Kinetis Design StudioのトピックUndeclared funtions and variables

Undeclared funtions and variables

itr1718 — Fri, 01 Jan 2021 01:33:53 GMT

Hello

I am working on kds with MKL27Z256 MCU. I want to print real time and wrote some functions and variables such as clock_gettime, CLOCK_MONOTONIC and struct tm. But I got errors about them. Errors said they are undeclared.

Why is there the problem and how can I solve this?

Happy new year!

Re: Undeclared funtions and variables

danielchen — Wed, 03 Feb 2021 08:01:36 GMT

Hi irt:

The ANSI library provides several functions to get the current time. In an embedded systems environment, implementations for these functions can not be provided because different targets may use different ways to count the time.

I would suggest you write your own functions with the real time clock component on your board.

Regards

Daniel