> -----Original Message----- > From: Per-Tore Aasestrand [mailto:[EMAIL PROTECTED] > Sent: Friday, July 06, 2007 5:40 PM > To: Eric Weddington; [email protected] > Subject: RE: [avr-gcc-list] Strange delay behavior > > Hello, > > At 23:20 06.07.2007, Eric Weddington wrote: > > > > > > -----Original Message----- > > From: > > [EMAIL PROTECTED] > > [ > mailto:[EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]> . > > org] On Behalf Of Per-Tore Aasestrand > > Sent: Saturday, June 09, 2007 12:06 PM > > To: [email protected] > > Subject: [avr-gcc-list] Strange delay behavior > > > > Hello list, > > > > I've suddenly run into something odd. I am using AVR Studio > > Version 4.12 Service Pack 4 with WinAVR 20060421. Have been > > using this setup for a while without any problems. > > > > Now, running the following test program on a ATmega128 @ 8 > > MHz, produces pulses on PC3. However, with 'off' period of > > 1,45 ms and 'on' period of 2,45 ms and. I had of course > > expected 1ms and 2 ms, respectively. > > > > I ran the same program using CodeVision, and then the > periods were OK. > > > > Guess I've overlooked something. > > Any idea, someone? > > What's your optimization setting (-O) ? > > > Yes, it was -O!! ;-) > > Are there some guidelines for proper use of optimization settings? > > This message was sent to the list about one month ago. I was > quickly tipped off to check the optimization setting. For > some odd reason, it popped up again today. Wonder what happened.
I don't know. I just figured out that I was replying to old messages. Silly me. Anyway, use some form of optimization (such as -O1, -O2, -O3, -Os). :-) Eric _______________________________________________ AVR-GCC-list mailing list [email protected] http://lists.nongnu.org/mailman/listinfo/avr-gcc-list
