System not in hibernation when dg_configBATTERY_LOW_LEVEL reached.

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Last post
Fri, 2017-06-23 09:53
#1
Myken
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Last seen:1 year 8 months ago
加入:2016-07-13 20:06
System not in hibernation when dg_configBATTERY_LOW_LEVEL reached.

Hello,

In the bsp_defaults.h file I find for dg_configBATTERY_LOW_LEVEL:
* If not zero, this is the low limit of the battery voltage. If Vbat drops below this limit, the
* system enters hibernation mode, waiting either for the battery to the changed or recharged.

dg_configBATTERY_LOW_LEVEL is set to (2293) => 2.8V

However if I leave my system on (no BLE activity) it will discharge the battery al the way down to 1V.
我看到了定义used in sys_power_mgr.c, could it be that power management is not active? Should I enable something?
What am I doing wrong here.

- we have a rechargeable battery
- we are not using SOC
- we don't put the system into sleep mode (yet)
- charging itself works fine

Thanks.

Keywords:
Battery hibernation
Device:
DA1468x
Fri, 2017-06-23 16:57
MT_dialog
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Last seen:1 month 3 weeks ago
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加入:2015-06-08 11:34
Hi Myken,

Hi Myken,

Since you mention that you dont use the sleep mode, i suppose that you have set the default sleep mode (pm_set_sleep_mode()) in pm_mode_active or pm_mode_idle, is that correct ? If that is the case then with no sleep mode the SDK will never check the condition regarding lowest battery voltage in the apply_wfi() function of the sys_power_mgr.c and will never force the device into hibernation mode, try to set the sleep mode in pm_mode_extended_sleep.

Thanks MT_dialog

Mon, 2019-08-26 11:53
mahmed106
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Last seen:1 month 1 week ago
加入:2019-05-03 17:28
I also have the same problem.

I also have the same problem.

I also have set pm_set_sleep_mode(pm_mode_extended_sleep); but still it is not going to hibernation when voltage is reached.

星期一,2019-08-26 16:39
PM_Dialog
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Last seen:8 hours 5 min ago
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加入:2018-02-08 11:03
Hi mahmed106,

Hi mahmed106,

In order to put the device in hibernation mode, you should use the pm_set_sleep_mode(pm_mode_hibernation) and not the pm_set_sleep_mode(pm_mode_extended_sleep).

Thanks, PM_Dialog