hi,
yes,you are right.the usleep didn't give out accurate delay.so I make a
delay funtion to fix it.
thank you for you help.:)
regards
tony
That depends on how accurate you want. Sleep() functions can't be too accurate
for Linux schedule characteristic. To get best accuracy, you can use hardware
timer. udelay() is a choice which reduces the overall system performance.
Best Regards,
Leo
> -----Original Message-----
> From: linuxppc-embedded-bounces+leoli=freescale.com at ozlabs.org
> [mailto:linuxppc-embedded-bounces+leoli=freescale.com at ozlabs.org] On Behalf
> Of tony
> Sent: Wednesday, May 24, 2006 5:24 PM
> To: linuxppc-embedded at ozlabs.org
> Subject: delay programming
>
>
> hi all
> I want to delay 1ms in the program,
> does usleep(1000) works accurate?
> any good idea?
>
> regards
> tony
>
>
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> Linuxppc-embedded at ozlabs.org
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