TFT LCD Panel - Driving the GUI

Navigation and selection on the TFT LCD panel is simply a case of touch-and-go. This facility is provided courtesy of the panel's touch screen layer. Use your finger, or the supplied stylus, to touch icons and descend into sub-screens of the GUI, which collectively provide access to a myriad of features.

The GUI itself is very intuitive – a few taps on the screen and you will quickly become familiarized with the controls and options available. The following list offers a few pointers when using the GUI – some obvious, some more subtle, but all aimed at making your experience with the GUI a more productive one.

• The panel's touch screen should already be calibrated correctly upon first use. However, recalibration can be performed at any time. From the Home screen of the GUI, touch the icon, followed by the icon. Calibration involves touching at four prompted locations - top-left, top-right, bottom-right and bottom-left.

• If a screen presents radio-button style options, simply touch the radio button for the option that you wish to make use of. If a screen presents check box style options, simply touch on the check box area to toggle the state of that option.

• If a screen allows you to change a setting, there will typically be two icons at the bottom of the screen with which to commit the change or cancel and return back to the parent GUI screen .

• The icon at the bottom-right of a screen may change depending on the context of the screen and the action permitted. For example, if you have selected an example design on the Examples screen, or an FPGA programming file on the Browse screen, the icon will appear as , meaning the design/file will be downloaded to the daughter board FPGA if touched.

• Settings modified through the GUI can be reset to their default values. This can be achieved in one of two ways:
   
  • Press and hold generic user switches SW1, SW3 and SW5 (located below the TFT LCD panel) and keep the Home button (designated SW9 and located to the top-right of the panel) pressed for more than 5 seconds.
  • Press and hold generic user switches SW1, SW3 and SW5 and cycle the NB2DSK01's power.

• Certain sub-screens or options of the GUI will be disabled if they can not be used or accessed at that time. The Examples screen, for example, will only become enabled if an SD card with applicable content is inserted into the motherboard's SD card reader. Another example is the GUI to daughter board icon, , which will be disabled unless an FPGA design is running on the daughter board FPGA, and which utilizes the TFT LCD panel.

• The image at the top-left of the screen reflects the current JTAG connection between the NB2DSK01 and the PC. denotes a parallel port connection, while denotes a USB2.0 connection. The image will flicker momentarily, and periodically, in accordance with the chosen polling interval, defined on the FPGA - Devices View page of the Preferences dialog (DXP » Preferences).

• The version of firmware currently installed and running on the NanoTalk Controller is reflected at the bottom of the GUI's Home screen. If there is a later version of firmware available, you will need to follow the procedure for updating to the new firmware. For detailed information on how to do this, see Updating the Firmware on the Desktop NanoBoard NB2DSK01.