1 week ago
Wakeup from BLE deep sleep using BLE timer
Posted byJin-Hoon Kim60 points 4 repliesHi Dialog,
I am trying to make a BLE sleep mode on for certain time period to reduce a power consumption.
基于DA14585数据表我连接,我s instruction for program BLE sleep mode and wakeup in page 136 and 137.
As I understand, when I set the timing of BLE_WAKEUP_LP_IRQ generation by setting BLE_ENBPRESET_REG register, programming the sleep duration of the BLE using BLE_DEEPSLWKUP_REG, and finally setting BLE_DEEPSLCNTL_REG[DEEP_SLEEP_ON] register, I can make BLE sleep mode.
Based on this I can make the device goes into the BLE sleep mode, which stops advertising. However, even after sleep duration expired, the BLE does not wakeup.
I thought after the sleep duration expires, system automatically set BLE_WAKEUP_LP_IRQ interrupt to wakeup the device. Did I misunderstand?
Could you let me know how can I wakeup from the BLE sleep mode after programmed sleep duration?
Thank you!
Jin-Hoon
| Attachment | Size |
|---|---|
| da14585_datasheet_3v3.pdf | 5.06 MB |
1 week ago
Hi Dialog,
Thanks for the answer and comments.
The reason why I use registers written in the datasheet was that I want to wakeup from the BLE sleep mode after certain period of time, using a timer.
When I define CFG_DEEP_SLEEP_WAKEUP_GPIO or CFG_DEEP_SLEEP_WAKEUP_POR to wakeup the device, I think I cannot use a timer. Is it right?
If so, could you let me know how can I use a timer to wakeup the DA14585 from deep sleep mode?
Thank you!
Jin-Hoon
1 week ago
Hi Jin-Hoon Kim,
As mentioned in my previous reply and according to the suggested tutorial, then then DA14585 is configured in deep sleep mode, it can wake up only via a GPIO trigger in the WAKEUP controller or via POR.
It is recommended to use the SDK APIs instead of using the registers directly.
Thanks, PM_Dialog
1 week ago
Hi Dialog,
Thank you for the reply. I will try GPIO trigger to wakeup the device.
By the way, I want to ask you about one more question.
When I used proxy_reporter tutorial based on following instructions, I cannot wakeup the device from deep sleep mode.
Even when I used power on reset (POR) setting and pressed SW1/RESET button on the mother board, the system did not wakeup.
Is there any further setting for software or hardware to wakeup from deep sleep?
I am using Pro Development Kit.
Thank you.
Jin-Hoon
1 week ago
Hi Jin-Hoon Kim,
Thanks for your question online. Since you are using deep sleep mode, I would recommend using our SDK APIs. To put the device into deep sleep mode, the arch_set_deep_sleep() API should be used.
The DA14585 can wake up from deep sleep from POR pin or GPIO only via the wake-up controller.
http://lpccs-docs.dialog-semiconductor.com/DA14531_Sleep_Mode/deepsleep_config.html
Please see the following tutorial. You could use the pxp_reporter example from the SDK and test the deep sleep.
You should define the CFG_APP_GOTO_DEEP_SLEEP macro in user_proxr.h. Once the device stops advertising, the app_advertise_complete() will be triggered which calls the put_system_into_deep_sleep().
The put_system_into_deep_sleep() configured the wake-up controller as a wake-up source and puts the system into deep sleep mode. If the CFG_DEEP_SLEEP_WAKEUP_POR is defined, the DA14585 can wake up from a POR.
Thanks, PM_Dialog