Revision 2:68f92f17d445, committed 2018-03-07

Comitter:

htran8

Date:

Wed Mar 07 04:39:44 2018 +0000

Parent:

1:b8231536af32

Commit message:

Rx Working;

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Control_Code_New.lib	Wed Mar 07 04:39:44 2018 +0000
@@ -0,0 +1,1 @@
+http://os.mbed.com/teams/TCTF-Team/code/Control_Code_LookUp/#b8231536af32

--- a/main.cpp	Thu Jan 11 22:51:35 2018 +0000
+++ b/main.cpp	Wed Mar 07 04:39:44 2018 +0000
@@ -3,7 +3,7 @@
 // DATE: SEPTEMBER 2017
 
 //PLAN TO HAVE 18 CHANNELS PER MBED
-//HARDWARE: 
+//HARDWARE:
 //2 X VALVE DRIVER BOARD
 //1 X MBED
 //1 X ADC MUX (16 CHN)
@@ -32,8 +32,8 @@
 
 //GLOBAL
 // pullUp resistance
-int rUp = 10000; 
-//LUT size 
+int rUp = 10000;
+//LUT size
 int sizeLUT = 34;
 
 //LOOK UP TABLE
@@ -92,12 +92,16 @@
 volatile int bufA_index;
 const int numChnls = 15;
 float chTemps[numChnls];
-float chGoalTemps[numChnls];  
+float chGoalTemps[numChnls];
 int chStatus[numChnls];
 int numSamples = 5;
 volatile bool dataRecieved = false;
 int chnlSel;
 char rxBuf[50];
+int tempup=1;
+
+#define RX_SOF     0x7B
+#define RX_EOF     0x7D
 
 void rxInterrupt(MODSERIAL_IRQ_INFO *info){
     gLed = 0;
@@ -106,31 +110,59 @@
     dataRecieved = true;
 }
 
+typedef struct {
+    unsigned char SOF_flag;
+    unsigned char data_len;
+    unsigned char chanDelim;
+    unsigned char chanID;
+    unsigned char tempDelim;    
+    unsigned char setTemp;
+    unsigned char chanStatDelim;
+    unsigned char chanStat;
+} HOST_PACKET;
+
 void parseRXData(){
     int pCount = 0; //count data collected
     int i = 0;
     int chnl;
     
-    string data = "";
+    HOST_PACKET *RxPkt;
 
-    //pc.printf("buff1 = <%s> \r\n", rxBuf);
+    chTemps[0] = 1;
+    
+    string data = "";
+    
+    RxPkt = (HOST_PACKET *)(rxBuf);
+    
     
+    pc.printf("fl = %02x\n", RxPkt->SOF_flag);
+    pc.printf("len = %02x\n", RxPkt->data_len);
+    pc.printf("ch = %02x\n", RxPkt->chanID);
+    pc.printf("temp = %02x\n", RxPkt->setTemp);
+    pc.printf("chanStat = %02x\n", RxPkt->chanStat);
+    
+    tempup = 1;
+    
+    // Exit if the packet does not contain correct header
+    if (RxPkt->SOF_flag != RX_SOF)
+        return;
+        
     while(pCount < 3){
         if(rxBuf[i] != '.'){
             data += rxBuf[i];
         }
         else{
-            pCount++; 
+            pCount++;
             if(pCount == 1){ //get channel
                 if((atoi(data.c_str()) < 0) || (atoi(data.c_str()) > 15)){
                     //check if channel is out of array index
-                    rLed = 0; 
+                    rLed = 0;
                 }
                 else{
                     chnl = atoi(data.c_str());
                     chnl = chnl-1;  //fix for array indexing
                     chnlSel = chnl;
-                    //pc.printf("CHANNEL: %i \r\n", chnl);
+                    //pc.printf("CHANNEL: %i \r\n", chnl);                    
                 }
             }
             else if(pCount == 2){ //get channel temperature
@@ -139,88 +171,104 @@
             }
             else if(pCount == 3){ //get channel status
                 chStatus[chnl] = atoi(data.c_str());
-                //pc.printf("STATUS: %i \r\n", atoi(data.c_str())); 
-            } 
-            data = "";  
+                //pc.printf("STATUS: %i \r\n", atoi(data.c_str()));
+            }
+            data = "";
         }
         i++;
     }
     //wait(30);
 }
 
