I'm still using the DA14695 USB-DevKit and modified the pxp_reporter example, where I modified main.c and replaced pxp_reporter_task.c with blinker_task.c, which you can see here:
https://gist.github.com/tetrodoxin/34c8a2ef9af80b0d3e30c4d213b5ca40.
When I build an flash it, I can start it and the LED blinks, for about 4 seconds, then the program seems to freeze, and the LED stays in one state, depending on the used timer delay.
Also, the callOS_TASK_DELETE(OS_GET_CURRENT_TASK());in system_init() never returns. I don't know, if this is connected, but I also don't know where to look for the problem.
Any suggestions? Thanks in advance!
Device:
Hi ZephraimMcKladden,
请您在调试模式下运行它，并在冻结的位置指定吗？
Thanks, PM_Dialog
Unfortunately not.
As I described in this topic:
https：//support.dialog-semicondiondiondum/forums/post/dialog-smartbond-bl ...
I'm currently not able to run my projects in DebugMode on my 14695 USB-Kit (not Pro-DK).
And as I altered the timer delay value, I observed, that it's not a matter of how many executions, but a matter of time (about 4sec) till it freezes.
And regarding my second question:
它可能是正常的，任何代码之后OS_TASK_DELETE(OS_GET_CURRENT_TASK());is never executed, because that call ends the current task completely?
Meanwhile I found out:
As my example is based on pxp_reporter, there's a lot of BLE stuff in it. If I rewrite the original pxp_reporter to always blink the LED, that works. If I remove the BLE functions step by step it ends with the function ble_enable(), if I remove that, the freezing occurs after some seconds. So... maybe the device goes into some kind of sleep, which is prevented by the BLE functions??? Possible?
Hi ZephraimMcKladden,
Not sure what the steps you have done, but glad that you go it working. Yes, the pxp_reporter project of the SDK uses sleep mode by default – please check pm_sleep_mode_set(pm_mode_extended_sleep); in the system_init(). When the system is in any of the available sleep mode, all the peripheral domains are powered down.
Thanks, PM_Dialog
I also tried to use pm_sleep_mode_set(pm_active) but the "freeze" still occurs.
What triggers the power down?
And how is BLE-Manager preventing it?
Does an GPIO Pin still be powered on, even in extended sleep mode?
Hi ZephraimMcKladden,
延迟道歉。你能请注明w吗here the code freezes?
Thanks, PM_Dialog
As I said:
It's not a special piece of code, where it freezes, it's the time.
Therefore I guess, it's entering sleep mode. Is there any way I can totally disable sleep mode?
Hi ZephraimMcKladden,
Still I am not able to understand what you mean with this : “It's not a special piece of code, where it freezes, it's the time.”
Normally, if you attach the debug ger, you should be able to check where is freezes. Is it a WDOG expiration? Assertion? NMI?
To disable the sleep mode, you should call pm_sleep_mode_set(pm_active).
Thanks, PM_Dialog
What I mean is:
I have a timer set and a task, waiting to be notified by that timer (OS_TASK_NOTIFY_WAIT after sys_watchdog_suspend). After being notified, all the loop does is toggling the green LED. Now, if I change the timer intervall, that loop might run 20 times (for short intervals) or only 2 times (for long intervals), but in total, the LED never blinks longer than 5 seconds.
Hence, I conclude, that it is not a single point/step/command/function call in the code, that causes the sleep. I guess, the device is just going into sleep mode after a certain time (4-5 seconds).
I triedpm_sleep_mode_set(pm_mode_active);inside the system_init task (as this is a FreeRTOS project) but this doesn't seem to have any effect.
And as I wrote further above, if I use function ble_enable() and thus enable the Bluetooth functionality, that seems to prevent the sleep. But is that meant to be the only way to keep the 1469x awake?
What am I missing here?
Meanwhile I found, if I run the example in Debug Mode, it doesn't go to sleep, thus my observed "freeze" does not occur.
Here, the used example was the freertos_retarget project from the SDK. I still have no clue, how to prevent sleep mode, when using FreeRTOS. Again:pm_sleep_mode_set(pm_mode_active);does nothing.
Hi ZephraimMcKladden,
How did you check that it doesn’t got into sleep?
Thanks, PM_Dialog