Results 1 to 3 of 3
  1. #1
    New Member
    Join Date
    Apr 2012
    Location
    Manchester
    Posts
    2
    Contribute If you enjoy reading the
    content here, click the below
    image to support MyCockpit site.
    Click Here To Contribute To Our Site

    Interfacing aeroSystem737 avionics software with homemade 737MCP using SOIC

    Hi, this is myfirst post, hope its in the correct area!
    I have usedopencockpit boards to build my own MCP. I have this working with the standardFSUIPC offsets. I now want to start using my MCP with aeroSystem737 avionics software. The course,IAS, and Heading all work as they use the standard offsets. The MCP altitudeand VS use Aerosoft offsets. I have limited experience with SOIC and needhelp/examples of how to implement the Aerosoft requirements into SOIC.

    Regards, Glynn

    From Aerosoftwebpage http://www.aerosoft.com.au/aerosoft_.../hardware.html




    SENDING A COMMAND TO AEROSYSTEMS
    Sending a command is very simple. A command is sentusing the addresses below.

    Address description length
    7370 command 1 byte
    7371 value small integer (2 bytes)

    Before you send a command you must first make surethat address 7370 hex has a value of 0. if it is 0 you can write a command tothat address, with an optional value to address 7371 hex. When aeroSystems hasfinished processing the command, aeroSystems will set 7370 hex back to 0,informing you that itís ready to accept another command.

    Hereís an easy example:

    If value at address 7370 hex = 0 then
    begin
    FSUIPC begin request
    write a command to address 7370 hex
    write an optional value as a small integer(-32767 to +32767) to address 7371 hex
    FSUIPC send request
    end

    So remember, if 7370 is not 0 you cannot send acommand until aeroSystems resets it back to 0.


    Description

    MCP
    MCP altitude divided by 100. eg. to set MCP to37500 write 375
    Vertical speed divided by 100

    Command
    (decimal)

    1
    2

    10
    11
    12
    13
    14
    15
    16
    17
    18
    19
    20
    21
    22
    23
    24
    25
    26
    Value
    (decimal)

    0 to 500
    -79 to 60

    none
    none
    none
    none
    none
    none
    none
    none
    none
    none
    none
    none
    none
    none
    none
    none
    none
    Description

    MCP
    MCP altitude divided by 100. eg. to set MCP to 37500 write 375
    Vertical speed divided by 100

    flight director toggle (read status from FSX to determine initial state)
    AT ARM toggle (read status from FSX to determine initial state)
    Push N1
    Push SPEED
    Push VNAV
    Push LVL CHG
    Push HDL SEL
    Push LNAV
    Push VOR/LOC
    Push APP
    Push ALT HOLD
    Push V/S
    Push CMD A
    Push IAS/MACH change over
    Push TOGA takeoff mode 1 - pilot pitches aircraft manually for takeoff
    Push TOGA takeoff mode 2 - autopilot pitches nose-up at Vr and takes off by itself (auto takeoff)
    Push CMD B
    Attached Images Attached Images

  2. #2
    25+ Posting Member brian95's Avatar
    Join Date
    Apr 2010
    Location
    Melbourne, Australia
    Posts
    34
    Contribute If you enjoy reading the
    content here, click the below
    image to support MyCockpit site.
    Click Here To Contribute To Our Site

    Re: Interfacing aeroSystem737 avionics software with homemade 737MCP using SOIC

    I too have this problem as I've only been using standard FSUIPC offsets.
    I emailed the developer who replied and said that you need to write your own software to access the two offsets listed on the web page, or otherwise it would be easier in the long run to buy pre-built electronics.
    Sorry I can't be of more help, but seeing as you've already built your MCP you're already ahead of me.
    Regards,
    Brian

  3. #3
    500+ This must be a daytime job
    Join Date
    Jul 2013
    Posts
    948
    Contribute If you enjoy reading the
    content here, click the below
    image to support MyCockpit site.
    Click Here To Contribute To Our Site

    Re: Interfacing aeroSystem737 avionics software with homemade 737MCP using SOIC

    Glynn

    This link shows you how to read and write to offsets using SIOC

    http://www.lekseecon.nl/howto.html#writeFSUIPC

    If you are using non standard FSUIPC offsets, then you may need to define them within FSUIPC - its in the docs. Not tried using non standard ones yet, so why not try just referencing the offset in SIOC and see if it works

    David