Basic program flow for contactless applications, Figure 3 – ACS AET62 NFC Reader with Fingerprint Sensor User Manual

Page 22

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8.0. 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. You must
make sure that the PCSC Escape Command has been set. See AET62 PCSC Escape
Command
for more details.


Step 1. The first thing is to connect the “AET62 PICC Interface”.

Step 2. Access the PICC by sending APDU commands.

:
:

Step N. Disconnect the “AET62 PICC Interface”. Shut down the application.

NOTE:

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

2. Standard and Non-Standard APDUs Handling.

 PICCs that use Standard APDUs: ISO14443-4 Type A and B, Mifare .. etc

 PICCs that use Non-Standard APDUs: FeliCa, Topaz .. etc.

Figure 3:

Basic Program Flow for Contactless Applications

1) For the AET62 PICC Interface, ISO7816 T=1 protocol is used.

o

PC

 Reader: Issue an APDU to the reader.

o

Reader

 PC: The response data is returned.

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AET62 Reference Manual

Version 1.00

Page 22 of 35

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