Diff: i2c.cpp

Revision:

0:d6e3d1e21484

Child:

3:0c3f7c3fabc9

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/i2c.cpp	Mon Jun 15 12:16:59 2015 +0000
@@ -0,0 +1,76 @@
+#include "mbed.h"
+//#include "pin_config.h"
+#include "i2c.h"
+
+Serial gc(USBTX,USBRX);
+InterruptIn irpt_4m_slv(D12);                                      //I2c interrupt from CDMS
+DigitalOut irpt_2_slv(D11);                                        //I2C interrupt to CDMS
+I2C master(PTE0,PTE1);
+
+
+
+const int addr = 0x20;                                            //slave address 
+Timer t;
+
+
+void FCTN_I2C_READ(char *data, int length )
+{
+    bool read_ack = true;
+    irpt_2_slv = 0; 
+    t.start();
+    read_ack=master.read(addr|1,data,length);
+    t.stop();
+    if(read_ack == 0)
+        printf("\r\n\rData received from BAE is %s \r\n",data);
+    else
+    {
+        printf("\r\n \r data not received \r\n");
+        master.stop();
+    }
+    irpt_2_slv = 1;
+    printf("\r\n\r %d \r\n",t.read_us());
+    t.reset();
+}
+
+void FCTN_I2C_WRITE(char *data,int length)
+{
+    bool write_ack = true;
+    irpt_2_slv = 0;
+    t.start();
+    write_ack=master.write(addr|0x00,data,length);
+    t.stop();
+    if(write_ack == 0)
+        printf("\r\n\rData sent to BAE is %s \r\n",data);
+    else 
+    {
+        printf("\r\n\r data not sent \r\n");
+        master.stop();
+    }
+    irpt_2_slv = 1;
+    printf("\r\n\r %d \r\n",t.read_us());
+    t.reset();
+}
+
+bool check = 1;
+void FCTN_MASTER_I2C(char i2c_data_type , char* i2c_data)
+{
+    FCTN_I2C_WRITE(&i2c_data_type,1); 
+    wait_ms(10);
+    switch(i2c_data_type)
+    {
+        case 's':
+        FCTN_I2C_WRITE(i2c_data,11);
+        break;
+            
+        case 'l':
+        FCTN_I2C_WRITE(i2c_data,135);
+        break;
+            
+        case 'h':
+        FCTN_I2C_READ(i2c_data,25);
+        break;
+            
+        default:
+        printf("\r\n\r invalid command \r\n");
+    }
+}
\ No newline at end of file