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main.cpp
00001 #include "mbed.h" 00002 00003 DigitalOut myled(LED1); 00004 DigitalOut Center(PA_9); 00005 DigitalIn Port0(PA_8); 00006 DigitalIn Port1(PA_10); 00007 00008 PortOut C(PortC,0xFF); 00009 InterruptIn irqA(PA_1); 00010 InterruptIn irq0(PA_8); 00011 InterruptIn irq1(PA_10); 00012 00013 int z=0,Zustand=0,Zustandalt=0; 00014 00015 void isr(void) 00016 { 00017 myled=!myled; 00018 00019 } 00020 00021 void isrEnc(void) 00022 { 00023 Zustandalt=Zustand; 00024 if (Port0==0 && Port1==0) Zustand=0; 00025 if (Port0==1 && Port1==0) Zustand=1; 00026 if (Port0==1 && Port1==1) Zustand=2; 00027 if (Port0==0 && Port1==1) Zustand=3; 00028 if (Zustandalt==3 && Zustand==0) z++; 00029 if (Zustandalt==0 && Zustand == 3) z--; 00030 C=(z<<2)+Zustand; 00031 } 00032 00033 int main() { 00034 Center=1; 00035 // Port0.mode(PullDown); 00036 // Port1.mode(PullDown); 00037 irqA.rise(&isr); 00038 irqA.mode(PullDown); 00039 irq0.rise(&isrEnc); 00040 irq0.fall(&isrEnc); 00041 irq0.mode(PullDown); 00042 irq1.rise(&isrEnc); 00043 irq1.fall(&isrEnc); 00044 irq1.mode(PullDown); 00045 00046 RCC->AHBENR|=0b100; 00047 GPIOC->MODER=0x5555; 00048 //GPIOC->ODR=0x55; 00049 C=0; 00050 while(1) { 00051 00052 /* 00053 myled = 1; // LED is ON 00054 wait(0.2); // 200 ms 00055 myled = 0; // LED is OFF 00056 wait(1.0); // 1 sec 00057 C=0; 00058 */ 00059 } 00060 }
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