Support Information
DEMO9S12NE64 User’s Manual, Rev. 0.7
Freescale Semiconductor 25
Issue: I can not get the DEMO9S12NE64 to power up
Answer: Make sure you are using a power supply that is between + 6 VDC and + 12 VDC. It
should have a center positive barrel type connector with an inside diameter of 2.1mm and an
outside diameter of 5.5mm. When power is connected correctly the green LED marked "PWR"
will light up denoting + 3.3 VDC out of the on-board regulator. There is a resettable 0.75A fuse
on the DEMO9S12NE64. If you plug in a power supply with the wrong polarity or exceed
0.75A, remove power from the DEMO9S12NE64 for 1 minute before attempting to power up
the DEMO9S12NE64 again.
Issue: When trying to program the part through the serial monitor I have the board hooked up
correctly but still get a message that says "Could Not Connect to Hardware"
Answer: Make sure you do not have another program, such as a terminal program, using the
com port you are trying to program the DEMO9S12NE64 through.
Issue: I have connected the Ethernet port of my DEMO9S12NE64 to my computer, or Local
Area Network (LAN), but I am not seeing the correct Ethernet output in the demo program.
Answer: If you are connecting the DEMO9S12NE64 directly to your computer, make sure you
are using an Ethernet crossover cable. An Ethernet crossover cable is supplied with your
DEMO9S12NE64. If you are connecting the DEMO9S12NE64 to your LAN, you need to use a
straight through Ethernet cable.
