yidi chen / Mbed 2 deprecated test_draft

ESTE MODULO FUNCIONA EN FRDM-KL25Z CON DISPLAY LCD 16X2

Dependencies:   MAX31855 TextLCD USBDevice mbed

Fork of LCD_FRDM_KL25Z by Gustavo Ramirez

main.cpp@1:ac09ff440ce1, 2014-08-26 (annotated)

Committer:
EDCHEN
Date:
Tue Aug 26 02:54:05 2014 +0000
Revision:
1:ac09ff440ce1
Parent:
0:a6771cc1a056 
this program Reads data from thermocouple with max31855 and displays it on LCD

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tony63 0:a6771cc1a056 1 #include "mbed.h"
tony63 0:a6771cc1a056 2 #include "TextLCD.h"
EDCHEN 1:ac09ff440ce1 3 #include "USBSerial.h"
EDCHEN 1:ac09ff440ce1 4 #include "max31855.h"
tony63 0:a6771cc1a056 5
EDCHEN 1:ac09ff440ce1 6
EDCHEN 1:ac09ff440ce1 7 TextLCD lcd(PTA13, PTD5, PTA4, PTA5, PTC8, PTC9); // rs, e, d4-d7
EDCHEN 1:ac09ff440ce1 8 DigitalOut myled(LED1);
EDCHEN 1:ac09ff440ce1 9
EDCHEN 1:ac09ff440ce1 10
EDCHEN 1:ac09ff440ce1 11 //----------------------------------------------------------
EDCHEN 1:ac09ff440ce1 12 //SPI Interfaces
EDCHEN 1:ac09ff440ce1 13 SPI testSPI(PTD2,PTD3,PTD1);
EDCHEN 1:ac09ff440ce1 14 //----------------------------------------------------------
EDCHEN 1:ac09ff440ce1 15 // USBSerial serial;
EDCHEN 1:ac09ff440ce1 16
EDCHEN 1:ac09ff440ce1 17 //----------------------------------------------------------
EDCHEN 1:ac09ff440ce1 18 //Thermocouples
EDCHEN 1:ac09ff440ce1 19 max31855 max1(testSPI, PTB18);
EDCHEN 1:ac09ff440ce1 20 //----------------------------------------------------------
EDCHEN 1:ac09ff440ce1 21
tony63 0:a6771cc1a056 22
tony63 0:a6771cc1a056 23 int main() {
EDCHEN 1:ac09ff440ce1 24 //Initialise chip (starts internal timer)
EDCHEN 1:ac09ff440ce1 25 max1.initialise();
EDCHEN 1:ac09ff440ce1 26
EDCHEN 1:ac09ff440ce1 27 //Float value to hold temperature returned
EDCHEN 1:ac09ff440ce1 28 float fvalue = 0;
EDCHEN 1:ac09ff440ce1 29 //-----------------------------------------------------------
EDCHEN 1:ac09ff440ce1 30 lcd.cls();
EDCHEN 1:ac09ff440ce1 31 lcd.printf("Welcome\n");
EDCHEN 1:ac09ff440ce1 32 myled = 0;
EDCHEN 1:ac09ff440ce1 33 wait(2);
EDCHEN 1:ac09ff440ce1 34
EDCHEN 1:ac09ff440ce1 35
EDCHEN 1:ac09ff440ce1 36 lcd.cls();
EDCHEN 1:ac09ff440ce1 37 lcd.locate(0,0);
EDCHEN 1:ac09ff440ce1 38 lcd.printf("Set temperaure\n");
EDCHEN 1:ac09ff440ce1 39 // lcd.locate(0,0);
EDCHEN 1:ac09ff440ce1 40 // lcd.printf("Current temp");
EDCHEN 1:ac09ff440ce1 41 myled =!myled;
