TIMER counter

The sample demonstrates a basic functionality of the nrfx_timer driver in Timer and Counter modes.

Requirements

The sample supports the following development kits:

Board	Support
nrf52dk_nrf52832	Yes
nrf52833dk_nrf52833	Yes
nrf52840dk_nrf52840	Yes
nrf5340dk_nrf5340	Yes
nrf9160dk_nrf9160	Yes

Overview

Application initializes the nrfx_timer driver. The @p timer_handler() is executed in the following situations:

• Regularly after a specified time (@p TIME_TO_WAIT_MS).
• When the counter value is equal to @p COUNTER_MAX_VAL.

For more information, see TIMER driver - nrfx documentation.

Wiring

To run this sample, no special configuration is needed. You should monitor the output from the board to check if it is as expected.

Building and running

To run this sample, build it for the appropriate board and then flash it as per instructions in Building and running(@ref building_and_running) section.

Sample output

You should see the following output:

- "Starting nrfx_timer basic counter example."
- "Time between timer ticks: 1000 ms"
- "Timer status: enabled"
- "Counter status: enabled"
- "Timer: 1"
- "Timer: 2"
- "Timer: 3"
- "Counter: 1 / 3"
- "Timer: 1"
- "Timer: 2"
- "Timer: 3"
- "Counter: 2 / 3"
- "Timer: 1"
- "Timer: 2"
- "Timer: 3"
- "Counter finished"
- "Counter: 3 / 3"
- "Timer status: disabled"
- "Counter status: disabled"