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BQ28400无应答,PACK+和PACK-之间没有电压

Other Parts Discussed in Thread: MSP430F5438, BQ28400

地址是0x16,但是任然无应答,波形如下,且地址发完之后,发送缓冲器中的数据发不出去,我用的MSP430F5438中的I2C模块和BQ28400通信。

 

另外再请教一下TI工程师:在bq28400 EVM-001版原理图中,PACK+和PACK-之间没有电压(电压很小),这是怎么回事?接在DSG脚和CHG脚的两个MOSFTE是接上电池就能导通的吗?

谢谢。