Troubleshooting
Description
User’s Manual
EVB912UF32 Evaluation Board Rev 1
MOTOROLA
Troubleshooting
33
4.1 Description
This section discusses common operational issues and how to resolve them.
4.2 Common Issues
4.2.1 5V PWR LED is not lit
Check the EVB912UF32 for power:
1.
Verify the power supply is plugged in and the wall outlet has power.
2.
Verify that S1 is in the ON position and the power jack is plugged
securely into J20.
3.
Check that voltage is available at J22, the +12V test loop.
4.
Check that the fuse, F1, is not open. If it is, replace the fuse.
4.2.2 BDM communications are not working.
Communication with the board through the BDM interface, J3, stops working
or will not work.
1.
Verify power is properly applied to the board. (See 4.2.1.)
2.
Verify a valid clock source is selected at W1. Normally the on board
12MHz crystal will be used which requires W1 pins 1-2 to be jumpered.
3.
Verify the external Multi-link device is connected to J3 and powered.
4.
Verify there is an active USB connection from the Multi-link to the PC.
User’s Manual — EVB912UF32
Section 4 Troubleshooting