Issue 151 February 2003
Newcomer Nitron
Motorola's Leading 8/16-Pin MCUs

BREAK

If you want to create debugging tools, this module allows you to take control of program execution. The break module is an address match check with a jump to the SWI vector at $FFFC:$FFFD (or $FEFC:$FEFD in Monitor mode).

It would take several columns to explain how to use this module, so I’ll move on. Just remember that this module is perfect if you enjoy getting your fingers dirty.

DEMO KIT

Motorola put together an impressive package to support the new Nitron family. The 68HC908 demonstration kit consists of a small PC board with a ’908QT4. It’s powered by a 9-V battery and has serial-level shifters that allow you to connect directly to a PC’s COM port. Also, the device is preloaded with an application, so you can place the battery on it and immediately know that all is well.

In addition, Motorola is working with Metrowerks to give you a free version of the CodeWarrier IDE that supports the Nitron microcontroller family. This special-edition toolset features the IDE with a project manager for up to 32 files. Whether you work in assembly or ANSI C, the source debugger will make it easy to obtain clean code. Also, built-in stationary (templates) will help you get started immediately.

P&E Microcomputer Systems technology brings full-chip simulation and flash memory programming support to the hardware kit. Processor Expert from UNIS lets you focus your efforts to the application code instead of the system peripherals by providing "beans." The beans produce the code that’s necessary for handling the micro’s peripheral by selecting a few items from the properties (i.e., physical configuration) and methods (i.e., routines required) menus.