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ZOOM ColdFire SDK
QuickStart Guide
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4.2 Power-up the Development Kit
The Zoom ColdFire SDK Development Kit is shipped with both the Freescale and Logic
bootloaders installed in resident flash. The Freescale 'dBUG' ROM monitor is the default
bootloader. LogicLoader can be accessed via the dBUG ROM monitor, see Section 4.2.2.
LogicLoader provides the capability for loading operating systems and applications. In
addition, it provides a full suite of commands for interfacing to the Fire Engine. These
commands load operating systems, configure hardware platforms, bring up hardware,
customize applications, perform tests, and manage in-field devices.
4.2.1dBUG ROM Monitor Power-up
When you start up your ColdFire SDK Development Kit in Tera Term, the dBUG ROM monitor
will appear. The dBUG ROM monitor is programmed into the Fire Engine's boot flash device.
Accessing dBUG
Interface to dBUG via a terminal emulation program connected via a null-modem serial cable
to the “Terminal” port of Fire Engine. Use the following default terminal settings: 19200 baud,
8-data-bits, 1-stop-bit, no-parity, and no-flow-control.
1.
Start a terminal program on the host PC (e.g., Tera Term, HyperTerminal).
2.
Connect a serial cable to the host PC and to the serial port on the baseboard.
3.
Connect power to the Development Kit.
4.
In the terminal program you should now see a dBUG screen presenting firmware
version and the dBUG> prompt.
Note:
If the dBUG monitor screen does not appear, please check Tera Term serial
settings, all cable connections, board connections, and press system reset.
5.
Logic recommends that you immediately increase the baud rate for faster
downloads and for ease of interfacing to LogicLoader. To do so, enter the
command 'set baud 115200' at the dBUG prompt. Next, adjust the baud rate on
your terminal emulation program to 115200. Then press System Reset and you
should see the startup screen that you saw in Step 4. Since the dBUG monitor
program stores its settings in flash, the higher baud rate setting will remain in effect
until the next time it is changed.
4.2.2LogicLoader (Bootloader/Monitor) Power-up
The Fire Engine is shipped with a version of LogicLoader (bootloader/monitor) programmed
into the boot flash device at an offset of 0x0004_0000.