masterreadi2c2.c

来自「基於 c51/8051 的 nand Flash Memory HY27US08」· C语言 代码 · 共 30 行

#if defined(__PIC24F__)
#include <p24Fxxxx.h>
#endif
#include <i2c.h>

/******************************************************************************
*    Function Name:  MasterReadI2C2
*    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
********************************************************************************/

#ifdef _I2C_V2_2

unsigned char MasterReadI2C2(void)
{
    I2C2CONbits.RCEN = 1;
    while(I2C2CONbits.RCEN);
    I2C2STATbits.I2COV = 0;
    return(I2C2RCV);
}


#else
#warning "Does not build on this target"
#endif