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cc2531仿真器无法连接目标板

Other Parts Discussed in Thread: CC2531, CC-DEBUGGER

 

 

 

上图原理图请问有问题吗?

目前目标板上仅焊接了cc2531芯片和R1   R4  C2  晶振没有焊接,电源部分正常供电,但是仿真器无法连接目标板,smartrf studio提示no chip

仿真器使用的是smartrf04eb fireware revision = 0043

请问这是哪里出了问题