Non axis Open Cockpit card

[domdom]

Hi.

I've home made tiller and I've one free analogic slot on USB Servo card. Does method exist in order that FSUIPC recognizes this input like an axis.

Many thanks.

Domdom

[Pete Dowson]

I've home made tiller and I've one free analogic slot on USB Servo card. Does method exist in order that FSUIPC recognizes this input like an axis.

How is this input occurring? Do you have a driver for this card? If so does it emulate a joystick, in which case it should show up as an axis in any case, or does it have an FSUIPC interface and send the data to an offset?

If there's no driver, and you have to resort to reading the USB data directly, as a HID device ("Human Interface Device"), then it can be done but you'd have to resort to some plug-in programming in Lua, using the Lua com library hid functions.

Regards

Pete

[domdom]

Many thanks Pete.

It's an HID device then I will try the second method asap.

Regards.

Domdom.

[Pete Dowson]

It's an HID device then I will try the second method asap.

Okay. I don't know if it will help, and please don't let it put you off, but here's a Lua plug-in I did for a Cockpitsonic 737 overhead Electric Metering Panel (EMP). It's just a test program, displaying switch changes on a Lua window and displaying test patterms on the metering display. Sorry about the lack of comments (I tend to find code desribes itself better than my inane comments would), but at least it does use all the things you might need -- opening the device, reading, interpreting and writing. You may also find the HidScanner program useful -- in the Lua thread within the Download Links subforum.

dev, rd, wrf, wr, init = com.openhid("Cockpitsonic", "EMP", 0)

if dev == 0 then
   ipc.log("Could not open HID")
   ipc.exit()
end

displaymax = 20

str2nums = string.char(0xff,0x02,0xd7,0x30,0xd0,0x45,0xc8,0x08,0xd3,0x00,0xc0,
                                                0x7f,0x82,0x57,0xb0,0x50,0xc5,0x48,0x88,0x53,0x80,0x40,
                                                0xff,0x02,0xd7,0x30,0xd0,0x45,0xc8,0x08,0xd3,0x00,0xc0)
str3nums = string.char(0xfe,0x11,0xba,0x85,0x82,0x2b,0x42,0x41,0x9a,0x01,0x02,
                                                0xff,0x10,0xbb,0x84,0x83,0x2a,0x43,0x40,0x9b,0x00,0x03,
                                                0xfe,0x11,0xba,0x85,0x82,0x2b,0x42,0x41,0x9a,0x01,0x02)

-- clear down the display
ipc.lineDisplay("", 0)

ipc.log("rd = " .. rd .. " wrf = " .. wrf .. " wr = " .. wr)

com.write(dev, string.char(1,0), 2)
com.write(dev, string.char(2,0xff,0xff,0xff,0xff,0xff,0xff), wr)
com.write(dev, string.char(3,0xff,0xff,0xff,0xff,0xff,0xff), wr)
n2 = 1
n3 = 2

brite = 240
doinit = init and (string.byte(init,1) ~= 0)

if doinit then
    prev1 = 255 - string.byte(init,2)
    prev2 = 255 - string.byte(init,3)
    prev3 = 255 - string.byte(init,4)
else
    prev1 = 0xff
    prev2 = 0xff
    prev3 = 0xff
end

while 1 do
        ipc.sleep(500)

        while doinit or (com.test(dev) ~= 0) do
           if doinit then
               str = init
               doinit = false
           else
               str = com.read(dev,rd,rd)
           end

           -- decode
           val0 = string.byte(str,1)
           if (val0 == 1) then
               val1 = string.byte(str,2)
               val1ch = logic.Xor(val1, prev1)
               prev1 = val1
               if val1ch ~= 0 then
                   if logic.And(val1ch, 1) ~= 0 then
                       if logic.And(val1, 1) ~= 0 then
                         ipc.lineDisplay("Battery Master On", -displaymax)
                     else
                           ipc.lineDisplay("Battery Master Off", -displaymax)
                     end
                   end
                   if logic.And(val1ch, 2) ~= 0 then
                       if logic.And(val1, 2) ~= 0 then
                         ipc.lineDisplay("Cab/Util On", -displaymax)
                     else
                           ipc.lineDisplay("Cab/Util Off", -displaymax)
                     end
                   end
                   if logic.And(val1ch, 8) ~= 0 then
                       if logic.And(val1, 8) ~= 0 then
                         ipc.lineDisplay("Maint released", -displaymax)
                     else
                           ipc.lineDisplay("Maint pressed", -displaymax)
                     end
                   end
               end

               val2 = string.byte(str,3)
               val2ch = logic.Xor(val2, prev2)
               prev2 = val2
               if val2ch ~= 0 then
                  if logic.And(val2, 1) == 0 then
                       ipc.lineDisplay("AC Select = Stby Pwr", -displaymax)
                   elseif logic.And(val2, 2) == 0 then
                       ipc.lineDisplay("AC Select = Grd Pwr", -displaymax)
                   elseif logic.And(val2, 4) == 0 then
                       ipc.lineDisplay("AC Select = Gen1", -displaymax)
                   elseif logic.And(val2, 8) == 0 then
                       ipc.lineDisplay("AC Select = APU Gen", -displaymax)
                   elseif logic.And(val2, 16) == 0 then
                       ipc.lineDisplay("AC Select = ???", -displaymax)
                   elseif logic.And(val2, 32) == 0 then
                       ipc.lineDisplay("AC Select = Test", -displaymax)
                   elseif logic.And(val2, 64) == 0 then
                       ipc.lineDisplay("AC Select = Inv", -displaymax)
                   elseif logic.And(val2, 128) == 0 then
                       ipc.lineDisplay("AC Select = Gen2", -displaymax)
                   end
               end

               val3 = string.byte(str,4)
               val3ch = logic.Xor(val3, prev3)
               prev3 = val3
               if val3ch ~= 0 then
                   if logic.And(val3, 1) == 0 then
                       ipc.lineDisplay("DC Select = Stby Pwr", -displaymax)
                   elseif logic.And(val3, 2) == 0 then
                       ipc.lineDisplay("DC Select = Bat Bus", -displaymax)
                   elseif logic.And(val3, 4) == 0 then
                       ipc.lineDisplay("DC Select = Bat", -displaymax)
                   elseif logic.And(val3, 8) == 0 then
                       ipc.lineDisplay("DC Select = Aux Bat", -displaymax)
                   elseif logic.And(val3, 16) == 0 then
                       ipc.lineDisplay("DC Select = Test", -displaymax)
                   elseif logic.And(val3, 32) == 0 then
                       ipc.lineDisplay("DC Select = TR3", -displaymax)
                   elseif logic.And(val3, 64) == 0 then
                       ipc.lineDisplay("DC Select = TR2", -displaymax)
                   elseif logic.And(val3, 128) == 0 then
                       ipc.lineDisplay("DC Select = TR1", -displaymax)
                   end
               end
           end
      end

      com.write(dev, string.char(1,brite), wr)
      brite = brite - 16
        if brite < 0 then
            brite = 240
        end

        com.write(dev, string.char(3) .. string.sub(str2nums, n2, n2+5), wr)
         n2 = n2 + 1
        if n2 > 22 then
            n2 = 1
        end

        com.write(dev, string.char(2) .. string.sub(str3nums, n3, n3+5), wr)
        n3 = n3 + 1
        if n3 > 22 then
            n3 = 1
        end

end
[/CODE]

Good luck!

Pete