main.cpp

00001 #include "mbed.h"
00002 
00003 /*
00004 
00005 based on http://mbed.org/forum/mbed/topic/1704/
00006 
00007 the Pwm part doesnt work; only led1 comes on
00008 
00009 if the printf in the while is removed, or the PwmOut is moved to be static/global, all works fine
00010 
00011 seems like a memory problem.
00012 */
00013 
00014 int main() {
00015     DigitalOut led1(LED1);
00016     float f=0.0;
00017 
00018     PwmOut display(LED2);
00019 
00020     display.period_ms(1);
00021 
00022     display=f;
00023     
00024     AnalogIn light(p20);
00025    
00026     for (int i=0;i<100;i++)
00027     {
00028         f=f+0.01;
00029         display=f;
00030         wait (0.03);
00031     }
00032     printf("%f\n",display.read());
00033     led1=1;
00034         
00035     while (true)
00036     {
00037         double d=light;
00038         double sq=pow(d,0.6);
00039         display.write(sq*3);
00040         
00041         printf("%f / %f\n",d,sq);
00042         wait(1);
00043     }
00044 }