Revision 3:6c1ed31073f0, committed 2015-01-31

Comitter:

sakthipriya

Date:

Sat Jan 31 14:14:01 2015 +0000

Parent:

2:c75bb488d17c

Commit message:

i2c while removed working

Changed in this revision

--- a/main.cpp	Sat Dec 20 06:23:00 2014 +0000
+++ b/main.cpp	Sat Jan 31 14:14:01 2015 +0000
@@ -8,6 +8,10 @@
 InterruptIn data_ready(D10);
 
 int reset;
+Timer t;
+Timer t1;
+Timer t2;
+Timer t3;
 
 typedef struct
 {
@@ -21,58 +25,28 @@
 Thread * ptr_t_i2c;
 void FUNC_I2C_MASTER_FSLAVE(char * data,int length)
 {
-    //printf("press backspace for master to start \n\r");
-    //while(1){
-            //interrupt = 0;
-      //  if(pc.getc()=='z'){
-            //wait(0.5);
-            interrupt = 1;
-            printf("\nMaster executed\n");
+    
             
-          
             bool ack0 =true; 
-            bool loopvariable0 =true;
-            //char *data =  new char;
-            //*data = 'b';
-           
-           
             
-             master.frequency(100000);                       //set clock frequency
-             //master.start();
-            /*while(write2slave)
-            {  *writedata = pc.getc();
-            wait(0.5);
-              
-                printf("master clk freq setup and addressing slave\n\r");
-                master.start();                                 //initiating the data transfer
-                master_status_write = (bool) master.write(addr|0x00,writedata,1);
-                if(master_status_write==0)
-                {
-                    printf("master has written %c to slave\n\r",*writedata);
-                    write2slave=false;
-                }
-                    
-                    
-             }*/
-             
-            while(ack0 && data_ready ==1 )
-            {
-                //printf("2 master clk freq setup and addressing slave\n\r");
-                
-                master.start();                                 //initiating the data transfer
-                ack0 =  master.read(addr,data,length);
-            }
+            interrupt = 1;
+            t1.start();
+            //wait_ms(20);
+            ack0 =  master.read(addr|1,data,length);
+            t1.stop();
+            
+            
             if(!ack0)
             {
                     printf("\n master has read %s from slave\n\r",data);
-                    loopvariable0=false;
+                    
             }
                 //master.stop();
+            printf("\n%d\n\r",t1.read_us());
+            t1.reset();
             
-            //printf("done\n\r");
-            //delete data;
             interrupt=0;
-            printf("\n blahblah\n\r");
+           
 }
 
 typedef struct {
@@ -91,7 +65,7 @@
 } hk_data;
 hk_data decode_data;
 
-void TC_DECODE(char *data_hk)                  //getting the structure back from hk data sent by bae
+/*void TC_DECODE(char *data_hk)                  //getting the structure back from hk data sent by bae
 {
     for(int i=0;i<=7;i++)
     {
@@ -127,7 +101,7 @@
     printf("\n voltage %s\n\r",decode_data.Voltage);
     printf("\n current  %s\n\r",decode_data.Current);
     printf("\n faultpoll %c\n\r",decode_data.faultpoll);
-}
+}*/
 
             
 void T_I2C_MASTER_FSLAVE(void const *args)
@@ -144,7 +118,7 @@
         i2c_data_r->length = 25;
         i2c_data_receive.put(i2c_data_r);*/
         printf("\n Data received from slave is %s\n\r",data_receive);
-        TC_DECODE(data_receive);
+        //TC_DECODE(data_receive);
     }
 }
 
@@ -166,6 +140,9 @@
      
     char data = pc.getc();
     interrupt = 1;
+    t.start();
+    t3.start();
+    wait_ms(20);
     i2c_data * i2c_data_s = i2c_data_send.alloc();
     i2c_data_s->data = data;
     i2c_data_s->length = 1;
@@ -179,21 +156,22 @@
             {
                 i2c_data *i2c_data_s = (i2c_data*)evt.value.p;
                 writedata = i2c_data_s -> data;
-                master.frequency(100000);                        //set clock frequency
-                while(write2slave && interrupt ==1 )
-                {                
-                printf("master clk freq setup and addressing slave\n\r");
-                master.start();                                 //initiating the data transfer
+                t.stop();
+                //t3.start();         
                 master_status_write = (bool) master.write(addr|0x00,&writedata,1);
+                t3.stop();
                 if(master_status_write==0)
                     {
                     printf("master has written %c to slave\n\r",writedata);
                     write2slave=false;
                     }
                 i2c_data_send.free(i2c_data_s);
-                }
+                printf("\n%d\n",t.read_us());
+                t.reset();
+                printf("\n%d\n",t3.read_us());
+                t3.reset();
             }
-            interrupt = 0;
+    interrupt = 0;
 }
 
     
@@ -204,6 +182,7 @@
     ptr_t_i2c = new Thread(T_I2C_MASTER_FSLAVE);
     data_ready.rise(&FUNC_INT);
     printf("\nstarted master\n"); 
+     master.frequency(100000);      
     while(1)
     { //Thread::wait(9000);
     //interrupt = 1;