USBServos Software not working?

[Boeing 747 Flyer]

Okay lads, hows about this: (ServoT.ssi)

// *****************************************************************************
// * Config_SIOC ver 3.7B1   -     By Manolo Vélez    -    www.opencockpits.com
// *****************************************************************************
// * FileName : ASIgauge.txt
// * Date : 7/3/2010



Var 0000, Value 0, name Intialization     // Set servo positions
{
  &Servo4 = 367   
}

Var 9000, name Servo4, Link USB_SERVOS, Output 1, PosL 367, PosC 637, PosR 907, Type 2     // ASI gauge

Var 9003, name IAS, Link FSUIPC_INOUT, Offset $02BC, Length 4     // IAS from SIm
{
  L0 = &IAS / 1.5
  &Servo4 = L0 + 213
  IF L0 < 50
  {
    &Servo4 = 367    
  }
  IF L0 > 350
  {
    &Servo4 = 907    
  }
}

And SIOC.ini:

[SIOC]
IOCP_port=8092
IOCP_timeout=4000
Minimized=Yes
toggle_delay=20
CONFIG_FILE=ServoT.ssi

[IOCARDS MODULE]
IOCard_disable=No
IOCard_LPT=No

USBSERVOS=1,77

[FSUIPC MODULE]
FSUipcdisable=No
FSUipcRefresh=50

[IOCP CLIENTS MODULES]
IOCPini_delay=3000
IOCPclient0_disable=Yes
IOCPclient0_host=localhost
IOCPclient0_port=8090
IOCPclient1_disable=Yes
IOCPclient1_host=localhost
IOCPclient1_port=8099

[SOUND MODULE]
Sound_disable=Yes
Volume=100

I know the SIOC.ini is wrong though.

[737NUT]

Hi Rob,
Thanks for your example. It will show Jack how to use Var 0.

Just a tip: in your script you are using (at several places) a Var definition linked to a FSUIPC_INOUT offset. However, in your program you only use the IN part (never the OUT part). It would be better to replace all these FSUIPC_INOUT's by FSUIPC_IN's. This will better express what you are doing and it will result in a simpler execution by SIOC, costing less cpu cycles).

best regards,
Nico

Thanks! I will make the changes as cycle time will become important when i bring all my scripts together.

[kiek]

Although semantically the same, this is better code:

Var 9003, name IAS, Link FSUIPC_IN, Offset $02BC, Length 4     // IAS from SIm
{
  L0 = &IAS / 1.5
  &Servo4 = L0 + 213
  IF L0 < 50
  {
    &Servo4 = 367    
  }
  ELSE
  {
    IF L0 > 350
    {
     &Servo4 = 907  
    }  
  }
}

FSUIPC_IN because you are only reading from the offset (not writing to the offset)

IF L0 < 50 there is no need to test whether it is also > 350 (because it is not) so you better use an IF ELSE statement to save cpu time


Nico

[deering]

Var 9003, name IAS, Link FSUIPC_IN, Offset $02BC, Length 4     // IAS from SIm
{
  L0 = &IAS / 1.5
  &Servo4 = L0 + 213
  IF L0 < 50
  {
    &Servo4 = 367    
  }
  ELSE
  {
    IF L0 > 350
    {
     &Servo4 = 907  
    }  
  }
}

I don't have a servo card, so I may not be understanding this well; but, I assume that the intention is to produce a result such that: 366 < &Servo4 < 908.
The above code doesn't do that. Consider: &IAS=120; L0=80; &Servo4 = 293.

Maybe:

Var 9003, name IAS, Link FSUIPC_IN, Offset $02BC, Length 4     // IAS from SIm
{
  L0 = &IAS / 1.5
  &Servo4 = L0 + 213
  IF &Servo4 < 367 
  {
    &Servo4 = 367    
  }
  ELSE
  {
    IF &Servo4 > 907
    {
     &Servo4 = 907  
    }  
  }
}

or

Var 9003, name IAS, Link FSUIPC_IN, Offset $02BC, Length 4     // IAS from SIm
{
  &Servo4 = &IAS / 1.5
  &Servo4 = LIMIT 367,907,213
}

I don't know why it's necessary to do this, though. The limits are already defined:

Var 9000, name Servo4, Link USB_SERVOS, Output 1, PosL 367, PosC 637, PosR 907

SIOC ought to impose them.

