Zilog EZ80F91 - Manual (Page 61)

eZ80F91 Development Kit
User Manual
UM014220-0508 Troubleshooting
56
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.