yidi chen
ESTE MODULO FUNCIONA EN FRDM-KL25Z CON DISPLAY LCD 16X2
Dependencies: MAX31855 TextLCD USBDevice mbed
Fork of
LCD_FRDM_KL25Z
by 
Gustavo Ramirez
Revision 1:ac09ff440ce1, committed 2014-08-26
- Comitter:
- EDCHEN
- Date:
- Tue Aug 26 02:54:05 2014 +0000
- Parent:
- 0:a6771cc1a056
- Commit message:
- this program Reads data from thermocouple with max31855 and displays it on LCD
Changed in this revision
diff -r a6771cc1a056 -r ac09ff440ce1 MAX31855.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/MAX31855.lib Tue Aug 26 02:54:05 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/Stavlin/code/MAX31855/#5eeee89cb281
diff -r a6771cc1a056 -r ac09ff440ce1 USBDevice.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/USBDevice.lib Tue Aug 26 02:54:05 2014 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/USBDevice/#335f2506f422
diff -r a6771cc1a056 -r ac09ff440ce1 main.cpp
--- a/main.cpp Tue Sep 03 16:16:26 2013 +0000
+++ b/main.cpp Tue Aug 26 02:54:05 2014 +0000
@@ -1,11 +1,100 @@
-// Hello World! for the TextLCD
-// EJEMPLO CON UN LCD PARA EL MODULO FRDM-KL25Z
-
#include "mbed.h"
#include "TextLCD.h"
+#include "USBSerial.h"
+#include "max31855.h"
-TextLCD lcd(PTE0, PTE1, PTE2, PTE3, PTE4, PTE5); // rs, e, d4-d7
+
+TextLCD lcd(PTA13, PTD5, PTA4, PTA5, PTC8, PTC9); // rs, e, d4-d7
+DigitalOut myled(LED1);
+
+
+//----------------------------------------------------------
+//SPI Interfaces
+SPI testSPI(PTD2,PTD3,PTD1);
+//----------------------------------------------------------
+// USBSerial serial;
+
+//----------------------------------------------------------
+//Thermocouples
+max31855 max1(testSPI, PTB18);
+//----------------------------------------------------------
+
int main() {
- lcd.printf("Hello World!\n");
-}
+ //Initialise chip (starts internal timer)
+ max1.initialise();
+
+ //Float value to hold temperature returned
+ float fvalue = 0;
+ //-----------------------------------------------------------
+ lcd.cls();
+ lcd.printf("Welcome\n");
+ myled = 0;
+ wait(2);
+
+
+ lcd.cls();
+ lcd.locate(0,0);
+ lcd.printf("Set temperaure\n");
+ // lcd.locate(0,0);
+ // lcd.printf("Current temp");
+ myled =!myled;
+ wait(2);
+
+//---------------------------------------------------------------
+ while(1)
+ {
+ //Check if the chip is ready for a reading to be taken
+ if (max1.ready()==1)
+ {
+ //Get the reading
+ fvalue = max1.read_temp();
+
+ if (fvalue > 2000){
+ if(fvalue==2001){
+ //printf("No TC");
+ lcd.cls();
+ lcd.locate(0,0);
+
+ lcd.printf("NO tc");
+ }
+ else if(fvalue==2002){
+ // printf("Short to GND");
+ lcd.cls();
+ lcd.locate(0,0);
+
+ lcd.printf("short to GND");
+ }
+ else if(fvalue==2004){
+ // printf("Short to VCC");
+ lcd.cls();
+ lcd.locate(0,0);
+
+ lcd.printf("short to VCC");
+ }
+ }
+ else{
+ // printf("Temperature is: %f\n\r", fvalue);
+ //lcd.locate(6,0);
+ // lcd.printf((char*)fvalue);
+ lcd.cls();
+ lcd.locate(0,0);
+ lcd.printf("Current temp");
+ lcd.locate(0,1);
+
+ lcd.printf("T=%2.1fC",fvalue);
+
+ // lcd.printf("T=%f\n\r",fvalue);
+
+
+ }
+ }
+
+ //Heartbeat signal (not necessary)
+ myled = !myled;
+
+ //Delay is not required, here simply for test program
+ wait(0.25);
+ }
+
+}
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