Timer - nRF52833

[Nguyen Trong Tuan]

Hello everyone,

I'm a fresher of programming nRF52833. I'm working with Timer and I have some questions like this:

1. Can I use several timer in an application? I mean I want to use 4 timer for 4 GPIOTE. Is that possible to do??
2. How can I measure the time difference between 2 separate 2 events?? I want to calculate the time between event A and event B and event B happen after event.

I hope to see the answer as soon as possible . Thanks.

Best regards!!

[Jørgen Holmefjord]

Hi,

1. Yes, the nRF52833 has 5 TIMER instances available. Instance 0 is used by the softdevice, if you are using that. The others are available for use by the application.

2. This depends a bit on which events you are referring to, and what the goal you are trying to achieve is. You can use a TIMER to measure the time, by connecting the two events to the timer's START and CAPTURE tasks, then read out the count from the CC register in an interrupt handler, etc., and convert this to elapsed time from the frequency that the timer was running at.

Best regards,
Jørgen

[Nguyen Trong Tuan]

Hi, thanks for your reply

1. So if I want to use other TImer, what should I declare?

2. Are there any example code about this? I need some references for this stuff!!!

Thanks,

Best regards,