topic How to use a etimer module calculation program execution time in MCUXpresso SDK

How to use a etimer module calculation program execution time

张松张 — Mon, 04 Jun 2018 08:55:12 GMT

Using SDK etimer configuration module, the realization of the application execution time

Re: How to use a etimer module calculation program execution time

jingpan — Tue, 05 Jun 2018 06:48:14 GMT

Hi,

usually we use systick to count program execution time. It is faster and more close to cpu core. Before you execute a program, you read the timer, and after execution, read again. The execution time is the difference.

Of course you can use other timer, such as PIT, LPTMR or PTM. But almost nobody use them in that way.

Regards,

Jing

Re: How to use a etimer module calculation program execution time

张松张 — Thu, 14 Jun 2018 07:32:01 GMT

Thank you for your reply, now I use SDK configured PIT module to calculate the program execution time function.In addition, I would like to ask a question about whether the STM module must produce an interrupt, whether the interrupt can be shielded.

Look forward to your reply