ardupilot/libraries/AP_Scripting/examples/CAN_read.lua

38 lines
1015 B
Lua

-- This script is an example of reading from the CAN bus
-- Load CAN driver1. The first will attach to a protocol of 10, the 2nd to a protocol of 12
-- this allows the script to distinguish packets on two CAN interfaces
local driver1 = CAN:get_device(5)
local driver2 = CAN:get_device2(5)
if not driver1 and not driver2 then
gcs:send_text(0,"No scripting CAN interfaces found")
return
end
function show_frame(dnum, frame)
gcs:send_text(0,string.format("CAN[%u] msg from " .. tostring(frame:id()) .. ": %i, %i, %i, %i, %i, %i, %i, %i", dnum, frame:data(0), frame:data(1), frame:data(2), frame:data(3), frame:data(4), frame:data(5), frame:data(6), frame:data(7)))
end
function update()
-- see if we got any frames
if driver1 then
frame = driver1:read_frame()
if frame then
show_frame(1, frame)
end
end
if driver2 then
frame = driver2:read_frame()
if frame then
show_frame(2, frame)
end
end
return update, 10
end
return update()