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