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Is there a way to configure the Aurdino IDE to look for the teensy library source in a different place? I want to hack on usb_desc.h, usb_desc.c, and usb_dev.c and I'd like to put my changes under...

I hijacked USB_MIDI_AUDIO_SERIAL like so:


#elif defined(USB_MIDI_AUDIO_SERIAL)
#define VENDOR_ID 0x16C0
#define PRODUCT_ID 0x048D
#define...

I got that to work. Thank you!

Can I have 2 USB serial ports plus audio on the 3.2? I don't need MIDI.

-Steve

Maybe this has been a known issue for at least 9 years:...

CP2102-based adapters behave like the FTDI ones.

Thank you for your time and attention. I really appreciate it. I like that protocol analyzer.

And you answered my question: there is no custom driver. Maybe the bug is in the Windows driver. Any...

Is there a custom driver for the Teensy?

There is a collection of ham radio apps that use RTS to key a transmitter. These all work with standard USB to serial port adapters like the FTDI. Of the four apps I tried, only one works to set RTS...

Yeah, never mind. That just looks like a function that you can use to wait for DTR to come high. Like

while (!Serial)
;

I just did a quick google and found this: https://github.com/PaulStoffregen/cores/blob/master/teensy3/usb_serial.h and I can't help wonder if

operator bool() { return usb_configuration &&...

I should add that it's not *just* Termite that is doing something weird. I have several other programs that use RTS as a signal, and they all function fine using other USB-to-serial adapters but not...

Here's more interesting behavior using Termite:

DTR can be ON or OFF as its initial state.

Turn RTS ON. Teensy does not see the RTS state change to ON.
Toggle DTR. Teensy now sees the RTS...

As a clarification: the 5 programs mentioned above all assert RTS correctly on the FTDI adapter, but only 2 of them set it on the Teensy.

Interestingly, RTS works as expected with CoolTerm. It must be something with how the COM port is initialized by the Windows programs. So far, I have 2 programs where RTS works as expected, and 3...

I am trying to use Serial.rts() as a signal from a Windows program to teensy code, like this:

const int LEDpin = 13;

void setup() {
Serial.begin(9600);
pinMode(LEDpin, OUTPUT);
...

Have you seen this project? http://www.kk5jy.net/AnyRig-v1/