Zilog EZ80F91 Uživatelský manuál stáhnout pdf (Strana 61)

eZ80F91 Development Kit

User Manual

UM014220-0508 Troubleshooting

Troubleshooting

Overview

Before contacting Zilog Customer Support to submit a problem report,

follow these simple steps. If a hardware failure is suspected, contact a

local Zilog representative for assistance.

Cannot Download Code

If you are unable to download code to RAM using ZDS, ensure to press

and release the Reset button on the eZ80Acclaim!

Development Kit

prior to selecting Debug → Reset and then Debug → Go in ZDS II.

IrDA Port Not Working

If you plan to use the IrDA transceiver on the eZ80F91 Module, ensure

that the hardware is set up as follows:

•

Jumper J2 must be OFF (to enable the control gate that drives the

IrDA device).

•

Set port pin PD2 Low. When this port pin and Jumper J2 are turned

OFF, the IrDA device is enabled.

•

Install a jumper on connector J6 across pin names con_dis and GND

to disable the console serial port driver.

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