Manual configuration, Vega reader example – ThingMagic Mercury API v1.23.0 User Manual

Page 58

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Antenna Usage

58

Level 2 API

example, if the reader is identified as a Vega, the settings define in

Vega Reader Example

which previously had to be manually configured will be automatically set.

Manual Configuration

The

portSwitchGpos parameter defines which GPOutput lines will be used for antenna

switching and, consequently how many ports are supported.

The

txRxMap parameter defines the mapping of virtual port numbers to physical TX and

RX ports. Once configured the virtual antenna number for each antenna configuration
setting will be used in place of the physical port number in API calls, such as in

SimpleReadPlan

.

The map between virtual antenna numbers and physical antenna ports specified in

/

reader/antenna/txRxMap

will be used to filter the detected antennas - antenna ports that

are detected but have no corresponding virtual antenna in the map will not be used. The
map will also be used to translate from specified antenna numbers to antenna ports.

Vega Reader Example

In order to map the virtual port numbers to correspond to the antenna port

labels on the Vega reader you must set the

portSwitchGpos to use one

GPOutput line to control the 1 to 2 multiplexer used by Vega (as noted in
the Vega User Guide) and setup the

txRxmap:

r.paramSet("/reader/antenna/portSwitchGpos", new int[]{1});

r.paramSet("/reader/antenna/txRxMap", new int[][]{new

int[]{1,2,2}, new int[]{2,5,5}, new int[]{3,1,1}});

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