Diff: main.cpp

Revision:

0:441d8f05d7de

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Jul 20 13:40:05 2015 +0000
@@ -0,0 +1,89 @@
+//**********************
+// こて先温度計：Soldering Iron Tips Thermometer with MAX31855K
+//
+// こて先温度計シールド:Thermocouple Shield for Soldering Iron
+//      https://www.switch-science.com/catalog/2322/
+//      3.3V用にSJ1, SJ2をショートして使用しています
+//      It is the shield with MAX31855K and K-type thermocouple. 
+//  
+// Universal Embedded Board for LPC11U68 by HAPI-TechSolution
+//      https://www.switch-science.com/catalog/2316/
+//
+// I2C接続の小型LCD搭載ボード(3.3V版): 8x2 LCD display
+//      https://www.switch-science.com/catalog/1405/
+//      8x2 LCD with AQM0802 controller
+//
+//**********************
+#include "mbed.h"
+#include "AQM0802.h"
+#include "max31855.h"
+
+#define NEED_CONSOLE_OUTPUT 0
+#define NEED_LCD_OUTPUT 1
+
+#if NEED_CONSOLE_OUTPUT
+Serial  pc(USBTX, USBRX);
+#define PC(...) { pc.printf(__VA_ARGS__); }
+#else
+#define PC(...) /* nothing */
+#endif /* #if NEED_CONSOLE_OUTPUT */
+
+I2C i2c(SDA, SCL);
+SPI spi(P0_9, P0_8, P1_29);
+max31855 max1(spi, P0_2);
+
+#if NEED_LCD_OUTPUT
+AQM0802 lcd(i2c);
+#endif
+
+int main()
+{
+    char msg1[10],msg2[10];
+    float fvalue;
+    float chiptemp;
+    int faultCode;
+
+    //Initialise chip (starts internal timer)
+    max1.initialise();
+    wait(2);
+    
+    sprintf(msg1,"Temp");
+    fvalue = max1.read_temp();
+    wait_ms(500);
+        
+    while(1){  
+            fvalue = max1.read_temp();
+            PC("%d\n",fvalue);
+            
+            if (fvalue > 2000.){
+                faultCode = fvalue - 2000;
+                if((faultCode & 4 ) != 0){
+                    sprintf(msg2,"Short Vc");
+                    PC("ERROR: Short to VCC");
+                }else if((faultCode & 2 ) != 0){
+                    sprintf(msg2,"Short G ");
+                    PC("ERROR: Short to GND");
+                }else if((faultCode & 1 ) != 0){
+                    PC("ERROR: Open Circuit");
+                    sprintf(msg2,"Open    ");
+                }
+            } else {
+                sprintf(msg2,"%6.2f%cC",fvalue,0xf2);
+            }
+            
+            chiptemp = max1.chipTemp * 0.25;
+            // sprintf(msg1,"%6.2f%cC",chiptemp,0xf2);
+            
+            PC("%7.2f : %7.2f\n",fvalue, chiptemp);
+      
+#if NEED_LCD_OUTPUT
+            lcd.locate(0,0);
+            lcd.print(msg1);
+            lcd.locate(0,1);
+            lcd.print(msg2);
+
+#endif
+            wait_ms(500);
+    }
+
+}
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