Native LCD test

This sample program demonstrates how to directly access the registers of the HD66421 LCD driver chip and render lines and pixels.

The programs was compiled up using the H8 cross compiler environment described on this wiki.

If you don't have the compiler environment you can still run the test.boot pre compiled binary that is contain within the ZIP package.

To do this startup the Cybiko Console and press Boot from the toolbar menu (its the 2nd icon from the left). Now select the test.boot program.

A dialog will be presented asking you to reboot the cybiko, after doing this the new boot program will be sent as the Cybiko restarts.

lcdtest.zip


When the programming is running you may use

  • UP/DOWN arrow keys to adjust the contrast.
  • ENTER to exit and reboot the Cybiko