以前JTAG接口的抗干扰能力是不怎么样,现在F3XX以后C2接口的C8051F芯片抗干扰能力还是挺强的
可以试试我们的ZUEC3调试器,目前售价80元一套.
ZUEC3 C8051F全速USB的JTAG/C2调试器 兼容U-EC3/U-EC5调试工具

(原文件名:ZUEC3.jpg)
ZUEC3是C8051F全系列MCU的低价位开发工具，为您提供快速开发应用系统工具。

本开发工具有如下特点：

1、硬件具有输入输出缓冲保护功能（可减少使用不当造成的硬件损坏）。
2、具有RUN(运行,绿 {MOD})、STOP(停止,红 {MOD})LED指示灯。
3、可实现单步、连续单步、断点、停止、运行、执行到当前位置等操作，支持寄存器/存储器的观察和修改，下载程序到Flash存储器，设置加密位等功能（可做调试器<通常所说的仿真器>和编程器使用）。
4、ZUEC3第8脚悬空时，在第1脚VDD提供3~3.6V/100mA的电源，如果目标板电流需求不大的话，一个调试器就可完成开发测试。
5、ZUEC3具有调试接口IO电平转换功能，供电方式选择在第8脚PCL提供，当第8脚接地时，JTAG/C2引脚的电平由外电路确定(适合对供电有特殊要求的芯片，如C8051F410。外部供电范围为1.0V~5.5V)。
6、和Silabs的原厂USB调试器USB Debug Adapter、U-EC3、U-EC5兼容，所有软件也同样适用本工具。
7、通过Silabs公司的软件，可以固件升级。调试接口与原厂兼容。
8、支持C8051F全系列单片机(JTAG或C2接口)：
·C8051F000/C8051F001/C8051F002
·C8051F005/C8051F006/C8051F007
·C8051F010/C8051F011/C8051F012
·C8051F015/C8051F016/C8051F017
·C8051F018/C8051F019
·C8051F020/C8051F021/C8051F022/C8051F023
·C8051F040/C8051F041/C8051F042/C8051F043
·C8051F044/C8051F045/C8051F046/C8051F047
·C8051F060/C8051F061/C8051F062/C8051F063
·C8051F064/C8051F065/C8051F066/C8051F067
·C8051F120/C8051F121/C8051F122/C8051F123
·C8051F124/C8051F125/C8051F126/C8051F127
·C8051F130/C8051F131/C8051F132/C8051F133
·C8051F206/C8051F220/C8051F221/C8051F226
·C8051F230/C8051F231/C8051F236
·C8051F300-GM/C8051F301-GM/C8051F302-GM/C8051F303-GM/C8051F304-GM/C8051F305-GM
·C8051F300-GS/C8051F301-GS/C8051F302-GS/C8051F303-GS/C8051F304-GS/C8051F305-GS
·C8051F310/C8051F311/C8051F312/C8051F313/C8051F314/C8051F315/C8051F316/C8051F317
·C8051F320/C8051F321
·C8051F326/C8051F327
·C8051F330-GM/C8051F330-GP(C8051F330D)/C8051F331/C8051F332/C8051F333/C8051F334/C8051F335
·C8051F336/C8051F337/C8051F338/C8051F339
·C8051F340/C8051F341/C8051F344/C8051F345/C8051F348
·C8051F342/C8051F343/C8051F346/C8051F347/C8051F349/C8051F34A/C8051F34B
·C8051F350/C8051F351/C8051F352/C8051F353
·C8051F360/C8051F363
·C8051F361/C8051F364/C8051F366/C8051F368
·C8051F362/C8051F365/C8051F367/C8051F369
·C8051F410/C8051F411/C8051F412/C8051F413
·C8051F500-IM/C8051F501-IM/C8051F504-IM/C8051F505-IM
·C8051F500-IQ/C8051F501-IQ/C8051F504-IQ/C8051F505-IQ
·C8051F502-IM/C8051F503-IM/C8051F506-IM/C8051F507-IM
·C8051F502-IQ/C8051F503-IQ/C8051F506-IQ/C8051F507-IQ
·C8051F520A-IM/C8051F521A-IM/C8051F523A-IM/C8051F524A-IM/C8051F526A-IM/C8051F527A-IM
·C8051F530A-IM/C8051F531A-IM/C8051F533A-IM/C8051F534A-IM/C8051F536A-IM/C8051F537A-IM
·C8051F530A-IT/C8051F531A-IT/C8051F533A-IT/C8051F534A-IT/C8051F536A-IT/C8051F537A-IT
·C8051F700-GQ/C8051F701-GQ/C8051F702-GQ/C8051F703-GQ
·C8051F708-GQ/C8051F709-GQ/C8051F710-GQ/C8051F711-GQ
·C8051F704-GQ/C8051F705-GQ/C8051F706-GQ/C8051F707-GQ
·C8051F712-GQ/C8051F713-GQ/C8051F714-GQ/C8051F715-GQ
·C8051F704-GM/C8051F705-GM/C8051F706-GM/C8051F707-GM
·C8051F712-GM/C8051F713-GM/C8051F714-GM/C8051F715-GM
·C8051F920-GM/C8051F920-GQ/C8051F921-GM
·C8051F930-GM/C8051F930-GQ/C8051F931-GM
······
9、本开发工具外壳为ABS工程塑壳，尺寸很小(mm)：54 × 33 × 15.5，携带方便。
10、全速USB2.0接口,使用USB-A和Mini-B连接线(使用广泛,很多MP3、MP4、数码相机、手机都使用该USB数据线),免安装驱动程序(HID类,Windows Me 以上系统自带驱动)，使用方便。
11、支持Keil的μVsion2、μVsion3；HI-TECH C PRO Compiler for 8051；Silicon Laboratories IDE；IAR Embedded Workbench for 8051等软件开发环境。

产品配置清单：
1、ZUEC3调试器一台。
2、10芯排线一条。
3、USB连接线一条。
4、提供C8051F开发相关的软件及教程（配3.5英寸CD-R光盘一张）。