一階邏輯開根號計算,使用 ticker 每隔二秒執行一次 LED 閃爍,直到計算完成後恆亮

Dependencies:   mbed

Committer:
mbedschool
Date:
Sat Feb 14 04:56:34 2015 +0000
Revision:
0:41518d1f552d
ticker

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbedschool 0:41518d1f552d 1 #include "mbed.h"
mbedschool 0:41518d1f552d 2
mbedschool 0:41518d1f552d 3 Ticker flipper;
mbedschool 0:41518d1f552d 4 DigitalOut led1(LED1);
mbedschool 0:41518d1f552d 5 bool c=false;
mbedschool 0:41518d1f552d 6 void flip() {
mbedschool 0:41518d1f552d 7 while (!c) {
mbedschool 0:41518d1f552d 8 led1 = !led1;
mbedschool 0:41518d1f552d 9 }
mbedschool 0:41518d1f552d 10 led1=1;
mbedschool 0:41518d1f552d 11 }
mbedschool 0:41518d1f552d 12
mbedschool 0:41518d1f552d 13 int main() {
mbedschool 0:41518d1f552d 14
mbedschool 0:41518d1f552d 15 flipper.attach(&flip, 2.0); // the address of the function to be attached (flip) and the interval (2 seconds)
mbedschool 0:41518d1f552d 16 // spin in a main loop. flipper will interrupt it to call flip
mbedschool 0:41518d1f552d 17 while(1) {
mbedschool 0:41518d1f552d 18 unsigned long n=100000000;
mbedschool 0:41518d1f552d 19 float x=0;
mbedschool 0:41518d1f552d 20 while(x*x <n)
mbedschool 0:41518d1f552d 21 x = x + 0.01 ;
mbedschool 0:41518d1f552d 22 c=true;
mbedschool 0:41518d1f552d 23 }
mbedschool 0:41518d1f552d 24 }