Jon Fuge / Mbed 2 deprecated OddExample1

Simple training demonstration to show the use of bit wise And

Dependencies:   USBDevice mbed

Fork of UnionExample by Jon Fuge

main.cpp@1:d9da28105bef, 2013-11-25 (annotated)

Committer:
jf1452
Date:
Mon Nov 25 14:26:04 2013 +0000
Revision:
1:d9da28105bef
Parent:
0:7dec7e9ac085
Child:
2:db81cad8cb64
Corrected a spelling mistake

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jf1452 1:d9da28105bef 1 /*******************************************************************************
jf1452 1:d9da28105bef 2 * This program demonstrates how to read a switch and toggle a LED. *
jf1452 1:d9da28105bef 3 * Connect LED and resistor between to DIP36 (P0_21) and DIP1 (0V). *
jf1452 1:d9da28105bef 4 * Connect switch between DIP5 (P0_9) and DIP1 (0V). *
jf1452 1:d9da28105bef 5 * *
jf1452 1:d9da28105bef 6 * Jon Fuge *
jf1452 1:d9da28105bef 7 * V1.0 12/11/2013 First issue of code *
jf1452 1:d9da28105bef 8 *******************************************************************************/
dan 0:7dec7e9ac085 9
jf1452 1:d9da28105bef 10 #include "mbed.h" // has prototypes for DigitalIn and DigitalOut
jf1452 1:d9da28105bef 11
jf1452 1:d9da28105bef 12 DigitalIn mybutton(P0_9); // mybutton reads bit 9 of port 0 (DIP5).
jf1452 1:d9da28105bef 13 DigitalOut myled(P0_21); // myled controls bit 21 of port 0 (DIP36).
dan 0:7dec7e9ac085 14
dan 0:7dec7e9ac085 15 int main() {
jf1452 1:d9da28105bef 16 mybutton.mode(PullUp); // Configure pin to be a pull‐up input
jf1452 1:d9da28105bef 17 for(;;) { //Create infinite loop to keep program running.
jf1452 1:d9da28105bef 18 if (mybutton == 0) { // if mybutton = 0, then it has been pressed
jf1452 1:d9da28105bef 19 myled = !myled; // myled will now become !myled (! means NOT).
jf1452 1:d9da28105bef 20 wait(0.1); // Wait for 0.1 seconds to "debounce" the switch.
jf1452 1:d9da28105bef 21 while (mybutton == 0) {} // Wait for my button to be released.
jf1452 1:d9da28105bef 22 } // End of if (mybutton == 0)
jf1452 1:d9da28105bef 23 } // End of for(;;)
jf1452 1:d9da28105bef 24 } // end of int main()