XE8000EV108 Semtech, XE8000EV108 Datasheet - Page 8

• Manufacturer Part Number: XE8000EV108
• Description: EVAL BOARD FOR XE8806/XE8807
• Manufacturer: Semtech
• Type: MCUr

Specifications of XE8000EV108

• Contents: Fully Assembled Evaluation Board
• For Use With/related Products: XE88LC06AMI026
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

4 Troubleshooting
4.1 Introduction
This section is intended to help the XE8000EV108 users to perform basic hardware debugging.
4.2 Highlights
This chapter contains the following points:
•
•
4.3 XE8000EV108 functionality
Problem 1:
Possible causes:
Problem 2:
Possible causes:
Problem 3:
Possible causes:
4.4 XE8000EV108 hardware
Problem 1:
Possible causes:
Problem 2:
Possible causes:
Problem 3:
Possible causes:
© Semtech 2006
XE8000EV108 functionality
XE8000EV108 hardware
1 The jumper br1 is removed
2 You have disturbed the xin and xout lines with an oscilloscope probe.
3 The Xtal is not correctly soldered on the board.
4 The Xtal is damaged.
The program that should use the EEPROM interface or another I2C device is unable to
communicate with them.
1 The LED jumpers of the ports used are connected
2 The EEPROM jumpers (br5&6) have been removed
3 The EEPROM power jumpers has been removed
1 When the PortB 7 is not used as UART RX and the RS232 line driver creates an output
conflict, simply remove the RS232 cable from the ProStart II (XE8000MP) and the RS232
output will go to High Z.
2 The power consumption of your application is above 500mA
The board presents a short circuit between VDDA and GND.
1 The battery carrier has been damaged and the + contact touches the - : just put a piece of
paper between the two contacts
the headers. There is a more accessible ground near the PA7 button.
The power supply of the battery is not present on the VDDA line.
1 The power switch is in the wrong position, to use the battery the switch must be off.
2 The board is connected to a XE8000MP, in this case user power supplies are bypassed.
The power supply of the external power supply is not present on the VDDA pin.
1 The power switch is in the wrong position, to use the external power supply the switch must
be on.
2 The board is connected to a XE8000MP, in this case, user power supplies are bypassed.
The software that should use the Xtal peripheral seems to be locked.
When using the ProStart II (XE8000MP) as power supply, the VDDA seems to be unstable.
2 If you are measuring a signal on the board, be careful to not use the ground connection on
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XE8000EV108
User Guide
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