Revision 5:bf1f3504cd9d, committed 2015-05-17

Comitter:

sakthipriya

Date:

Sun May 17 06:18:41 2015 +0000

Parent:

4:65a2d0b97d01

Commit message:

cdms i2c working - but not working after hk data is sent

Changed in this revision

--- a/main.cpp	Thu May 14 10:22:50 2015 +0000
+++ b/main.cpp	Sun May 17 06:18:41 2015 +0000
@@ -10,10 +10,10 @@
 
 Serial pc(USBTX, USBRX);
 
-InterruptIn interrupt(PIN97);                                      //I2c interrupt from CDMS
-DigitalOut data_ready(PIN90);                                     //Sends interrupt to CDMS
-//InterruptIn interrupt(D9);                                      //I2c interrupt from CDMS
-//DigitalOut data_ready(D10);   
+//InterruptIn interrupt( PIN97);                                      //I2c interrupt from CDMS
+//DigitalOut data_ready(PIN90);                                     //Sends interrupt to CDMS
+InterruptIn interrupt(D9);                                      //I2c interrupt from CDMS
+DigitalOut data_ready(D10);   
 
 Timer t;                                                        //To know the time of execution each thread
 Timer t1;                                                       //To know the time of entering  of each thread
@@ -21,12 +21,19 @@
 Timer t3;                                                       //To know the time taken by i2c read/write function
 Timer i1;
 Timer i2;
+Timeout bea_timeout ;                                           // timeout used to revive beacon 10 min after it is switched off
 /*****************************************************************Threads USed***********************************************************************************/
 Thread *ptr_t_hk_acq;              //pointer:::::::::to read state of one thread from another
 Thread *ptr_t_acs;
 Thread *ptr_t_bea;
 Thread *ptr_t_i2c;
-Thread *ptr_t_wdt;  
+Thread *ptr_t_wdt;
+
+/****************************************************************FUNC_HEADER**********************************************************************************/
+void FUNC_I2C_INT();
+void FUNC_I2C_IR2CDMS();
+void FUNC_I2C_TC_EXECUTE (char command);
+void FUNC_BEA_TIMEOUT();
 
 /****************************************************************configuring I2c*********************************************************************************/
 I2CSlave slave(PIN1,PIN2);                                        //configuring pins p27, p28 as I2Cslave
@@ -202,36 +209,45 @@
 void FUNC_I2C_WRITE2CDMS(char *data, int length=1)                  /// BAE to CDMS read/write
 {
     int slave_status = 1;
-    int inter_test = interrupt;
-    int slr = slave.receive();
-    wait_ms(20);
+    //int inter_test = interrupt;
+    //int slr = slave.receive();
+    //wait_ms(20);
     //printf("\n\r time is %d\n",t2.read_us());
     //if(interrupt ==1)
     //{ 
-        //printf("\n\r slave status %d",slave.receive());
-        //t2.stop();
+       wait_us(100);
+        int slave_r = slave.receive();
+        printf("\n%d\r",slave_r);
+   //       printf("\n%d\r",slave.receive()); 
+        t2.stop();
+       // wait_ms(2);
         if(slave.receive() == 0)                    // 0 when not ack refer doc.
-            t2.stop();
+            //t2.stop();
         if( slave.receive()==1) // slave to master
         {
-            t2.stop();
+          //  t2.stop();
             t3.start();
             slave_status=slave.write(data,length);              // ack to
+            
             t3.stop();
+            slave.stop();  
+            //printf("\n\r slave status %d",slave.receive());
         }
-        else if( slave.receive()==3 ||  slave.receive()==2)     // master to slave
+        if( slave.receive()==3 ||  slave.receive()==2)     // master to slave
         {
-            t2.stop();
+            //t2.stop();
             t3.start();
             slave_status=slave.read(data,length);
             t3.stop();
+            slave.stop();
+            //printf("\n\r slave status %d",slave.receive());
         }
     //}
   //  printf("\n\r time taken to receive intrpt 4m cdms %d",i1.read_us());
     //i1.reset();
-    printf("\n\r slave status %d %d %d",slave.receive(),t2.read_us(),t3.read_us());
+    printf("\n\r slave status %d %d ",t2.read_us(),t3.read_us());
    // printf("\n\r time taken from interrupt to reach i2c fn %d",t2.read_us());
-    t2.stop();
+    //t2.stop();
     t2.reset();
     //printf("\n\r time to execute i2c function %d",t3.read_us());
     t3.reset();
@@ -255,7 +271,7 @@
             i2c_data_r->length = 1;
             i2c_data_receive.put(i2c_data_r);*/
             printf("\n\r Data received from CDMS is %c \n\r",data_receive);
-            FUNC_I2C_TC_EXECUTE(data_receive);                       //  telecommand      // This has to be done from a differen thread 
+           // FUNC_I2C_TC_EXECUTE(data_receive);                       //  telecommand      // This has to be done from a differen thread 
             
         }
         else if(i2c_status ==1)
@@ -336,7 +352,9 @@
 //------------------------------------------------------------------------------------------------------------------------------------------------
 void FUNC_I2C_TC_EXECUTE (char command)  
 { switch(command)
-   {   case '0' : printf("command 0 executed");
+   {   case '0' : printf("command 0 executed");      // assuming telecommand to switch of beacon 
+                  beac_flag = 1;
+                  bea_timeout.attach(&FUNC_BEA_TIMEOUT, 600);
        break;
        case '1' : printf("command 1 executed");
        break;
@@ -344,6 +362,11 @@
        break;
        case '3' : printf("command 3 executed");
     }
+}
+
+void FUNC_BEA_TIMEOUT()
+{
+   beac_flag = 0;
 }  
    
 
@@ -363,8 +386,8 @@
     
     if(schedcount%1==0)
     {
-     //ptr_t_acs -> signal_set(0x1);
-     //ptr_t_wdt -> signal_set(0x5);
+      // ptr_t_acs -> signal_set(0x1);
+      // ptr_t_wdt -> signal_set(0x5);
     }
     if(schedcount%2==0)
     {
@@ -376,8 +399,7 @@
     {
         if(beac_flag==0)
         {
-            
-          //ptr_t_bea -> signal_set(0x3);
+            //ptr_t_bea -> signal_set(0x3);
         }
     }
     schedcount++;