Zilog eZ80F92 - Manual (Page 63)

eZ80F92 Development Kit
User Manual
UM013911-0607 Troubleshooting
59
Troubleshooting
Overview
Before contacting ZiLOG Customer Support to submit a problem report,
please follow these simple steps. If a hardware failure is suspected, con-
tact a local ZiLOG representative for assistance.
Cannot Download Code
If you are unable to download code to RAM using ZDS, make sure to
press and release the Reset button on the eZ80Acclaim!
® Development
Platform prior to selecting Debug → Reset and then Debug → Go in
ZDS.
No Output on Console Port
The eZ80F92 Development Kit is shipped with a Flash Loader utility that
is loaded in the protected boot sector of Flash memory (U3). Upon power-
up of the eZ80Acclaim!
®
Development Platform and the eZ80F92 Flash
MCU Module, the eZ80F92 device on the module starts running code
from this Flash memory area. This code enables the Console port with
settings of 57.6 kbps, 8, N, 1.
The Console checks the Receive buffer. If a space character is received on
the Console port, the Flash Loader utility is enabled and a boot message
should be displayed on your connected device. If no message is displayed,
check the following:
• Jumper J2 must be ON (IrDA is disabled)
• On Connector J6, the jumper must be removed from pins 6 and 9 (pin
names con_dis and GND).