- To: Jesper Skov <jskov at cambridge dot redhat dot com>
- Subject: Re:Re: [ECOS] how to do nanosecond delay in ecos?
- From: "dai hongbo" <dai_ecos at 263 dot net>
- Date: Thu, 5 Jul 2001 08:37:18 +0800 (CST)
maybe i'm wrong,how about usecond?that is needed for a device driver?
>>>>>> "dai" == dai hongbo <dai_ecos@263.net> writes:
>
>dai> is there a way to do precise delay of nanosecond?
>
>No. The finest resolution is micro seconds, which can achieved by
>useing the CYGACC_CALL_IF_DELAY_US macro.
>
>FWIW I don't believe there's any _embedded_ CPU that's actually
>capable of executing a whole instruction in a nanosecond. Yet.
>
>Jesper
_____________________________________________
[足不出户 轻松上网] 上网专用号:95963,用户名/密码:263
化妆品夏日特惠,降价狂潮! http://shopping.263.net/category04.htm