Other Parts Discussed in Thread: DRA829J
我们的MCSPI0现在是同时接了以太网Switch和4G模组,分别由CS0和CS1来片选。但是4G模组只能做主,Switch只能做从。比如和4G模组通讯或发数据的时候,DRA829J需要做从;而当需要控制Switch的时候,需要DRA829J做主。DRA829J可以在正常工作情况下来切换主从关系吗?
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我们的MCSPI0现在是同时接了以太网Switch和4G模组,分别由CS0和CS1来片选。但是4G模组只能做主,Switch只能做从。比如和4G模组通讯或发数据的时候,DRA829J需要做从;而当需要控制Switch的时候,需要DRA829J做主。DRA829J可以在正常工作情况下来切换主从关系吗?
The MCSPI0 was connected to the ethernet switch and 4G module at the same time in our design, selecting the two chips by CS0 adn CS1 pins. The 4G module SPI acted as master when communicated with DAR829J , and the ethernet switch acted as slave when communicated with DAR829J. So can DRA829J switch from master to slave or from slave to master in the normal working condition ? Is it need to reset the DRA829J?