Arduino for STM32

oh, you don't need to try to set boot0 any way to reach system bootloader you just need to jump to system memory if your magic set (or remap 0x0 to it and jump to 0x0) at early start, so it can be implemented at core side (sure with trigger handling, but its already done for all cores) system memory...

That is true, just that it requires non-standard solutions. The mentioned bootloaders do not require any additional hack, they work out of the box with Arduino. Oh really? Hid bootloader requires "leaf" string trigger handler inside a core to set backup register magic to handle its boot S...

Why just not use PA5?

afaik no direct exti->dma trigger possible, but it can be done using timer

try configMEMMANG_HEAP_NB 3

defining spi instance should be done a bit different for second core as basic arduino atmega boards never had multiple spi's there is no standard way for multiple spi instances defining for second core you can use constructor SPIClass mySPI(MOSI_PIN, MISO_PIN, CLK_PIN, CS_PIN); where *_PIN are your ...

Basically, exti interrupt can be attached to any pin (0-15) but you have to choose only one port for every pin. For example, you can attach it to pa3, pb4, pc5 but in this case you cant attach it to pb3 cuz pa3 already attached. But be careful with exti, you circuit have to be designed well to avoid...

stevestrong wrote: ↑Sat Mar 21, 2020 10:44 am You do need a bootloader if you don't want to press button for upload.
Check the HID bootloader made by Vassilis Serasidis. It may work for F4x1, too.

Not exactly, if core have a way to reset to system bootloader with some kind of trigger

Compiled binary for stm32 will always bigger be than avr, its 32 bit and it have much more complex init

svod616 wrote: ↑Tue Mar 17, 2020 2:52 pm and there is still a question on increasing FPS: is this possible?

by using constructor for hardware spi
Adafruit_ILI9341(int8_t _CS, int8_t _DC, int8_t _RST = -1);

now you are using software bitbanging