STM32FCubeIDE___TIM1 ( Up Counter )

Timer Setting

 

Prescaler ( PSC - 16 bits value ) = 8000 - 1

• Timer Clock : 8MHz
• Prescaler : 8000 - 1
• Set Freq. : ( 8MHz / 8000 - 1 ) = 1KHz ( OneCycle 1msce )

Timer Clock = 8MHz = 8000000 / 8000 = 1KHz ( One Clock = 1msec )

 

Counter Period ( AutoReload Register - 16 bits value ) = 1000-1

• Period : 1KHz
• Prescaler : 1000 - 1
• Set Time : 1 sec

1000 Counter ( 1sec )

 

TIM1 - Parameter Settings

 

TIM1 - NVIC Settings ( Interrupt )

 

Code

 

  Interrupt 사용하게 위해서는 아래 함수를 코드에 추가해야한다.

main.c - TIM1 Interrupt Start 

 

stm32f1xx_it.c - TIM1 test code ( uart print )