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main.cpp
00001 /*********************************/ 00002 /* Binary Count on the Four LEDs */ 00003 /* With optional Trace to TTY */ 00004 /*********************************/ 00005 00006 #include "mbed.h" 00007 00008 Serial pc(USBTX, USBRX); // tx, rx 00009 DigitalOut led1(LED1), led2(LED2), led3(LED3), led4(LED4); 00010 int p=0, q=0, r=0, s=0; 00011 00012 00013 int main() { 00014 led1=0,led2=0,led3=0,led4=0; 00015 pc.printf("\n\nStart ... %d %d %d %d %s \n", p, q, r, s, "Count"); 00016 00017 for (int j=0; j<256; j++) { 00018 //wait(0.2); //Slow it down to see it 00019 if (led1==1&&led2==1&&led3==1) { 00020 led1=0; 00021 led2=0; 00022 led3=0; 00023 led4=!led4; 00024 } else if (led1==1&&led2==1) { 00025 led1=0; 00026 led2=0; 00027 led3=!led3; 00028 } else if (led1==1) { 00029 led1=0; 00030 led2=!led2; 00031 } else led1=!led1; 00032 //pc.printf("Now ... %d %d %d %d %d \n", p=led1, q=led2, r=led3, s=led4, j); //turn on TTY Trace (slow) 00033 } 00034 } 00035
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