13.12.2012 Views

emWin - SEGGER Microcontroller

emWin - SEGGER Microcontroller

emWin - SEGGER Microcontroller

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Hardware configuration<br />

This driver accesses the hardware with the indirect interface. The following table lists<br />

the macros which must be defined for hardware access:<br />

Macro Description<br />

LCD_WRITE_A0 Write a byte to LCD controller with A-line low.<br />

LCD_WRITE_A1 Write a byte to LCD controller with A-line high.<br />

LCD_WRITEM_A1 Write multiple bytes to display controller with A-line high.<br />

LCD_READM_A1<br />

Read multiple bytes from display controller with A-line high. Required<br />

only if no display data cache is configured.<br />

If the display size in X is smaller than the number of segment outputs<br />

LCD_FIRSTPIXEL0<br />

of the display controller, this macro can be used for defining the first<br />

visible pixel of the display. It should be used if the first segment lines of<br />

the display controller are not connected to the display.<br />

Additional configuration switches<br />

The following table shows optional configuration switches available for this driver:<br />

LCD_CACHE<br />

Macro Description<br />

When set to 0, no display data cache is used, which slows down the<br />

speed of the driver. Default is 1 (cache activated).<br />

UM03001 User & Reference Guide for <strong>emWin</strong> V5.18 © 1997 - 2012 <strong>SEGGER</strong> <strong>Microcontroller</strong> GmbH & Co. KG<br />

991

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!