想用G2553 写SMBus控制bq78350，但iic无反应。
使用官方iic例程，iic信号线是高电平，数据线是低电平。在线仿真代码死循环在
while (UCB0CTL1 & UCTXSTT); // Start condition sent?
请问什么原因呢？
两块G2553 一主一从IIC通信也是死循环在上面那条语句中。
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