Radio control based on PPM input

Some STM32 boards have the option to configure RADIO_CONTROL_PPM_PIN. See the board makefile for configure options of the pins. If they set the PPM_CONFIG makefile variable, add it to the target. The PPM_CONFIG define is then used in the board.h file to set the configuration.

Example for airframe file

Add to your firmware section: This example contains all possible configuration options, not all of them are mandatory!

 <module name="radio_control_ppm">
   <configure name="RADIO_CONTROL_LED" value="none|num" />
   <configure name="PPM_CONFIG" value="num" />
 </module>

Module configuration options

Configure Options

name: RADIO_CONTROL_LED value: none|num
Description: LED number or 'none' to disable
name: PPM_CONFIG value: num
Description: Select PPM config, as some boards can used different mapping for the ppm input pin

Files

Header Files

The following headers are automatically included in modules.h

ppm.h

Source Files

subsystems/radio_control.c
subsystems/radio_control/ppm.c
/subsystems/radio_control/ppm_arch.c
subsystems/radio_control.c
subsystems/radio_control/ppm.c
/subsystems/radio_control/ppm_arch.c

Raw radio_control_ppm.xml file:

<!DOCTYPE module SYSTEM "module.dtd">
<module name="radio_control_ppm" dir="radio_control">
  <doc>
    <description>
      Radio control based on PPM input
      Some STM32 boards have the option to configure RADIO_CONTROL_PPM_PIN.
      See the board makefile for configure options of the pins.
      If they set the PPM_CONFIG makefile variable, add it to the target.
      The PPM_CONFIG define is then used in the _board_.h file to set the configuration.
    </description>
    <configure name="RADIO_CONTROL_LED" value="none|num" description="LED number or 'none' to disable"/>
    <configure name="PPM_CONFIG" value="num" description="Select PPM config, as some boards can used different mapping for the ppm input pin"/>
  </doc>
  <header>
    <file name="ppm.h" dir="subsystems/radio_control"/>
  </header>
  <makefile target="ap|fbw|sim|nps|hitl">
    <configure name="RADIO_CONTROL_LED" default="none"/>
    <define name="RADIO_CONTROL_LED" value="$(RADIO_CONTROL_LED)" cond="ifneq ($(RADIO_CONTROL_LED),none)"/>
    <define name="RADIO_CONTROL_TYPE_H" value="subsystems/radio_control/ppm.h" type="string"/>
    <define name="PPM_CONFIG" value="$(PPM_CONFIG)" cond="ifdef PPM_CONFIG"/>
  </makefile>
  <makefile target="fbw|sim|nps|hitl">
    <define name="RADIO_CONTROL"/>
    <define name="RADIO_CONTROL_TYPE_PPM"/>
    <file name="radio_control.c" dir="subsystems"/>
    <file name="ppm.c" dir="subsystems/radio_control"/>
    <file name="ppm_arch.c" dir="$(SRC_ARCH)/subsystems/radio_control"/>
  </makefile>
  <makefile target="ap" cond="ifeq (,$(findstring $(SEPARATE_FBW),1 TRUE))">
    <define name="RADIO_CONTROL"/>
    <define name="RADIO_CONTROL_TYPE_PPM"/>
    <file name="radio_control.c" dir="subsystems"/>
    <file name="ppm.c" dir="subsystems/radio_control"/>
    <file name="ppm_arch.c" dir="$(SRC_ARCH)/subsystems/radio_control"/>
  </makefile>
</module>