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关于CC3220SF LPDS模式问题

user6464274
Expert 1160 points
Other Parts Discussed in Thread: CC3220SF

 应用背景：

两块CC3220SF 开发板，一块做AP，一块做STA。

AP通过无线网络唤醒STA，STA在无任务时需要保持低功耗，AP功耗无限制

问题如下：

1、STA在进入LPDS模式时，能保持AP连接吗？能保持UDP Socket连接吗？

2、能够触发网络唤醒的事件有哪些？

  • 0
    Expert 1160 points
    补充一个问题：
    3、STA连入AP时，AP没有数据发送，但是STA一直运行sl_Recv，此时STA的NWP能够进入LPDS模式吗？
  • 0 回复 user6464274
    TI__Guru* 82220 points
    LPDS mode enters immediately to low power deep sleep with current range (0.12mA - 0.14mA) In this mode each subsystem processor requests the clock management unit for shutting off their subsystem. When both the subsystems request for this mode, Clock management unit will turn off the PLL, 40Mhz xtal, and the power management unit will shut off the power to each subsystem and scale down the voltage of always on domain to 0.9V. Active logic in this mode will work on 32 KHz clock.
    唤醒方式看手册15.3.8 Low-Power Deep Sleep (LPDS)：www.ti.com.cn/.../swru465.pdf