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crc.py
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#!C:\Python27
from struct import unpack_from , pack, calcsize
import sys, sqlite3
import re
sql_name = "C:\Users\ggg\Desktop\log\db.sqlite"
cmd = "select eslid from bind_list"
crc16tab = [
0x0000,0x1021,0x2042,0x3063,0x4084,0x50a5,0x60c6,0x70e7,
0x8108,0x9129,0xa14a,0xb16b,0xc18c,0xd1ad,0xe1ce,0xf1ef,
0x1231,0x0210,0x3273,0x2252,0x52b5,0x4294,0x72f7,0x62d6,
0x9339,0x8318,0xb37b,0xa35a,0xd3bd,0xc39c,0xf3ff,0xe3de,
0x2462,0x3443,0x0420,0x1401,0x64e6,0x74c7,0x44a4,0x5485,
0xa56a,0xb54b,0x8528,0x9509,0xe5ee,0xf5cf,0xc5ac,0xd58d,
0x3653,0x2672,0x1611,0x0630,0x76d7,0x66f6,0x5695,0x46b4,
0xb75b,0xa77a,0x9719,0x8738,0xf7df,0xe7fe,0xd79d,0xc7bc,
0x48c4,0x58e5,0x6886,0x78a7,0x0840,0x1861,0x2802,0x3823,
0xc9cc,0xd9ed,0xe98e,0xf9af,0x8948,0x9969,0xa90a,0xb92b,
0x5af5,0x4ad4,0x7ab7,0x6a96,0x1a71,0x0a50,0x3a33,0x2a12,
0xdbfd,0xcbdc,0xfbbf,0xeb9e,0x9b79,0x8b58,0xbb3b,0xab1a,
0x6ca6,0x7c87,0x4ce4,0x5cc5,0x2c22,0x3c03,0x0c60,0x1c41,
0xedae,0xfd8f,0xcdec,0xddcd,0xad2a,0xbd0b,0x8d68,0x9d49,
0x7e97,0x6eb6,0x5ed5,0x4ef4,0x3e13,0x2e32,0x1e51,0x0e70,
0xff9f,0xefbe,0xdfdd,0xcffc,0xbf1b,0xaf3a,0x9f59,0x8f78,
0x9188,0x81a9,0xb1ca,0xa1eb,0xd10c,0xc12d,0xf14e,0xe16f,
0x1080,0x00a1,0x30c2,0x20e3,0x5004,0x4025,0x7046,0x6067,
0x83b9,0x9398,0xa3fb,0xb3da,0xc33d,0xd31c,0xe37f,0xf35e,
0x02b1,0x1290,0x22f3,0x32d2,0x4235,0x5214,0x6277,0x7256,
0xb5ea,0xa5cb,0x95a8,0x8589,0xf56e,0xe54f,0xd52c,0xc50d,
0x34e2,0x24c3,0x14a0,0x0481,0x7466,0x6447,0x5424,0x4405,
0xa7db,0xb7fa,0x8799,0x97b8,0xe75f,0xf77e,0xc71d,0xd73c,
0x26d3,0x36f2,0x0691,0x16b0,0x6657,0x7676,0x4615,0x5634,
0xd94c,0xc96d,0xf90e,0xe92f,0x99c8,0x89e9,0xb98a,0xa9ab,
0x5844,0x4865,0x7806,0x6827,0x18c0,0x08e1,0x3882,0x28a3,
0xcb7d,0xdb5c,0xeb3f,0xfb1e,0x8bf9,0x9bd8,0xabbb,0xbb9a,
0x4a75,0x5a54,0x6a37,0x7a16,0x0af1,0x1ad0,0x2ab3,0x3a92,
0xfd2e,0xed0f,0xdd6c,0xcd4d,0xbdaa,0xad8b,0x9de8,0x8dc9,
0x7c26,0x6c07,0x5c64,0x4c45,0x3ca2,0x2c83,0x1ce0,0x0cc1,
0xef1f,0xff3e,0xcf5d,0xdf7c,0xaf9b,0xbfba,0x8fd9,0x9ff8,
0x6e17,0x7e36,0x4e55,0x5e74,0x2e93,0x3eb2,0x0ed1,0x1ef0
]
def my_cal_crc16(crc ,ptr, lengh):
for counter in range(lengh):
value = unpack_from('B',ptr,counter)[0]
crc = ((crc<<8)%65536 ^ crc16tab[((crc>>8)%65536 ^ value )])%65536
return crc
def str_to_uchar_crc(crc, string):
myarray = map(lambda x:int(''.join(x),16), zip(string[0::2], string[1::2]))
