DEMO9S12NE64E Freescale Semiconductor, DEMO9S12NE64E Datasheet - Page 18

• Manufacturer Part Number: DEMO9S12NE64E
• Description: DEMO BOARD FOR 9S12NE64
• Manufacturer: Freescale Semiconductor
• Type: MCUr

Specifications of DEMO9S12NE64E

• Contents: *
• Processor To Be Evaluated: MC9S12NE64
• Maximum Operating Temperature: + 50 C
• Minimum Operating Temperature: - 10 C
• Operating Supply Voltage: 6 V to 12 V
• Silicon Manufacturer: Freescale
• Core Architecture: S12
• Core Sub-architecture: S12
• Silicon Core Number: MC9S12
• Silicon Family Name: S12NE
• Rohs Compliant: Yes
• For Use With/related Products: MC9S12NE64
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.7 Troubleshooting
Freescale Semiconductor
Issue: I am having trouble running code that performs Ethernet Auto Negotiation
Answer: The DEMO9S12NE64 currently does not support Ethernet Auto Negotiation. The
demo code shipped with the DEMO9S12NE64 includes Auto Negotiation code however this
feature is turned off. The option for enabling this code is in the file etherinit.h in the line:
#define AUTO_NEG 0
Setting this definition to 1 will enable Auto Negotiation
Issue: I am having trouble getting the DEMO9S12NE64 to communicate over the ethernet.
Answer: The demo code shipped in the DEMO9S12NE64 has a non IEEE compliant MAC
address for example only. If you have more than one DEMO9S12NE64 connected to your
network, they will both have the same MAC address and there could be an ethernet conflict. You
can change the MAC address in the demo or connection programs by changing the variable
hard_address in the file address.c
2 (Outside)
3 (Outside)
1 (Center)
Pin
SLEEVE
Label
P_NC
Table 2-5 Power Connector J52 Signal Descriptions
VIN
When using your DEMO9S12NE64 there are several issues you may run into.
Some of these issues and possible solutions are listed below It may be helpful
to refer to the schematic and bill of materials located on the included resource
CD.
Voltage In, 6-12 VDC, 0.75 Amps
GROUND
No connection
DEMO9S12NE64 User’s Manual, Rev. 0.8
Figure 2-4 Power Connector J52 Pin Assignments
2
Top View
1
Signal
3
Side View
1
2
Support Information
21