现用到Multi工程实现主机数据透传，主从机正常连接后调用Power_setConstraint(Power_SB_DISALLOW);这个函数，主从机能正常实现串口数据双向透传。主机为降低功耗调用Power_releaseConstraint(Power_SB_DISALLOW);这个函数后重新连接从机后，再次调用Power_setConstraint(Power_SB_DISALLOW);这个函数，串口数据不能透传了，是怎么回事呢？谢谢！
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