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Re: [avr-gcc-list] basic UART problem / example

From: Hugo González Monteverde
Subject: Re: [avr-gcc-list] basic UART problem / example
Date: Fri, 17 Jun 2005 00:10:15 -0500
User-agent: Mozilla Thunderbird 1.0 (Windows/20041206)

Have you tried polling mode first? There is a common gotcha where you have to disable overall interrupts so that you get the data from the UART input register and avoid the interrupt to keep trigering.

Maybe if you can post a copy of your ISR...


Przemek Urbanski wrote:

I am new to avr programming. I can not get my at90s8515 talk to rs232. I
wrote basic interrupt driven program for at90s8515 talking via UART to
rs232 on my PC. Compiled using CodeVisionAVR. It worked fine.

Now I am using:

avr-gcc (GCC) 3.4.4
binutils 2.15
avr-libc 1.2.3

on linux (Fedora Core 3)

Could you please send me, or point me any UART examples, which works compiled 
with avr-gcc?

Thnx AVR freaks :>

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