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mcallegari / qlcplus

Q Light Controller Plus (QLC+) is a free and cross-platform software to control DMX or analog lighting systems like moving heads, dimmers, scanners etc. This project is a fork of the great QLC project written by Heikki Junnila that aims to continue the QLC development and to introduce new features.
Apache License 2.0
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Open TX/RX support for generic USB CDC devices #1583

Open caitlynrw opened 3 weeks ago

caitlynrw commented 3 weeks ago

Describe the bug The Open TX/RX driver doesn't support non-FTDI serial ports.

To Reproduce Steps to reproduce the behavior:

  1. Connect a non-FTDI serial adapter, I've tested a MCP2200 and CH340
  2. Observe in Device Manager or UsbTreeView that the device is recognized as a serial port
  3. Open QLC+ and navigate to the Inputs/Outputs pane and see no USB DMX is available

Expected behavior Open TX/RX drivers can be used with other USB UART bridges.

Screenshots Connecting an Enttec Open DMX dongle Screenshot 2024-06-10 205456 Connecting an MCP220 or CH340 UART converter Screenshot 2024-06-10 205507

Desktop (please complete the following information):

Additional context N/A

mcallegari commented 3 weeks ago

Not every serial port in the world can be used as a DMX transmitter. FTDI is known to be a good solution to DMX. To add more chipsets I need to qualify them so basically I need to physically own them. Unless you prove they can be used as DMX adapter with the proper timings and without side effects.

In the meantime you can build QLC+ from sources and adapt this method to test other chipsets https://github.com/mcallegari/qlcplus/blob/master/plugins/dmxusb/src/dmxinterface.cpp#L73

If you can't do any of the above, I'll ned to close this ticket.

yestalgia commented 3 weeks ago

@caitlynrw if you make a PR I'd be willing to buy devices to test