HID Hi-O iCLASS Installation Guide - Manual (Page 42)

iCLASS OEM75 Integration Guide, 3141-907, Rev. B.0
Page 42 of 49 January 2014
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***********************************************************************/
static UBYTE writeByte (UBYTE data)
{
SSP1BUF = data;
CLRWDT();
while (RW1 || BF1) ;
if (ACKSTAT1)
{
return I2C_NAK;
}
return I2C_ACK;
} /* writeByte */
/***********************************************************************
** NAME:
** readByte
**
** INPUTS:
** None
**
** OUTPUTS:
** None
**
** RETURN:
** None
**
** DESCRIPTION:
** Reads a byte from the I²C.
**
** NOTES:
**
***********************************************************************/
static UBYTE readByte (void)
{
UBYTE I2CByte;
RCEN1 = 1;
CLRWDT();
while (RCEN1) ;
I²CByte = SSP1BUF;
return I2CByte;
} /* readByte */