Example of AVR program for RS232 communication

[david90]

Does anybody have an AVR example program that demonsrate rs232 communication?

 

[silvio]

rs232 avr

Read my post here :

 

[LBdgWgt]

avr rs232 tutorial

I think in every datasheet of AVR microcontrollers, there are example for UART communication (in C), I usually copy them for my program.

regards,

 

[david90]

avr rs232 example

thanks a bunch. Do you happen to know any serial com gcc code? I've tried to search for it but nothing.

 

[silvio]

avr rs232

This is a port of the Atmel VT100 terminal driver to avr-gcc/avr-libc to play with it in Windows HyperTerminal
**broken link removed**

* This is an avr-gcc port of the orignal version 2.1
* Copyright (C) 2003 Atmel Corporation
* for the IAR EWAAVR 2.28a Compiler
*
* ported by Martin Thomas 
*  [I]**broken link removed**[/I]

 

[necromancer]

avr rs232 gcc

search for "avrlib" on google there many library for avr

 

[IORY]

rs232 to avr

Does anybody have an AVR example program that demonsrate rs232 communication?

is that you need?or you need the programme?

 

[IORY]

avr rs232 communication

void Init_USART( uint baud )
{
UBRRH = (uchar)(baud>>8);//set baudrate
UBRRL = (uchar)baud;

UCSRB = (1<<RXEN)|(1<<TXEN)|(1<<RXCIE);//enable the receiver and sander,enable receive interrupt
UCSRC = (1<<URSEL)|(1<<USBS)|(3<<UCSZ0);//set the format of frame : 8 data bits, 2 stop bits
}

sand data:
void Tx_Data( uchar data )
{
while ( !( UCSRA & (1<<UDRE)) );//put data into buffer,sand data
UDR = data;
}

receive data use interrupt:
#pragma interrupt_handler USART_Rx:12

void USART_Rx( void )
{
uchar temp;
temp=UDR;//read data from UDR register
..........
}