lua MCP (CPFLIGHT) and LUA

[michel78320]

Hello,

I am a registered user of FSUIPC and WIDEFS for 11 years, and I thank Pete very much for this extremely complete software.
The operation of WideFS is still operational with P3D-V4. Bravo.
I bought an FSUIPC5 key as soon as it was available, and everything works perfectly with P3D-V4.

Now, here is my problem :
 
I own an MCF + EFIS from CPFlight. It worked perfectly with the supplied driver, as well as the (Expensive) software from FS-Labs.
Unfortunately , the FS-Labs software is a 32 bits version, and there is no planned version for compatibility with P3D-V4.
So I looked for another solution, and by reading the important documentation provided with FSUIPC, I discovered that there was everything necessary to direct control for my  hardware.
So I started using LUA plug-ins, helped by the many examples provided.  Great job, Pete ... Very well explained and very complete.

Unfortunately, I am not able to make a simple com.write () ...
I run P3D-V4 with the following LUA script, associated with a keyboard key ("A") :

MCP-747.lua :

-----------------------------------------------
-- Commande du MCP-747 de CP-Flight avec LUA
-----------------------------------------------

speed = 38400  -- Vitesse du port USB 
handshake = 0  -- No handshake

MCP = com.open("com6", speed, handshake)

if MCP == 0 then
   ipc.log("Pas trouvé de MCP-747 de CP-Flight")
   ipc.exit()
end

ipc.log("Port USB ouvert")

n = com.write (MCP, "Q001")

ipc.log(n)

When I execute the script ("A" key from the keyboard), the LLUA log (MCP747.log)  gives this:

********* LUA: "MCP-747" Log [from FSUIPC version 5.101] *********
   256825 System time = 21/06/2017 11:42:37, Simulator time = 14:44:36 (12:44Z)
   256825 LUA: beginning "M:\P3D-V4-0\Modules\MCP-747.lua"
   256825 LUA: M:\P3D-V4-0\Modules\MCP-747.lua:5
   256825 LUA: Global: ipcPARAM = 0
   256825 LUA: M:\P3D-V4-0\Modules\MCP-747.lua:6
   256825 LUA: Global: speed = 38400
   256825 LUA: M:\P3D-V4-0\Modules\MCP-747.lua:8
   256825 LUA: Global: handshake = 0
   256903 LUA: M:\P3D-V4-0\Modules\MCP-747.lua:10
   256903 LUA: Global: MCP = 5029216692
   256903 LUA: M:\P3D-V4-0\Modules\MCP-747.lua:15
   256903 LUA: Port USB ouvert
   256903 LUA: M:\P3D-V4-0\Modules\MCP-747.lua:17
   256903 LUA: M:\P3D-V4-0\Modules\MCP-747.lua:19
   256919 LUA: Global: n = 0
   256919 LUA: 0
   256919 >>> Thread forced exit (ipc.exit or os.exit) <<<
   256919 System time = 21/06/2017 11:42:37, Simulator time = 14:44:36 (12:44Z)
********* LUA execution terminated: Log Closed *********

The trace of the serial port (COM6) by the "Advanced Serial Port Monitor" software gives this :

<20170621114237.550 SYS>
COM est ouvert
<20170621114237.550 SYS>
Taille de queue entrée/sortie 1024/1024
<20170621114237.550 SYS>
Unable to add string #8
<20170621114237.553 SYS>
Débit en bauds 38400
<20170621114237.556 SYS>
RTS activé
<20170621114237.559 SYS>
DTR activé
<20170621114237.562 SYS>
Bits de données=8, Bits d'arrêt=1, Parité=None
<20170621114237.562 SYS>
Configurer charactères : Eof=0x00, Error=0x00, Break=0x00, Event=0x00, Xon=0x11, Xoff=0x13
<20170621114237.565 SYS>
Handflow : ControlHandShake=(DTR_CONTROL), FlowReplace=(TRANSMIT_TOGGLE, RTS_CONTROL), XonLimit=896, 

XoffLimit=512
<20170621114237.565 SYS>
Purger le port série : RXABORT, RXCLEAR
<20170621114237.983 SYS>
Purger le port série : RXABORT, RXCLEAR
<20170621114238.101 SYS>
COM est fermé

There is nothing writen on the Com6 !

Using the MCP test software, with the same "Advanced Serial Port Monitor" :

<20170621114831.512 SYS>
COM est ouvert
<20170621114831.515 SYS>
Taille de queue entrée/sortie 1024/512
<20170621114831.515 SYS>
Purger le port série : RXABORT, RXCLEAR, TXABORT, TXCLEAR
<20170621114831.515 SYS>
Unable to add string #8
<20170621114831.518 SYS>
Débit en bauds 38400
<20170621114831.524 SYS>
RTS désactivé
<20170621114831.530 SYS>
DTR activé
<20170621114831.533 SYS>
Bits de données=8, Bits d'arrêt=1, Parité=None
<20170621114831.533 SYS>
Configurer charactères : Eof=0x1A, Error=0x00, Break=0x00, Event=0x00, Xon=0x11, Xoff=0x13
<20170621114831.539 SYS>
Handflow : ControlHandShake=(DTR_CONTROL), FlowReplace=(), XonLimit=256, XoffLimit=256
<20170621114831.540 TX>
Q001<NUL>Q001<NUL>
<20170621114831.612 RX>
KCPF<NUL>CPMCP747_100<NUL>CHIAVE0310013<NUL>MOD485EFI1<NUL>K037<NUL>K041<NUL>K017<NUL>K019<NUL>V06 

359<NUL>S003<NUL>M001<NUL>K072<NUL>K075<NUL>V0900<NUL>
<20170621114844.218 RX>
K025<NUL>
<20170621114844.218 TX>
L0125
<20170621114845.089 RX>
K024<NUL>
<20170621114845.089 TX>
L0124
<20170621114846.026 RX>
K026<NUL>
<20170621114846.027 TX>
L0126

I do not understand where I was wrong !
Can anyone help me ?

PS : I am from Paris (France) so, please, excuse my bad English ...

 

[Pete Dowson]

FSUIPC version 5.102 fixed some problems in COM, VRI and HID functions, related to handles in 64-bit more being 64-bit and Lua numbers all being floating point, with less than 64-bit numerical capacity.

Please always look for updates first when you have a problem. Solutions often arrive beforehand.

5.102 replaced 5.101 on the 12th, 9 days ago! And further improvements and fixes (including one for event.com) were included in the interim update 5.102a, released today in the Download Links subforum.

Pete

 

[michel78320]

Thank you for this quick response.
I apologize, I would of course have to start by verifying that a new version was not released.

I just installed the new version.
Actually com.write works. All is OK !
I can now write a Lua script to drive my MCP.

Your product is just great. Thank you very much.