STM32 Development Log 3: Button details

Button Summary

Button	Net Name	MCU Pin	Input Type	Detection Method	Interrupt Type	Pull-up Type	Pull-up Resistor
SW1	SW_INP1	PF10	Digital Input	EXTI Interrupt	Falling Edge	External	R62 = 10 kΩ
SW2	SW_INP2	PC0	Digital Input	EXTI Interrupt	Falling Edge	External	R61 = 10 kΩ
SW3	SW_INP3	PC1	Digital Input	EXTI Interrupt	Falling Edge	External	R60 = 10 kΩ
SW4	SW_INP4	PA0	Digital Input	TIM7 Polling	None	External	R59 = 10 kΩ
SW5	SW_INP5	PH2	Digital Input	EXTI Interrupt	Falling Edge	External	R57 = 10 kΩ
SW6	SW_INP6	PH3	Digital Input	EXTI Interrupt	Falling Edge	External	R56 = 10 kΩ

Switch Debounce and Protection Components

Button	Series Resistor	Debounce Capacitor	TVS / ESD Protection
SW1	R14 = 100 Ω	C10 = 0.1 µF	VS6
SW2	R15 = 100 Ω	C11 = 0.1 µF	VS7
SW3	R16 = 100 Ω	C12 = 0.1 µF	VS8
SW4	R17 = 100 Ω	C13 = 0.1 µF	VS11
SW5	R18 = 100 Ω	C14 = 0.1 µF	VS9
SW6	R19 = 100 Ω	C15 = 0.1 µF	VS10

Output / LED Summary

Function	MCU Output Pin(s)	GPIO Configuration	Controlled By
Heartbeat LED	PF2	Digital Output (Push-Pull)	TIM13 Interrupt
Output 1	PI12, PB1	Digital Output (Push-Pull)	SW1
Output 2	PI13, PB2	Digital Output (Push-Pull)	SW2
Output 3	PI14, PI15	Digital Output (Push-Pull)	SW3
Output 4	PF4	Digital Output (Push-Pull)	SW4
Output 5	PH5	Digital Output (Push-Pull)	SW5
Output 6	PK2	Digital Output (Push-Pull)	SW6