Oscillators / Mbed 2 deprecated Lab3

yup

Dependencies:   keypad mbed

Fork of Lab3 by Matthew Dorshimer

main.cpp@6:7ed6688e3caf, 2016-11-08 (annotated)

Committer:
Dorsh
Date:
Tue Nov 08 21:12:57 2016 +0000
Revision:
6:7ed6688e3caf
Parent:
5:d27422e874af
Child:
7:31184fd43707
Got rid of the class, used a static integer instead of the object state variable. Works the same, just kinda better this way instead of using a handler

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Dorsh 4:a10c7172b4f6 1 #include "mbed.h"
Dorsh 4:a10c7172b4f6 2 #include "Keypad.h" //Open Source Library for adaFruit KeyPad
Dorsh 4:a10c7172b4f6 3 //Modified to work with 4 row 3 col keypad
Dorsh 4:a10c7172b4f6 4 #include "CAN.h" //Open Source Library for CAN transmitter
simon 0:fb6bbc10ffa0 5
simon 0:fb6bbc10ffa0 6 DigitalOut myled(LED1);
Dorsh 2:022b41ff9719 7 CAN can1(p30,p29);
Dorsh 2:022b41ff9719 8
Dorsh 2:022b41ff9719 9
Dorsh 4:a10c7172b4f6 10 //Keypad Values
Dorsh 4:a10c7172b4f6 11 char Keytable[] = { '1', '2', '3', // r0
Dorsh 4:a10c7172b4f6 12 '4', '5', '6', // r1
Dorsh 4:a10c7172b4f6 13 '7', '8', '9', // r2
Dorsh 4:a10c7172b4f6 14 '*', '0', '#', // r3
Dorsh 4:a10c7172b4f6 15 };
Dorsh 4:a10c7172b4f6 16 // c0 c1 c2
Dorsh 2:022b41ff9719 17
Dorsh 4:a10c7172b4f6 18 //This is what happens when a key is pressed
Dorsh 4:a10c7172b4f6 19 //Assigns Index to the value generated by the keypad
Dorsh 4:a10c7172b4f6 20 //This lets us use the keypad number
Dorsh 4:a10c7172b4f6 21 uint32_t Index;
Dorsh 4:a10c7172b4f6 22 uint32_t cbAfterInput(uint32_t index) {
Dorsh 4:a10c7172b4f6 23 Index = index;
Dorsh 4:a10c7172b4f6 24 return 0;
Dorsh 4:a10c7172b4f6 25 }
Dorsh 2:022b41ff9719 26
Dorsh 4:a10c7172b4f6 27 void send(char *str) {
Dorsh 4:a10c7172b4f6 28 printf("send(%s)\n",str);
Dorsh 2:022b41ff9719 29 if(can1.write(CANMessage(1, str, 1))) {
Dorsh 2:022b41ff9719 30 printf("wloop()\n");
Dorsh 2:022b41ff9719 31 printf("Message sent: \n");
Dorsh 4:a10c7172b4f6 32 }
Dorsh 4:a10c7172b4f6 33 }
Dorsh 6:7ed6688e3caf 34
Dorsh 6:7ed6688e3caf 35 //Returns a specific message to be sent to the CAN Bus
Dorsh 6:7ed6688e3caf 36 const char *createMessage(char *key) {
Dorsh 6:7ed6688e3caf 37
Dorsh 6:7ed6688e3caf 38 static int subsys = 0; //0 = DAC, 1 = DigiPot, 2 = ADC
Dorsh 6:7ed6688e3caf 39 //static will keep the state of subsys after each call
Dorsh 6:7ed6688e3caf 40 const char* sysName[] = {"DAC", "DigiPot", "ADC"};
Dorsh 6:7ed6688e3caf 41 const int numOfSubsys = 3;
Dorsh 6:7ed6688e3caf 42 \
Dorsh 6:7ed6688e3caf 43 //cycles between subsystems when the '#' key is pressed
Dorsh 6:7ed6688e3caf 44 if(key == '#') {
Dorsh 6:7ed6688e3caf 45 subsys = (subsys + 1) % (numOfSubsys); //cycles from 0,1,2,0,1,2,etc
Dorsh 6:7ed6688e3caf 46 printf("Now working with Subsystem %s\n", sysName[subsys]);
Dorsh 6:7ed6688e3caf 47 return "switched";
Dorsh 6:7ed6688e3caf 48 }
Dorsh 4:a10c7172b4f6 49
Dorsh 6:7ed6688e3caf 50 //This handles all message creation
Dorsh 6:7ed6688e3caf 51 //Work with the other teams to determine what they need
Dorsh 6:7ed6688e3caf 52 //Stick to 8 characters (8 bytes) max
Dorsh 6:7ed6688e3caf 53 //Probably better to use a code (like hex or something)
Dorsh 6:7ed6688e3caf 54 else {
Dorsh 6:7ed6688e3caf 55 switch(subsys) {
Dorsh 6:7ed6688e3caf 56 case 0:
Dorsh 6:7ed6688e3caf 57 if(key == '*')
Dorsh 6:7ed6688e3caf 58 return "DACswitch";
Dorsh 6:7ed6688e3caf 59 else if(key == '1')
Dorsh 6:7ed6688e3caf 60 return "omsg";
Dorsh 6:7ed6688e3caf 61 break;
Dorsh 6:7ed6688e3caf 62 case 1:
Dorsh 6:7ed6688e3caf 63 if(key == '*')
Dorsh 6:7ed6688e3caf 64 return "msg";
Dorsh 6:7ed6688e3caf 65 else if(key == '1')
Dorsh 6:7ed6688e3caf 66 return "omsg";
Dorsh 6:7ed6688e3caf 67 break;
Dorsh 6:7ed6688e3caf 68 case 2:
Dorsh 6:7ed6688e3caf 69 if(key == '*')
Dorsh 6:7ed6688e3caf 70 return "msg";
Dorsh 6:7ed6688e3caf 71 else if(key == '1')
Dorsh 6:7ed6688e3caf 72 return "omsg;
Dorsh 6:7ed6688e3caf 73 break;
Dorsh 4:a10c7172b4f6 74 }
Dorsh 6:7ed6688e3caf 75 return "null"; //no message
Dorsh 4:a10c7172b4f6 76 }
Dorsh 6:7ed6688e3caf 77 }
Dorsh 4:a10c7172b4f6 78
Dorsh 4:a10c7172b4f6 79 int main() {
Dorsh 4:a10c7172b4f6 80 // r0 r1 r2 r3 c0 c1 c2
Dorsh 2:022b41ff9719 81 Keypad keypad(p21, p22, p23, p24, p25, p26, p27);
Dorsh 2:022b41ff9719 82 keypad.attach(&cbAfterInput);
Dorsh 2:022b41ff9719 83 keypad.start(); // energize the keypad via c0-c3
Dorsh 5:d27422e874af 84 char *msg = "a"; //initialize to something
Dorsh 4:a10c7172b4f6 85 while (1) {
Dorsh 6:7ed6688e3caf 86 __wfi(); //waits for input
Dorsh 4:a10c7172b4f6 87 printf("Interrupted\r\n");
Dorsh 2:022b41ff9719 88 wait(0.5);
Dorsh 6:7ed6688e3caf 89 *msg = createMessage( Keytable[Index] );
Dorsh 2:022b41ff9719 90 send(msg);
Dorsh 4:a10c7172b4f6 91 printf("Index:%d => Key:%c\r\n", Index, Keytable[Index]);
Dorsh 2:022b41ff9719 92 }
Dorsh 2:022b41ff9719 93 }