that you only have to do the configuration
once. The BDI wants its to get its configuration (via TFT) after every
single boot. That's either a feature or a bug, depending on how you look at it.
To use, just fire up your trusty cross build of gdb (I use arm-elf-gdb) and
connect to the Jeeni with the command:
target rdi e=<jeeni hostname or ip address>
And away you go.
With best regards,
MKE
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