1. LPC11U68 LPCXpresso板（OM13058）NXP官方介绍链接

http://www.cn.nxp.com/board/OM13058.html

2. LPC11U68 LPCXpresso板原理图，pdf格式：

LPC11U68 Xpresso v2 Schematic Rev B

LPC11U68 Xpresso v2 Schematic Rev C

3. lpcware网站LPC11U68 LPCXpresso板的介绍

https://www.lpcware.com/content/devboard/lpc11u68-lpcxpresso-board

4. embeddedartists网站LPC11U68 LPCXpresso板的介绍

http://www.embeddedartists.com/products/lpcxpresso/lpc11U68_xpr.php

5. LPC11U6x用户手册UM10732

http://www.nxp.com/documents/user_manual/UM10732.pdf

6. LPC11U68 LPCXpresso 板RevC更改记录

https://www.lpcware.com/system/files/LPCXpresso11u68-revC.pdf

7. LPC11U68 LPCXpresso 板RevB更改记录

https://www.lpcware.com/system/files/LPCXpresso11u68-revB.pdf

8. LPC11U6x器件数据手册

http://www.cn.nxp.com/documents/data_sheet/LPC11U6X.pdf