Diff: main.cpp

Revision:

1:d4903940ac9b

Parent:

0:b2ba86a47999

Child:

2:385ef26be324

diff -r b2ba86a47999 -r d4903940ac9b main.cpp
--- a/main.cpp	Sat Dec 06 07:31:05 2014 +0000
+++ b/main.cpp	Sat Dec 06 13:25:46 2014 +0000
@@ -1,44 +1,51 @@
 #include "mbed.h"
 
-#define interrupt D8
+#define interrupt D9
 
 const int addr = 0x20;                     //slave address 
 I2C master (D14,D15);                      //configure pins p27,p28 as I2C master
 Serial pc(USBTX,USBRX);
 DigitalOut m2s_interrupt(interrupt);
 
+
+
 int main()
-{
+{   
+    
     char* data_send =  new char;
     *data_send = 'b';
      char *data_rec =  new char;
     *data_rec = 'b';
-    m2s_interrupt=0;
+    bool master_status_write = true;
+    master.start();
+    master_status_write = (bool) master.write(addr|0x00,data_send,1);
+    bool write_loop;
+    //m2s_interrupt=0;
     while(1){
-      bool write_loop = true;
+      write_loop = true;
      //printf("m2s_interrupt is 0");
      printf("\npress a for master to start \n\r");
      m2s_interrupt=0;
     if(pc.getc()=='a'){
             printf("\n backspace detected\n\r");
             m2s_interrupt =1;          //hardware interrupt from master to slave  
-            wait(10);         
-            bool master_status_write = true;
+           // wait(10);         
+             master_status_write = true;
             //bool master_status_read = true;
             
             
            
            // bool read_loop = true;
-            /*while(write_loop){
+            while(write_loop ){
                 printf("2 master clk freq setup and addressing slave\n\r");
                 master.frequency(100000);                       //set clock frequency
                 master.start();                                 //initiating the data transfer
                 master_status_write = (bool) master.write(addr|0x00,data_send,1);
-                if(!master_status_write){
+                if(master_status_write==0){
                     printf("3 master has written %c to slave\n\r",*data_send);
                     write_loop=false;
                 }
-            }*/
+            }
             
             printf("done\n\r");
         }}