Diff: main.cpp

Revision:

5:f22f960f804b

Parent:

4:ec3f71ef8732

--- a/main.cpp	Sat Nov 07 09:52:57 2015 +0000
+++ b/main.cpp	Sun Dec 13 12:59:49 2015 +0000
@@ -12,20 +12,24 @@
 const int addr1 = (0x20<<1|0);
 const int addr2 = (0x20<<1|1);
 //Timer Siv ;
+int FLAG = 1 ;
 I2C master (D14,D15);
 InterruptIn PYLD_I2C_Int(PTA13);
 //gitalIn test(PTA13);
 SPISlave device(PTD6, PTD7, PTD5,PTD4 ); // mosi, miso, sclk, ssel --> using SPI1
 InterruptIn PYLD_SPI_Interrupt(PTD2);
 DigitalOut flash(LED4);
-int payloadBins = 3096;
+int payloadBins = 1024;
 float Stability_delay = 0.005228 ;// 0.005228
+#define CRC16                   0x8010
+
+uint16_t CRC_16_Calc(const char *data, uint16_t size);
 
 Serial pc(USBTX, USBRX); // tx, rx  --> serial feedback for debug
 
 void payloadProcess() {
   
-   
+   flash = !flash;
     //wait(Stability_delay); // wait after interrupt for stability
     unsigned short scienceRawPacket[payloadBins];
     
@@ -49,6 +53,10 @@
 int dt3,pia = 0;
 bool f = 1;
 char rdata[140],ta2;
+int loop=1;
+char *writedata = new char;
+char data = 1,data1 = 2, data2 = 3,  test[136] ; 
+char pia1[13] , siv[13] ;
 void readds()
 {   
 
@@ -59,7 +67,7 @@
      
              //while(!f)
              //{    
-               f=  master.read(addr1,rdata,135);
+               f=  master.read(addr1,siv,13);
              //}
     // master.start();
         //for(int i = 0;i<26;i++)
@@ -85,9 +93,95 @@
                
 }   
  
-int loop=1;
-char *writedata = new char;
-char data = 1,data1 = 2, data2 = 3,  test[136] ; 
+
+
+void INIT_TC_TEMP (void)
+{
+    
+    uint16_t CRC_VALUE = 0 ;
+    
+    pia1[0]    = 123  ;
+    pia1[1]    = 0x3F ;
+    pia1[2]    = 0x81 ;
+    pia1[3]    = 0xD0 ;
+    pia1[4]    = 0x00 ;
+    pia1[5]    = 0x00 ;
+    pia1[6]    = 0x00 ;
+    pia1[7]    = 0x00 ;
+    pia1[8]    = 0x00 ;
+    CRC_VALUE = CRC_16_Calc(pia1,9) ;
+    pia1[9]    = (char)((CRC_VALUE >> 8) & 0xff);
+    pia1[10]   = (char)((CRC_VALUE >> 0) & 0xff);
+    
+    
+}
+   
+int CHECK_TM (void)
+{
+        uint16_t CRC_Value = 0 , check = 0;
+        CRC_Value = CRC_Value | ((uint16_t) siv[11]) ;
+        CRC_Value = CRC_Value << 8;
+        CRC_Value = CRC_Value | ((uint16_t) siv[12]) ;
+        if (CRC_Value == CRC_16_Calc (siv,11))
+        {
+            check++;
+        }
+        else
+        {
+            return(10);
+        }
+        if ( siv[1] == 123 )
+        {
+            check++;
+        }
+        else
+        {
+            return (9);
+        }
+        if ( siv[3] == 192 )
+        {
+            check ++ ;
+        }
+        else
+        {
+            return (8);
+        }
+        
+        FLAG = 0 ;
+        return (check) ;
+}
+
+uint16_t CRC_16_Calc(const char *data, uint16_t size)
+{
+    uint16_t CRC_OUT = 0;
+    int bits_read = 0, bit_flag;
+
+
+
+    while(size > 0)
+    {
+        bit_flag = CRC_OUT >> 15;
+
+        /* Get next bit: */
+        CRC_OUT <<= 1;
+        CRC_OUT |= (*data >> (7 - bits_read)) & 1;
+
+        /* Increment bit counter: */
+        bits_read++;
+        if(bits_read > 7)
+        {
+            bits_read = 0;
+            data++;
+            size--;
+        }
+
+        /* Cycle check: */
+        if(bit_flag)
+            CRC_OUT ^= CRC16;
+
+    }
+    return CRC_OUT;
+}
 
  
 void FUNC_MASTER_WRITE(void)
@@ -106,7 +200,7 @@
      while(loop)
      {
          
-         bool check = (bool)master.write(addr,test,135);
+         bool check = (bool)master.write(addr,pia1,11);
         // bool check = (bool)master.write(addr,&test[3],1,false);
          // check = (bool)master.write(addr,&test[4],1);
          
@@ -185,6 +279,7 @@
     pc.printf("Example code demonstarting Payload - CDMS SPI & I2C communication!\r\n");
     PYLD_SPI_Interrupt.rise(&payloadProcess);
     PYLD_I2C_Int.rise(&readds);
+    INIT_TC_TEMP();
     
     while(1)
     {
@@ -192,11 +287,54 @@
     wait(1);
     //dt1 = rdata[0] ;
     //dt2 = rdata[1] ;
-    for(P = 0 ; P < 135 ; P++ )
+    for(P = 0 ; P < 13 ; P++ )
     {
-    pc.printf("Temperature %d \n\r",rdata[P]);
-    }
-    pc.printf(" I2C data register %d \n", I2C1 -> S);
+    pc.printf("Temperature %d \n\r",siv[P]);
+   }
+  // while ( FLAG == 1)
+  // {}
+        pc.printf(" Packect Recieved \n \r");
+        
+        if( CHECK_TM() == 3 )
+        {
+            pc.printf(" ACK Recieved \n \r");
+        }
+        else if ( CHECK_TM() == 10 )
+        {
+            pc.printf("Error Code 10 : CRC_FAIL \n \r" );
+        }
+        else if ( CHECK_TM() == 9 )
+        {
+            pc.printf("Error Code 9 : PSC FAIL \n \r" );
+        }
+        else if ( CHECK_TM() == 8 )
+        {
+            pc.printf("Error Code 8 : NACK ACK FAIL \n \r" );
+        }
+ wait (1) ;
+    
+     for(P = 0 ; P < 13 ; P++ )
+   {
+    pc.printf("Temperature %d \n\r",siv[P]);
+   }
+    
+    pc.printf(" Packect Recieved \n \r");
+    uint16_t CRC_Value = 0 ;
+        CRC_Value = CRC_Value | (siv[11]) ;
+        CRC_Value = CRC_Value << 8;
+        CRC_Value = CRC_Value | (siv[12]) ;
+        
+        if (CRC_Value == CRC_16_Calc (siv,11))
+        {
+            pc.printf("CRC_PASS Temperature of PYLD uC is : %d \n \r",siv[3]);
+        }
+        else 
+        {
+            pc.printf("Data CRC_Fail \n \r");
+        }
+    
+   
+    pc.printf(" I2C data register %d \n \r", I2C1 -> S);
    // pc.printf("Temperature %d \n\r",dt1);
    // pc.printf("Temperature2 %d \n\r",dt2);
     //pc.printf("Temperature3 %d \n\r",dt3);