Arduino for STM32

I can't say why sysex is not working, you could check if there is any updates of library.
As for USB, try not to press reset
Close any program that is using Maple midi-out, compile and flash, disconnect and reconnect USB cable, wait until computer recognize it and start program again.

IMHO, yes, you'll need to program every event when received from or send to USB. Whole purpose of USB Composite library is that it can be detected to computer as midi device (for receiving and sending) and virtual com port at the same time. Maybe even HID device? I forgot the limitations... You can ...

I have some test code from a time when i was experimented with midi, but i'm not sure what you are looking for. Anyway, this short sketch should send stuff over USB serial port, midi data received from PC as Maple midi out device (uploaded with st-link). #include <USBComposite.h> #define SPEAKER_PIN...

As i recall from my experiments with audio and MIDI, on Roger's (and Steve's) core for bluepill (STM32F103C8/B) there is built-in USBComposite library that can act as USB MIDI device (but i'm not 100% sure is it compatible with HID bootloader). ST core don't have MIDI class implemented, but maybe ar...

jcbuntu wrote: ↑Sat Sep 25, 2021 1:56 pm So, i don't understand why RM0041 says that TIM15, 16, 17 are for all devices :

RM0041 is reference manual for STM32F100xx.
RM0008 is for Bluepill (medium density, STM32F103xx). Page 40.

For timer (interrupt only): HardwareTimer *timer = new HardwareTimer(TIM5); uint16_t prescalefactor = 0xFF; volatile uint16_t timer_value = 10; volatile bool timer_tick = true; void overflowISR() { timer_tick = true; } void setup() { timer->pause(); timer->setPrescaleFactor(prescalefactor); timer->s...

Sorry, my mistake. Just because you posted in forum's section for STM32 core , i assumed you want to use STM32 core. Anyway, you are right, it doesn't matter what timer are you using, since it is only for interrupt, not for PWM on a pin. SPISettings settingsA(70000000, MSBFIRST, SPI_MODE2); will set...

- Better re-check pinout for you board. On STM32F401CC TIM5 is connected to PA0/1/2/3. TIM2 is alternate function, not default. You could compare to bluepill: F401 https://github.com/stm32duino/Arduino_Core_STM32/blob/master/variants/STM32F4xx/F401CC(F-U-Y)_F401C(B-D-E)(U-Y)/PeripheralPins_BLACKPILL...

I can confirm that it's working using D2/D3/D4 (and 2/3/4) instead of PA_2/PA_3/PA4.

I guess i've just being lucky.
What about port B pins? PB1 should work without underscore? I can't test that at the moment.

I just checked (on WeAct STM32F411CE), library version 1.7.3 .

It works if i use: It doesn't work with: I don't know why it is behaving like that...