Arduino for STM32

ive made a simple test using classic bluepill board and logic analyzer here the sample code void setup() { Serial.begin(115200); Serial1.begin(115200); pinMode(PA3, OUTPUT); pinMode(LED_BUILTIN, OUTPUT); } void loop() { Serial.println("Starting..."); digitalWrite(LED_BUILTIN, HIGH); digita...

@fpiSTM it's implemented in libmaple/roger's core and do the same, at least last time ive tried it with rs485 using roger's core

it's working and shouldn't stuck

that ino you posted have separate .c/.h files with init code

check it
https://github.com/palmerr23/Black-F407 ... c#L81-L108
that's the main part you missing imho

i can't see important parts in your code
at least i can't find init of analog pins, dma init and linking dma with adc

Oh, come on, you've implemented CAN and stucked with basic GPIO?
pinMode/digitalRead will help you

Nice. But that needs, again, a special driver to be installed on the host system right? Otherwise you cannot use DFUse or dfu-util or cubeprog. The HID or CDC bootloaders do not require any special driver. ;) Sure, and we already discussed it) 1. it's needed only once to install a driver, and also,...

Im sure, implementing cdc triggered jump to sysbl for yours or roger's core which supports limited amount of mcus will not be difficult, at least its easier than writing your own bl. For hal based core its wip and im using it for several months already.

BTW: if the systemCore clock uses the HSE on a board not having any quartz, it should work anyway because the internal clock HSI is switched only if the HSE is ready and running. I've tested this on a F030R8 MCU try to force the use of the HSE in a board with the Quartz not populated. But the worki...

Most f4's have internal system dfu bl, so its not necessary unless you need some specific functions for your own project