Diff: main.cpp

Revision:

0:a321a9d74411

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Thu Jun 23 07:35:38 2016 +0000
@@ -0,0 +1,324 @@
+#include "mbed.h"
+#include "SerialEvent.h"
+
+Serial pc(USBTX,USBRX);
+SerialEvent pc1(USBTX,USBRX);
+PwmOut red(p36);
+PwmOut green(p5);
+PwmOut blue(p34);
+DigitalOut led1(LED1);
+DigitalOut led2(LED2);
+DigitalOut led3(LED3);
+DigitalOut led4(LED4);
+DigitalOut led6(P1_0);
+Timer timer;
+Ticker tick1;
+Ticker tick2;
+Ticker tick3;
+Ticker tick4;
+
+// States
+//typedef enum {ST_EIN, ST_AUS, ST_ERROR, ST_STATE1} nextState;
+// alternativ
+const int ST_BOOT = 0;
+const int ST_AUTH = 1;
+const int ST_STRING = 2;
+const int ST_RECEIVE = 3;
+const int ST_COMP = 4;
+const int ST_SUCCESS = 5;
+const int ST_FAIL = 6;
+const int ST_END = 7;
+char inString[STRMAX];
+char stringRND[STRMAX];
+char message[STRMAX];
+int line= 0;
+int tries= 0 ;
+int poss = 0;
+void blink();
+void gen_random(char *s, const int len)
+{
+    static const char alphanum[] =
+        "0123456789"
+        "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+        "abcdefghijklmnopqrstuvwxyz";
+
+    for (int i = 0; i < len; ++i) {
+        s[i] = alphanum[rand() % (sizeof(alphanum) - 1)];
+    }
+}
+////----------------------------------Ticker Klasse---------------------------------
+class Blinker {
+public:
+    Blinker(PinName pin) : _pin(pin) {
+        _pin = 0;
+    }
+    void blink() {
+        _pin = !_pin;
+    }
+private:
+    DigitalOut _pin;
+};
+Blinker t1(LED1);
+Blinker t2(LED2);
+Blinker t3(LED3);
+Blinker t4(LED4);
+// ---------------- Event Klasse --------------------------
+class SwEvent
+{
+    InterruptIn _isr;
+    bool _pressed;
+    void _RisingISR();
+
+public:
+    SwEvent(PinName pin) : _isr(pin) {
+        _pressed = false;
+    }
+    int CheckFlag();    // dies muss im do-Zweig (while(true) Schleife) ständig abgefragt werden
+    void InitIsr();
+};
+
+int SwEvent::CheckFlag()
+{
+    if( _pressed ) {
+        _pressed = false;
+        return 1;
+    }
+    return 0;
+}
+
+void SwEvent::InitIsr()
+{
+    _isr.rise(this, &SwEvent::_RisingISR);
+}
+
+void SwEvent::_RisingISR()
+{
+    if( _isr.read() )
+        _pressed = true;
+}
+
+SwEvent sw1(P0_10);
+
+// ----------------- Stm Klasse -----------------------------
+class Stm
+{
+public:
+    Stm() {
+        state=ST_BOOT;
+    }
+
+    void Boot();
+    void Auth();
+    void String();
+    void Receive();
+    void Comp();
+    void Success();
+    void Fail();
+    void End();
+
+    int state;
+};
+
+
+void Stm::Boot()
+{   tick1.detach();
+    tick2.detach();
+    tick3.detach();
+    tick4.detach();
+    pc.printf("Hello\n");
+    timer.start();
+    while(true) {
+        led1 = led2 = led3 = led4 = 0;
+
+        if(timer.read() >= 1) {
+            state = ST_AUTH;
+            led1 = 1;
+            timer.stop();
+            timer.reset();
+            return;
+        }
+    }
+}
+
+void Stm::Auth()
+{
+    
+    
+    pc.printf("Press Sw 2\n");
+    while(true) {
+        led6 = 1;
+        if(sw1.CheckFlag()) {
+            led6 = 0;
+            state = ST_STRING;
+            return;
+        }
+        
+    }
+}
+
+
+void Stm::String()
+{
+    tick1.detach();
+    tick2.detach();
+    tick3.detach();
+    tick4.detach();
