Revision 11:3cc46e37f97f, committed 2016-12-02

Comitter:

Dorsh

Date:

Fri Dec 02 18:15:45 2016 +0000

Parent:

10:337f8b757d8d

Commit message:

ye

Changed in this revision

--- a/main.cpp	Mon Nov 28 17:47:24 2016 +0000
+++ b/main.cpp	Fri Dec 02 18:15:45 2016 +0000
@@ -21,13 +21,12 @@
  *      read messages, the keypad subsystem is complete
 */
 
-void createMessage(char* msg); //Creates message based off Keytable[Index] press
+char createMessage(); //Creates message based off Keytable[Index] press
 void send(char* msg); //Takes the created message and sends to the CAN Bus
 
 //DigitalOut myled(LED1);
 CAN can2(p30,p29);
 CAN can1(p9,p10);
-const int msgLength = 8; //Length of message sent to CAN Bus
 char Keytable[] = { '1', '2', '3',    // r0
                     '4', '5', '6',    // r1
                     '7', '8', '9',    // r2
@@ -51,13 +50,13 @@
       keypad.attach(&cbAfterInput);
       keypad.start();  // energize the keypad via c0-c3
       
-      char msg[msgLength];//initialize to something 8 characters
+      char msg = 'z';
       CANMessage recievedMessage;
     while (1) {
         __wfi(); //waits for input
         printf("Interrupted\r\n");
         wait(0.5);
-        send(msg);
+        send(&msg);
         printf("Index:%d => Key:%c\r\n", Index, Keytable[Index]);
         if(can2.read(recievedMessage)) {
             printf("Message received: %s\n", recievedMessage.data);
@@ -67,15 +66,15 @@
   
   
 void send(char *str) {
-    createMessage(str);
-    printf("send(%s)\n",str);
-    if(can1.write(CANMessage(1337, str, msgLength))) {
+    *str = createMessage();
+    printf("send(%c)\n",str[0]);
+    if(can1.write(CANMessage(1337, str, 1))) {
         printf("wrote successfully\n");
         } 
     }
     
 //Returns a specific message to be sent to the CAN Bus
-void createMessage(char msg[]) {
+char createMessage() {
     
     char key = Keytable[Index];
     static int subsys = 0; //0 = DAC, 1 = DigiPot, 2 = ADC 
@@ -87,9 +86,6 @@
     if(key == '#') {
         subsys = (subsys + 1) % (numOfSubsys); //cycles from 0,1,2,0,1,2,etc
         printf("Now working with Subsystem %s\n", sysName[subsys]);
-        memset(msg, '\0', sizeof(msg));
-        strcpy(msg,"switch");
-        printf("this is the solution\n");
     }
     
     //Handles all message creation
@@ -99,23 +95,37 @@
     else {
         switch(subsys) {
             case 0:
-                if(key == '*')
-                    strcpy(msg, "D_");
+                if(key == '2')
+                    return 'a';
                 else if(key == '1')
-                    strcpy(msg, "D_");
+                    return 'b';
+                else if(key == '3')
+                    return 'c';
+                else if(key == '4')
+                    return 'd';
+                else if(key == '5')
+                    return 'e';
+                else if(key == '6')
+                    return 'f';
                 break;
             case 1:
-                if(key == '*')
-                    strcpy(msg, "DACswitc");
-                else if(key == '1')
-                    strcpy(msg, "DACswitc");
+                if(key == '1')
+                    return '1';
+                else if(key == '2')
+                    return '2';
+                else if(key == '3')
+                    return '3';
+                else if(key == '4')
+                    return '4';
+                else if(key == '5')
+                    return '5';
                 break;
             case 2:
                 if(key == '*')
-                    strcpy(msg, "A_switch");
+                    return 'A';
                 break;
             default:
-                strcpy(msg, "null"); //no message
+                return '0';
                 break;
             
             }