常用的USB转串口下载芯片驱动可以参照我这篇文章USB转串口 FT232/PL2303/CH340 驱动以及使用体会 ，今天有找出了那根串口线打算使用，由于系统已经换为Windows8.1 X64所以又去官网找驱动去了，一看悲剧了。官方信息如下：
PL2303 Windows Driver Download
Download File: PL2303_Prolific_DriverInstaller_v1.9.0.zip （驱动下载地址）
Windows Driver Installer Setup Program
(For PL2303 HXA, XA, HXD, EA, RA, SA, TA, TB versions)
Installer version & Build date: 1.9.0 (2013-10-25)
Windows XP (32 & 64-bit) WDM WHQL Driver: v2.1.51.238 (10/22/2013)
- Windows XP Certified WHQL Driver
- Compatible with Windows 2000SP4 & Server2003
Windows Vista/7/8/8.1 (32 & 64-bit) WDF WHQL Driver: v3.4.62.293 (10/17/2013)
- Windows Vista, 7, 8, 8.1 Certified WHQL Driver
- Compatible with Windows Server2008/Server2008R2/Server2012
- Driver can auto-download via Windows Update (for Windows Vista, 7, 8, 8.1)
Installer Language Support: English (default), Chinese (Traditional and Simplified), Japanese
For Prolific USB VID_067B&PID_2303 and PID_2304 Only
Includes Certification Report, User Manual & CheckChipVersion Tool
NOTE:
- Windows 8/8.1 are NOT supported in PL-2303HXA and PL-2303X EOL chip versions.
- Run PL2303 CheckChipVersion tool program in Windows XP/Vista/7 to check chip version.
- Windows 98 and Windows ME driver support is discontinued and is no longer provided.
- Prolific recommends to use PL-2303HXD (HX Rev D) or PL2303TA chip.
上面已经包含最新1.9版本的驱动，支持xp-8.1的32和64位系统，但是PL-2303HXA和PL-2303X已经不支持了，拆了我的串口线一看果然是HXA的，这下悲剧了，还是装下试试看看，驱动能够安装，线也能够识别，但是无法启动。
下图是HXD的芯片，注意第一行后面的HX和第二行后面的D，现在淘宝也已经能够买到PL-2303TA的芯片了，和之前的2303是完全兼容的，所以如果使用windows8的朋友还是稍微注意下。
我在虚拟机的XP中用驱动中给的工具检查了下，果然是HXA。算了，还是换FT232的吧。
