rldf1.cpp File Reference

#include "rldf1.h"
#include <time.h>

Include dependency graph for rldf1.cpp:

Go to the source code of this file.

Classes
class	df1Buffer

Macros
#define	DBGPRINTF(x...)

Functions
static unsigned short	calcCRC (unsigned short crc, unsigned short buffer)
static unsigned short	computeCRC (const unsigned char *buffer, int len)

Macro Definition Documentation

DBGPRINTF

#define DBGPRINTF

(

x...

)

Definition at line 41 of file rldf1.cpp.

Function Documentation

calcCRC()

static unsigned short calcCRC ( unsigned short  crc, unsigned short  buffer  )

static

Definition at line 118 of file rldf1.cpp.

{
    unsigned short temp1, y;
    temp1 = crc ^ buffer;
    crc = (crc & 0xff00) | (temp1 & 0xff);
    for (y = 0; y < 8; y++) {
        if (crc & 1) {
            crc = crc >> 1;
            crc ^= 0xa001;
        } else
            crc = crc >> 1;
    }
    return crc;
}

computeCRC()

static unsigned short computeCRC ( const unsigned char *  buffer, int  len  )

static

Definition at line 133 of file rldf1.cpp.

{
    unsigned short crc = 0;
    for (int x=0; x<len; x++) {
        crc = calcCRC(crc, (unsigned short)buffer[x] );
    }
    crc = calcCRC (crc,0x03); // ETX
    return (crc);
}