Example for airframe file

This example contains all possible configuration options, not all of them are mandatory!

 <modules>
   <load name="osd_max7456.xml">
     <configure name="MAX7456_SPI_DEV" value="spiX" />
     <configure name="MAX7456_SLAVE_IDX" value="SPI_SLAVE0" />
   </load>
 </modules>

Module configuration options

Configure Options

name: MAX7456_SPI_DEV value: spiX
Description: select spi peripheral to use (default spi2)
name: MAX7456_SLAVE_IDX value: SPI_SLAVE0
Description: SPI slave select index

Module functions

Init Functions

These initialization functions are called once on startup.

max7456_init()

Event Functions

These event functions are called in each cycle of the module event loop.

max7456_event()

Periodic Functions

These functions are called periodically at the specified frequency from the module periodic loop.

max7456_periodic()
- Frequency in Hz: 20
- Autorun: TRUE
  Periodic function automatically starts after init.

Files

Header Files

The following headers are automatically included in modules.h

max7456.h

Source Files

modules/display/max7456.c

Raw osd_max7456.xml file:

<!DOCTYPE module SYSTEM "module.dtd">
<module name="max7456" dir="display">
  <doc>
    <description>MAX7456 driver (SPI)</description>
    <configure name="MAX7456_SPI_DEV" value="spiX" description="select spi peripheral to use (default spi2)"/>
    <configure name="MAX7456_SLAVE_IDX" value="SPI_SLAVE0" description="SPI slave select index"/>
  </doc>
  <header>
    <file name="max7456.h"/>
  </header>
  <init fun="max7456_init()"/>
  <periodic fun="max7456_periodic()" freq="20" autorun="TRUE"/>
  <event fun="max7456_event()"/>
  <makefile target="ap">
    <raw>
      MAX7456_SPI_DEV ?= spi2
      MAX7456_SPI_DEV_LOWER=$(shell echo $(MAX7456_SPI_DEV) | tr A-Z a-z)
      MAX7456_SPI_DEV_UPPER=$(shell echo $(MAX7456_SPI_DEV) | tr a-z A-Z)
      MAX7456_SLAVE_IDX ?= spi_slave2
      MAX7456_SLAVE_IDX_LOWER=$(shell echo $(MAX7456_SLAVE_IDX) | tr A-Z a-z)
      MAX7456_SLAVE_IDX_UPPER=$(shell echo $(MAX7456_SLAVE_IDX) | tr a-z A-Z)
      include $(CFG_SHARED)/spi_master.makefile
    </raw>
    <define name="USE_$(MAX7456_SPI_DEV_UPPER)" />
    <define name="USE_$(MAX7456_SLAVE_IDX_UPPER)" />
    <define name="MAX7456_SPI_DEV" value="$(MAX7456_SPI_DEV_LOWER)" />
    <define name="MAX7456_SLAVE_IDX" value="$(MAX7456_SLAVE_IDX_UPPER)" />
    <file name="max7456.c" />
    <define name="USE_PAL_FOR_OSD_VIDEO" value="1" />
    <define name="OSD_USE_EXTERNAL_SPRINTF" value="0" />
  </makefile>
</module>