Marko Marinović / Mbed 2 deprecated ProjektKTM_SLAVE_v16

slave

Dependencies:   mbed TextLCD

main.cpp@0:e1ce6b0a884d, 2019-02-09 (annotated)

Committer:
brahimir
Date:
Sat Feb 09 13:03:22 2019 +0000
Revision:
0:e1ce6b0a884d
slave

Who changed what in which revision?

UserRevisionLine numberNew contents of line
brahimir 0:e1ce6b0a884d 1 #include "mbed.h"
brahimir 0:e1ce6b0a884d 2 #include "TextLCD.h"
brahimir 0:e1ce6b0a884d 3 //slave
brahimir 0:e1ce6b0a884d 4
brahimir 0:e1ce6b0a884d 5 AnalogIn pot(PTB1); // postavi pin
brahimir 0:e1ce6b0a884d 6 InterruptIn button(PTD4);
brahimir 0:e1ce6b0a884d 7 DigitalOut mod1(PTD0);
brahimir 0:e1ce6b0a884d 8 DigitalOut mod2(PTD2);
brahimir 0:e1ce6b0a884d 9 DigitalOut mod3(PTD3);
brahimir 0:e1ce6b0a884d 10 Timer debounce;
brahimir 0:e1ce6b0a884d 11 I2CSlave i2c_slave(PTC11, PTC10); //sda, scl
brahimir 0:e1ce6b0a884d 12 TextLCD lcd(PTB8,PTB9,PTB10,PTB11,PTE2,PTE3,TextLCD::LCD16x2); // LCD
brahimir 0:e1ce6b0a884d 13 Serial pc(USBTX,USBRX);
brahimir 0:e1ce6b0a884d 14
brahimir 0:e1ce6b0a884d 15 float temp;
brahimir 0:e1ce6b0a884d 16 float temp_k;
brahimir 0:e1ce6b0a884d 17 float temp_f;
brahimir 0:e1ce6b0a884d 18 int rec;
brahimir 0:e1ce6b0a884d 19 char podaci[2];
brahimir 0:e1ce6b0a884d 20 char temp_read[2];
brahimir 0:e1ce6b0a884d 21 const int addr_slave = 0x80;
brahimir 0:e1ce6b0a884d 22 int state = 0;
brahimir 0:e1ce6b0a884d 23 int old = 0;
brahimir 0:e1ce6b0a884d 24 //int buttonPoll = 0;
brahimir 0:e1ce6b0a884d 25
brahimir 0:e1ce6b0a884d 26 float pretvori_temp(){
brahimir 0:e1ce6b0a884d 27 temp = 0.0625 * (((temp_read[0] << 8) + temp_read[1]) >> 4); //konverzija u float vrijednost deg C
brahimir 0:e1ce6b0a884d 28 return temp;
brahimir 0:e1ce6b0a884d 29 }
brahimir 0:e1ce6b0a884d 30
brahimir 0:e1ce6b0a884d 31 void isr1(){
brahimir 0:e1ce6b0a884d 32 if (debounce.read_ms() > 200) {
brahimir 0:e1ce6b0a884d 33 state = old + 1;
brahimir 0:e1ce6b0a884d 34 old = state;
brahimir 0:e1ce6b0a884d 35 debounce.reset();
brahimir 0:e1ce6b0a884d 36 }
brahimir 0:e1ce6b0a884d 37 }
brahimir 0:e1ce6b0a884d 38
brahimir 0:e1ce6b0a884d 39
brahimir 0:e1ce6b0a884d 40 int main(){
brahimir 0:e1ce6b0a884d 41 mod1 = 1;
brahimir 0:e1ce6b0a884d 42 mod2 = 0;
brahimir 0:e1ce6b0a884d 43 mod3 = 0;
brahimir 0:e1ce6b0a884d 44
brahimir 0:e1ce6b0a884d 45 lcd.cls();
brahimir 0:e1ce6b0a884d 46 wait(0.01);
brahimir 0:e1ce6b0a884d 47 i2c_slave.frequency(100000);
brahimir 0:e1ce6b0a884d 48 i2c_slave.address(addr_slave<<1);
brahimir 0:e1ce6b0a884d 49
brahimir 0:e1ce6b0a884d 50 debounce.start();
brahimir 0:e1ce6b0a884d 51 button.rise(&isr1);
brahimir 0:e1ce6b0a884d 52
brahimir 0:e1ce6b0a884d 53 while(1){
brahimir 0:e1ce6b0a884d 54 float Ain = pot.read();
brahimir 0:e1ce6b0a884d 55 float temp_ref = 17.0 + ((float)Ain*10.0); // 17 - 27 C T_ref
brahimir 0:e1ce6b0a884d 56 short temp_ref_100 = temp_ref*100;
brahimir 0:e1ce6b0a884d 57
brahimir 0:e1ce6b0a884d 58 rec = i2c_slave.receive();
brahimir 0:e1ce6b0a884d 59
