CCS5.5 配XDS200仿真器运行程序时，总是报如下错误
674X_0: Trouble Halting Target CPU: (Error -1139 @ 0x0) Lost debug connection to device. 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 5.1.232.0)
但是此时程序是正常运行的，只是不能调试，调试的打印语句也无法输出，芯片用的是C6748
