[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [avr-gcc-list] How to (efficeiently !!!) test abitwithinamulti-byte

From: Vincent Trouilliez
Subject: Re: [avr-gcc-list] How to (efficeiently !!!) test abitwithinamulti-byte intege
Date: Sat, 05 Nov 2005 01:39:45 +0100

> FWIW, I always had good luck with the delay functions in delay.h for short 
> hardcoded (usec) delays.

Lucky you ! Other than wanting to avoid all this in-line stuff, the
reason I replaced _delay_us(40) in my lcd routine, by an empty for loop,
is that I accidentally realised that _delay_us(40) produced a 1,500us
delay somehow !!! Couldn't figure out why, I set the F_CPU #define
properly, and _delay_ms() works perfectly, but _delay_us clearly
doesn't. Might be a bug with the particular delay of 40us, don't know,
as don't use us delays anywhere else in my program.


reply via email to

[Prev in Thread] Current Thread [Next in Thread]