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Re: accurate ms delay
- From: Jani Monoses <jani at iv dot ro>
- To: <ecos-discuss at sources dot redhat dot com>
- Date: Thu, 4 Apr 2002 13:12:52 +0300 (EEST)
- Subject: Re: [ECOS] accurate ms delay
On 4 Apr 2002, Jesper Skov wrote:
> No, they cannot be: with interrupts enabled there can be no guarantee
> that (a) the (timing of the) flash programming protocol is followed by
> the driver and (b) there's no ISR that tries to accesses the flash
> during the erase/programming of the flash.
>
> That's why the eCos flash drivers run from RAM and disable both cache
> and interrupts.
so for flash drivers for cycles are the way to wait...
thanks
Jani
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