Uart simmulation on proteus using atmega 32

/*
* Uart_Driver.c
*
* Created: 7/29/2013 4:33:00 PM
* Author: Belak Magdy
*/


#include <avr/io.h>
void UARTinit();
void UARTsender(char data);
char UARTreceiver();


void UARTinit(){
UBRRH=0X03; // 1200 bps & 16MHZ clock frequency
UBRRL=0X41;
UCSRB|=(1<<RXEN)|(1<<TXEN);
UCSRC|=(1<<URSEL)|(3<<UCSZ0);
}

void UARTsender(char data){

while(!(UCSRA & (1<<UDRE))) {

}

UDR = data ;


}

char UARTreceiver(){

while (!(UCSRA & (1<<RXC))){

}

return UDR;


}

Click to expand...

that's very simple app:

#include <avr/io.h>
#include <stdio.h>

void main (){
UARTinit();


while(1){
UARTsender("b");
UARTreceiver();
}

}

Click to expand...

Venkadesh_M said:

did you select the baudrate settings in virtual terminal and frequency in Chip??

then it must be the problem of

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Code C - [expand]
1
while(!(UCSRA & (1<<UDRE))) {}

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try to take this commanded if still not works check the config, then there is no uart in the library device..

Click to expand...

shihab_leo said:

Hi belal elkady
I haven't checked your baud rate and other settings yet But your UARTsender function expects a char and you are passing it a string
try changing

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Code C - [expand]
1
UARTsender("b");

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to

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Code C - [expand]
1
UARTsender('b');

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Click to expand...