Posted on June 29, 2018 at 13:00Hi, I bought a chinese dev-board, more specifically this one:amazon: https://www.amazon.com/Diymore-STM32F407VGT6-Cortex-M4-Discovery-Development/dp/B01M7YB5HF schematics: http://dubstylee.net/v/wp-content/uploads/201...