RF IDeas RFID1356i-232, Руководство пользователя

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Memory Operations
When you access a given area of memory on the card your reader key must agree with the key in the
card. If the keys do not agree, you will receive the error message:
indicating the iCLASS card was not identified. The card was not identified since AIR ID could not gain
access using the Key as defined in the reader. To alleviate this problem you need to specify and write
the correct key value (identical to the key in the card for this area of memory) to the reader key location
that is being used in the Card Context.
IMPORTANT: The reader will hold these Keys you write. Therefore it is very important when your
application is finished that you make sure you write new invalid Keys to the reader key locations you
use. This guarantees no one can gain access to secure memory locations within the card using a Key
already in the reader.
Here are a few macro-type operations you will use in working with the iCLASS cards. Each operation is
shown to indicate the proper sequence of events for executing the given task.
Read Operation
When you want to read an area of memory from the card, you must perform the following:
1. Get the Card Configuration,
2. Set the Card Context. This is the area of the card you wish to access. The context includes the
Page, Application Area (1 or 2), and the reader location (1-7) which holds the key you wish to
use to access this area.
3. Write the correct Key to the reader: Write to Reader
4. Perform the Read command using the Read button.
Write Operation
When you want to write an area of memory from the card, you must perform the following:
1. Get the Card Configuration,
2. Find a Free are on the card using the Procedure:
Find Free Page ,
3. Place a New Key value into the New Key field,
4. Write this Key to the Card:
Write to Card
5. Write this new Key to the reader: Write to Reader
6. Place the New contents into the Read/Write ASCII box,
7. Issue
a Write ASCII by pressing this button.