return 0 from lld_evt_time_get | Dialog Semiconductor customer support - 雷电竞下载app,雷电竞官网登录,雷竞技安卓下载

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Thu, 2016-01-07 05:30

achao1104

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return 0 from lld_evt_time_get

dialog,

lld_evt_time_get some times return 0, some times, it works fine. when I call it in high frequency, it usually returns 0.
why?

Device:

DA14580

Thu, 2016-01-07 17:03

MT_dialog

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加入:2015 - 06-08 11:34

Hi achao1104,

You can use this function while the BLE is up and running, perhaps the times you are calling it and returns 0 is because the BLE is down.

Thanks MT_dialog

Fri, 2016-01-08 01:13

(Reply to #2) #3

achao1104

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thanks for reply.

thanks for reply.
but I am sure I have called codes below in the wake up callback function
if(GetBits16(SYS_STAT_REG, PER_IS_DOWN))
periph_init();
arch_ble_force_wakeup();
arch_ble_ext_wakeup_off();.

Mon, 2017-01-23 15:25

(Reply to #3) #4

liuluan002

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Hi DIalog,

I have got the same problem when wake up from the interruption of button press and try to call the function of lld_evt_time_get(), it always return the 0 values, is any way I can fix this problem?

Fri, 2016-01-08 16:52

MT_dialog

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加入:2015 - 06-08 11:34

Hi achao1104,

When issuing the command it doesn't mean that the ble will wake up instantly, it takes about 4-5ms until the waking up is completed.

Thanks MT_dialog