On Monday, April 10, 2006, Wolfgang Denk wrote:
Dear Andrey,
in message 1618325846.20060410201725@varma-el.com you wrote:
This does not mean anything. I haven't seen a single case where the network speed was the limiting factor. Shuffeling the data through the JTAG is usually much slower.
Not always. As ex.: allowable MPC5200 JTAG's clock is ... 25 MHz, clock of 10 Mbit eth is ... + tcp stack overhead. And now we run memory dump command and measure.
But the 25 MHz also includes a LOT of JTAG communication overhead. I think you won't get even close to a raw 10 Mbps data rate, but I have to admit that I never actually measured it yet. Did you really measure this? For example, what difference do you get when you connect your Lauterbach to a 10 Mbps port vs. a 100 Mbps port? [This is a serious question; I have never been able to run such a test myself yet.]
Unfortunately, but I have not access to a Lauterbach anymore (as I say, I work with it 3 years ago), so I couldn't run this test too :(.
snip..