This file contains a program which uses built in timer features of the STM32 MCU to testa a user's reaction time. More...

Namespaces
	Lab0x02
	This package contains lab2a.py, lab2b.py.

Functions
def	lab2b.cb1 (timer)
	First Callback Function. More...

def	lab2b.cb2 (timer)
	Second Callback Function. More...

Variables
	lab2b.count = None
	The timer count used to keep track of the IC.

int	lab2b.comp = 0
	The timer count used to keep track of the OC.

	lab2b.timmy = pyb.Timer(2, prescaler = 8000, period = 0xffff)
	Initialization of Timer2 as a free running counter.

	lab2b.pina5 = pyb.Pin (pyb.Pin.board.PA5, pyb.Pin.OUT_PP)
	Initialization of pin A5.

	lab2b.pinb3 = pyb.Pin (pyb.Pin.board.PB3, pyb.Pin.IN)
	Initialization of pin B3.

	lab2b.pinc13 = pyb.Pin (pyb.Pin.board.PC13, pyb.Pin.IN)
	Initialization of pin C13.

	lab2b.ch1
	Initialization of timer channel 1. More...

	lab2b.ch2 = timmy.channel(2, pyb.Timer.IC, pin = pinb3, polarity = pyb.Timer.FALLING)
	Initialization of timer channel 2.

list	lab2b.tries = []
	Runs the program to test a user's reaction time. More...

tuple	lab2b.rTime = (comp - count) % 65535
	Computes the reaction time.

Detailed Description

This file contains a program which uses built in timer features of the STM32 MCU to testa a user's reaction time.

Function Documentation

◆ cb1()

def lab2b.cb1 ( timer )

First Callback Function.

Triggered by an Output Compare (OC) compare match on PA5 using Channel 1 of Timer 2. PA5 goes high when interrupt occurs and toggles otherwise.

Parameters

timer Timer the timer being used.

Returns: Returns nothing.

◆ cb2()

def lab2b.cb2 ( timer )

Second Callback Function.

Triggered by an Input Capture (IC) on PB3 using Channel 2 of Timer 2. When IC interrupt is triggered, the timer value is automatically stored in the capture value.

Parameters

timer Timer the timer being used.

Returns: Returns nothing.

Variable Documentation

◆ ch1

lab2b.ch1

Initial value:

1 = timmy.channel(1, pyb.Timer.OC_TOGGLE, pin = pina5,

2 polarity = pyb.Timer.HIGH)

Initialization of timer channel 1.

◆ tries

list lab2b.tries = []

Runs the program to test a user's reaction time.

@ brief Keeps track of all the attempts.

Namespaces

Functions