Serial Port silently crashes TinyCLR Config v2.3.0.1000

TinyCLR OS
1

TinyCLR Config v2.3.0.1000 silently crashes when connecting to a COM port. This happens when trying to set the speed to 921600, but most COM equipment does not support this speed and throws an exception, as a result the port is not initialized and the program crashes.

2

Please provide minimum setup and code needed to reproduce this issue. We need a way for us to see what you are seeing please.

3

Uhhh… Gus, I’m afraid you misunderstood me.
This has nothing to do with the program in SCM20260.
I have a physical COM port that doesn’t support high speed, and a USB-CDC adapter that supports 921600.

  1. I open TinyCLR Config v2.3.0.1000.
  2. SCM20260 is in Bootloader mode.
  3. I select the port: “COM1”.
  4. I click “Connect”.
  5. TinyCLR Config shuts down without saying goodbye.

I hope you won’t kick me too hard. I used dnSpy to try to find the cause of the crash. If connectionManager.Connect(port) returns null - then “TinyCLR Config” crashes.

But it returns null:

  • if there was an exception when changing the speed (in my case, it is a physical port);
  • if it did not wait for a response;
  • received a response at a speed of 921600 and requested a restart of the device (in my case, it is a virtual CDC port).
4

This we need to look into.

The baud rate doesn’t mean anything when using USB.

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5

Thank for adding to github issue, we will look into it soon.

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6

I agree, I made a mistake. When connecting USB<->USB-CDC it doesn’t mean. I meant the physical USB<->RS232 adapter on the CH430, FT232, etc. chips.

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