User's Manual

 Advanced Card Systems Ltd. `Page 38 of 46

Examples:

// Store a value “1” into block 0x05

APDU = {FF D7 00 05 05 00 00 00 00 01}

// Read the value block 0x05

APDU = {FF B1 00 05 00}

// Copy the value from value block 0x05 to value block 0x06

APDU = {FF D7 00 05 02 03 06}

// Increment the value block 0x05 by “5”

APDU = {FF D7 00 05 05 01 00 00 00 05}

BASIC PROGRAM FLOW FOR CONTACTLESS APPLICATIONS

Step 0. Start the application. The reader will do the PICC Polling and scan for tags continuously.

Once the tag is found and detected, the corresponding ATR will be sent to the PC.

Step 1. Connect the “ACR1222U PICC Interface” with T=1 protocol.

Step 2. Access the PICC by exchanging APDUs.

Step N. Disconnect the “ACR1222U PICC Interface”. Shut down the application.

Remarks:

1) The antenna can be switched off in order to save the power.

• Turn off the antenna power: FF 00 00 00 04 D4 32 01 00

• Turn on the antenna power: FF 00 00 00 04 D4 32 01 01