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5517仿真器问题

您好!

  新做的板子,TMS320C5517连接XDS100V3仿真器,该仿真器用开发板测试是好使的。连接新作的板子connect test测试success,但在线仿真时报错如下:

Error connecting to the target:
(Error -1136 @ 0x400)
Driver lost track of current debug frame. Reset the device, and retry the operation. If error persists, confirm configuration, power-cycle the board, and/or try more reliable JTAG settings (e.g. lower TCLK).
(Emulation package 6.0.407.3)

降低了JTAG频率还是这个错误,量了下JTAG的各个引脚输出,tck正常,TDI,TDO都有明显波形,芯片的晶振也都起震了,请问一下还可能是什么原因导致该问题呢??