芯片在不进入低功耗电流大概8mA多，执行 osal_pwrmgr_device( PWRMGR_BATTERY )后，进入PM2模式，发现电流在几十个μA到几百μA之间来回
变化，感觉电流还是太大。查阅datasheet，描述的Power Mode 2 (Sleep Timer On): 0.9 μA ，差距也太大了吧。请问还有什么方法能降低芯片进入PM2模式
后的电流大小？
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