brahimir 0:e1ce6b0a884d 60 switch(rec){
brahimir 0:e1ce6b0a884d 61 case 0: break;
brahimir 0:e1ce6b0a884d 62 case 1:
brahimir 0:e1ce6b0a884d 63 wait_us(50); //clock-stretching
brahimir 0:e1ce6b0a884d 64 podaci[0] = temp_ref_100>>8; //MSB
brahimir 0:e1ce6b0a884d 65 podaci[1] = temp_ref_100; //LSB
brahimir 0:e1ce6b0a884d 66 i2c_slave.write(podaci,2);
brahimir 0:e1ce6b0a884d 67 break;
brahimir 0:e1ce6b0a884d 68 case 2:
brahimir 0:e1ce6b0a884d 69 case 3:
brahimir 0:e1ce6b0a884d 70 i2c_slave.read(temp_read,2);
brahimir 0:e1ce6b0a884d 71 pretvori_temp();
brahimir 0:e1ce6b0a884d 72 temp_k= temp + 273.15; // T(K) = t(C);
brahimir 0:e1ce6b0a884d 73 temp_f= (temp*1.8)+32; //(0°C × 9/5) + 32 = 32°F
brahimir 0:e1ce6b0a884d 74 lcd.cls();
brahimir 0:e1ce6b0a884d 75 wait(0.01);
brahimir 0:e1ce6b0a884d 76 switch(state){
brahimir 0:e1ce6b0a884d 77 case 1: //celsius
brahimir 0:e1ce6b0a884d 78 mod1 = 1;
brahimir 0:e1ce6b0a884d 79 mod2 = 0;
brahimir 0:e1ce6b0a884d 80 mod3 = 0;
brahimir 0:e1ce6b0a884d 81 lcd.printf("Mod 1 - Celsius\nT = %.2f C", temp);
brahimir 0:e1ce6b0a884d 82 //pc.printf("Primljena temp: %2f C\n\r", temp);
brahimir 0:e1ce6b0a884d 83 wait(0.5);
brahimir 0:e1ce6b0a884d 84 break;
brahimir 0:e1ce6b0a884d 85 case 2: //kelvin
brahimir 0:e1ce6b0a884d 86 mod1 = 0;
brahimir 0:e1ce6b0a884d 87 mod2 = 1;
brahimir 0:e1ce6b0a884d 88 mod3 = 0;
brahimir 0:e1ce6b0a884d 89 lcd.printf("Mod 2 - Kelvin\nT = %.2f K", temp_k);
brahimir 0:e1ce6b0a884d 90 //pc.printf("Primljena temp: %2f K\n\r", temp_k);
brahimir 0:e1ce6b0a884d 91 wait(0.5);
brahimir 0:e1ce6b0a884d 92 break;
brahimir 0:e1ce6b0a884d 93 case 3: //fahrenheit
brahimir 0:e1ce6b0a884d 94 mod1 = 0;
brahimir 0:e1ce6b0a884d 95 mod2 = 0;
brahimir 0:e1ce6b0a884d 96 mod3 = 1;
brahimir 0:e1ce6b0a884d 97 lcd.printf("Mod 3 - Fahr\nT = %.2f F", temp_f);
brahimir 0:e1ce6b0a884d 98 //pc.printf("Primljena temp: %2f F\n\r", temp_f);
brahimir 0:e1ce6b0a884d 99 wait(0.5);
brahimir 0:e1ce6b0a884d 100 break;
brahimir 0:e1ce6b0a884d 101 case 4:
brahimir 0:e1ce6b0a884d 102 mod1 = 0;
brahimir 0:e1ce6b0a884d 103 mod2 = 0;
brahimir 0:e1ce6b0a884d 104 mod3 = 0;
brahimir 0:e1ce6b0a884d 105 lcd.printf("Temp ref:\nT = %.2f C", temp_ref);
brahimir 0:e1ce6b0a884d 106 //pc.printf("Poslana temp_ref: %2f C\n\r", temp_f);
brahimir 0:e1ce6b0a884d 107 wait(0.5);
brahimir 0:e1ce6b0a884d 108 break;
brahimir 0:e1ce6b0a884d 109 default: //celsius
brahimir 0:e1ce6b0a884d 110 old = 1;
brahimir 0:e1ce6b0a884d 111 mod1 = 1;
brahimir 0:e1ce6b0a884d 112 mod2 = 0;
brahimir 0:e1ce6b0a884d 113 mod3 = 0;
brahimir 0:e1ce6b0a884d 114 lcd.printf("Mod 1 - Celsius\nT = %.2f C", temp);
brahimir 0:e1ce6b0a884d 115 //pc.printf("Primljena temp: %2f C\n\r", temp);
brahimir 0:e1ce6b0a884d 116 wait(0.5);
brahimir 0:e1ce6b0a884d 117 break;
brahimir 0:e1ce6b0a884d 118 }
brahimir 0:e1ce6b0a884d 119 break;
brahimir 0:e1ce6b0a884d 120 default:break;
brahimir 0:e1ce6b0a884d 121 }
brahimir 0:e1ce6b0a884d 122
brahimir 0:e1ce6b0a884d 123 }
brahimir 0:e1ce6b0a884d 124 }