关于cc26xx的低功耗问题

硬件：ti 2650红板 （下载程序后所有外设断开）

软件：zstack_home_1_02_02a_44539中的swith工程 添加POWER_SAVING编译选项，禁止LCD的编译选项，注释掉按键、led的初始化代码，终端设备配置为2秒的轮询；

入网后示波器捕捉到的波形如图所示：

两次轮询之间会后 峰值功耗约3mA的 毛刺事件，这个毛刺事件是否正常？

这个叫recharge。看文档2 Understanding Bluetooth Smart Power Metrics

http://www.ti.com/lit/an/swra478a/swra478a.pdf

没有3mA那么大

5.3.2 Standby
Standby is the power mode in between the advertising (and connection) event, which includes a VDDR
recharge. The recharge is a mandatory function during Standby in order to retain RAM and make sure that
the clocks are powered. The power consumption in between these recharges are around 70 nA, almost
too small to even measure. It is the average power consumption during Standby including recharge that is
defined as the Standby current, given as 1 μA in the CC2640 and CC2650 data manual. It is also
important to know that this number is not fixed as the recharge pulses are dynamically adapted based on
the required time in Standby. If the measurement was performed immediately after a reset of the DUT,
there will be many more recharges between the advertising and connection events and over a few
seconds the amount of recharges will reduce to the mandatory 1 event. This means that Standby will go
from a slightly higher value, down to an optimum. The higher value has been measured to 2 μA.