kumi/MFRC522-python
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Finished it

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Added CalulateCRC, the Auth func,  and the read and write functions. They work, and it's awesome.
This commit is contained in:
Cotix 2013-09-23 09:05:06 +02:00
parent bacaeddece
commit 0bd5ebf0dc
1 changed files with 389 additions and 296 deletions
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157
MFRC522.py
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@ -1,8 +1,10 @@
import RPi.GPIO as GPIO
import spi
import signal
class MFRC522:
import RPi.GPIO as GPIO
import spi
import signal
class MFRC522:
NRSTPD = 22
MAX_LEN = 16
@ -103,21 +105,6 @@ class MFRC522:
serNum = []
writeData = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 100]
moneyConsume = 18
moneyAdd = 10
sectorKeyA = [
[0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF],
[0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF],
[0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF],
]
sectorNewKeyA = [
[0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF],
[0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xff,0x07,0x80,0x69, 0x19,0x84,0x07,0x15,0x76,0x14],
[0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xff,0x07,0x80,0x69, 0x19,0x33,0x07,0x15,0x34,0x14],
]
def __init__(self,spd=1000000):
spi.openSPI(speed=spd)
@ -172,26 +159,21 @@ class MFRC522:
self.Write_MFRC522(self.CommIEnReg, irqEn|0x80)
self.ClearBitMask(self.CommIrqReg, 0x80)
self.SetBitMask(self.FIFOLevelReg, 0x80)
self.Write_MFRC522(self.CommandReg, self.PCD_IDLE);
while(i<len(sendData)):
self.Write_MFRC522(self.FIFODataReg, sendData[i])
i = i+1
self.Write_MFRC522(self.CommandReg, command)
if command == self.PCD_TRANSCEIVE:
self.SetBitMask(self.BitFramingReg, 0x80)
i = 2000
while True:
n = self.Read_MFRC522(self.CommIrqReg)
i = i - 1
if ~((i!=0) and ~(n&0x01) and ~(n&waitIRq)):
break
self.ClearBitMask(self.BitFramingReg, 0x80)
if i != 0:
@ -207,7 +189,6 @@ class MFRC522:
backLen = (n-1)*8 + lastBits
else:
backLen = n*8
if n == 0:
n = 1
if n > self.MAX_LEN:
@ -265,6 +246,105 @@ class MFRC522:
return (status,backData)
def CalulateCRC(self, pIndata):
self.ClearBitMask(self.DivIrqReg, 0x04)
self.SetBitMask(self.FIFOLevelReg, 0x80);
i = 0
while i<len(pIndata):
self.Write_MFRC522(self.FIFODataReg, pIndata[i])
i = i + 1
self.Write_MFRC522(self.CommandReg, self.PCD_CALCCRC)
i = 0xFF
while True:
n = self.Read_MFRC522(self.DivIrqReg)
i = i - 1
if not ((i != 0) and not (n&0x04)):
break
pOutData = []
pOutData.append(self.Read_MFRC522(self.CRCResultRegL))
pOutData.append(self.Read_MFRC522(self.CRCResultRegM))
return pOutData
def MFRC522_SelectTag(self, serNum):
backData = []
buf = []
buf.append(self.PICC_SElECTTAG)
buf.append(0x70)
i = 0
while i<5:
buf.append(serNum[i])
i = i + 1
pOut = self.CalulateCRC(buf)
buf.append(pOut[0])
buf.append(pOut[1])
(status, backData, backLen) = self.MFRC522_ToCard(self.PCD_TRANSCEIVE, buf)
if (status == self.MI_OK) and (backLen == 0x18):
size = backData[0]
else:
size = 0
return size
def MFRC522_Auth(self, authMode, BlockAddr, Sectorkey, serNum):
buff = []
buff.append(authMode)
buff.append(BlockAddr)
i = 0
while(i < 6):
buff.append(Sectorkey[i])
i = i + 1
i = 0
while(i < 4):
buff.append(serNum[i])
i = i +1
(status, backData, backLen) = self.MFRC522_ToCard(self.PCD_AUTHENT,buff)
if not(status == self.MI_OK):
print "AUTH ERROR!!"
if not(self.Read_MFRC522(self.Status2Reg) & 0x08):
print "AUTH ERROR(status2reg & 0x08 != 0"
def MFRC522_Read(self, blockAddr):
recvData = []
recvData.append(self.PICC_READ)
recvData.append(blockAddr)
pOut = self.CalulateCRC(recvData)
recvData.append(pOut[0])
recvData.append(pOut[1])
(status, backData, backLen) = self.MFRC522_ToCard(self.PCD_TRANSCEIVE, recvData)
if not(status == self.MI_OK):
print "Error while reading!"
print "Got data size: "+str(backLen)
i = 0
if len(backData) == 16:
print "Sector "+str(blockAddr)+" "+str(backData)
def MFRC522_Write(self, blockAddr, writeData):
buff = []
buff.append(self.PICC_WRITE)
buff.append(blockAddr)
crc = self.CalulateCRC(buff)
buff.append(crc[0])
buff.append(crc[1])
(status, backData, backLen) = self.MFRC522_ToCard(self.PCD_TRANSCEIVE, buff)
if not(status == self.MI_OK) or not(backLen == 4) or not((backData[0] & 0x0F) == 0x0A):
status = self.MI_ERR
print str(backLen)+" backdata &0x0F == 0x0A "+str(backData[0]&0x0F)
if status == self.MI_OK:
i = 0
buf = []
while i < 16:
buf.append(writeData[i])
i = i + 1
crc = self.CalulateCRC(buf)
buf.append(crc[0])
buf.append(crc[1])
(status, backData, backLen) = self.MFRC522_ToCard(self.PCD_TRANSCEIVE,buf)
if not(status == self.MI_OK) or not(backLen == 4) or not((backData[0] & 0x0F) == 0x0A):
print "Error while writing"
if status == self.MI_OK:
print "Data writen"
def MFRC522_Init(self):
GPIO.output(self.NRSTPD, 1)
@ -280,18 +360,18 @@ class MFRC522:
self.Write_MFRC522(self.ModeReg, 0x3D)
self.AntennaOn()
continue_reading = True
# Capture SIGINT
def end_read(signal,frame):
continue_reading = True
# Capture SIGINT
def end_read(signal,frame):
global continue_reading
print "Ctrl+C captured, ending read."
continue_reading = False
signal.signal(signal.SIGINT, end_read)
signal.signal(signal.SIGINT, end_read)
MIFAREReader = MFRC522()
MIFAREReader = MFRC522()
while continue_reading:
while continue_reading:
(status,TagType) = MIFAREReader.MFRC522_Request(MIFAREReader.PICC_REQIDL)
if status == MIFAREReader.MI_OK:
@ -299,4 +379,17 @@ while continue_reading:
(status,backData) = MIFAREReader.MFRC522_Anticoll()
if status == MIFAREReader.MI_OK:
print "Numero de la tarjeta: "+str(backData[0])+","+str(backData[1])+","+str(backData[2])+","+str(backData[3])+","+str(backData[4])
print "Card read UID: "+str(backData[0])+","+str(backData[1])+","+str(backData[2])+","+str(backData[3])+","+str(backData[4])
MIFAREReader.MFRC522_SelectTag(backData)
key = [0xFF,0xFF,0xFF,0xFF,0xFF]
MIFAREReader.MFRC522_Auth(0x60,0,keyA,backData)
MIFAREReader.MFRC522_Read(0)
i = 1
while i < 64:
MIFAREReader.MFRC522_Auth(0x60,i,keyA,backData)
MIFAREReader.MFRC522_Read(i)
i = i + 1