from random import randrange
from GoodFETMCPCAN import GoodFETMCPCAN;
from intelhex import IntelHex;
+import Queue
class GoodFETMCPCANCommunication:
# SNIFF
##########################
- def sniff(self,freq,duration,description, verbose=True, comment=None, filename=None, standardid=None, debug=False, faster=False, parsed=True):
+ def sniff(self,freq,duration,description, verbose=True, comment=None, filename=None, standardid=None, debug=False, faster=False, parsed=True, data = None,writeToFile=True):
#reset eveything on the chip
self.client.serInit()
self.client.MCPsetrate(freq);
# This will handle the files so that we do not loose them. each day we will create a new csv file
- if( filename==None):
+ if( filename==None and writeToFile == True):
#get folder information (based on today's date)
now = datetime.datetime.now()
datestr = now.strftime("%Y%m%d")
path = self.DATALOCATION+datestr+".csv"
filename = path
-
- outfile = open(filename,'a');
- dataWriter = csv.writer(outfile,delimiter=',');
- dataWriter.writerow(['# Time Error Bytes 1-13']);
- dataWriter.writerow(['#' + description])
-
+ if( writeToFile == True):
+ outfile = open(filename,'a');
+ dataWriter = csv.writer(outfile,delimiter=',');
+ dataWriter.writerow(['# Time Error Bytes 1-13']);
+ dataWriter.writerow(['#' + description])
+
self.client.MCPreqstatNormal();
print "Listening...";
packetcount = 0;
packet=self.client.fastrxpacket();
else:
packet=self.client.rxpacket();
-
+
+ #add the data to list if the pointer was included
+ if(data != None and packet != None):
+ #data.append(self.client.packet2parsedstr(packet))
+ packetParsed = self.client.packet2parsed(packet)
+ packetParsed["time"] =time.time()
+ data.put(packetParsed)
if(debug == True):
#check packet status
MCPstatusReg = self.client.MCPrxstatus();
print "Message in RXB0; message type is %02x (0x00 is standard data, 0x08 is standard remote)." %messagetype
elif(messagestat == 0x00):
print "No messages in buffers."
-
- if packet!=None:
-
+ #check to see if there was a packet
+ if( packet != None):
packetcount+=1;
+ if (packet!=None and writeToFile == True):
+
row = [];
row.append("%f"%time.time());
for i in range(0,length):
dbidx = 'db%d'%i
msg +=" %03d"% ord(packetParsed[dbidx])
+ #msg = self.client.packet2parsedstr(packet)
print msg
# if we want to print just the message as it is read off the chip
else:
for byte in packet:
row.append("%02x"%ord(byte));
dataWriter.writerow(row);
-
- outfile.close()
+ if(writeToFile == True):
+ outfile.close()
print "Listened for %d seconds, captured %d packets." %(duration,packetcount);
return packetcount
- def filterStdSweep(self, freq, low, high, time = 5):
- msgIDs = []
- self.client.serInit()
- self.client.MCPsetup()
- for i in range(low, high, 6):
- print "sniffing id: %d, %d, %d, %d, %d, %d" % (i,i+1,i+2,i+3,i+4,i+5)
- comment= "sweepFilter: "
- #comment = "sweepFilter_%d_%d_%d_%d_%d_%d" % (i,i+1,i+2,i+3,i+4,i+5)
- description = "Running a sweep filer for all the possible standard IDs. This run filters for: %d, %d, %d, %d, %d, %d" % (i,i+1,i+2,i+3,i+4,i+5)
- count = self.sniff(freq=freq, duration = time, description = description,comment = comment, standardid = [i, i+1, i+2, i+3, i+4, i+5])
- if( count != 0):
- for j in range(i,i+5):
- comment = "sweepFilter: "
- #comment = "sweepFilter: %d" % (j)
- description = "Running a sweep filer for all the possible standard IDs. This run filters for: %d " % j
- count = self.sniff(freq=freq, duration = time, description = description,comment = comment, standardid = [j, j, j, j])
- if( count != 0):
- msgIDs.append(j)
- return msgIDs
-
- def sweepRandom(self, freq, number = 5, time = 200):
- msgIDs = []
- ids = []
- self.client.serInit()
