Troubleshooting; Overview; Cannot Download Code; No Output On Console Port - ZiLOG eZ80F92 User Manual

Troubleshooting

Overview

Cannot Download Code

No Output on Console Port

UM013904-0203
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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.
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
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 eZ80 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
57.6kbps, 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:
•
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
eZ80F92 Development Kit
→ →
Debug Reset + Go in ZDS.
User Manual
®
Development Platform
Troubleshooting
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