masterreadi2c.c

Microchip的官方PIC24H系列16位单片机的外设源程序库。

#include <i2c.h>
#include <p30fxxxx.h>

/******************************************************************************
*    Function Name:  MasterReadI2C										
*    Description:    This routine reads a single byte from the I2C Bus. 
*                    To enable master receive,RCEN bit is set.
*                    The RCEN bit is checked until it is cleared.When cleared,
*                    the receive register is full and it's contents are returned.
*    Parameters:     void									
*    Return Value:   unsigned char
********************************************************************************/

unsigned char MasterReadI2C(void)
{
    I2CCONbits.RCEN = 1;
    while(I2CCONbits.RCEN);
    I2CSTATbits.I2COV = 0;
    return(I2CRCV);
}