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eCos interrupt overhead (eb40a)
- From: "Santiago Lafon" <lafon at fing dot edu dot uy>
- To: <ecos-discuss at sources dot redhat dot com>
- Date: Tue, 29 Mar 2005 16:16:09 -0300
- Subject: [ECOS] eCos interrupt overhead (eb40a)
I'm working with a eb40a and i want to have a fast timer (10uS).
Working in RAM mode, i can't get periodic interrupts faster than 15uS aprox.
(using Timer 1 or Timer 2 of the atmel AT91 processor)
Working in ROM mode, can't get faster than 150uS aprox.
EB40a ecaluation board has a 66MHz oscillator. I thing that it should be
enough to have faster interrupts.
¿eCos have such an interrupt overhead? ¿am i doing something wrong?
Thanks
Santiago Lafon
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