-float getTemp(float ADC_val){ 
-    int i = 0;  
+float getTemp(float ADC_val){
+    int i = 0;
     while((i < sizeLUT) && (thermLUT[i].adc > ADC_val)){
-        i++;    
-    }  
-    
+        i++;
+    }
+
     float a = float(thermLUT[i-1].temp - thermLUT[i].temp);
     float b = float(thermLUT[i-1].adc - thermLUT[i].adc);
-    
+
     float m = a/b;
     float y = (m*(ADC_val - thermLUT[i-1].adc))+thermLUT[i-1].temp;
-    
+
     return y;
 }
 
 //16-bit ADC --> 2^16 = 65536
 void readTemps(){
     float a_0 = 0.0;
-    
+
+#if 0
     for(int i=0; i<numSamples; i++){
         a_0 += ain0.read_u16();
     }
-    
+
     a_0 = a_0/numSamples;
-    
+
     //printf("ADC VAL: %f \r\n", a_0);
 
-    chTemps[0] = getTemp(a_0); 
-    
+    chTemps[0] = getTemp(a_0);
+#else
+    a_0 = .2;
+    if (chTemps[0] >= 6)
+        tempup = 0;
+    if (chTemps[0] <= 0)
+        tempup = 1;
+
+    if (tempup)
+        chTemps[0] += a_0;
+    else
+        chTemps[0] -= a_0;
+#endif
+
     //send current temperature of selected channel to GUI for display
     pc.printf("%f \r\n", chTemps[chnlSel]);
-    
+
     wait(1.5);
-    
+
     //printf("TEMPERATURE (C): %f \r\n", chTemps[0]);
-    
+
     //printf("TEMPERATURE (C): 15 \r\n");
-    
+
     //printf("TEMPERATURE (C): 15 \r\n");
 }
 
 
-    
+
 
 int main() {
     //printf("Main Entered.\n");
     //turn off LEDs
     rLed = 1;
     gLed = 1;
-    
+
     //configure MCP23017
     mcp.config(0,0,0);
-    
+
     //
     pc.baud(9600);
-    pc.autoDetectChar('E');
+    //pc.autoDetectChar(RX_EOF);
+    pc.autoDetectChar('\n');
     pc.attach(&rxInterrupt, MODSERIAL::RxAutoDetect);
-        
+
     while(1) {
         //read temperatures
         readTemps();
-        
+
         //buffer for noise
         double hyst = 0.2;
-        
+
         //check if we recieved data/need to update TCTF data
         if(dataRecieved){
             dataRecieved = false;
+            pc.printf("Count = %d\n", pc.rxBufferGetCount());
             pc.move(rxBuf, 50);
-            pc.rxBufferFlush();
             parseRXData();
+            pc.rxBufferFlush();
+            
         }
-                
+
         //Control loop:
         //Loop through all channels and control
         //chiller = 18C
@@ -231,7 +279,7 @@
                     //Turn on chiller
                     //printf("CHILLER ON \r\n");
                     mcp.config(0,0,0);
-                    mcp.write_bit(1, 8); 
+                    mcp.write_bit(1, 8);
                     //printf("HEATER OFF \r\n");
                     mcp.write_bit(0, 9);
                 }
@@ -239,7 +287,7 @@
                     //turn off chiller
                     //printf("CHILLER OFF \r\n");
                     mcp.config(0,0,0);
-                    mcp.write_bit(0, 8); 
+                    mcp.write_bit(0, 8);
                     //printf("HEATER ON  \r\n");
                     mcp.write_bit(1, 9);
                 }
@@ -247,12 +295,12 @@
                     //turn off chiller
                     //printf("CHILLER OFF \r\n");
                     mcp.config(0,0,0);
-                    mcp.write_bit(0, 8); 
+                    mcp.write_bit(0, 8);
                     //printf("HEATER OFF \r\n");
                     mcp.write_bit(0, 9);
                 }
-                
-                
+
+
             }
             wait(0);
         }