Freescale Semiconductor Microcontrollers - Manual (Page 705)

Flash Programming
NVMC Graphical User Interface
705 Microcontrollers Debugger Manual
The second checkbox of the Configuration group is Save and restore workspace
content. If this checkbox is clear, Flash programming applications overwrite any data in
RAM. Check this box to save the current RAM data. Saving RAM data slows down the
NVMC. Checking this checkbox is equivalent to entering the SAVECONTEXT and
LOADCONTEXT
commands.
Flash Module Handling
Flash parameter files (which have the extension .FPP) contain MCU-specific parameters,
as well as programs to handle internal Flash modules. The FPP Files section includes
additional information about .FPP files. The .FPP files also include code-applet
descriptions of Flash operations.
You also may use the Command Line component to handle Flash operations. The NVMC
Commands section explains the corresponding commands.
The NVMC dialog box has buttons for commands you can apply to each block. These
buttons are dynamic; active if the operation is possible for at least one selected item,
disabled if the operation is not possible.
• Select All/Unselect All — The Select All button selects all modules in the list box.
After the button is pressed, the button changes to Unselect All, and can be pressed to
remove all current selections.
• Enable/Disable — The Enable button enables all selected modules currently
disabled. The Disable button disables all selected modules currently enabled. The
possibility of enabling or disabling a Flash module depends on the MCU features and
context.
• Protect/Unprotect — The Protect button protects all selected modules currently
unprotected. The Unprotect button unprotects all selected modules currently
protected. The possibility of protecting or unprotecting a Flash module depends on
the MCU features and context.
NOTE For some MCUs, protection is possible only for the Boot section and boot
routines, not for the entire module. Refer to
Hardware Considerations for
protection information about your CPU derivative.
• Erase — The Erase button removes any programming from all selected Flash
modules. That is, it assigns the value 0xFF or 0x00 to each byte. Erasure changes the
module status to Blank. If all the selected modules already are blank, the Erase
button is disabled.
• Load — The Load button arms all selected modules, executes a LOAD command,
then disarms the modules. If you click the Load button without selecting any Flash
modules, the NVMC utility selects and loads all modules.