blob: db10131dedf889686a29329a55948575a601771d (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
|
#ifndef CRC16_H
#define CRC16_H
#ifdef __cplusplus
extern "C" {
#endif
/*
* Derived from CRC algorithm for JTAG ICE mkII, published in Atmel
* Appnote AVR067. Converted from C++ to C.
*/
extern unsigned short crcsum(const unsigned char* message,
unsigned long length,
unsigned short crc);
/*
* Verify that the last two bytes is a (LSB first) valid CRC of the
* message.
*/
extern int crcverify(const unsigned char* message,
unsigned long length);
/*
* Append a two byte CRC (LSB first) to message. length is size of
* message excluding crc. Space for the CRC bytes must be allocated
* in advance!
*/
extern void crcappend(unsigned char* message,
unsigned long length);
#ifdef __cplusplus
}
#endif
#endif
|
