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Simple Display Driver Configuration

The following display driver configuration should work with most platforms running Windows CE. This configuration disables the use of off-screen display memory and forces the system to redraw the main display upon power-on.

1.This step disables the use of off-screen display memory.

Edit the file x:\wince300\platform\cepc\drivers\display\S1D13705\sources and change the line

CDEFINES=$(CDEFINES) -DEnablePreferVmem to

#CDEFINES=$(CDEFINES) -DEnablePreferVmem

2.This step causes the system to redraw the main display upon power-on. This step is only required if display memory loses power when Windows CE is shut down. If dis- play memory is kept powered up (set the S1D13705 in powersave mode), then the dis- play data will be maintained and this step can be skipped.

Search for the file PROJECT.REG in your Windows CE directories, and inside PROJECT.REG find the key PORepaint. Change PORepaint as follows:

“PORepaint”=dword:2

Windows® CE 3.x Display Drivers

S1D13705

Issue Date: 01/05/25

X27A-E-006-01

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Epson S1D13705 technical manual Simple Display Driver Configuration