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Forum Receiving a string through USART
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  • usart
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Related

Receiving a string through USART

dr.akshay_1980@yahoo.com
dr.akshay_1980@yahoo.com over 10 years ago

I basically want to receive a arbitrary string of approximately 80 characters through usart of microcontroller, but I could not succeed accordingly.Pseudo code for  my project is as below

 

#include<avr/io.h>

#include<util/delay.h>

 

unsigned char USART_receive();//function to receive single character at a time from USART

char *rcv_buffer;            //string to be received into pointer

char count=0;

void main()

{

count=0;

   while(1)

         {

                   do

                     {

                      *rcv_buffer=USART_receive();

                       rcv_buffer++;

                      count++;

                   } while(count<80);

               count=0;

         printf(rcv_buffer);

        OR

       any output console such as lcd

       lcd_putstring(rcv_buffer);

     _delay_ms(5000);

erase_bufffer(rcv_buffer);               // to erase the string or refresh it for next time

}

}

 

The string data gets corrupted which is shown on the console.

What is main issue or problem persisting???

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  • michaelkellett
    0 michaelkellett over 10 years ago

    Without knowing more about USART_receive it's not possible to say.

     

    Instead of posting pseudo code why not post the real code and also tell us which micro, which toolset and anything else that might help define the context.

     

    It would also help if you showed us the "corrupted" data.

     

    MK

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