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MSP430G2553: 利用MSP-EXP430G2ET开发板连接电路板烧录时出现unknown device

Part Number: MSP430G2553

如题,纯新手不知道哪里出现问题了,电路板上芯片用的是2553,我线是这样连的:

芯片的电路是这样的:

现在CCS10.4里是可以检测到调试器的

但是debug就显示Error connecting to the target:Unknown device

还有烧录程序的时候电路板需要通电吗?还是这样连就可以了?