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DSP28034的JTAG接口问题

自己焊了一块28034的板子,如果连接仿真器后多次按dsp的复位键,TEST显示是成功的;如果不按复位键,test显示是失败的,且两种情况都烧不进程序,

好奇怪的现象,有没有碰到类似的现象的,共同交流交流。