Appendix Bpc3 Bootloader; Using The Bootloader Menu - Kurzweil PC3 Getting Started Manual

Appendix B
PC3 Bootloader
The Bootloader is the program that runs when the PC3 is first turned on. Its job is to check that
hardware is functional, initialize the digital systems, and load the main synthesizer program.
Under normal circumstances you might not even notice that the Bootloader is there at all, since
the PC3 will start up on its own without any problem. However, if you want to update your
unit, or perform maintenance on it, you may need to interact with the Bootloader program itself.
This appendix describes what the Bootloader can do and how you can use its functions.
The first thing to understand is that PC3 executable programs and all object data reside on a file
system contained inside the instrument. This file system is based on flash memory technology
and will persist across power cycles. When the PC3 starts up, the Bootloader copies the
synthesizer program into memory and executes it - just like a PC "boots up" when you turn it
on. The PC3 also stores its factory-defined objects, and all of your own customized user objects
on the file system. The Bootloader program itself is not found on the file system. Instead, it
resides in a ROM chip which cannot be erased, and therefore is permanently installed in your
PC3.

Using the Bootloader Menu

As noted above, under normal operation the Bootloader program will do its tasks and hand
over control to the synthesizer program automatically. If you want to interact with the
Bootloader itself, hold down the Exit button (to the right of the display) while turning the power
on (while the message "Initializing Scanner" is displayed on the front panel). Instead of
completing the boot process, the Bootloader will display its main menu page on the screen:
Use the soft buttons underneath the display to choose an action.
RUN PC3
UPDATE IMAGE
RUN DIAGS
SYSTEM RESET
FILE UTILITIES
You can also enter the Bootloader menu from the Master Mode menu during normal synthesizer
operation.
Preliminary - Subject to Change
PC3 Boot Loader
RUN UPDATE RUN
PC3 IMAGE DIAGS
This will boot the system in its usual way. This is useful if you've updated
the synthesizer program and want to try it out.
This offers a menu of choices to you for system update.
This will run the PC3 diagnostics which can help determine if there's a
hardware error on your unit, and if so what it is.
This will clear out all user-defined objects and return the PC3 to its
default "Factory" state.
This offers a menu of file system functions that can be useful in
maintaining your system or diagnosing software problems.
Version x.x
SYSTEM FILE
RESET UTILITIES
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