EDCHEN 1:ac09ff440ce1 42 wait(2);
EDCHEN 1:ac09ff440ce1 43
EDCHEN 1:ac09ff440ce1 44 //---------------------------------------------------------------
EDCHEN 1:ac09ff440ce1 45 while(1)
EDCHEN 1:ac09ff440ce1 46 {
EDCHEN 1:ac09ff440ce1 47 //Check if the chip is ready for a reading to be taken
EDCHEN 1:ac09ff440ce1 48 if (max1.ready()==1)
EDCHEN 1:ac09ff440ce1 49 {
EDCHEN 1:ac09ff440ce1 50 //Get the reading
EDCHEN 1:ac09ff440ce1 51 fvalue = max1.read_temp();
EDCHEN 1:ac09ff440ce1 52
EDCHEN 1:ac09ff440ce1 53 if (fvalue > 2000){
EDCHEN 1:ac09ff440ce1 54 if(fvalue==2001){
EDCHEN 1:ac09ff440ce1 55 //printf("No TC");
EDCHEN 1:ac09ff440ce1 56 lcd.cls();
EDCHEN 1:ac09ff440ce1 57 lcd.locate(0,0);
EDCHEN 1:ac09ff440ce1 58
EDCHEN 1:ac09ff440ce1 59 lcd.printf("NO tc");
EDCHEN 1:ac09ff440ce1 60 }
EDCHEN 1:ac09ff440ce1 61 else if(fvalue==2002){
EDCHEN 1:ac09ff440ce1 62 // printf("Short to GND");
EDCHEN 1:ac09ff440ce1 63 lcd.cls();
EDCHEN 1:ac09ff440ce1 64 lcd.locate(0,0);
EDCHEN 1:ac09ff440ce1 65
EDCHEN 1:ac09ff440ce1 66 lcd.printf("short to GND");
EDCHEN 1:ac09ff440ce1 67 }
EDCHEN 1:ac09ff440ce1 68 else if(fvalue==2004){
EDCHEN 1:ac09ff440ce1 69 // printf("Short to VCC");
EDCHEN 1:ac09ff440ce1 70 lcd.cls();
EDCHEN 1:ac09ff440ce1 71 lcd.locate(0,0);
EDCHEN 1:ac09ff440ce1 72
EDCHEN 1:ac09ff440ce1 73 lcd.printf("short to VCC");
EDCHEN 1:ac09ff440ce1 74 }
EDCHEN 1:ac09ff440ce1 75 }
EDCHEN 1:ac09ff440ce1 76 else{
EDCHEN 1:ac09ff440ce1 77 // printf("Temperature is: %f\n\r", fvalue);
EDCHEN 1:ac09ff440ce1 78 //lcd.locate(6,0);
EDCHEN 1:ac09ff440ce1 79 // lcd.printf((char*)fvalue);
EDCHEN 1:ac09ff440ce1 80 lcd.cls();
EDCHEN 1:ac09ff440ce1 81 lcd.locate(0,0);
EDCHEN 1:ac09ff440ce1 82 lcd.printf("Current temp");
EDCHEN 1:ac09ff440ce1 83 lcd.locate(0,1);
EDCHEN 1:ac09ff440ce1 84
EDCHEN 1:ac09ff440ce1 85 lcd.printf("T=%2.1fC",fvalue);
EDCHEN 1:ac09ff440ce1 86
EDCHEN 1:ac09ff440ce1 87 // lcd.printf("T=%f\n\r",fvalue);
EDCHEN 1:ac09ff440ce1 88
EDCHEN 1:ac09ff440ce1 89
EDCHEN 1:ac09ff440ce1 90 }
EDCHEN 1:ac09ff440ce1 91 }
EDCHEN 1:ac09ff440ce1 92
EDCHEN 1:ac09ff440ce1 93 //Heartbeat signal (not necessary)
EDCHEN 1:ac09ff440ce1 94 myled = !myled;
EDCHEN 1:ac09ff440ce1 95
EDCHEN 1:ac09ff440ce1 96 //Delay is not required, here simply for test program
EDCHEN 1:ac09ff440ce1 97 wait(0.25);
EDCHEN 1:ac09ff440ce1 98 }
EDCHEN 1:ac09ff440ce1 99
EDCHEN 1:ac09ff440ce1 100 }