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Last Post 02 Apr 2012 02:14 PM by  glennj@logicpd.com
Article: DM3730 -- How to Re-Calibrate the Touch-Screen
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glennj@logicpd.com
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--
02 Apr 2012 02:14 PM
    Q: How is the touch-screen re-calibrated on the DM3730, AM3703 Zoom kit?
    A:
    To re-calibrate the touchscreen follow these commands from the DM37x Linux BSP User Guide (1020203A) for the DM3730. Section 3.12

    *************
    The sample image includes support for the Zoom Development Kit?s touch screen via the special file /dev/input/event0. To view raw touch data, try the octal dump command and then touch the screen.

    DM-37x# od –x /dev/input/event0
    *****
    To calibrate the touch screen, use the following commands:
    DM-37x# export TSLIB_TSDEVICE=/dev/input/event0
    DM-37x# export TSLIB_CALIBFILE=/etc/pointercal
    DM-37x# export TSLIB_CONSOLEDEVICE=none
    DM-37x# export TSLIB_FBDEVICE=/dev/fb0 DM-37x# ts_test
    Verify touches respond appropriately, then type:
    DM-37x# ts_calibrate

    Products Included:
    DM3730, AM3703, DM3730 Torpedo, DM3730 Torpedo + Wireless
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