Diff: main.cpp

Revision:

2:690dd6bdb9a7

Parent:

1:81f52f1beb21

Child:

4:d03967db9991

--- a/main.cpp	Fri Jan 05 16:53:06 2018 +0000
+++ b/main.cpp	Fri Jan 05 17:47:00 2018 +0000
@@ -1,58 +1,99 @@
 //http://www.cplusplus.com/reference/cstring/strcmp/
 
 #include "mbed.h"
-#include <string>
+#include <iostream>
+#include <string> 
+#include <stdio.h>
+#include <ctype.h>
 
-Serial pc(USBTX, USBRX);
+//Digital outputs
+DigitalOut onBoardLED(LED2);
+DigitalOut redLED(PE_15);
+DigitalOut yellowLED(PB_10);
+DigitalOut greenLED(PB_11);
+
+char rxBuffer[80];
+
+char i = 0;
+char c = 0;
+
+string key = "apple";
 
 
-DigitalOut myled(LED1);
+RawSerial pc(USBTX, USBRX, 9600);
+Thread serialRX(osPriorityNormal);
+
+// Rx Interupt routine
+void Rx_interrupt(){
+    pc.attach(NULL, Serial::RxIrq);     // Disable Rx interrupt
+    serialRX.signal_set(0xA);                   // Set signal for Rx thread
+}
 
-//THIS CODE DOESN'T WORK YET.
-//This may help http://www.cplusplus.com/reference/string/string/compare/
+// Read received chars from UART
+void rx_thread(){
+    while (true) {
+        Thread::signal_wait(0xA);
+        Thread::signal_clr(0xA);
+        //memset(rxBuffer, 0, sizeof(rxBuffer));
+        while (pc.readable()) {
+            c = pc.getc();
+            rxBuffer[i] = c; 
+            i = i + 1;
+            yellowLED = !yellowLED;
+        }
+        
+        pc.attach(&Rx_interrupt);         // Enable Rx interrupt
+        redLED = !redLED;
+        
+   
+        
+        if (c == '\r') {
+            greenLED = !greenLED;
+            string rxBufferSTR = rxBuffer;
+            int c = rxBufferSTR.length();
+            rxBuffer[c-1] = NULL;           // CR character. Probably not needed
+            //string str(rxBuffer);
+            //printf("rxBuffer: %s\n", rxBuffer);
+            //printf("rxBuffer is %u characters long\n", (unsigned)strlen(rxBuffer));
+
+            if (rxBufferSTR.find(key) != string::npos) {
+                pc.printf("Found");
+            }
+            /*
+            if (strcmp (key,rxBuffer) == 0) {
+                puts ("Apple is delicious!\n");
+
+                pc.printf ("The command entered is %u characters long.\n",(unsigned)strlen(key));
+                int i =0;
+                int keysize = (unsigned)strlen(key);
+                int endfor = keysize;
+
+                //check for number here
+
+                for(i=0; i<10; i++) {
+                    pc.printf("%c", rxBuffer[i]);
+                }
+
+            } else {
+                puts ("try again loser!\n");
+            }
+            */
+            
+            memset(rxBuffer, 0, sizeof(rxBuffer)); //only reset after strcmp
+            i = 0;
+        }
+  }
+    
+}
 
 
 int main() {
-        char key[] = "apple";
-        char key2[] = "pear";
-        char puttyBuffer[20];
-        char numBuffer[20];
+    
+    serialRX.start(rx_thread);      //start serial interrupt thread
+    pc.attach(&Rx_interrupt);           //attach interrupt function that triggers when data is available
     
     while(1) {
-        
-        myled = 1; // LED is ON
-        wait(1.0); // 200 ms
-        myled = 0; // LED is OFF
-        wait(1.0); // 1 sec
-        
-        //pc.printf("What is the password?\n");
-        pc.printf ("Please choose a fruit?\n");
-        fflush (stdout);
-        scanf ("%79s",puttyBuffer);
-        //scanf ("%79s",numBuffer);
-
-        if (strcmp (key,puttyBuffer) == 0){
-        puts ("Apple is delicious!\n");
-        /*
-        pc.printf ("The command entered is %u characters long.\n",(unsigned)strlen(key));
-        int i =0;
-        int keysize = (unsigned)strlen(key);
-        int endfor = keysize;
-        
-        //check for number here
-        
-        for(i=0; i<endfor; i++)
-            {
-            pc.printf("%c", puttyBuffer[i]);
-            }
-        */
-        }
-        else if (strcmp (key2,puttyBuffer) == 0){
-        puts ("Eww, pear is icky.\n");   
-        }
-        else{
-        puts ("try again loser!\n");
-        }
+        Thread::wait(2500);
     }
     
 }