TI中文支持网用的是ti的评估版evm6670，报错信息如下：
IcePick_D: Error connecting to the target:(Error -503 @ 0x0) The user selected phase-one auto-range frequency failed the scan-path test.The utility or debugger requested the JTAG controller and cable, that generate the JTAG clock, to use a user selected feature or algorithm.The built-in scan-path reliability test has failed.This indicates that the JTAG controller and its cable cannot reliably communicate with the target system using that feature or algorithm.Try using the legacy frequency or a known good specific frequency. (Emulation package 5.0.872.0)
Shine：
看一下仿真器上的LED灯状态是否进入safemode。
When SAFE mode is active the LEDs D4, D5 and D6 will blink simultaneously.
http://processors.wiki.ti.com/images/d/df/Emulator_safemode.pdf
user4995600：
回复 Shine:
那几个led灯没有闪，应该不是进入safemode，并且有的时候能连接上板子进行调试，不过几率比较小。。。
Shine：
回复 user4995600:
请问用的是哪个CCS版本？操作系统是什么？
user4995600：
回复 Shine:
我使用的是ccs5.3，操作系统是win10，难道是兼容性的问题？
Shine：
回复 user4995600:
CCS v5.3不支持win10。用ccs v6, v7。 http://processors.wiki.ti.com/index.php/System_Requirements
