BFF CL Software - Short User Guide


 

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2. Force Feedback Configuration Settings

The force feel settings are stored in .cfg configuration files in the CL software working folder. The settings can be altered manually using a text editor (eg Notepad), however it is easier to use the BFF CL Settings application.

A number of configuration files are provided in the software zip archive and can be used as a start point for your own set up. Chose the sample configuration of the aircraft type closest to your own.

Settings for each control axis are displayed separately in a tabbed layout.

Move the mouse over any input field in the Elevator settings area to see a pop-up help window for that setting.

To save the settings to a .cfg configuration file hit Save. Note that changes made to individual settings will not be saved until the Save button is used.

The Make_Active button will save the settings to a specified .cfg file AND instruct the BFF Control Loader to re-load those settings if it is active.

The Close button will close the application without saving.

Note that the COM port and baud for the force demand output is set in the Elevator settings area, as are the Pilot and Co-Pilot joystick numbers.

Background Process Settings - Pry_S.cfg

Some advanced settings are made in the Pry_S.cfg file which is read by the CL software background process when it runs. Normally you will not need to alter these settings however there are some that may need to be adjusted when you first setup your system.

With v1.0+ of the BFF_CL_Setup application use button Bck_Grnd_Set to display and set the Pry_S.cfg file settings - this is the recommended way to set the background process settings.

Note, not all settings in the file are active when the software is in BLDRV-12/24 card mode.

Line 1: force loop delay time in ms - set this to give a "Force Loop" refresh rate of approx 50Hz. The refresh rates are displayed on the main CL window. Lowering the delay will increase the refresh rate.

Lines 17, 18 & 19: disengage trigger speeds. The software will detect over-speeds on the control movements and will disengage the drive if the set speeds are exceeded. These values can be increased to reduce the trigger sensitivity.

Line 43: Joystick card number for trim pot inputs - only required if the pots are not on the main pilot joystick card. Please note the correct axis letter numbers to be used for the trim pots (see also the system wiring diagram and notes). NEW for v1.20 - if Line 43 is set = -1 then the joystick trim buttons are overridden by keyboard keys with the same numbers. This is useful when setting up the system and joystick pots/buttons haven't yet been set up.

Lines 44 to 45: For Auto-Pilot Following mode. Position error triggers for AP Disengage. The AP will disengage if the controls are displaced when the system is in AP following mode. These values set the sensitivity of the disengage trigger. More sensitive (smaller) values will only work if the Zero button has first been used to determine the true zero position of the controls. Set values above 127 to completely disable the disengage triggers.

There are several other advanced settings available through the Pry_S.cfg file. The best way to set these is using the setup application - Bck_Grnd_Set button.

NOTE Changes made to the background process settings will require the CL software to be re-started to activate them.

Pop-up tool tips are available for the parameters if you use the Bck_Grnd_Set button the setup application - just hover the mouse over an input field and the tip will appear....

The remaining PRY_S.cfg settings are as described in the file and/or in the BFF CL Setup Application  do not alter these unless you are sure you know what you are doing. Please contact me if you require more information.

See Section 4. Force Tuning for details on the force tuning procedures.

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