import csv, time, argparse;
import datetime
import os
-
+from random import randrange
from GoodFETMCPCAN import GoodFETMCPCAN;
from intelhex import IntelHex;
# SNIFF
##########################
- def sniff(self,freq,duration,description, verbose=True, comment=None, filename=None, standardid=None, debug = False):
+ def sniff(self,freq,duration,description, verbose=True, comment=None, filename=None, standardid=None, debug=False, faster=False):
+ #reset eveything on the chip
+ self.client.serInit()
+ self.reset()
+
#### ON-CHIP FILTERING
if(standardid != None):
- comment = comment+"Filtering for SID ";
-
+ if( comment == None):
+ comment = ""
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(RXFSIDL, SIDlow);
if (verbose == True):
- print "Filtering for SID %d (0x%02xh) with filter #%d"%(ID, ID, filter);
- comment = comment + ("%d " %(ID))
+ print "Filtering for SID %d (0x%02xh) with filter #%d"%(ID, ID, filter);
+ comment = comment + ("f%d" %(ID))
self.client.MCPsetrate(freq);
starttime = time.time();
while((time.time()-starttime < duration)):
- packet=self.client.rxpacket();
+
+ if(faster):
+ packet=self.client.fastrxpacket();
+ else:
+ packet=self.client.rxpacket();
if(debug == True):
#check packet status
row.append(0); #since we don't check for errors if we're not in debug mode...
row.append(comment)
+ #how long the sniff was for
+ row.append(duration)
+ #boolean that tells us if there was filtering. 0 == no filters, 1 == filters
+ if(standardid != None):
+ row.append(1)
+ else:
+ row.append(0)
#write packet to file
for byte in packet:
row.append("%02x"%ord(byte));
return packetcount
- def filterStdSweep(self, freq = freq, time = 5):
+ def filterStdSweep(self, freq, time = 5):
msgIDs = []
- niff(self,freq,duration,description, verbose=True, comment=None, filename=None, standardid=None, debug = False):
for i in range(0, 2047, 6):
print "sniffing id: %d, %d, %d, %d, %d, %d" % (i,i+1,i+2,i+3,i+4,i+5)
comment = "sweepFilter_%d_%d_%d_%d_%d_%d" % (i,i+1,i+2,i+3,i+4,i+5)
msgIDs.append(j)
return msgIDs
+ def sweepRandom(self, freq, number = 5, time = 5,):
+ msgIDs = []
+ ids = []
+ 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)
+ 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):
rate = freq;
def freqtest(self,freq):
+
self.client.MCPsetup();
self.client.MCPsetrate(freq);
print "Data: " + self.client.packet2str(data);
def test(self):
- print "\nMCP2515 Self Test:";
- #Switch to config mode and try to rewrite TEC.
+ comm.reset();
+ print "Just reset..."
+ print "EFLG register: %02x" % self.client.peek8(0x2d);
+ print "Tx Errors: %3d" % self.client.peek8(0x1c);
+ print "Rx Errors: %3d" % self.client.peek8(0x1d);
+ print "CANINTF: %02x" %self.client.peek8(0x2C);
self.client.MCPreqstatConfiguration();
- self.client.poke8(0x00,0xde);
- if self.client.peek8(0x00)!=0xde:
- print "ERROR: Poke to TEC failed.";
- else:
- print "SUCCESS: Register read/write.";
-
- #Switch to Loopback mode and try to catch our own packet.
- self.client.MCPreqstatLoopback();
-
- packet1 = [0x00,
- 0x08, # LOWER nibble must be 8 or greater to set EXTENDED ID
- 0x00, 0x00,
- 0x08, # UPPER nibble must be 0 to set RTR bit for DATA FRAME
- # LOWER nibble is DLC
- 0x01,0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0xFF]
- self.client.txpacket(packet1);
- self.client.txpacket(packet1);
- print "Waiting on loopback packets.";
+ self.client.poke8(0x60,0x66);
+ self.client.MCPsetrate(500);
+ self.client.MCPreqstatNormal();
+ print "In normal mode now"
+ print "EFLG register: %02x" % self.client.peek8(0x2d);
+ print "Tx Errors: %3d" % self.client.peek8(0x1c);
+ print "Rx Errors: %3d" % self.client.peek8(0x1d);
+ print "CANINTF: %02x" %self.client.peek8(0x2C);
+ print "Waiting on packets.";
+ checkcount = 0;
packet=None;
while(1):
packet=self.client.rxpacket();
if packet!=None:
print "Message recieved: %s" % self.client.packet2str(packet);
- break;
+ else:
+ checkcount=checkcount+1;
+ if (checkcount%30==0):
+ print "EFLG register: %02x" % self.client.peek8(0x2d);
+ print "Tx Errors: %3d" % self.client.peek8(0x1c);
+ print "Rx Errors: %3d" % self.client.peek8(0x1d);
+ print "CANINTF: %02x" %self.client.peek8(0x2C);
+
- def spit(self,freq):
+ def spit(self,freq, standardid,debug):
+
+ comm.reset();
self.client.MCPsetrate(freq);
self.client.MCPreqstatNormal();
+ print "initial state:"
print "Tx Errors: %3d" % self.client.peek8(0x1c);
print "Rx Errors: %3d" % self.client.peek8(0x1d);
print "Error Flags: %02x\n" % self.client.peek8(0x2d);
print "TXB0CTRL: %02x" %self.client.peek8(0x30);
- print "CANINTF: %02x" %self.client.peek8(0x2C);
+ print "CANINTF: %02x\n" %self.client.peek8(0x2C);
+ print "\n\nATTEMPTING TRANSMISSION!!!"
