Converts MIDI clock messages to 2PPQ sync signals.
- Microchip ATtiny202
This project uses PlatformIO to build.
- platform: Atmel megaAVR
When the build is complete, write via UPDI.
Connects to the sending MIDI device with a MIDI cable and to the receiving device with a 3.5 mm stereo cable.
The mode switch can be used to select the action to be taken when a MIDI START/STOP message is received.
The PA2 pin is assigned to mode switch. PA2 is pulled up and goes High when open.
| PA2 | behaviour |
|---|---|
| Low | Sends out or stops the sync signal in conjunction with MIDI Start and Stop messages. |
| High | Free run. When MIDI Clock is received, the Sync signal is sent regardless of the playback status of the MIDI device. |
In this project, the pulse width of the sync signal is set to 5 ms.
The reason for this is that the KORG specification is 15 ms, but many other companies' devices use 5 ms.
If you want to change this, change the value of TCA.SINGLE.PER in TCA0_init() and rebuild.
MIDItoSyncConverter is open source and licensed under the GPL3 License.