calo/unpacking/testcrc.c

/***************************************************************
 *
 * routine read_ev: routine to extract an event information 
 * from file acquired with Pamela acquisition programs
 *
 * June 2002
 *
 ***************************************************************/
/*
 * include needed system headers
 */
#include <stdio.h>       /* include standard i/o library */
#include <stdlib.h>      /* include standard library */
#include <string.h>      /* include string library */
#include <unistd.h>      /* include unix standard library */
#include <sys/types.h>   /* */
#include <sys/stat.h>    /* */
#include <fcntl.h>       /* */
#include <errno.h>       /* error simbol definitions */
#include <time.h>        /* system time definitions */
#include <math.h>        /* math library */
#include "CRC.h"
//extern "C" {  
 extern struct {
     unsigned char buffer[16];
    } header_; 

    void data2ntp_();
    //Struct per il passaggio di dati da e verso la chiamata fortran
//}

void testcrc_(unsigned char *crc, int *error)
{
    int i,j;
    unsigned char ubuffer;
    unsigned char calcrc;
    unsigned char buff2[16];
    *error = 1; 

    j = 0;
    for (i = 0; i < 16; i++){
        //      memcpy(&ubuffer<<i, header_.buffer[i], sizeof(header_.buffer));
        if ( i < 8 ) {
            memcpy(&buff2[7-i], &header_.buffer[i], sizeof(header_.buffer[i]));
        } else {
            j++;
            memcpy(&buff2[16-j], &header_.buffer[i], sizeof(unsigned char));
        }
    }
    //    for (i = 0; i < 16; i++){
    //printf("%i : buff2  %X\n",i,buff2[i]);
    //}
    
    calcrc=CM_Compute_CRC16(0, &buff2, 15);

    //printf("%X = %X ? \n",calcrc,*crc);
    
    if ((unsigned char)calcrc == (unsigned char)*crc) *error = 0;

}
1	mocchiut	1.1	/***************************************************************
2			*
3			* routine read_ev: routine to extract an event information
4			* from file acquired with Pamela acquisition programs
5			*
6			* June 2002
7			*
8			***************************************************************/
9			/*
10			* include needed system headers
11			*/
12			#include <stdio.h> /* include standard i/o library */
13			#include <stdlib.h> /* include standard library */
14			#include <string.h> /* include string library */
15			#include <unistd.h> /* include unix standard library */
16			#include <sys/types.h> /* */
17			#include <sys/stat.h> /* */
18			#include <fcntl.h> /* */
19			#include <errno.h> /* error simbol definitions */
20			#include <time.h> /* system time definitions */
21			#include <math.h> /* math library */
22			#include "CRC.h"
23			//extern "C" {
24			extern struct {
25			unsigned char buffer[16];
26			} header_;
27
28			void data2ntp_();
29			//Struct per il passaggio di dati da e verso la chiamata fortran
30			//}
31
32			void testcrc_(unsigned char crc, int error)
33			{
34			int i,j;
35			unsigned char ubuffer;
36			unsigned char calcrc;
37			unsigned char buff2[16];
38			*error = 1;
39
40			j = 0;
41			for (i = 0; i < 16; i++){
42			// memcpy(&ubuffer<<i, header_.buffer[i], sizeof(header_.buffer));
43			if ( i < 8 ) {
44			memcpy(&buff2[7-i], &header_.buffer[i], sizeof(header_.buffer[i]));
45			} else {
46			j++;
47			memcpy(&buff2[16-j], &header_.buffer[i], sizeof(unsigned char));
48			}
49			}
50			// for (i = 0; i < 16; i++){
51			//printf("%i : buff2 %X\n",i,buff2[i]);
52			//}
53
54			calcrc=CM_Compute_CRC16(0, &buff2, 15);
55
56			//printf("%X = %X ? \n",calcrc,*crc);
57
58			if ((unsigned char)calcrc == (unsigned char)crc) error = 0;
59
60			}