Steven Kay / Mbed 2 deprecated MCP9803_NUCLEO_Driver

Initial I2C Working

Dependencies:   mbed

Diff: main.cpp

Revision:
1:444546e8cd20
Parent:
0:fbf82bf637bb
Child:
2:832cb4376d2a
diff -r fbf82bf637bb -r 444546e8cd20 main.cpp
--- a/main.cpp	Wed Mar 29 08:33:10 2017 +0000
+++ b/main.cpp	Wed Mar 29 12:20:34 2017 +0000
@@ -21,7 +21,27 @@
     data[0] = 0x00;
     TempSensor.I2C_Write(data,1);
     
-    TempSensor.I2C_Read(2);
+    int len = 2;
+    char *buffer = TempSensor.I2C_Read(len);
+    
+    char inBuffer[len];
+    
+    for(int i = 0; i < len; i++)
+    {
+        inBuffer[i] = *(buffer+i);
+    }
+    
+    int dat = (((inBuffer[0] << 8) | inBuffer[1])>>4);
+    
+    printf("data value = %04x\r\n",dat);
+    
+    if(dat > 2047)
+    {
+        dat -= 4096;
+    }
+    
+    float tempC = 0.0625*dat;
+    printf("Temp C = %f\r\n\r\n",tempC);