USE_TINYUSB build flag shouldn't be set by default for all Adafruit boards

[SRGDamia1]

On the Arduino IDE it is used if selected by menu, not by default: https://github.com/adafruit/Adafruit_TinyUSB_Arduino/issues/13

[erikkallen]

I could not compile usb host library samd anymore and had to add build_flags = -UUSE_TINYUSB to platformio.ini as a workaround hope it helps anyone

[deladriere]

@valeros Ok now on atmelsam@3.8.1 the tinyusb is not set by default. What is I need to use the tinyusb : what would be the build_flags syntax ? can I use build_flags = -D USE_TINYUSB

[valeros]

build_flags = -D USE_TINYUSB - that's correct.

[deladriere]

Ok the flags seem to be working but compiling this example https://github.com/adafruit/Adafruit_TinyUSB_Arduino/blob/master/examples/MIDI/midi_test/midi_test.ino gives this error

src/main.cpp: In function 'void setup()':
src/main.cpp:55:24: error: 'handleNoteOn' was not declared in this scope
   MIDI.setHandleNoteOn(handleNoteOn);
                        ^~~~~~~~~~~~
src/main.cpp:58:25: error: 'handleNoteOff' was not declared in this scope
   MIDI.setHandleNoteOff(handleNoteOff);

[env:adafruit_feather_m0]
platform = atmelsam@3.8.1
board = adafruit_feather_m0
build_flags = -D USE_TINYUSB
framework = arduino
lib_deps =
    Adafruit TinyUSB Library
    MIDI Library

it compiles and runs fine on the Arduino IDE

[valeros]

That problem is with the code, if you are using .cpp extension then you need to convert the example to valid C++ code manually. So handleNoteOff function should be at least declared above the first use.

[deladriere]

Ah sorry! I corrected the code by declaring the function before use but I still have an error : src/main.cpp:25:20: error: cannot declare variable 'usb_midi' to be of abstract type 'Adafruit_USBD_MIDI'

[valeros]

That's more subtle issue, what version of Atmel SAM package are you using in Arduino IDE? What version of Adafruit TinyUSB is installed there?

[deladriere]

Adadruit Samd 1.5.3 with [Adafruit_TinyUSB_Library@0.6.0]

[valeros]

The outdated adafruit core was the problem. Please update to the latest v3.9.0 and try again. Thanks!

[deladriere]

Thanks but this gives a new error

Processing adafruit_feather_m0 (platform: atmelsam@3.9.0; board: adafruit_feather_m0; framework: arduino) PlatformManager: Installing atmelsam @ 3.9.0 Error: Could not find a version that satisfies the requirement '3.9.0' for your system 'darwin_x86_64' The terminal process terminated with exit code: 1

[valeros]

@deladriere Yeah, sorry, 3.9.0 is released now, please try again.

[deladriere]

Its working fine now, thanks!