[NCS2.2.0] APP Core is time-synchronized with NET Core timer.

[zero]

Dear Support Team,
The nRF5340's app Core and net Core both use timer, how can I realize that app Core and net Core Timer are time synchronized and can clear the timer at the same time? Are there any examples?

[Elfving]

Hello Kyrie,

This controller on the network core is closed source unfortunately, I am looking into getting some info about it.

But I just found out that it would be better if you could avoid copying this code, as it is a copyright of Packetcraft (our LE Audio partners) - it doesn't belong to us. If you could use the RTC sample, that is probably safer. Though I understand that porting it to NCS 1.7 could be hard.

Kyrie.Li said:

2. Another point is that I don't understand what you mean by SDC.

Soft device controller, ie. the closed source Bluetooth stack that is usually running on the network core.

Regards,

Elfving

[Kyrie.Li]

Hi Hi Elfving，

If we can't get the information about the network core code, then we can only try to port the RTC routines of 2.2.0 to 1.7.0. I hope you can provide some help, such as directly operating the registers to realize such a function? You are more familiar with this aspect, I am also trying to transplant.

Regards,

Kyrie

[Elfving]

Kyrie.Li said:

If we can't get the information about the network core code,

He wouldn't be able to get the code itself, no. 

Kyrie.Li said:

then we can only try to port the RTC routines of 2.2.0 to 1.7.0.

That would be best. 

Kyrie.Li said:

I hope you can provide some help, such as directly operating the registers to realize such a function?

I will of course try to help you with this. Though I am little but concerned about your timeframe - that you had to get this completed within a few days? 

Regards,

Elfving

[Kyrie.Li]

Hi Hi Elfving，

Yes, I need to get this done by February 26th. In addition, the RPMsg Service component is useful in my current program code. Please pay attention to see if there is any conflict when implementing related functions. You can implement it first, and hope that this function can be implemented in the next few days.

Regards,

Kyrie

[Elfving]

Hello everyone.

Here is the sample ported down for you. I had a coworker do it, and since he only had NCS 1.8 downloaded at the time, that is what he used. It probably works on NCS 1.7 as well, and if it doesn't I don't think it would be a lot of hassle to port it down again.

sync_timer_nrf5340_v2.zip

Regards,

Elfving