File content as of revision 2:02021bd6b07e:

#include "mbed.h"
#include "Keypad.h"

Ticker ticker;
Serial        PC(USBTX, USBRX);
DigitalOut led1(LED1);
DigitalOut led2(LED2);
CAN can1(p9,p10);
CAN can2(p30,p29);
DigitalIn pin21(p21);
DigitalIn pin22(p22);
DigitalIn pin23(p23);
DigitalIn pin24(p24);
DigitalIn pin25(p25);
DigitalIn pin26(p26);
DigitalIn pin27(p27);


//Declare KeyPad GPIO pins here

char Keytable[] = { '1', '2', '3', //row0, p1, mbedpin21
                    '4', '5', '6', //row1, p2, mbedpin22
                    '7', '8', '9', //row2, p3, mbedpin23
                    '*', '0', '#', //row3, p4, mbedpin24
                   };
                    //col0, col1, col2
                    //p5, p6, p7
                    //mbedpin25, mbedpin26, mbedpin27


int32_t       Index =-1;
int           State;
 
uint32_t cbAfterInput(uint32_t _index)
{
    Index = _index;
    return 0;
} 

//Universal ID: 1337
//CAN Message Info
char counter        = 0;    //keypad system CAN test variable
char start          = '*';  //Start
char stop           = '#';  //Stop / Reset
char amp5           = 5;    //Digipot
char amp4           = 4;    //Digipot
char amp3           = 3;    //Digipot
char amp2           = 2;    //Digipot
char amp1           = 1;    //Digipot
char sin10Hz        = 'q';  //DAC -6
char sin1Hz         = 'w';  //DAC -7
char sqr10Hz        = 'o';  //DAC -8
char sqr1Hz         = 't';  //DAC -9
char saveUSB        = 'u';  //ADC -0
char saveLocal      = 'l';  //ADC That's an l as in labeorphily
char keypress;


//CAN Send (Parameter = message data) 
void send(char sendMsg) {
    if(can1.write(CANMessage(1337, &sendMsg, 1))) {
        printf("Message sent: %d\n", sendMsg);       
    }
    led1 = !led1;
}

/* write Switch statements*/
//Setup Choice Switch Statements





int main() { 


    State = 1;


    //             r0   r1   r2   r3   c0   c1   c2   c3
    Keypad keypad(p21, p22,  p23,  p24, p25, p26,  p27,  NC);
    keypad.attach(&cbAfterInput);
    keypad.start();  // energize the columns c0-c3 of the keypad
 
    while (1) {
        __wfi();
        if (Index > -1) {
            PC.printf("Interrupted");
            PC.printf("Index:%d => Key:%c\r\n", Index, Keytable[Index]);
            Index = -1;
            printf("here2");
        }
    
 
 printf("Please choose waveform:\n1: 1V \n2: 2V \n3: 3V \n4: 4V \n5: 5V \n6: 10Hz, Sine wave");
 printf("\n7: 1Hz, Sine Wave\n8: 10Hz, Square Wave \n9: 1Hz, Square wave \n0: Save to USB \n*: Start Waveform Generation \n#: Stop/Reset Waveform\n");
   
    while(1)
    {
        keypress = Keytable[Index];
    switch(keypress) {
   case 1  :
    send(amp1);
    Index=-1;
    printf("here1");
      break; //optional
      
   case 2  :
      send(amp2);
      Index=-1;
      break; //optional
      
   case 3  :
      send(amp3);
     Index=-1;
      break; //Optional   
   
   case 4 :
      send(amp4);
     Index=-1;
      break;
   
    case 5 : 
      send(amp5);
      Index=-1;
      break;
    
    case 6 :
      send(sin10Hz);
     Index=-1;
      break;
    
    case 7 :
        send(sin1Hz);
      Index=-1;
        break;
    
    case 8 :
        send(sqr10Hz);
        Index=-1;
        break;
    
    case 9 :
        send(sqr1Hz);
       Index=-1;
        break;
    
    case 0 :
        send(saveUSB);
      Index=-1;
        break;
    
    case '*' :
        send(start);
        Index=-1;
        break;
    
    case '#' :
        send(stop);
       Index=-1;
        break;
            
            };
            }
    /*CANMessage msg; 
    while(1) {
        if(can2.read(msg)) {
            printf("Message Recieved: %d\n\n", msg.data[0]);
            led2 = !led2;
        }
    wait(0.2);
    }*/
}
}