Charles Tritt
/
TW_Ex_9_1
InterruptIn demonstration based on T &W's Example 9.1
main.cpp
- Committer:
- CSTritt
- Date:
- 2017-10-09
- Revision:
- 1:e731e5467ab1
- Parent:
- 0:3151531e9a31
File content as of revision 1:e731e5467ab1:
/* Project: TW_Ex_9_1 File: main.cpp An example similar to T&W example 9.1. Green junction will flash continuously. Blue junction will toggle in response to depressing the user button. Created by Dr. C. S. Tritt Last revised: 10/6/17 (v. 1.1) */ #include "mbed.h" InterruptIn myButton(USER_BUTTON); // Button is normally high. Goes low w/press. DigitalOut bluLED(D4); // Bluee and green LED junctions. DigitalOut grnLED(D3); void myISR() { // Simple ISR toggles the blue LED junction when called. bluLED = !bluLED; // Toggle blue junction. } int main() { bluLED = 0; // Turn blue & green off at start. grnLED = 0; myButton.fall(&myISR); // "Register" the ISR routine. Sets vector. while(true) { grnLED = !grnLED; // Toggle green junction. wait(0.5); // Pause half a second. } }