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ISR interrupts latency time
- To: <ecos-discuss at sources dot redhat dot com>
- Subject: [ECOS] ISR interrupts latency time
- From: Nicpoń Marcin <nicpon at rts dot com dot pl>
- Date: Fri, 8 Jun 2001 10:09:43 +0200
I`ve a problem with interrupts.I`m working on Motorola PPC850 and I measured
(interrupt) ISR handling latency time and it was very long. If I write
handling funcion in assembler file (vectors.S) I`ve got a tomes 10X shorter
than default handlig so the problem is between starting assembler handling
function and C handling function, which I defined in
cyg_interrupt_create(), but I can`t find in which part of code take so long
time. Which function (macro) I should correct to faster intrrupt handling ?
Best Regards.
Marcin Nicpon
mailto: nicpon@rts.com.pl
mobile phone (+48) 602533132