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Updating firmware with the Audio Bootloader
The SMR contains a bootloader that is used to update the firmware by playing an audio file into odds IN jack.
Firmware audio files can be downloaded at http://4mscompany.com/ smr.php
1.
To enter bootloader mode, power off the SMR and connect a computer or smart phone audio output to
the odds IN jack. Either a stereo or mono cable is fine. Plug the evens OUT jack to an amp/speakers so
you can listen.
Remove your phone case, it may be preventing the cable from fully plugging in.
2. Set the computer/phone's volume is at 100%
and the audio player software is also at 100% volume.
Turn off all audio and vibrate notifications (use Airplane mode).
3.
Hold the ROTATE button down while powering the SMR on. Keep holding it down, and release the
button when you see just a single light on, slowly changing color. The SMR is ready to receive
firmware.
4.
Begin playing the file. Immediately you should see the slider LEDs do a sequential animation, and the
light ring slowly filling up with lights, and then clearing, then filling up again. Do not interrupt the
process! You can monitor the audio by listening to the evens Lock jack or the audio OUT jacks.
5.
If at any time two of the Lock lights turn on (channels 2 and 3, or channels 2 and 4) and the other lights
stop animating, then an error has occurred. Verify the cable is not loose, all sounds/vibrate/notifications
are off, and that you have downloaded the audio file completely (avoid streaming or playing from the
browser). Check the volume is at 100%. Remove the protection case from your smart phone. Stop the
audio file, reset it back to the start, and tap the ROTATE button to reset. The single flashing light should
come on and the Lock lights should turn off. Play the file from the beginning again.
The open-source licensed source files (in C, for compiling with gcc-arm) can be found at
https://www.github.com/4ms/SMR
The audio files are not at this location, they are available from http://4mscompany.com/smr.php
Firmware Version
To view the firmware version, tap the ROTATE button 10 times rapidly to enter “Custom Scales” mode. Starting
with Firmware version 2, the Blue/Green/Red elements of the Env. Outs LEDs read as a binary code of the
firmware version number, with Channel 1 Red being the least significant bit, and Channel 6 Blue being the
most significant bit.
Firmware version 1: All Env Out LEDs normal colors
Firmware version 2: Channel 1 Green
Firmware version 3: Channel 1 Yellow
Firmware version 4: Channel 1 Blue (early 2016)
Firmware version 5: Channel 1 Pink (Dec. 2016)
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Содержание Spectral Multiband Resonator
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