Baudrate for USB Serial Cables

Koromix / tytools

Collection of tools to manage Teensy boards

https://koromix.dev/tytools

The Unlicense

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Baudrate for USB Serial Cables #43

Closed luni64 closed 4 years ago

luni64 commented 5 years ago

In cases where I can not use the native Teensy USB Serial (e.g. when I use it to communicate to a PC program) I usually connect a FTDI USB-Serial cable to Serial1 for debugging. Since tyCmd is able to connect to the FTDI I would like to use its serial monitor for debugging.

However, it looks like it doesn't detect the baud rate correctly.

After I connect the cable to putty, set the correct baudrate and quit putty, it works in tyCmd as well:

Any chance to add baudrate setting / autodetect to generic boards?

Koromix commented 4 years ago

In the latest commit, I've added a per-board serial rate setting available in the "Options" tab. Like other settings, TyTools remembers it. I haven't tested it with a non-Teensy board but it should work the same.

You can find the corresponding Win64 build here: https://koromix.dev/files/tytools/

luni64 commented 4 years ago

Thanks, this kind of works. Changing the baudrate to the correct value only works after power cycling (plug out/in) of the usb cable. Looks like it doesn't apply the baudrate immediately but stores the value and sets it at detection of the device. Same for setting to a wrong baudrate.

Koromix commented 4 years ago

OK, what about the new-new-build? :p https://koromix.dev/files/tytools/

luni64 commented 4 years ago

Did you change anything? It has the same build number as the one I tested

luni64 commented 4 years ago

Sorry, didn't refresh the browser....

luni64 commented 4 years ago

Perfect, switching baud rates works now.

However, I get some additional blank lines in the output. (not a big deal but putty doesn't show them). Seems to work if I use the native Serial port instead of Serial1 + cable. This has nothing to do with the current changes, I observed them for quite while.

Code:

Koromix commented 4 years ago

Hmmm, I may have an idea about that. I just need to find my own USB-serial converter to do some tests (which may be the hardest part about it).

Koromix commented 4 years ago

Does the new build (TyTools-0.8.11-16-gc874426) fix the extra-lines issue ? I could not test it (still haven't found my converter), so it's based on a hunch.

luni64 commented 4 years ago

Yes, works perfectly. Thanks again, this tool gets better and better all the time! :-)

Koromix commented 4 years ago

Thanks for the test!