Arduino for STM32

Hello everyone,

So i wrote a code handling polyphonic MIDI - nothing really complicated (it needs to be optimized for some peculiar cases like having error into the messages)

void handleMidiInput()
{
if (Serial.available() > 0)
{

byte incoming_byte = Serial.read() ;

switch (MIDI_reception ...

Thanks everyone for your contribution - I will definitively try some of those solutions, also after some more enquiries i suspect the crystal to be indeed not at 8MHz. The error i measured is way less than 0,1%, another solution i m into is to calibrate the timing : sending a precise reference for ...

This is the code i am using now

In the setup :


Timer2.pause() ;
Timer2.setMode(TIMER_CH1, TIMER_OUTPUTCOMPARE);
Timer2.setPeriod(100); // in microseconds - 10kHz
Timer2.setCompare(TIMER_CH1, 1); // overflow might be small
Timer2.attachInterrupt(TIMER_CH1, htimer_interrupt);
Timer2 ...

Thanks for the suggestion, besides using the PWM solution i m still scratching my head to understand what's going on - do we agree the timing should be really more accurate ?
Also I have four signals to generate like this with different periods and variable timing (but still that needs to be quite ...

Hello everyone,

for a project i need to generate triggers at a precise period.
It seems the triggers are drifiting from a reference (a few ms after several minutes which is not ok for my application).

In order to have the more precise period possible, i worked with a timer interupt (at 10kHz ...

Thanks for the answer - i was afraid i missed something not reading the forum for one entire year

Hello everyone,

i rencently bought some gd32f103cBt6 to replace the quite pricey stm32 :)

I just drop the gd on a custom dev card i have - running with a 8MHz crystal. I had no problem uploading my sketch, working with the GPIO and the SPI but not with the I2C. I know it must be related to the ...

You can use STM32CubeProgrammer


So dowmload it ready to upload but ... Which adress should i write the bin file to ? I m wondering if 0#08000000 is the address for the bootloader and if my bin file should start at a further adress.

Thank you !


Edit : just checked with my arduino IDE ...

GonzoG wrote: Wed Nov 11, 2020 12:15 am You can use STM32CubeProgrammer

So dowmload it ready to upload but ... Which adress should i write the bin file to ? I m wondering if 0#08000000 is the adress for the bootloader and if my bin file should start at a further adress.

Thank you !

Thanks everyone !!! That s really helpfull