fmt = '<%dB' % len(myarray)
string = pack(fmt, *myarray)
crc = my_cal_crc16(crc, string, calcsize(fmt))
return crc
def ret_match_id(ret_string, ret_id):
crc_read = ret_string[-2:] + ret_string[-4:-2]
crc_value = str_to_uchar_crc(0, ret_string[:-4])
tmp_crc = crc_value
for eslid in ret_id:
tmp_crc = str_to_uchar_crc(tmp_crc, eslid)
## crc_str = format(tmp_crc, 'x').upper()
if tmp_crc == int(crc_read, 16):
return eslid
else:
tmp_crc = crc_value
return 'Nothing '
##def read_id():
## if len(sys.argv) < 2:
## conn = sqlite3.connect(sql_name)
## conn.text_factory = lambda x: unicode(x, 'utf-8', 'ignore')
## curs = conn.cursor()
##
## curs.execute(cmd)
## id_list = [row[0] for row in curs.fetchall()]
## conn.close()
## else:
## filename = sys.argv[1]
## id_list = open(filename, 'r').readlines()
## id_list = [eslid.strip('\n') for eslid in id_list]
##
## id_list = [str(''.join(row.split('-'))) for row in id_list]
## return id_list
def read_id():
if len(sys.argv) < 2:
conn = sqlite3.connect(sql_name)
conn.text_factory = lambda x: unicode(x, 'utf-8', 'ignore')
curs = conn.cursor()
curs.execute(cmd)
for row in curs.fetchall():
yield row[0].replace('-','')
conn.close()
else:
filename = sys.argv[1]
with open(filename, 'r') as f:
for eslid in f.readlines() :
yield eslid.replace('-','')
if __name__ == '__main__':
## id_list = []
id_list = read_id()
with open('serial_log.txt', 'r') as f, open('serial_log_id.txt', 'w') as fw:
for x in f:
## lines = [x for x in lines.split() if len(x)==52]
lines = x.split()
for i, eachline in enumerate(lines):
if len(eachline) != 52:
continue
eslid = ret_match_id(eachline, id_list)
eslid=''.join((eslid[0:2],'-',eslid[2:4],'-',eslid[4:6],'-', eslid[6:8])).upper()
if eachline[-48:-46] == '00':
eachline = ''.join((eslid, ' ', 'ok',' ', lines[i-1] , eachline, '\n'))
else:
eachline = ''.join((eslid, ' ', eachline[-48:-46], ' ', lines[i-1], eachline, '\n'))
fw.write(eachline)
#string='60EA00004000000000000000000000000000000000000010AEC3'
##string='F01E5A10055A02BDED9E9E9E3CAFDF54'
###string='5050571BCC575D7A04B2B2B209111F77'
##crc = str_to_uchar_crc(0,string[:-4])
##crc = str_to_uchar_crc(crc,'5A02BDED')
##crc_str = format(crc, 'x')
##print crc_str
##myarray = map(lambda x:int(''.join(x),16), zip(string[0::2], string[1::2]))
##a = ['0x'+format(n, 'x') for n in myarray]
##a = str(a).replace("'", '').replace('[','{').replace(']','}')
##print a