how to use hal_timer_start ()

[lee yong jun]

my example  project:  wireless_uart_raw_first_pca10056

chip : nrf52840.

i want to make my application timer in the my example project. time tick is 100 msec. in every 100 msec, i want to do my own work in the my example project.

however,

in wireless_uart_raw_first_pca10056 project, i cannot see these APIs ""   nrf_drv_timer_init, nrf_drv_timer_ms_to_ticks "".

these APIs are shown in the nRF5_SDK_15.3.0_59ac345\nRF5_SDK_15.3.0_59ac345\examples\peripheral\timer.

question is how to make application timer in the  wireless_uart_raw_first_pca10056 project ??

thanks a lot.

[haakonsh]

There are two types of timers in the nRF52 series, a 32.768kHz RTC — Real-time counter, and a 16MHz TIMER — Timer/counter. 

The Application Timer library runs on RTC1, and it seems to be a good fit for your use case. See Application Timer API documentation for reference.

Alternatively, you can use the RTC driver and RTC HAL to set up your own custom LF timer.


See also Timer driver and TIMER HAL for the 16MHz timer.

[awneil]

You could find which SDK examples make use of a particular API call by just searching the 'examples' folder for, eg, "hal_timer_start"

A valuable part of any software developer's toolkit is something that can do searches through groups of files & folder trees...

The standard Linux command-line utility is 'grep' - GUI tools are available for Windows.

A decent programmer's editor should include such a facility (SES has 'find in files').