Diff: main.cpp

Revision:

0:cdc20d6056de

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Dec 05 10:35:38 2014 +0000
@@ -0,0 +1,45 @@
+#include "mbed.h"
+
+const int addr = 0x20;                     //slave address 
+I2C master (D14,D15);                      //configure pins p27,p28 as I2C master
+Serial pc (USBTX,USBRX);
+void main()
+{
+    printf("press backspace for master to start \n\r");
+    while(1){
+        if(pc.getc()==8){
+            bool master_status_write = true;
+            bool master_status_read = true;
+            char* data_send =  new char;
+            *data_send = 'b';
+            char *data_rec =  new char;
+            *data_rec = 'b';
+            bool write_loop = true;
+            bool read_loop = true;
+            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){
+                    printf("3 master has written %c to slave\n\r",*data_send);
+                    write_loop=false;
+                }
+            }
+            printf("done\n\r");
+            
+            
+            while(read_loop){
+                printf("4 master clk freq setup and addressing slave\n\r");
+                master.frequency(100000);                       //set clock frequency
+                master.start();                                 //initiating the data transfer
+                master_status_read = (bool) master.read(addr,data_rec,1);
+                if(!master_status_read){
+                    printf("5 master has read %c from slave\n\r",*data_rec);
+                    read_loop=false;
+                }
+            }
+            printf("done\n\r");
+        }
+    }
+}           
\ No newline at end of file