putsuart1.c

Mplab C30编译器

#include "uart.h"

/***************************************************************************
* Function Name     : putsUART1                                            *
* Description       : This function puts the data string to be transmitted *
*                     into the transmit buffer (till NULL character)       *
* Parameters        : unsigned int * address of the string buffer to be    *  
*                     transmitted                                          *
* Return Value      : None                                                 *
***************************************************************************/

void putsUART1(unsigned int *buffer)
{
    char * temp_ptr = (char *) buffer;

    /* transmit till NULL character is encountered */

    if(U1MODEbits.PDSEL == 3)        /* check if TX is 8bits or 9bits */
    {
        while(*buffer != '\0') 
        {
            while(U1STAbits.UTXBF); /* wait if the buffer is full */
            U1TXREG = *buffer++;    /* transfer data word to TX reg */
        }
    }
    else
    {
        while(*temp_ptr != '\0')
        {
            while(U1STAbits.UTXBF);  /* wait if the buffer is full */
            U1TXREG = *temp_ptr++;   /* transfer data byte to TX reg */
        }
    }
}