X-Git-Url: http://git.rot13.org/?p=goodfet;a=blobdiff_plain;f=client%2FGoodFETMCPCANCommunication.py;h=f91958eecedfa95af8022d347448bf5ce7e1f22e;hp=8f844442951f8b2ba07c2c600034549c21161506;hb=8e28954868efbb609df0c37369b8d1ec9425d4f1;hpb=0ae264174cce3185306e372c3f869db311d0a01a diff --git a/client/GoodFETMCPCANCommunication.py b/client/GoodFETMCPCANCommunication.py index 8f84444..f91958e 100644 --- a/client/GoodFETMCPCANCommunication.py +++ b/client/GoodFETMCPCANCommunication.py @@ -72,7 +72,7 @@ class GoodFETMCPCANCommunication: # SNIFF ########################## - def sniff(self,freq,duration,description, verbose=True, comment=None, filename=None, standardid=None, debug=False, faster=False): + def sniff(self,freq,duration,description, verbose=True, comment=None, filename=None, standardid=None, debug=False, faster=False, parsed=True): #reset eveything on the chip self.client.serInit() @@ -113,7 +113,7 @@ class GoodFETMCPCANCommunication: RXFSIDL = 0x19; #### split SID into different regs - SIDlow = (ID & 0x03) << 5; # get SID bits 2:0, rotate them to bits 7:5 + 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 @@ -122,7 +122,7 @@ class GoodFETMCPCANCommunication: if (verbose == True): print "Filtering for SID %d (0x%02xh) with filter #%d"%(ID, ID, filter); - comment = comment + ("f%d" %(ID)) + comment += ("f%d" %(ID)) self.client.MCPsetrate(freq); @@ -174,7 +174,24 @@ class GoodFETMCPCANCommunication: row.append("%f"%time.time()); if( verbose==True): - print self.client.packet2str(packet) + #if we want to print a parsed message + if( parsed == True): + packetParsed = self.client.packet2parsed(packet) + sId = packetParsed.get('sID') + msg = "sID: %04d" %sId + if( packetParsed.get('eID')): + msg += " eID: %d" %packetParsed.get('eID') + msg += " rtr: %d"%packetParsed['rtr'] + length = packetParsed['length'] + msg += " length: %d"%length + msg += " data:" + for i in range(0,length): + dbidx = 'db%d'%i + msg +=" %03d"% ord(packetParsed[dbidx]) + print msg + # if we want to print just the message as it is read off the chip + else: + print self.client.packet2str(packet) if(debug == True): @@ -218,31 +235,37 @@ class GoodFETMCPCANCommunication: return packetcount - def filterStdSweep(self, freq, time = 5): + def filterStdSweep(self, freq, low, high, time = 5): msgIDs = [] - for i in range(0, 2047, 6): + 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_%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: %d" % (j) + 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]) + 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 = 5,): + 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" + comment = "sweepFilter: " for j in range(0,6,1): id = randrange(2047) - comment += "_%d" % id + #comment += "_%d" % id idsTemp.append(id) ids.append(id) print comment @@ -250,7 +273,8 @@ class GoodFETMCPCANCommunication: 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: %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): @@ -332,54 +356,131 @@ class GoodFETMCPCANCommunication: def test(self): - self.client.MCPreqstatListenOnly(); + 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(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); + 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, standardid,debug): - comm.reset(); + def spitSetup(self,freq): + self.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\n" %self.client.peek8(0x2C); - print "\n\nATTEMPTING TRANSMISSION!!!" + + 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, duration = None, debug = False, packet = None): + #### split SID into different regs - SIDlow = (standardid[0] & 0x03) << 5; # get SID bits 2:0, rotate them to bits 7:5 + 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 - packet = [SIDhigh, SIDlow, 0x00,0x00, # pad out EID regs + if(packet == None): + + # if no packet, RTR for inputted arbID + # so packet to transmit is SID + padding out EID registers + RTR request (set bit 6, clear lower nibble of DLC register) + packet = [SIDhigh, SIDlow, 0x00,0x00,0x40] + + + #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 + # 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0xFF] + else: + + # if we do have a packet, packet is SID + padding out EID registers + DLC of 8 + packet + # + # TODO: allow for variable-length packets + # + 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] - - self.client.txpacket(packet); + packet[0],packet[1],packet[2],packet[3],packet[4],packet[5],packet[6],packet[7]] + - TXB0CTRL = self.client.peek8(0x30); + if(debug): + if self.client.MCPcanstat()>>5!=0: + print "Warning: currently in %s mode. NOT in normal mode! May not transmit.\n" %self.client.MCPcanstatstr(); + print "\nInitial 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\n" %self.client.peek8(0x2C); + print "\n\nATTEMPTING TRANSMISSION!!!" - print "Tx Errors: %3d" % self.client.peek8(0x1c); - print "Rx Errors: %3d" % self.client.peek8(0x1d); - print "EFLG register: %02x\n" % self.client.peek8(0x2d); - print "TXB0CTRL: %02x" %self.client.peek8(0x30); - print "CANINTF: %02x" %self.client.peek8(0x2C); + + print "Transmitting packet: " + for byte in packet: + print "%02x " %byte, + + self.client.txpacket(packet); + + if repeat: + print "\nNow looping on transmit. " + if duration!= None: + starttime = time.time(); + while((time.time()-starttime < duration)): + self.client.MCPrts(TXB0=True); + print "MSG printed" + else: + while(1): + self.client.MCPrts(TXB0=True); + print "messages injected" + # MORE DEBUGGING + if(debug): + checkcount = 0; + TXB0CTRL = self.client.peek8(0x30); + + 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); + + 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); + + def setRate(self,freq): + self.client.MCPsetrate(freq); @@ -411,8 +512,9 @@ 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); - + 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); + parser.add_argument('-r', '--repeat', action='store_true', help='-r with "spit" will continuously send the inputted packet. This will put the GoodTHOPTHER into an infinite loop.', default=False); + args = parser.parse_args(); freq = args.freq @@ -424,6 +526,7 @@ if __name__ == "__main__": debug = args.debug standardid = args.standardid faster=args.faster + repeat = args.repeat comm = GoodFETMCPCANCommunication(); @@ -529,7 +632,7 @@ 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, debug=debug) + comm.spitSingle(freq=freq, standardid=standardid,duration=duration, repeat=repeat, debug=debug)