Arduino for STM32

if that didn't work, you may need
disconnect usb cable
press and both boot0 and reset and connect the cable (if you need 'extra hands', try to find out if those pins reset or boot0 can be connected to gnd (reset) or 3v3 (boot0) using jumper/dupont wires.
hold boot0 and release reset
release boot0 ...

First of all I'm fairly new to STM32, so please excuse my lack of knowledge here... :|

I accidentally set "PA9" as INPUT_PULLUP in a sketch and after uploading the sketch I can't seem to program my Black Pill F401 anymore using USB and DFU.
It says
Error: Target device not found
Establishing ...

It's a (known) issue with the pin mapping in the Adafruit library, no need to revert back to deprecated STM32 Cores!

viewtopic.php?p=8170#p8170

Bummer
Thanks for the clarification!
The "up to 16 channels" really had me confused...

Hi to all,

first of I'm new to STM32. Up to now I have only been working in the classic Arduino realm. The need for more ADC and Hardware PWM pins made me switch to a black pill board.

Is there any way to use more than the standard 10 adc pins (PA0-PB1) on the F401 BlackPill board?

In the ...