X-Git-Url: http://git.rot13.org/?p=goodfet;a=blobdiff_plain;f=client%2FFordExperiments.py;h=d57db1c2e6d4c8316eddc43b858e10b2499ae279;hp=c3abf625f5c3690cfff2d099419559c8b4e64714;hb=19a89220d15e203a109ff2509407e8565e98ac40;hpb=d55e72f78b2d65c275d7f9355b6815ba80f71759 diff --git a/client/FordExperiments.py b/client/FordExperiments.py index c3abf62..d57db1c 100644 --- a/client/FordExperiments.py +++ b/client/FordExperiments.py @@ -11,16 +11,18 @@ from intelhex import IntelHex; import Queue import math +tT = time class FordExperiments(GoodFETMCPCANCommunication): - def init(self): - super(FordExperimetns,self).__init__(self) #initialize chip + def __init__(self, dataLocation): + GoodFETMCPCANCommunication.__init__(self, dataLocation) + #super(FordExperiments,self).__init__(self) #initialize chip self.freq = 500; def mimic1056(self,packetData,runTime): #setup chip self.client.serInit() - self.spitSetup(500) + self.spitSetup(self.freq) #FIGURE out how to clear buffers self.addFilter([1056, 1056, 1056, 1056,1056, 1056], verbose=False) packet1 = self.client.rxpacket(); @@ -113,7 +115,7 @@ class FordExperiments(GoodFETMCPCANCommunication): while( (time.time()-recieveTime) < runTime): #care about db3 or packet[8] that we want to count at the rate that it is dT = time.time()-tpast - packetValue += 1 + packetValue += 10 pV = packetValue%255 #temp = ((packetValue+1))%2 #if( temp == 1): @@ -128,10 +130,144 @@ class FordExperiments(GoodFETMCPCANCommunication): tpast = time.time() #update our transmit time on the one before print packetCount; + def getBackground(self,sId): + packet1 = self.client.rxpacket(); + if(packet1 != None): + packetParsed = self.client.packet2parsed(packet1); + #keep sniffing till we read a packet + while( packet1 == None or packetParsed.get('sID') != sId ): + packet1 = self.client.rxpacket() + if(packet1 != None): + packetParsed = self.client.packet2parsed(packet1) + + #recieveTime = time.time() + return packetParsed + + def cycle4packets1279(self): + self.client.serInit() + self.spitSetup(500) + # filter on 1279 + self.addFilter([1279, 1279, 1279, 1279, 1279, 1279], verbose = False) + packetParsed = self.getBackground(1279) + packet = [] + if (packetParsed[db0] == 16): + # if it's the first of the four packets, replace the value in db7 with 83 + packetParsed[db7] = 83 + # transmit new packet + self.client.txpacket(packetParsed) + else: + # otherwise, leave it alone + # transmit same pakcet we read in + self.client.txpacket(packetParsed) + # print the packet we are transmitting + print packetParsed + + + def oscillateTemperature(self,time): + #setup chip + self.client.serInit() + self.spitSetup(500) + #FIGURE out how to clear buffers + self.addFilter([1056, 1056, 1056, 1056,1056, 1056], verbose=False) + packetParsed = self.getBackground(1056) + packet = [] + #set data packet to match what was sniffed or at least what was input + for i in range(0,8): + idx = "db%d"%i + packet.append(ord(packetParsed.get(idx))) + packetValue = 0 + packet[1] = packetValue; + + print packet + #### split SID into different regs + SIDlow = (1056 & 0x07) << 5; # get SID bits 2:0, rotate them to bits 7:5 + SIDhigh = (1056 >> 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 + packet[0],packet[1],packet[2],packet[3],packet[4],packet[5],packet[6],packet[7]] + packetCount = 1; + self.client.txpacket(packet); + startTime = tT.time() + while( (tT.time()-startTime) < runTime): + dt = tT.time()-startTime + inputValue = ((2.0*math.pi)/20.0)*dt + value = 30*math.sin(inputValue)+130 + print value + #packet[5] = int(value) + if( value > 130 ): + packet[5] = 160 + else: + packet[5] = 100 + #packet[6] = 1 + print packet + self.client.txpacket(packet) + packetCount += 1 + #tpast = time.time() #update our transmit time on the one before + print packetCount; + + + def fakeVIN(self): + #reset eveything on the chip + self.client.serInit() + self.reset() + duration = 20; #seconds + + listenID = 2015 + listenPacket = [2, 9, 6, 153, 153, 153, 153, 153] + responseID = 2024 + #actual response by the car + #r1 = [34, 88, 0, 0, 0, 0, 0, 0] + #r2 = [33, 75, 50, 78, 51, 46, 72, 69 ] + #r3 = [16, 19, 73, 4, 1, 70, 65, 66] + + r1 = [34, 88, 0, 0, 0, 0, 0, 0] + r2 = [33, 75, 50, 78, 51, 46, 72, 69 ] + r3 = [16, 19, 73, 160, 159, 70, 65, 66] + + #format + SIDlow = (responseID & 0x07) << 5; # get SID bits 2:0, rotate them to bits 7:5 + SIDhigh = (responseID >> 3) & 0xFF; # get SID bits 10:3, rotate them to bits 7:0 + packet1 = [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 + r1[0],r1[1],r1[2],r1[3],r1[4],r1[5],r1[6],r1[7]] + packet2 = [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 + r2[0],r2[1],r2[2],r2[3],r2[4],r2[5],r2[6],r2[7]] + packet3 = [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 + r3[0],r3[1],r3[2],r3[3],r3[4],r3[5],r3[6],r3[7]] + + self.multiPacketSpit(packet0 = r1, packet1 = r2, packet2 = r3, packet0rts = True, packet1rts = True, packet2rts = True) + + #filter for the correct packet + self.filterForPacket(listenID, listenPacket[0],listenPacket[1], verbose = True) + self.client.rxpacket() + self.client.rxpacket() # flush buffers if there is anything + startTime = tT.time() + while( (tT.time() -startTime) < duration): + packet = self.client.rxpacket() + if( packet != None): + sid = ord(packet[0])<<3 | ord(packet[1])>>5 + if( sid == listenID): + byte3 = ord(packet[6]) + if( byte3 == listenPacket[3]): + print "SendingPackets!" + #send packets + self.multpackSpit(packet0rts=True,packet1rts=True,packet2rts=True) + + + + if __name__ == "__main__": - fe = FordExperiments(); - packetData = {} - packetData['db4'] = 4; - runTime = 10; + fe = FordExperiments("asdsf"); + #packetData = {} + #packetData['db4'] = 4; + #runTime = 100; #fe.mimic1056(packetData, runTime) - fe.cycledb1_1056(runTime) + #fe.cycledb1_1056(runTime) + #fe.oscillateTemperature(runTime) + fe.fakeVIN()