Richard Kuo / Mbed OS NTOUEE-mbed-GPIO

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main.cpp@0:5ea758382ca4, 2016-10-20 (annotated)

Committer:
rkuo2000
Date:
Thu Oct 20 12:27:12 2016 +0000
Revision:
0:5ea758382ca4
Child:
1:3f1ad029882f
mbed GPIO for Buttons, LEDs, Buzzer

Who changed what in which revision?

UserRevisionLine numberNew contents of line
rkuo2000 0:5ea758382ca4 1 // using NuMaker-PFM-NUC472 GPIO pins connected to Buttons, LEDs, Buzzer
rkuo2000 0:5ea758382ca4 2 #include "mbed.h"
rkuo2000 0:5ea758382ca4 3
rkuo2000 0:5ea758382ca4 4 DigitalOut rgbled_B(PD_8); // low-active
rkuo2000 0:5ea758382ca4 5 DigitalOut rgbled_R(PD_9); // low-active
rkuo2000 0:5ea758382ca4 6 DigitalOut rgbled_G(PA_4); // low-active
rkuo2000 0:5ea758382ca4 7 DigitalOut greenled(PG_0); // low-active
rkuo2000 0:5ea758382ca4 8 DigitalOut buzzer(PD_11); // low-active
rkuo2000 0:5ea758382ca4 9 DigitalIn button_SW1(PC_12); // press button =0
rkuo2000 0:5ea758382ca4 10 DigitalIn button_SW2(PC_13); // press button =0
rkuo2000 0:5ea758382ca4 11
rkuo2000 0:5ea758382ca4 12 // main() runs in its own thread in the OS
rkuo2000 0:5ea758382ca4 13 // (note the calls to Thread::wait below for delays)
rkuo2000 0:5ea758382ca4 14 int main() {
rkuo2000 0:5ea758382ca4 15
rkuo2000 0:5ea758382ca4 16 rgbled_B=1; rgbled_R=1; rgbled_G=1;
rkuo2000 0:5ea758382ca4 17 greenled=1;
rkuo2000 0:5ea758382ca4 18 buzzer=1;
rkuo2000 0:5ea758382ca4 19
rkuo2000 0:5ea758382ca4 20 while (true) {
rkuo2000 0:5ea758382ca4 21 // press SW1 will turn on greeled and RGBLED=blue
rkuo2000 0:5ea758382ca4 22 if (button_SW1==0) {
rkuo2000 0:5ea758382ca4 23 greenled=0;
rkuo2000 0:5ea758382ca4 24 rgbled_B=0;
rkuo2000 0:5ea758382ca4 25 }
rkuo2000 0:5ea758382ca4 26 else {
rkuo2000 0:5ea758382ca4 27 greenled=1;
rkuo2000 0:5ea758382ca4 28 rgbled_B=1;
rkuo2000 0:5ea758382ca4 29 }
rkuo2000 0:5ea758382ca4 30 // press SW2 will turn on buzzer
rkuo2000 0:5ea758382ca4 31 if (button_SW2==0) buzzer=0;
rkuo2000 0:5ea758382ca4 32 else buzzer=1;
rkuo2000 0:5ea758382ca4 33 }
rkuo2000 0:5ea758382ca4 34 }
rkuo2000 0:5ea758382ca4 35