+    gen_random(stringRND,5);
+    pc.printf("RND String lautet: %s \n", stringRND);
+    pc.printf("Geben Sie ihn nun erneut ein: \n");
+    timer.start();
+    while(true) {
+        led1 = 0;
+        led2 = 1;
+
+        //s[len] = 0;
+        state = ST_RECEIVE;
+        return;
+    }
+}
+
+
+void Stm::Receive()
+{
+    tick1.detach();
+    tick2.detach();
+    tick3.detach();
+    tick4.detach();
+    //pc1.pc_recv();
+    if(pc1.checkFlag()) {
+        pc1.getString(inString);
+        //pc1.scanf(inString);
+        pc.printf("%s\n", inString);
+        state = ST_COMP;
+        return;
+
+    }
+}
+
+void Stm::Comp()
+{
+    tick1.detach();
+    tick2.detach();
+    tick3.detach();
+    tick4.detach();
+    if(strncmp(stringRND,inString,5) == 0) {
+        pc.printf("Sie haben %f Sekunden fuer Ihre Authentifikation benoetigt\n", timer.read());
+        state = ST_SUCCESS;
+        return;
+    } else if( tries == 3) {
+        state = ST_END;
+        return;
+    } else {
+        tries++;
+        poss = 4 - tries;
+        pc.printf("Sie haben noch %d Moeglichkeiten, um sich richtig zu authentifizieren",poss);
+        state = ST_RECEIVE;
+    }
+}
+
+void Stm::Success()
+{
+    tick1.detach();
+    tick2.detach();
+    tick3.detach();
+    tick4.detach();
+    printf("WELCOME!");
+    led1 = led2 = led3 = led4 = 1;
+    //message[STRMAX] = '\0';
+    while(true) {
+        if(pc1.checkFlag()) {
+            pc1.getString(message);
+            line++;
+            pc.printf("%d:%d>%s\n",line,strlen(message),message);
+            if(message[0] == '.') {
+                state = ST_AUTH;
+                return;
+            }
+        }
+    }
+}
+
+void Stm::Fail()
+{
+    tick1.detach();
+    tick2.detach();
+    tick3.detach();
+    tick4.detach();
+    while(true) {
+
+        led1 = led3 = led4 = 0;
+        led2 = 1;
+        state = ST_END;
+        return;
+    }
+}
+
+
+void Stm::End()
+{
+        //led1 = led2 = led3 = led4 = 1;
+        tick1.attach(&t1, &Blinker::blink, 0.2);
+        tick2.attach(&t2, &Blinker::blink, 0.2);
+        tick3.attach(&t3, &Blinker::blink, 0.2);
+        tick4.attach(&t4, &Blinker::blink, 0.2);
+        /*while(true){
+            if(timer.read_ms()%200 == 0){
+            led1 =~ led1;
+            led2 =~ led2;
+            led3 =~ led3;
+            led4 =~ led4;
+            }
+            }*/  
+        tries = 0;
+        pc.printf("%d", timer.read());
+        state = ST_AUTH;
+        return;
+}
+
+
+
+
+Stm stm;
+
+void stateMachine()
+{
+    switch (stm.state) {
+        case ST_BOOT:
+            stm.Boot();
+            break;
+        case ST_AUTH:
+            stm.Auth();
+            break;
+        case ST_STRING:
+            stm.String();
+            break;
+        case ST_RECEIVE:
+            stm.Receive();
+            break;
+        case ST_COMP:
+            stm.Comp();
+            break;
+        case ST_SUCCESS:
+            stm.Success();
+            break;
+        case ST_FAIL:
+            stm.Fail();
+            break;
+        case ST_END:
+            stm.End();
+            break;
+
+
+    }
+}
+
+int main()
+{
+    //printf("Hello STM\n");
+    sw1.InitIsr();
+
+    red=green=1;
+    while(1) {
+        stateMachine();
+    }
+}
\ No newline at end of file