7inch HDMI LCD (B) User Manual
6
Rev 1.1, Date: May 20
th
2015
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3.
How to use with BeagleBones
3.1.
How to program Angstrom image file
If this LCD module is used for display only, you can program the latest Angstrom image file to the
board directly without any change. The BeagleBone Black will read the display parameters of the 7
inch HDMI displayer and set the resolution to 800*480 automatically.
When using this LCD module as a touch screen, you should program the image file
BeagleBone_Black-Angstrom-usb-touch-7.0-cap-20150513.img
provided by the CD to the board.
Please follow the steps below to program the image file.
1)
Copy the file with the expansion name .img to your PC;
2)
Connect a TF card to your PC, and format your TF card with the SDFormatter.exe
Notices: The capability of TF card in used here should be more than 4GB. In this operation, a TF
card reader is also required, which has to be purchased separately.
3)
Start the Win32DiskImager.exe, and select the system image file copied into your PC, then, click
the button
Write
to program the system image file.
4)
After programming the image file, please insert the TF card to your board, press the key uBOOT
and hold it till power up. Then, you will enter the system located at the TF card. And BeagleBone
will take about 40 minutes to copy the system in the TF card into the on-board eMMC. When
finished, the 4 LED indicators on the board will light up at a same time. After the system
rebooted, you can enter the graphical desktop directly.
3.2.
Hardwar e connection
1)
Connect the LCD to the HDMI on the BeagleBone board with a HDMI to micro HDMI cable;
2)
Connect the USB Touch interface on the LCD to the USB interface on the BeagleBone board with
USB type-A male to micro-B cable. (BeagleBone has two USB interfaces, one for host and the
other for client. In here, you should connect the LCD module to the USB host interface).
