AVR-Chat

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On Thu, 31 Mar 2005, rajesh parwani wrote:

> im also in desperate need of a code with which i can interface  
> atmega32 with lcd hd447780 in 4 bit mode without monitoring busy flag

The data sheet for the HD44780 seems to be hard to find these days.

I have a copy of it on my website.

http://www.qsl.net/w9sz/files/PDFs

Look for HD44780.pdf

That file contains all the info you would need to program the HD44780.

Zack

----- Original Message -----

From: rajesh parwani

To: AVR-Chat@yahoogroups.com

Sent: Thursday, March 31, 2005 8:21 PM

Subject: [AVR-Chat] desperate help!!!!!!

hi,

im using atmega 32, pls tell me what is the frequency at which it would work if i dont change any fuse bits and just connect external crystal of 8 mhz.

im also in desperate need of a code with which i can interface atmega32 with lcd hd447780 in 4 bit mode

without monitoring busy flag

my connection are

1.rs to portb.2

2.enable to portb.3

3.d4 to portb.4

4.d5 to portb.5

5.d6 to portb.6

6.d7 to portb.7

it would be aprivelege if anyone can send me the asm code else even hex code would do to display something which i can continuosly see

At 02:21 PM 3/31/2005, rajesh parwani wrote:
>hi,
>im using atmega 32, pls tell me what is the frequency at which it 
>would work if i dont change any fuse bits and just connect external 
>crystal of 8 mhz.


It ships in the state where it's running on the 1 MHz oscillator.