A number of firmware image files are compiled for every new MULTI-Module firmware release. Use the MULTI-Module Firmware Download site to download the correct file for your module:
The standard firmware file names follow this pattern:
multi-[module type]-[radio type]-[channel order]-[telemetry inversion]-[firmware version].bin
The parts of the file name are explained below.
Determines the type of MCU the firmware was built for:
avr - for older MULTI-Modules with an ATmega328p MCU
stm - for MULTI-Modules with an STM32 MCU
orangerx - for OrangeRX modules running MULTI-Module firmware
The firmware of the radio the module is (or will be) installed in.
erskytx - for radios running the erSky firmware
opentx - for radios running OpenTX firmware
ppm - for any radio which uses PPM Mode
The Expected Channel Order for the firmware image.
aetr - expects to receive channel data in AETR order
reta - expects to receive channel data in RETA order
taer - expects to receive channel data in TAER order
Specifies whether or not the telemetry signal from the MULTI-Module is inverted.
inv - telemetry signal is inverted
noinv - telemetry signal is not inverted
The version number of the firmware.
Some examples to help select the correct firmware file:
Jumper T16 Internal
A small number of files are compiled for debugging or development purposes. These files are only produced with AETR channel order and with telemetry inversion enabled.
Firmware is produced for serial debugging using either an internal or external USB-to-serial adapter, or the MULTI-Module's native USB port.
Serial Debugging firmware outputs diagnostic information to the module's serial port during operation.
Serial debugging firmware is named in this pattern:
multi-stm-[radio type]-aetr-inv-[debugging type]-[firmware version].bin
Debugging Type is either:
ftdidebug - debugging using a USB-to-serial adapter
usbdebug - debugging using the native USB port
See the Serial Debugging page for more information:
Protocol Dumping firmware enables the radio to capture and decoding RF transmissions from other RC transmitters which use the common XN297 RF module. This can be used to reverse-engineer unknown protocols so that they can be added to the MULTI-Module.
Captured data is displayed via serial output.
Protocol Dumping firmware is named in this pattern:
multi-stm-[radio type]-xn297dump-inv-[debugging type]-[firmware version].bin
See the Protocol Dumping page for more information: