Changes between Version 10 and Version 11 of KyoshoICserialcom

Timestamp:

10/27/09 11:45:47 (15 years ago)

Author:

pinwc4

Comment:

--

KyoshoICserialcom

@@ -83 +83 @@
 = Read Data Blocks =
 
-how to read data blocks
+If you want to read back data blocks from an RFID tag directly the command will be in the following format:'
+
+{{{
+Byte 1 is 36 for the start of the frame
+Byte 2 is 0D for the length of the packet INCLUDING the checksum
+Byte 3 is the starting block to read
+Byte 4 is the number of blocks to read, 0 based so 0 = 1 block, 9 = 10 blocks
+Byte 5-12 is the UID to be read in reverse byte order
+Byte 13 is the checksum calculated using a XOR operation
+}}}
+
+An example of this command sent to UID E0 04 01 00 1C E3 BD 06 to read 10 blocks starting at block 3 would look like this:
+
+{{{
+36 0D 03 09 06 BD E3 1C 00 01 04 E0 90
+}}}
+
+The response to this command would be in the following format:
+
+{{{
+Byte 1 is A6 for the start of the frame
+Byte 2 is 2B for the length INCLUDING the checksum
+Byte 3-(length-1) is the data
+Byte (length) is the checksum calculated using a XOR operation
+}}}
+
+Using the command example above the data returned as a response could look like this:
+
+{{{
+A6 2B 54 65 73 74 20 43 61 72 20 4E 61 6D 65 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 CC
+}}}
+
 
 = Write Data Blocks =