65 أسطر
2.7 KiB
C++
65 أسطر
2.7 KiB
C++
// EnableInterrupt HiSpeed example sketch
|
|
// See https://github.com/GreyGnome/EnableInterrupt and the README.md for more information.
|
|
|
|
// This example demonstrates the use of the EnableInterrupt library on a single pin of your choice.
|
|
// It uses the "HiSpeed" mode of the library.
|
|
// This has only been tested on an Arduino Duemilanove and Mega ADK.
|
|
// It is designed to work with the Arduino Duemilanove/Uno, Arduino Mega2560/ADK, the Arduino
|
|
// Leonardo, and the Arduino Due. Please let me know how you fare on the Leonardo or Due.
|
|
|
|
// To use:
|
|
|
|
// 1. You must be using a fairly recent version of the Arduino IDE software on your PC/Mac,
|
|
// that is, version 1.0.1 or later. Check Help->About Arduino in the IDE.
|
|
|
|
// 2. Wire a simple switch to an Analog or Digital pin (pin 8 in the example below)
|
|
// that supports interrupts. See https://github.com/GreyGnome/EnableInterrupt/wiki/Usage#Summary
|
|
// Attach the other end to a GND pin. A "single pole single throw momentary contact normally
|
|
// open" // pushbutton switch is best for the most interrupting fun.
|
|
// See https://www.sparkfun.com/products/97 and https://octopart.com/b3f-1000-omron-3117
|
|
|
|
// 3. When pressed, the switch will connect the pin to ground ("low", or "0") voltage, and interrupt the
|
|
// processor. See http://arduino.cc/en/Tutorial/DigitalPins
|
|
|
|
// 4. The interrupt is serviced immediately, and the ISR (Interrupt SubRoutine) sets the value of a global
|
|
// variable. Open Tools->Serial Monitor in the IDE to see the results of your interrupts.
|
|
|
|
// 5. Peruse the Examples directory for more elaborate examples.
|
|
|
|
// 6. Create your own sketch using the EnableInterrupt library!
|
|
|
|
// Refer to
|
|
// https://github.com/GreyGnome/EnableInterrupt/wiki/Usage#Summary
|
|
|
|
#define NEEDFORSPEED
|
|
|
|
#define INTERRUPT_FLAG_PIN8 myvariable_pin8 // NOTICE: NO semicolon!!!
|
|
|
|
#include <EnableInterrupt.h>
|
|
|
|
// Attach the interrupt in setup()
|
|
void setup() {
|
|
//uint8_t pind, pink;
|
|
Serial.begin(115200);
|
|
EI_printPSTR("---------------------------------------\r\n");
|
|
pinMode(8, INPUT_PULLUP); // Configure the pin as an input, and turn on the pullup resistor.
|
|
// See http://arduino.cc/en/Tutorial/DigitalPins
|
|
enableInterruptFast(8, CHANGE);
|
|
}
|
|
|
|
// In the loop, we just check to see where the interrupt count is at. The value gets updated by the
|
|
// interrupt routine.
|
|
void loop() {
|
|
EI_printPSTR("---------------------------------------\r\n");
|
|
delay(1000); // Every second,
|
|
if (myvariable_pin8) {
|
|
EI_printPSTR("Pin 8 was interrupted: ");
|
|
Serial.print(myvariable_pin8, DEC); // print the interrupt count.
|
|
EI_printPSTR(" times so far.\r\n");
|
|
myvariable_pin8=0;
|
|
}
|
|
else {
|
|
EI_printPSTR("No interrupts.\r\n");
|
|
}
|
|
}
|