合众达XD560与DSP连接问题 错误代码0x80000200/-291

你好，完整的报错信息是什么？先确定仿真器驱动没问题（可以交叉试验一下别的板子），然后再连接板子。

以下是完整错误信息：

Error connecting to the target:
Error 0x80000200/-291
Fatal Error during: OCS,
This error was generated by TI's USCIF driver.

SC_ERR_TST_MEASURE <-291>
The built-in scan-path length measurement has failed. This indicates
that the JTAG controller cannot reliably communicate with
the target DSP's and micro-controllers at that frequency.
Try specifying the scan-path lengths in the board configuration
file because the built-in scan-path reliability tests cannot be
performed without knowledge of the scan-path length.

Sequence ID: 0
Error Code: -291
Error Class: 0x80000200

Board Name: C671x XDS560 Emulator
Cpu Name: TMS320C6710_0

Abort:  Close Code Composer Studio.
Retry:  Try to connect to the target again.
Cancel:  Remain disconnected from the target
Diagnostic: Run diagnostic utility.

别的板子连接没有问题

在targetconfiguration窗口下，选择仿真器驱动等完成后，先不要点debug，而是点击Test connection，能测试通过吗？

在CCS3.3下连接不通过 出现刚才那个错误代码的问题

如果其他板子都可以通过这个仿真器正常连接，说明仿真器问题应该不大。请先检查检查DSP供电是否正常；检查晶振是否起振，DSP上电正常情况下，查看CLKOUT 引脚，会有脉冲输出。就是说，先检查DSP是否可以正常启动，如果可以再详细检查JTAG接口电路是否有问题。