+
+ #### split SID into different regs
+ SIDlow = (standardid[0] & 0x03) << 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
+
+ packet = [SIDhigh, SIDlow, 0x00,0x00, # pad out EID regs
+ 0x08, # bit 6 must be set to 0 for data frame (1 for RTR)
+ # lower nibble is DLC
+ 0x01,0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0xFF]
+
+ packetE = [SIDhigh, SIDlow | 0x80, 0x00,0x00, # pad out EID regs
+ 0x08, # bit 6 must be set to 0 for data frame (1 for RTR)
+ # lower nibble is DLC
+ 0x01,0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0xFF]
+
- packet = [0x00,
- 0x08, # LOWER nibble must be 8 or greater to set EXTENDED ID
- 0x00, 0x00,
- 0x08, # UPPER nibble must be 0 to set RTR bit for DATA FRAME
- # LOWER nibble is DLC
- 0x01,0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0xFF]
+ self.client.txpacket(packetE);
- self.client.txpacket(packet);
-
- if(self.client.peek8(0x2C)&0x80)==0x80:
- print "Error flag raised on transmission. Clearing this flag and proceeding.\n"
- print "INT Flags: %02x" % self.client.peek8(0x2c);
- self.client.MCPbitmodify(0x2C,0x80,0x00);
- print "INT Flags modified to: %02x\n" % self.client.peek8(0x2c);
- print "TXB0CTRL: %02x" %self.client.peek8(0x30);
- self.client.MCPbitmodify(0x30,0x08,0x00);
- print "TXB0CTRL modified to: %02x\n" %self.client.peek8(0x30);
-
- print "message sending attempted.";
- print "Tx Errors: %02x" % self.client.peek8(0x1c);
- print "Rx Errors: %02x" % self.client.peek8(0x1d);
- print "Error Flags: %02x" % self.client.peek8(0x2d);
+ checkcount = 0;
+ TXB0CTRL = self.client.peek8(0x30);
+ while(TXB0CTRL | 0x00 != 0x00):
+ checkcount+=1;
+ TXB0CTRL = self.client.peek8(0x30);
+ if (checkcount %30 ==0):
+ print "Tx Errors: %3d" % self.client.peek8(0x1c);
+ print "Rx Errors: %3d" % self.client.peek8(0x1d);
+ print "EFLG register: %02x" % self.client.peek8(0x2d);
+ print "TXB0CTRL: %02x" %TXB0CTRL;
+ print "CANINTF: %02x\n" %self.client.peek8(0x2C);
+
+
+
+
if __name__ == "__main__":
parser.add_argument('-c','--comment', help='Comment attached to ech packet uploaded',default=None);
parser.add_argument('-b', '--debug', action='store_true', help='-b will turn on debug mode, printing packet status', default=False);
parser.add_argument('-a', '--standardid', type=int, action='append', help='Standard ID to accept with filter 0 [1, 2, 3, 4, 5]', default=None);
+ parser.add_argument('-x', '--faster', action='store_true', help='-x will use "fast packet recieve," which may duplicate packets and/or cause other weird behavior', default=False);
args = parser.parse_args();
comments = args.comment
debug = args.debug
standardid = args.standardid
+ faster=args.faster
comm = GoodFETMCPCANCommunication();
#
if(args.verb=="sniff"):
- comm.sniff(freq=freq,duration=duration,description=description,verbose=verbose,comment=comments,filename=filename, standardid=standardid)
+ comm.sniff(freq=freq,duration=duration,description=description,verbose=verbose,comment=comments,filename=filename, standardid=standardid, debug=debug, faster=faster)
##########################
# SNIFF TEST
# 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)
+ comm.spit(freq=freq, standardid=standardid, debug=debug)
projects / goodfet / blobdiff