- self.client.MCPsetup()
- for i in range(0,number,6):
- idsTemp = []
- comment = "sweepFilter: "
- for j in range(0,6,1):
- id = randrange(2047)
- #comment += "_%d" % id
- idsTemp.append(id)
- ids.append(id)
- print comment
- description = "Running a sweep filer for all the possible standard IDs. This runs the following : " + comment
- count = self.sniff(freq=freq, duration=time, description=description, comment = comment, standardid = idsTemp)
- if( count != 0):
- for element in idsTemp:
- #comment = "sweepFilter: %d" % (element)
- comment="sweepFilter: "
- description = "Running a sweep filer for all the possible standard IDs. This run filters for: %d " % element
- count = self.sniff(freq=freq, duration = time, description = description,comment = comment, standardid = [element, element, element])
- if( count != 0):
- msgIDs.append(j)
- return msgIDs, ids
+# def filterStdSweep(self, freq, low, high, time = 5):
+# msgIDs = []
+# self.client.serInit()
+# self.client.MCPsetup()
+# for i in range(low, high+1, 6):
+# print "sniffing id: %d, %d, %d, %d, %d, %d" % (i,i+1,i+2,i+3,i+4,i+5)
+# comment= "sweepFilter: "
+# #comment = "sweepFilter_%d_%d_%d_%d_%d_%d" % (i,i+1,i+2,i+3,i+4,i+5)
+# description = "Running a sweep filer for all the possible standard IDs. This run filters for: %d, %d, %d, %d, %d, %d" % (i,i+1,i+2,i+3,i+4,i+5)
+# count = self.sniff(freq=freq, duration = time, description = description,comment = comment, standardid = [i, i+1, i+2, i+3, i+4, i+5])
+# if( count != 0):
+# for j in range(i,i+5):
+# comment = "sweepFilter: "
+# #comment = "sweepFilter: %d" % (j)
+# description = "Running a sweep filer for all the possible standard IDs. This run filters for: %d " % j
+# count = self.sniff(freq=freq, duration = time, description = description,comment = comment, standardid = [j, j, j, j])
+# if( count != 0):
+# msgIDs.append(j)
+# return msgIDs
+
+# def sweepRandom(self, freq, number = 5, time = 200):
+# msgIDs = []
+# ids = []
+# self.client.serInit()
+# self.client.MCPsetup()
+# for i in range(0,number+1,6):
+# idsTemp = []
+# comment = "sweepFilter: "
+# for j in range(0,6,1):
+# id = randrange(2047)
+# #comment += "_%d" % id
+# idsTemp.append(id)
+# ids.append(id)
+# print comment
+# description = "Running a sweep filer for all the possible standard IDs. This runs the following : " + comment
+# count = self.sniff(freq=freq, duration=time, description=description, comment = comment, standardid = idsTemp)
+# if( count != 0):
+# for element in idsTemp:
+# #comment = "sweepFilter: %d" % (element)
+# comment="sweepFilter: "
+# description = "Running a sweep filer for all the possible standard IDs. This run filters for: %d " % element
+# count = self.sniff(freq=freq, duration = time, description = description,comment = comment, standardid = [element, element, element])
+# if( count != 0):
+# msgIDs.append(j)
+# return msgIDs, ids
def sniffTest(self, freq):
print "CANINTF: %02x" %self.client.peek8(0x2C);
+
+
+ def addFilter(self,standardid, verbose= True):
+ comment = None
+ ### ON-CHIP FILTERING
+ if(standardid != None):
+ self.client.MCPreqstatConfiguration();
+ self.client.poke8(0x60,0x26); # set RXB0 CTRL register to ONLY accept STANDARD messages with filter match (RXM1=0, RMX0=1, BUKT=1)
+ self.client.poke8(0x20,0xFF); #set buffer 0 mask 1 (SID 10:3) to FF
+ self.client.poke8(0x21,0xE0); #set buffer 0 mask 2 bits 7:5 (SID 2:0) to 1s
+ if(len(standardid)>2):
+ self.client.poke8(0x70,0x20); # set RXB1 CTRL register to ONLY accept STANDARD messages with filter match (RXM1=0, RMX0=1)
+ self.client.poke8(0x24,0xFF); #set buffer 1 mask 1 (SID 10:3) to FF
+ self.client.poke8(0x25,0xE0); #set buffer 1 mask 2 bits 7:5 (SID 2:0) to 1s
+
