Arm Microcontrollers Programming And Circuit Building [extra Quality]

ARM chips hate voltage ripple. You must place 100nF ceramic capacitors as close as possible to every VDD/VSS pin pair. Additionally, a 10µF tantalum capacitor should sit near the power input. Without these, your chip will reset randomly.

Hardware tip: To use debugging, you must break out the header on your PCB: 4 pins (VDD, GND, SWDIO, SWCLK). Do not rely on "serial bootloader" only; real debugging requires SWD. Arm Microcontrollers Programming And Circuit Building

A free, all-in-one tool for ST microcontrollers. ARM chips hate voltage ripple