Jim

[kiek]

Hi Jim,

Var 9003, name IAS, Link FSUIPC_IN, Offset $02BC, Length 4     // IAS from SIm
{
  L0 = &IAS / 1.5
  &Servo4 = L0 + 213
  IF L0 < 50
  {
    &Servo4 = 367    
  }
  ELSE
  {
    IF L0 > 350
    {
     &Servo4 = 907  
    }  
  }
}

I had no intention to write correct code for his application. I was only showing some SIOC constructs.
Note: Your example code (above) is not right i'm afraid, because you already write a too low value (293) to &servo4 before you test the limits in the next statement....

Nico

[Boeing 747 Flyer]

Okay, I'll remove the limits then as they seem to be causing some questions to be raised. Hows about this (limits removed):

Var 0000, Value 0, name Intialization     // Set servo positions
{
  &Servo4 = 367   
}

Var 9000, name Servo4, Link USB_SERVOS, Output 1, PosL 367, PosC 637, PosR 907, Type 2     // ASI gauge

Var 9003, name IAS, Link FSUIPC_INOUT, Offset $02BC, Length 4     // IAS from SIm
{
  L0 = &IAS / 1.5
  &Servo4 = L0 + 213

Combined with this SIOC.ini:

[SIOC]
IOCP_port=8092
IOCP_timeout=4000
Minimized=Yes
toggle_delay=20
CONFIG_FILE=ServoT.ssi

[IOCARDS MODULE]
IOCard_disable=No
IOCard_LPT=No

USBSERVOS=1,77

[FSUIPC MODULE]
FSUipcdisable=No
FSUipcRefresh=50

[IOCP CLIENTS MODULES]
IOCPini_delay=3000
IOCPclient0_disable=Yes
IOCPclient0_host=localhost
IOCPclient0_port=8090
IOCPclient1_disable=Yes
IOCPclient1_host=localhost
IOCPclient1_port=8099

[SOUND MODULE]
Sound_disable=Yes
Volume=100

Will it let the ASI Servo work? If there are any problems, please highlight them (even if it's just that I've put a line or a space in the wrong position).

Thank you very much,

Jack

[kiek]

Hi Jack,
Like I wrote earlier in this thread, the FSUIPC definition for offset 0x0B2C reads:

IAS: Indicated Air Speed, as knots * 128

I do not see your algorithm taking care of that.... Should you not divide by 128 get IAS in knots first?
And why do you divide by 1.5? What's the reasoning behind that?

Nico

[Boeing 747 Flyer]

Hi Nico,

Yes I understand dividing by 128, it makes perfect sense. Not really sure why it's /1.5 I will change it now. Anything else I need to take care of? Is the SIOC.ini okay?

Also, should I change 213 to 205 as that's my "0" value, although my phyiscal ASI only starts at 50Knots.

[fordgt40]

Jack

The reason why it is 1.5 is that was the figure in the "sample" sioc text I gave you a while back. I also said in a previous post

" Yes, there is more code ammendment required - for example you will need to establish whether the multiplier 1.5 or indeed the + value of 213 is correct"

David

[Boeing 747 Flyer]

Thanks David, all is corrected. Interestingly, I actually noticed that the /1.5 was wrong after looking at the SDK manual, but forgot to correct!

So, before I finally boot up FSX and test, are there any errors in the following SIOC script:

// *****************************************************************************
// * Config_SIOC ver 3.7B1   -     By Manolo Vélez    -    www.opencockpits.com
// *****************************************************************************
// * FileName : ASIgauge.txt
// * Date : 7/3/2010



Var 0000, Value 0, name Intialization     // Set servo positions
{
  &Servo4 = 205  
}

Var 9000, name Servo4, Link USB_SERVOS, Output 1, PosL 205, PosC 468, PosR 730, Type 2     // ASI gauge

Var 9003, name IAS, Link FSUIPC_INOUT, Offset $02BC, Length 4     // IAS from SIm
{
  L0 = &IAS / 128
  &Servo4 = L0 + 213
  IF L0 < 50
  {
    &Servo4 = 205  
  }
  IF L0 > 350
  {
    &Servo4 = 730    
  }
}

And SIOC.ini:

[SIOC]
IOCP_port=8092
IOCP_timeout=4000
Minimized=Yes
toggle_delay=20
CONFIG_FILE=ServoT.ssi

[IOCARDS MODULE]
IOCard_disable=No
IOCard_LPT=No

USBSERVOS=1,77

[FSUIPC MODULE]
FSUipcdisable=No
FSUipcRefresh=50

[IOCP CLIENTS MODULES]
IOCPini_delay=3000
IOCPclient0_disable=Yes
IOCPclient0_host=localhost
IOCPclient0_port=8090
IOCPclient1_disable=Yes
IOCPclient1_host=localhost
IOCPclient1_port=8099

[SOUND MODULE]
Sound_disable=Yes
Volume=100

Any mistakes feel free to point 'em out!