ACR128 Dual Interface Smart Card Reader
5.4 Manual PICC Polling
If automatic PICC Polling is disabled, this command can be issued to determine if any PICC is
within the detection range of the reader.
To manually detect PICC within range of the built-in antenna, issue the following command:
ACR128 Escape Command
Manual PICC Polling Function
22
01
0A
Response
Response
Data
E1 00 00 00 01
Status
Status
00
PICC is detected
FF
No PICC is detected
NOTE:
This feature is useful for polling the PICC with a longer time interval, e.g., 30 sec.
5.5 Change The Default FWI, Polling Timeout And Transmit Frame Size Of The Activated
PICC
For some special cases, the applications may have to change the FWI and Transmit Frame Size to
meet the actual requirement. The parameter POLL_TIMEOUT is used for PICC Polling.
To change the FWI, Polling Timeout and Frame Size of the activated PICC, issue the following
command:
ACR128 Escape Command
Change the FWI, Polling Timeout
and FRAME SIZE
1F
03
New FWI
New Polling
Timeout
New Frame
Size
Table 12: Default Values for FWI, Polling Timeout, and Transmit Frame Size
Parameter Value
FWI 0B
Polling Timeout
08
Frame Size
64
Page
17 of 36
ACR128 API
Version 1.7 May 2008
