Diff: main.cpp

Revision:

0:545d40142697

Child:

1:5ed5d1e46e92

diff -r 000000000000 -r 545d40142697 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat Dec 06 13:01:02 2014 +0000
@@ -0,0 +1,34 @@
+#include "mbed.h"
+
+#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()
+{
+    while(1)
+    {
+         char* command= new char;
+         printf("\ncommand from com \n\r");
+         m2s_interrupt=0;
+         *command=pc.getc();                //characters 0 to 4 are assumed to be commands
+         printf("\n command detected\n\r");
+         m2s_interrupt =1; 
+         bool write_loop =1; 
+         bool master_status_write = true;
+         while(write_loop){
+                master.frequency(100000);                       //set clock frequency
+                master.start();                                 //initiating the data transfer
+                master_status_write = (bool) master.write(addr|0x00,command,1);
+                if(!master_status_write){
+                    printf("command %c sent to slave\n\r",*command);
+                    write_loop=false;
+                }
+        }
+        delete command;
+    }
+}
\ No newline at end of file