TCA9543A I2C接口的应用看框图是一个主切2个从,是否可以反过来一个从切2个主的应用.如果这颗不行,是否可以有其它I2C接口,满足2个从切一个主的应用?
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您好,
您是想实现一个I2C总线有2个master的功能吗?仅通过TCA9543A是不可行的,因为TI的 I2C 多路复用器没有主仲裁功能,这需要在两个 master端的CPU 上安装某种软件,具体查看下面和您类似问题的帖子:
https://e2e.ti.com/support/interface-group/interface/f/interface-forum/955843/tca9543a-is-it-applicable-to-two-masters-and-one-slave?tisearch=e2e-sitesearch&keymatch=TCA9543A%20%20Master%20or%20Slaves#