mille feuille / Mbed 2 deprecated TechshopReflow

TechshopReflow

Dependencies:   MAX31855 mbed

Fork of max31855Sample by Joe Staton

main.cpp@2:d3e63bd08832, 2017-02-21 (annotated)

Committer:
Info
Date:
Tue Feb 21 11:37:49 2017 +0000
Revision:
2:d3e63bd08832
Parent:
1:6bed4f6f7b35
Child:
3:adc7ee7569d2
RevA 2017 02 21

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Stavlin 0:c50a2801c243 1 #include "mbed.h"
Stavlin 0:c50a2801c243 2 #include "max31855.h"
Stavlin 0:c50a2801c243 3
Stavlin 0:c50a2801c243 4 DigitalOut myled(LED1);
Stavlin 0:c50a2801c243 5
Stavlin 0:c50a2801c243 6 //----------------------------------------------------------
Stavlin 0:c50a2801c243 7 //SPI Interfaces
Info 2:d3e63bd08832 8 //SPI testSPI(p11,p12,p13);//MOSI MISO SCK for LPC1768
Info 2:d3e63bd08832 9 SPI testSPI(P0_26,P0_25,P0_24);//MOSI MISO SCK for LPC824MAX
Stavlin 0:c50a2801c243 10 //----------------------------------------------------------
Stavlin 0:c50a2801c243 11
Stavlin 0:c50a2801c243 12 //----------------------------------------------------------
Stavlin 0:c50a2801c243 13 //Thermocouples
Info 2:d3e63bd08832 14 //max31855 max1(testSPI,p21);
Info 2:d3e63bd08832 15 max31855 max1(testSPI,P0_15);//Digital Out LPC824MAX
Info 2:d3e63bd08832 16 //----------------------------------------------------------
Info 2:d3e63bd08832 17
Info 2:d3e63bd08832 18 //----------------------------------------------------------
Info 2:d3e63bd08832 19 //Reflow Oven
Info 2:d3e63bd08832 20 DigitalOut oOven(P0_27);
Info 2:d3e63bd08832 21 //FUN
Info 2:d3e63bd08832 22 DigitalOut oFan(P0_13);
Info 2:d3e63bd08832 23
Stavlin 0:c50a2801c243 24 //----------------------------------------------------------
Stavlin 0:c50a2801c243 25
Info 2:d3e63bd08832 26 float getTemp(void){
Info 2:d3e63bd08832 27 float fvalue = 0.0;
Info 2:d3e63bd08832 28 if (max1.ready()==1){
Info 2:d3e63bd08832 29 //Get the reading
Info 2:d3e63bd08832 30 fvalue = max1.read_temp();
Info 2:d3e63bd08832 31 //fvalue = fvalu;
Info 2:d3e63bd08832 32 //fvalue = fvalue *2 -160.0; //calibration here
Info 2:d3e63bd08832 33 //fvalue = fvalue; //calibration here
Info 2:d3e63bd08832 34 if((fvalue >= 2000)&&(fvalue <= 2010)){
Info 2:d3e63bd08832 35 printf("Plobe error : maybe wire is cut.\r\n");
Info 2:d3e63bd08832 36 }else{
Info 2:d3e63bd08832 37 printf("Temp: %4.2f\n\r", fvalue);
Info 2:d3e63bd08832 38 myled = !myled;
Info 2:d3e63bd08832 39 return fvalue;
Info 2:d3e63bd08832 40 }
Info 2:d3e63bd08832 41 }else{
Info 2:d3e63bd08832 42 printf("Can not get Temp\n\r");
Info 2:d3e63bd08832 43 return -1;//error can not get temp
Info 2:d3e63bd08832 44
Info 2:d3e63bd08832 45 }
Info 2:d3e63bd08832 46 }
Info 2:d3e63bd08832 47
Info 2:d3e63bd08832 48 void keepCool(void){
Info 2:d3e63bd08832 49 oOven = 0;
Info 2:d3e63bd08832 50 oFan = 1;
Info 2:d3e63bd08832 51
Info 2:d3e63bd08832 52 for(int i=0;i<60;++i){
Info 2:d3e63bd08832 53 printf("cooling t:%d ",i);
Info 2:d3e63bd08832 54 getTemp();
Info 2:d3e63bd08832 55 wait(1);
Info 2:d3e63bd08832 56
Info 2:d3e63bd08832 57 }//1 min wait for cool
Info 2:d3e63bd08832 58 }
Info 2:d3e63bd08832 59
Info 2:d3e63bd08832 60 int stage1(void){ //upto 150 degree Celsius
Info 2:d3e63bd08832 61 float nowTemp = 0;
Info 2:d3e63bd08832 62
Info 2:d3e63bd08832 63 oOven = 1;
Info 2:d3e63bd08832 64 oFan = 0;
Info 2:d3e63bd08832 65
Info 2:d3e63bd08832 66 while(1){
Info 2:d3e63bd08832 67 printf("stage1 ");
Info 2:d3e63bd08832 68 nowTemp = getTemp();
Info 2:d3e63bd08832 69 if(nowTemp >= 150){
Info 2:d3e63bd08832 70 oOven = 0;//stop oven
