Index: App/Services/FPGA.c
===================================================================
diff -u -rc8c2c1b2a5b2d4836d19fa3c719446c3089c4a36 -ra1c9eabfc633bc7e3ef370096b655b87a08e2e52
--- App/Services/FPGA.c	(.../FPGA.c)	(revision c8c2c1b2a5b2d4836d19fa3c719446c3089c4a36)
+++ App/Services/FPGA.c	(.../FPGA.c)	(revision a1c9eabfc633bc7e3ef370096b655b87a08e2e52)
@@ -476,8 +476,13 @@
         // did FPGA Ack the read command?
         if ( fpgaReadResponseBuffer[0] == FPGA_READ_CMD_ACK )
         {
+            U32 rspSize = FPGA_READ_RSP_HDR_LEN + sizeof(FPGA_HEADER_T);
+            U32 crcPos = rspSize;
+            U16 crc = MAKE_WORD_OF_BYTES( fpgaReadResponseBuffer[crcPos+1], fpgaReadResponseBuffer[crcPos] );
+
             // does the FPGA response CRC check out?
-            if ( 1 ) // TODO - check response CRC
+            if ( crc == crc16( fpgaReadResponseBuffer, rspSize ) )
+//            if ( 1 ) // TODO - remove when FPGA CRCs are implemented
             {
                 fpgaCommRetryCount = 0;
                 // capture the read values
@@ -571,7 +576,7 @@
     // check bulk write command success
     if ( ( FALSE == fpgaWriteCommandResponseReceived ) || ( fpgaWriteResponseBuffer[0] != FPGA_WRITE_CMD_ACK ) )
     {
-        // TODO - ???
+        fpgaCommRetryCount++;
     }
 
     // if bulk read command is ACK'd, collect the readings
@@ -580,8 +585,13 @@
         // did FPGA Ack the read command?
         if ( fpgaReadResponseBuffer[0] == FPGA_READ_CMD_ACK )
         {
+            U32 rspSize = FPGA_READ_RSP_HDR_LEN + sizeof(FPGA_SENSORS_T);
+            U32 crcPos = rspSize;
+            U16 crc = MAKE_WORD_OF_BYTES( fpgaReadResponseBuffer[crcPos+1], fpgaReadResponseBuffer[crcPos] );
+
             // does the FPGA response CRC check out?
-            if ( 1 ) // TODO - check response CRC
+            if ( crc == crc16( fpgaReadResponseBuffer, rspSize ) )
+//            if ( 1 ) // TODO - remove when FPGA CRCs are implemented
             {
                 fpgaCommRetryCount = 0;
                 // capture the read values
Index: App/Services/Utilities.c
===================================================================
diff -u -r6c8c486d26306662402945537c5acaea2709d85b -ra1c9eabfc633bc7e3ef370096b655b87a08e2e52
--- App/Services/Utilities.c	(.../Utilities.c)	(revision 6c8c486d26306662402945537c5acaea2709d85b)
+++ App/Services/Utilities.c	(.../Utilities.c)	(revision a1c9eabfc633bc7e3ef370096b655b87a08e2e52)
@@ -86,4 +86,24 @@
     return crc;
 }
 
+/*************************************************************************
+ * @brief crc8
+ * The crc8 function calculates a 8-bit CRC for a given range of bytes \n
+ * in memory.
+ * @details
+ * Inputs : none
+ * Outputs : none
+ * @param address : pointer to start address of memory range to calculate CRC for
+ * @param len : # of bytes in the memory range to calculate CRC for
+ * @return CRC
+ *************************************************************************/
+U08 crc8( U08 *address, U32 len )
+{
+    U16 crc = 0;
 
+    // TODO - 8-bit CRC algorithm
+
+    return crc;
+}
+
+
Index: App/Services/Utilities.h
===================================================================
diff -u -r81ca79980a75ab71985d3d610bcef45fd6730458 -ra1c9eabfc633bc7e3ef370096b655b87a08e2e52
--- App/Services/Utilities.h	(.../Utilities.h)	(revision 81ca79980a75ab71985d3d610bcef45fd6730458)
+++ App/Services/Utilities.h	(.../Utilities.h)	(revision a1c9eabfc633bc7e3ef370096b655b87a08e2e52)
@@ -22,6 +22,7 @@
 
 // ********** public function prototypes **********
 
-U16  crc16( U08 *address, U32 len );
+U16 crc16( U08 *address, U32 len );
+U08 crc8( U08 *address, U32 len );
 
 #endif