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input through serial port

Brijesh Turimella

I need some help regarding how to give input through serial port.
I can see the output of serial port in UART #1.

char rxcharacter(void)
{ char character;

SBUF = _getkey ();
//SBUF = 'G';

while(RI != 1);

character = SBUF;
RI = 0;

return character;
}

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  • 0

    This is my source.
    I am very new to this tool.
    Please let me know how give input from a serial port.

    #include <stdio.h>
    #include <reg51.h>

    void txcharacter(char character);
    char rxcharacter(void);

    main(){

    unsigned char character;

    SCON = 0x10; /* recieve enabled mode 0 ---> 8-bit shift register with baud rate = 1MHz */

    TI = 1; // you can now transmit on the line

    while(1){

    character = rxcharacter();

    txcharacter(character);
    } }

    char rxcharacter(void)
    { char character;

    SBUF = _getkey ();
    //SBUF = 'G';

    while(RI != 1);

    character = SBUF;
    RI = 0;

    return character;
    }

    void txcharacter( char character)
    {

    while(TI != 1);
    TI = 0;
    SBUF = character;
    return;
    }

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  • 0

    This is my source.
    I am very new to this tool.
    Please let me know how give input from a serial port.

    #include <stdio.h>
    #include <reg51.h>

    void txcharacter(char character);
    char rxcharacter(void);

    main(){

    unsigned char character;

    SCON = 0x10; /* recieve enabled mode 0 ---> 8-bit shift register with baud rate = 1MHz */

    TI = 1; // you can now transmit on the line

    while(1){

    character = rxcharacter();

    txcharacter(character);
    } }

    char rxcharacter(void)
    { char character;

    SBUF = _getkey ();
    //SBUF = 'G';

    while(RI != 1);

    character = SBUF;
    RI = 0;

    return character;
    }

    void txcharacter( char character)
    {

    while(TI != 1);
    TI = 0;
    SBUF = character;
    return;
    }

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