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PPC Series
This software tool is using for adjusting PPC products backlight under OS. It is easy and convenience with user friendly interface, and it allows customer to modify LCD illumination at any time.
Supported series: PPC-3000 series, PPC-4000 series, PPC-6000 series
OS Support: Windows XP, Windows 7, Windows 8/8.1
Instructions for Use
1. After your PPC has started and loaded the OS, the
appropriate .Net Framework for the OS needs to be
installed. Refer to:
Operating System Required SW:
Windows XP(32Bit)
Windows XP(64Bit)
Windows 7
Windows 8
Windows 8.1
Net framework 2.0
Net framework 3.5
N/A
Net framework 3.5
Net framework 3.5
Version
4. You can use mouse to hold and drag the arrow right or
left for adjusting brightness, and click on the icon one
more time for hidden the interface. You may also use keyboard to press “Ctrl + ” and “Ctrl + ”. Caution:
2.0.50727.42
3.5.30729.1
N/A
3.5.30729.6387
3.5.30729.7903
2. After the .net framework is installed, double click on
ppc_brightness.exe, and the brightness configuration will
open on the bottom right as shown:
Caution: This program will save user’s last setting for
illumination, and apply such settings next time when the
system boot up. If you don’t want to save the current settings,
un-check “Save as default”.
5. If you want to exit this application, right click on the icon
and choose Quit.
3. Find the backlight adjustment icon on the bottom right.
1 PPC Series Backlight Adjustment
Backlight Adjustment Manual
Backlight Adjustment
We strongly suggest customers follow this diagram when
developing their own AP.
Guidelines for AP Development
For all supported PPC models, customers can develop their
own AP for controlling the illumination. This AP needs to
control COM6 of the PPC to adjust the duty cycle of PWM
signal for achieving this function.
The relationship between duty cycle of PWM signal and LCD
light intensity is linear. It means as duty cycle equals 100%,
the LCD light intensity will achieve the high point.
COM6 transmit signal by RS-232, and the format is
19200/N/8/1.
Caution: We strongly recommend that the customer’s APP
does NOT modify the duty cycle under the LCD’s lowest
available value to avoid a black screen. This value is usually
about 10%, and you can use the following command to
control and read the information from the IC.
Command Specifications
Command Function
ATF0
ATPDn
ATABD
Retrieve Firmware
Version
Set PWM Duty Cycle
Retrieve the minimum
value of Brightness
Default
Value
Application
1.1
AP
80%
AP
10%
AP
1. The BIOS sets the PWM parameters everytime the
motherboard boots.
2. The AP controls the PWM duty cycle in the operating
system.
These commands are based on the RS-232 setting as below:
19200/N/8/1
All commands are in ASCII mode.
Example
ATPWn - Set PWM Duty Cycle
Syntax:
ATPDn<Enter>
Parameters
Where [n] is:
Set PWM Duty Cycle
If no [n] parameter, it will return the current PWM Duty Cycle
setting.
Return Value
Setting
OK<Enter>
Return value
[n]<Enter>
Where n is 0~65535 Please refer to the following diagram;
PPC Series Backlight Adjustment 2
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