Info 2:d3e63bd08832 71 return 1;
Info 2:d3e63bd08832 72 }
Info 2:d3e63bd08832 73 wait(0.5);
Info 2:d3e63bd08832 74 }
Info 2:d3e63bd08832 75 }
Info 2:d3e63bd08832 76
Info 2:d3e63bd08832 77 int stage2(void){ //keep 180 degree Celsius for 100 sec
Info 2:d3e63bd08832 78 int time = 0;
Info 2:d3e63bd08832 79 float nowTemp = 0;
Info 2:d3e63bd08832 80
Info 2:d3e63bd08832 81 oOven = 0;
Info 2:d3e63bd08832 82 oFan = 1;
Info 2:d3e63bd08832 83
Info 2:d3e63bd08832 84 for(time = 0; time < (100.0 / 0.3); ++time){
Info 2:d3e63bd08832 85 printf("stage2 time=%4.2lf",(time*0.3));
Info 2:d3e63bd08832 86 nowTemp = getTemp();
Info 2:d3e63bd08832 87
Info 2:d3e63bd08832 88 if(nowTemp > 180.0){
Info 2:d3e63bd08832 89 oOven = 0;
Info 2:d3e63bd08832 90 oFan = 0;
Info 2:d3e63bd08832 91 wait(0.05);;
Info 2:d3e63bd08832 92 oOven = 0;
Info 2:d3e63bd08832 93 oFan = 1;
Info 2:d3e63bd08832 94 wait(0.1);
Info 2:d3e63bd08832 95 oOven = 0;
Info 2:d3e63bd08832 96 oFan = 0;
Info 2:d3e63bd08832 97 wait(0.05);;
Info 2:d3e63bd08832 98 oOven = 0;
Info 2:d3e63bd08832 99 oFan = 1;
Info 2:d3e63bd08832 100 wait(0.1);
Info 2:d3e63bd08832 101 }else{
Info 2:d3e63bd08832 102 oOven = 1;
Info 2:d3e63bd08832 103 oFan = 1;
Info 2:d3e63bd08832 104 wait(0.05);
Info 2:d3e63bd08832 105 oOven = 1;
Info 2:d3e63bd08832 106 oFan = 0;
Info 2:d3e63bd08832 107 wait(0.1);
Info 2:d3e63bd08832 108 oOven = 1;
Info 2:d3e63bd08832 109 oFan = 1;
Info 2:d3e63bd08832 110 wait(0.05);
Info 2:d3e63bd08832 111 oOven = 1;
Info 2:d3e63bd08832 112 oFan = 0;
Info 2:d3e63bd08832 113 wait(0.1);
Info 2:d3e63bd08832 114 }
Info 2:d3e63bd08832 115 }
Info 2:d3e63bd08832 116
Info 2:d3e63bd08832 117 return 1;
Info 2:d3e63bd08832 118 }
Info 2:d3e63bd08832 119
Info 2:d3e63bd08832 120
Info 2:d3e63bd08832 121 int stage3(void){ //Go to 260 degree Celsius!
Info 2:d3e63bd08832 122 int time = 0;
Info 2:d3e63bd08832 123 float nowTemp = 0;
Info 2:d3e63bd08832 124
Info 2:d3e63bd08832 125
Info 2:d3e63bd08832 126 oOven = 0;
Info 2:d3e63bd08832 127 oFan = 1;
Info 2:d3e63bd08832 128 while(1){
Info 2:d3e63bd08832 129 printf("stage3 ");
Info 2:d3e63bd08832 130 nowTemp = getTemp();
Info 2:d3e63bd08832 131
Info 2:d3e63bd08832 132 if(nowTemp >= 260.0){
Info 2:d3e63bd08832 133 return 1;
Info 2:d3e63bd08832 134 }else{
Info 2:d3e63bd08832 135 oOven = 1;
Info 2:d3e63bd08832 136 oFan = 1;
Info 2:d3e63bd08832 137 wait(0.05);
Info 2:d3e63bd08832 138 oOven = 1;
Info 2:d3e63bd08832 139 oFan = 0;
Info 2:d3e63bd08832 140 wait(0.75);
Info 2:d3e63bd08832 141
Info 2:d3e63bd08832 142 }
Info 2:d3e63bd08832 143 }
Info 2:d3e63bd08832 144 return -1;//error
Info 2:d3e63bd08832 145 }
Info 2:d3e63bd08832 146
Stavlin 0:c50a2801c243 147 int main() {
Stavlin 0:c50a2801c243 148 //Initialise chip (starts internal timer)
Stavlin 0:c50a2801c243 149 max1.initialise();
Stavlin 0:c50a2801c243 150
Stavlin 0:c50a2801c243 151 //Float value to hold temperature returned
Stavlin 0:c50a2801c243 152 float fvalue = 0;
Stavlin 0:c50a2801c243 153
Info 2:d3e63bd08832 154 //keepCool();
Info 2:d3e63bd08832 155 stage1();
Info 2:d3e63bd08832 156 stage1();
Info 2:d3e63bd08832 157 stage1();
Info 2:d3e63bd08832 158 stage2();
Info 2:d3e63bd08832 159 stage3();
Info 2:d3e63bd08832 160 stage3();
Info 2:d3e63bd08832 161 stage3();
Info 2:d3e63bd08832 162 keepCool();
Info 2:d3e63bd08832 163 keepCool();
Info 2:d3e63bd08832 164 keepCool();
Info 2:d3e63bd08832 165 printf("end of Process! Thank you for Using Techshop Reflow.\r\n");
Info 2:d3e63bd08832 166
Stavlin 0:c50a2801c243 167 }