+ for filter,ID in enumerate(standardid):
+
+ if (filter==0):
+ RXFSIDH = 0x00;
+ RXFSIDL = 0x01;
+ elif (filter==1):
+ RXFSIDH = 0x04;
+ RXFSIDL = 0x05;
+ elif (filter==2):
+ RXFSIDH = 0x08;
+ RXFSIDL = 0x09;
+ elif (filter==3):
+ RXFSIDH = 0x10;
+ RXFSIDL = 0x11;
+ elif (filter==4):
+ RXFSIDH = 0x14;
+ RXFSIDL = 0x15;
+ else:
+ RXFSIDH = 0x18;
+ RXFSIDL = 0x19;
+
+ #### split SID into different regs
+ SIDlow = (ID & 0x07) << 5; # get SID bits 2:0, rotate them to bits 7:5
+ SIDhigh = (ID >> 3) & 0xFF; # get SID bits 10:3, rotate them to bits 7:0
+
+ #write SID to regs
+ self.client.poke8(RXFSIDH,SIDhigh);
+ self.client.poke8(RXFSIDL, SIDlow);
+
+ if (verbose == True):
+ print "Filtering for SID %d (0x%02xh) with filter #%d"%(ID, ID, filter);
+
+ self.client.MCPreqstatNormal();
+
+
+
def spitSetup(self,freq):
self.reset();
self.client.MCPsetrate(freq);
self.client.MCPreqstatNormal();
- def spit(self,freq, standardid, repeat, duration = None, debug = False, packet = None):
+ def spitSingle(self,freq, standardid, repeat, duration = None, debug = False, packet = None):
self.spitSetup(freq);
-
+ spit(self,freq, standardid, repeat, duration = None, debug = False, packet = None)
+
+ def spit(self,freq, standardid, repeat,writes, period = None, debug = False, packet = None):
+
+
#### split SID into different regs
SIDlow = (standardid[0] & 0x07) << 5; # get SID bits 2:0, rotate them to bits 7:5
SIDhigh = (standardid[0] >> 3) & 0xFF; # get SID bits 10:3, rotate them to bits 7:0
print "Transmitting packet: "
- for byte in packet:
- print "%02x " %byte,
+ #print self.client.packet2str(packet)
self.client.txpacket(packet);
if repeat:
print "\nNow looping on transmit. "
- if duration!= None:
- starttime = time.time();
- while((time.time()-starttime < duration)):
+ if period != None:
+ for i in range(0,writes):
self.client.MCPrts(TXB0=True);
+ #tic = time.time()
+ time.sleep(period/1000) # pause for period ms before sending again
+ #print time.time()-tic
+ #starttime = time.time();
+ #while((time.time()-starttime < duration)):
+ # self.client.MCPrts(TXB0=True);
+ # print "MSG printed"
else:
- while(1):
+ for i in range(0,writes):
self.client.MCPrts(TXB0=True);
-
+ print "messages injected"
+
# MORE DEBUGGING
if(debug):
checkcount = 0;
self.client.MCPsetrate(freq);
-
+ # This will write the data provided in the packets which is expected to be a list of lists
+ # of the following form:
+ # for a given row = packets[i]
+ # row[0] time delay relative to the last packet. if 0 or empty there will be no delay
+ # row[1] = Standard ID (integer)
+ # row[2] = Data Length (0-8) (if it is zero we assume an Remote Transmit Request)
+ # row[3] = Data Byte 0
+ # row[4] = Data Byte 1
+ # .... up to Data Byte 8 ( THIS ASSUMES A PACKET OF LENGTH 8!!!
+ def writeData(self,packets,freq):
+ self.client.serInit()
+ self.spitSetup(freq)
+ for row in packets:
+ if( row[0] != 0 and row[0] != ""):
+ time.sleep(row[0])
+ sID = row[1]
+ #### split SID into different regs
+ SIDlow = (sID & 0x07) << 5; # get SID bits 2:0, rotate them to bits 7:5
+ SIDhigh = (sID >> 3) & 0xFF; # get SID bits 10:3, rotate them to bits 7:0
+ packet = [SIDhigh,SIDlow,0x00,0x00,0x08]
+ #dlc = row[2]
+ dlc = 8
+ for i in range(3,dlc+3):
+ packet.append(row[i])
+ print packet
+ self.client.txpacket(packet)
+
+
+
+
if __name__ == "__main__":
# transmission (travis thinks this is because we're sniffing in listen-only
# and thus not generating an ack bit on the recieving board)
if(args.verb=="spit"):
- comm.spit(freq=freq, standardid=standardid,duration=duration, repeat=repeat, debug=debug)
+ comm.spitSingle(freq=freq, standardid=standardid,duration=duration, repeat=repeat, debug=debug)
projects / goodfet / blobdiff