AN2616 Freescale Semiconductor / Motorola, AN2616 Datasheet - Page 47

• Manufacturer Part Number: AN2616
• Description: Getting Started with HCS08 and CodeWarrior Using C
• Manufacturer: Freescale Semiconductor / Motorola

P&E parallel
Multilink BDM &
laptop
Monitor mode is not
working?
How do I reprogram
the HCS08 monitor?
How can I program
small batches of
HCS08 devices
without tying up a
PC?
Code in FLASH only
works when BDM is
powered?
MOTOROLA
Some laptops ship with a 3v parallel port and may not work reliably with the
P&E parallel Multilink BDM. To overcome this the Multilink should be powered
by an external 5v supply. Connect an external 5v center negative power supply
to the optional power jack of the P&E Multilink BDM.
There are several ways this can occur:
Other than changing the crystal, a BDM will be required to reprogram the
monitor code or alter the device’s clock frequency used by the monitor.
If the HCS08 monitor is erased or corrupted, it will be necessary to download
the HCS08 monitor code to the device utilizing a BDM; there is no other way.
Refer to application note “AN2140/D — Serial Monitor for MC9S08GB/GT” for
a description of the monitor and the Metrowerks project files required for re-
programming the monitor.
An HCS08 can be programmed only using the serial monitor mode or BDM.
P&E make a BDM pod that can be connected to the PC via usb, parallel or
ethernet, which can also be used as a standalone programmer. Refer to P&E's
web site for product details and ordering information on the CYCLONE PRO
http://www.pemicro.com/products/68hc08/mon08/cyclone_pro/cyclone_pro.html
Disconnect the BDM pod, as it is interfering with the devices normal operation.
Getting Started with HCS08 and CodeWarrior Using C
•
•
Freescale Semiconductor, Inc.
For More Information On This Product,
Monitor erased
–
Clock speed is incorrectly assumed within monitor
–
–
reprogram
reprogram device with different clock setup
change crystal to 32.768 kHz or 4 MHz, according to version of
monitor in device
Go to: www.freescale.com
Frequently Asked Questions
AN2616
47