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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 eZ80
prior to selecting Build
No Output on Console Port
The eZ80L92 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 eZ80
eZ80L92 device on the module starts running code from this Flash mem-
ory area. This code enables the Console port with settings of 57.6kbps, 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 dis-
played, check the following:
•
•
UM012906-0103
®
Development Platform and the eZ80L92 Module, the
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).
PRELIMINARY
eZ80L92 Development Kit
→
→
Debug
Reset + Go in ZDS.
User Manual
®
Development Platform
Overview
59
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