Zilog eZ80F92 Manuel d'utilisateur télécharger pdf (Page 63)

eZ80F92 Development Kit

User Manual

UM013911-0607 Troubleshooting

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

→

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).

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Zilog eZ80F92 Manuel d'utilisateur Page 63