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| 型号： | XE8000EV101 |
| 厂商： | Semtech |
| 文件页数： | 7/9页 |
| 文件大小： | 0K |
| 描述： | EVAL BOARD FOR XE8801AMI027LF |
| 标准包装： | 1 |
| 类型： | MCU |
| 适用于相关产品： | XE88LC01AMI027 |
| 所含物品： | 完全组装的评估板 |
| 产品目录页面： | 585 (CN2011-ZH PDF) |
Users Guide XE8000EV101
Evaluation Board for the
XE88LC01MI027
4 Troubleshooting
4.1 Introduction
This section is intended to help the XE8000EV101 users to perform basic hardware debugging.
4.2 Highlights
This chapter contains the following points:
? XE8000EV101 functionality
? XE8000EV101 hardware
4.3 XE8000EV101 functionality
The software that should use the Xtal peripheral seems to be locked .
Possible causes: 1 The jumper "quartz" 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.
When using the ProStart II (XE8000MP) as power supply, the VDDA seems to be unstable .
Possible causes: 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
4.4 XE8000EV101 hardware
The board presents a short circuit between VDDA and GND .
Possible causes: 1 The battery carrier has been damaged and the + contact touches the - : just put a
piece of paper between the two contacts
2 If you are measuring a signal on the board, be careful when using the ground
connection on the headers
The power supply of the battery is not present on the VDDA line .
Possible causes: 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 .
Possible causes: 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.
? Semtech 2006
7
www.semtech.com
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