User manual

Stand-Alone Reference

8.4.3.1 SCREEN CONTRAST

This option enables you to select the default, darker or lighter setting to adjust the con-

trast on your screen. Sample text lines are provided so you can see the results of your

selection.

• Normal (default) – to reset the contrast to the default settings, select “Default” and

press <Enter> once.

• Darker – to increase the contrast, select “Darker” and press <Enter> until you

achieve the desired contrast.

• Lighter – to reduce the contrast, select “Lighter” and press <Enter> until you

achieve the desired contrast.

8.4.3.2 BUZZER VOLUME

This options enables you to select the volume of the buzzer tone.

• Loud – to make the buzzer volume loud, select “Loud” and press <Enter>.

• Medium (default) – to return to the default volume, select “Default” and press

<Enter>.

• Low – to make the buzzer volume low, select “Low” and press <Enter>.

• Mute – to mute the buzzer volume, select “Mute” and press <Enter>.

8.4.3.3 SOCKET INFORMATION

This option displays the socket part number and the socket ID of the socket module for

the socket currently installed on MPLAB PM3.

8.4.3.4 CHECKSUM CALCULATION

With this option, you can enable or disable calculating the checksum of a

code-protected device. When you select this menu option from the Main menu, a

message appears asking if you want to calculate the checksum, states the current

setting and offers two options (see Figure 8-2).

FIGURE 8-2: CHECKSUM CALCULATION SCREEN

The default setting is “Do Not Calculate”. The setting is saved when the programmer is

powered off.

Selecting the Calculate Checksum option saves time when programming or verifying

larger code-protected devices such as the PIC18F8720, since the entire device does

not get re-read.

If you set the checksum calculation option to “Do Not Calculate” and successfully

program a code-protected device, the screen will display, “Passed! Protected csum

disabled”.

If you set the checksum calculation option to “Do Not Calculate” and the program

operation of a code-protected device fails, the screen will display, “Failed! CP sum

disabled”.

Checksum Calculation

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Would you like to calculate the Code Protected Checksum

Currently: No

Do Not Calculate >>

Calculate Checksum >>