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| ==Status== | | ==Status== |
| Verified
| | Use the CAN bus preset for the Link G4 |
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| <pre>
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| --This example configured for Link G4+ ECU
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| --how frequently we poll for CAN messages
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| tickRate = 30
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| --the CAN baud rate
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| CAN_baud = 1000000
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| --CAN channel to listen on. 0=first CAN channel, 1=second
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| CAN_chan = 0
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| --1 for Big Endian (MSB) mode; 0 for Little Endian mode (LSB)
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| be_mode = 1
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| --add your virtual channels here
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| --params: <channel name>,<sample rate>, <logging precision>, <min value>, <max value>, <units label>
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| rpmId = addChannel("RPM", 10, 0, 0, 10000)
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| tempId = addChannel("EngineTemp", 1, 0, -50, 205, "C")
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| iatId = addChannel("IAT", 10, 0, -20, 205, "C")
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| oilTempId = addChannel("OilTemp", 1, 0, -20, 205, "F")
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| tpsId = addChannel("TPS", 10, 0, 0, 100, "%")
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| ignAdvId = addChannel("IgnTiming", 10, 0, -100, 100, "Deg")
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| wheelSpdId = addChannel("WheelSpeed", 10, 0, 0, 300, "kph")
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| oilPressId = addChannel("OilPress", 10, 0, 0, 1000, "kPa")
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| fuelPressId = addChannel("FuelPress", 10, 0, 0, 1000, "kPa")
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| lambda1 = addChannel("Lambda1", 10, 3, 0, 3, "")
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| lambda2 = addChannel("Lambda2", 10, 3, 0, 3, "")
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| steerId = addChannel("Steering", 10, 0, -360, 360)
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| baroId = addChannel("Baro", 1, 0, 0, 200, "kPa")
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| gearId = addChannel("Gear", 5, 0, 0, 6, "")
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| knockId = addChannel("Knock", 10, 0, 0, 1000, "")
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| ----------------------------------------
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| --customize here for CAN channel mapping
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| --format is:
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| --[CAN Id] = function(data) map_chan(<chan_id>, data, <CAN offset>, <CAN length>, <multiplier>,
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| -- <adder>, [filter])
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| ----------------------------------------
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| CAN_map = {
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| [1200] = function(data) map_chan(rpmId, data, 0, 2, 1, 0)
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| map_chan(tempId, data, 4, 1, 1, -50)
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| map_chan(iatId, data, 5, 1, 1, -50)
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| map_chan(oilTempId, data, 7, 1, 1, -50) end,
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| [1201] = function(data) map_chan(tpsId, data, 0, 2, 0.1, 0)
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| map_chan(ignAdvId, data, 2, 2, 0.1, -100)
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| map_chan(wheelSpdId, data, 4, 1, 0.1, 0)
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| map_chan(oilPressId, data, 5, 1, 0.1, 0)
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| map_chan(fuelPressId, data, 6, 1, 1, 0) end,
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| [1202] = function(data) map_chan(lambda1, data, 0, 2, 0.001, 0)
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| map_chan(lambda2, data, 2, 2, 0.001, 0)
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| map_chan(steerId, data, 4, 2, 0.1, -3000)
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| map_chan(baroId, data, 6, 2, 0.1, 0) end,
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| [1203] = function(data) map_chan(gearId, data, 0, 1, 1, 0)
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| map_chan(knockId, data, 6, 2, 5, 0) end
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| }
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| function onTick()
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| processCAN(CAN_chan)
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| end
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| --===========do not edit below===========
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| function processCAN(chan)
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| repeat
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| local id, e, data = rxCAN(chan)
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| if id ~= nil then
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| local map = CAN_map[id]
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| if map ~= nil then
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| map(data)
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| end
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| end
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| until id == nil
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| end
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| --Map CAN channel, little endian format
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| function map_chan_le(cid, data, offset, len, mult, add, filter)
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| offset = offset + 1
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| local value = 0
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| local shift = 1
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| while len > 0 do
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| value = value + (data[offset] * shift)
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| shift = shift * 256
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| offset = offset + 1
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| len = len - 1
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| end
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| local cv = value * mult + add
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| if filter ~= nil then cv = filter(cv) end
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| setChannel(cid, cv)
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| end
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| --Map CAN channel, big endian format
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| function map_chan_be(cid, data, offset, len, mult, add, filter)
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| offset = offset + 1
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| local value = 0
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| while len > 0 do
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| value = (value * 256) + data[offset]
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| offset = offset + 1
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| len = len - 1
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| end
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| local cv = value * mult + add
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| if filter ~= nil then cv = filter(cv) end
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| setChannel(cid, cv)
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| end
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| map_chan = (be_mode == 1) and map_chan_be or map_chan_le
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| initCAN(CAN_chan, CAN_baud)
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| setTickRate(tickRate)
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| </pre>
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