Specifications

Chapter 2 Firmware Commands 71
Pen Only
Syntax: <SOH>PO<CR>
Description: Sets the operational mode of a TouchPen controller to accept only pen
input. The controller ignores finger data.
There are three pen modes available:
Pen Only mode detects pen contact only and processes pen
coordinate data.
Pen or Finger mode detects pen and finger contact, giving priority
to pen contact when both are detected. Pen or Finger mode is the
default mode for TouchPen controllers.
Finger Only mode detects finger contact only and processes finger
coordinate data.
The pen mode changes back to the default setting at power-up, or if
you issue a Restore Defaults command. You can use the Set
Parameter Block command to change the default setting.
Choose the appropriate mode for your application. For example,
applications requiring only signature input use Pen Only mode.
Gaming applications usually use Finger Only mode, and point-of-sales
applications that require signature verification may use Pen or Finger
mode.
Additionally, changing the pen mode setting can optimize the
performance of the touchscreen. In Pen or Finger mode, the
TouchPen controller checks for input from either a pen or a finger.
The controller always gives priority to the pen. If you are not
currently using the pen for your touch application, use Finger Only
mode for optimum performance.
Response: <SOH>0<CR> Positive response.