Diff: main.cpp

Revision:

2:d3e63bd08832

Parent:

1:6bed4f6f7b35

Child:

3:adc7ee7569d2

--- a/main.cpp	Tue Oct 23 10:55:17 2012 +0000
+++ b/main.cpp	Tue Feb 21 11:37:49 2017 +0000
@@ -5,14 +5,145 @@
 
 //----------------------------------------------------------
 //SPI Interfaces
-SPI testSPI(p11,p12,p13);
+//SPI testSPI(p11,p12,p13);//MOSI MISO SCK for LPC1768
+SPI testSPI(P0_26,P0_25,P0_24);//MOSI MISO SCK for LPC824MAX
 //----------------------------------------------------------
 
 //----------------------------------------------------------
 //Thermocouples
-max31855 max1(testSPI,p21);
+//max31855 max1(testSPI,p21);
+max31855 max1(testSPI,P0_15);//Digital Out LPC824MAX
+//----------------------------------------------------------
+
+//----------------------------------------------------------
+//Reflow Oven
+DigitalOut oOven(P0_27);
+//FUN
+DigitalOut oFan(P0_13);
+
 //----------------------------------------------------------
 
+float getTemp(void){
+    float fvalue = 0.0;
+    if (max1.ready()==1){
+        //Get the reading
+        fvalue = max1.read_temp();
+        //fvalue = fvalu;
+        //fvalue = fvalue *2 -160.0; //calibration here
+        //fvalue = fvalue; //calibration here
+        if((fvalue >= 2000)&&(fvalue <= 2010)){
+            printf("Plobe error : maybe wire is cut.\r\n");
+        }else{
+            printf("Temp: %4.2f\n\r", fvalue);
+            myled = !myled;
+            return fvalue;
+        }
+    }else{
+        printf("Can not get Temp\n\r");
+        return -1;//error can not get temp
+        
+    }
+}
+
+void keepCool(void){
+    oOven = 0;
+    oFan = 1;
+    
+    for(int i=0;i<60;++i){
+        printf("cooling t:%d ",i);
+        getTemp();
+        wait(1);
+        
+    }//1 min wait for cool
+}
+
+int stage1(void){ //upto 150 degree Celsius
+    float nowTemp = 0;
+    
+    oOven = 1;
+    oFan = 0;
+    
+    while(1){
+        printf("stage1 ");
+        nowTemp = getTemp();
+        if(nowTemp >= 150){
+            oOven = 0;//stop oven 
+            return 1;
+        }
+        wait(0.5);
+    }
+}
+
+int stage2(void){ //keep 180 degree Celsius for 100 sec
+    int time = 0;
+    float nowTemp = 0;
+
+    oOven = 0;
+    oFan = 1;
+    
+    for(time = 0; time < (100.0 / 0.3); ++time){
+        printf("stage2 time=%4.2lf",(time*0.3));
+        nowTemp = getTemp();
+        
+        if(nowTemp > 180.0){
+            oOven = 0;
+            oFan = 0;
+            wait(0.05);;
+            oOven = 0;
+            oFan = 1;
+            wait(0.1);
+            oOven = 0;
+            oFan = 0;
+            wait(0.05);;
+            oOven = 0;
+            oFan = 1;
+            wait(0.1);
+        }else{
+            oOven = 1;
+            oFan = 1;
+            wait(0.05);
+            oOven = 1;
+            oFan = 0;
+            wait(0.1);
+            oOven = 1;
+            oFan = 1;
+            wait(0.05);
+            oOven = 1;
+            oFan = 0;
+            wait(0.1);
+        }
+    }
+    
+ return 1;   
+}
+
+
+int stage3(void){ //Go to 260 degree Celsius!
+    int time = 0;
+    float nowTemp = 0;
+   
+    
+    oOven = 0;
+    oFan = 1;
+    while(1){
+        printf("stage3 ");
+        nowTemp = getTemp();
+        
+        if(nowTemp >= 260.0){
+            return 1;
+        }else{
+            oOven = 1;
+            oFan = 1;
+            wait(0.05);
+            oOven = 1;
+            oFan = 0;
+            wait(0.75);
+            
+        }
+    }
+    return -1;//error
+}
+
 int main() {
     //Initialise chip (starts internal timer)
     max1.initialise();
@@ -20,29 +151,17 @@
     //Float value to hold temperature returned
     float fvalue = 0;
     
-    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");
-                }else if(fvalue==2002){
-                    printf("Short to Ground");
-                }else if(fvalue==2004){
-                    printf("Short to VCC");
-                }
-            }else{
-                printf("Temperature is: %f\n\r", fvalue);
-            }
-     }
-        
-        //Heartbeat signal (not necessary)
-        myled = !myled;
-        
-        //Delay is not required, here simply for test program
-        wait(0.25);
-    }
+    //keepCool();
+    stage1();
+    stage1();
+    stage1();
+    stage2();
+    stage3();
+    stage3();
+    stage3();
+    keepCool();
+    keepCool();
+    keepCool();
+    printf("end of Process! Thank you for Using Techshop Reflow.\r\n");
+ 
 }