Memory

From the Advanced Mode dialog, click Memory to display the available settings for the device and tool you selected. You can control the memory address and other parameters related to a programming operation. Some of the options in this window are also available on the main screen, for viewing and to provide easy access to these settings.

Memory options will vary for different device families and the tool selected. All of the settings and parameters are similar to MPLAB X IDE.

Table: Memory Settings
Setting	Description
Auto select memories and ranges	Select either Allow PM3 to Select Memories or Manually select memories and ranges. If manually is selected, the Program Memory fields are disabled.
Configuration Memory	Allows the tool to program the configuration memory
EEPROM	Allows the tool to program the EEPROM
ID	Allows the tool to program the User IDs
Program Memory	Allows the tool to program the program memory
Auxiliary Memory	Allows the tool to program the auxiliary memory
Flash Data	Allows the tool to program the Flash data
Boot Flash	Allows the tool to program the Boot Flash
Configuration Memory	Allows the tool to program the configuration memory
Program Memory Range - define the address range to be used for programming the program memory.
Enter Range:	The address range in Hex of the program space that will be programmed
Reset	Returns addresses to default settings
Preserve Memory1 - define the addresses to be preserved when programming memory.
Preserve EEPROM on Program2	When the check box is selected, the device will not be programmed with any new data that is present in the memory (shown in the EEPROM window). The data in the EEPROM memory area on the device will not be erased.
Enter Range:	The address range in Hex of the program space that will be preserved
Preserve Flash on Program2, 3	When the check box is selected, the program memory range specified in the following Program Memory (Start and End Address) fields will not be programmed with any new data.
Enter Range:	The address range in Hex of the program space that will be preserved
Preserve Auxiliary Memory	When the check box is selected, the auxiliary memory will not be programmed with any new data that is present in the auxiliary memory.
Preserve ID Memory3	When the check box is selected, the ID memory will not be programmed with any new data that is present in the ID memory. Only available if device has user ID memory.

Table: Memory Settings

Setting

Description

Auto select memories and ranges

Select either Allow PM3 to Select Memories or Manually select memories and ranges. If manually is selected, the Program Memory fields are disabled.

Configuration Memory

Allows the tool to program the configuration memory

EEPROM

Allows the tool to program the EEPROM

Allows the tool to program the User IDs

Program Memory

Allows the tool to program the program memory

Auxiliary Memory

Allows the tool to program the auxiliary memory

Flash Data

Allows the tool to program the Flash data

Boot Flash

Allows the tool to program the Boot Flash

Configuration Memory

Allows the tool to program the configuration memory

Program Memory Range - define the address range to be used for programming the program memory.

Enter Range:

The address range in Hex of the program space that will be programmed

Reset

Returns addresses to default settings

Preserve Memory1 - define the addresses to be preserved when programming memory.

Preserve EEPROM on Program2

When the check box is selected, the device will not be programmed with any new data that is present in the memory (shown in the EEPROM window). The data in the EEPROM memory area on the device will not be erased.

Enter Range:

The address range in Hex of the program space that will be preserved

Preserve Flash on
Program2, 3

When the check box is selected, the program memory range specified in the following Program Memory (Start and End Address) fields will not be programmed with any new data.

Enter Range:

The address range in Hex of the program space that will be preserved

Preserve Auxiliary Memory

When the check box is selected, the auxiliary memory will not be programmed with any new data that is present in the auxiliary memory.

Preserve ID Memory3

When the check box is selected, the ID memory will not be programmed with any new data that is present in the ID memory. Only available if device has user ID memory.

Note 1:

The MPLAB PM3 programmer does not support the Preserve Memory options in the environment .pm3 files.

If you wish to use any of the Preserve Memory options, first ensure that your code is not code-protected. For memory to be preserved, the programmer reads the section it needs to save, performs a bulk erase of the device, reprograms the device and then rewrites the area that is preserved with what was saved. Therefore, this area cannot be code protected.