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Re: [avr-gcc-list] Problem to control S1D13305 (SED1335-Epson Controller


From: Paulo Marques
Subject: Re: [avr-gcc-list] Problem to control S1D13305 (SED1335-Epson Controller) with using ATmega32
Date: Fri, 04 Jul 2008 12:39:26 +0100
User-agent: Thunderbird 1.5.0.14 (X11/20071210)

Sach wrote:
hi,

I am trying to control S1D13305 (SED1335-Epson Controller) based Graphic LCD
with using AVR ATmega32 microcontroller.
[...]

void Delay(unsigned int counter)
{
        while(counter)
        {
                counter = counter - 1;
        }
}

I didn't check the whole code, but at least this part is bad as the compiler is free to optimize this function away completely.

Place a:

#define F_CPU  8000000UL

on the top of your code and use the delay macros in "util/delay.h".

I hope this helps,

--
Paulo Marques
Software Development Department - Grupo PIE, S.A.
Phone: +351 252 290600, Fax: +351 252 290601
Web: www.grupopie.com




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