topic Re: Getting Started with KL25z in Kinetis Microcontrollers

Getting Started with KL25z

MihaelF — Mon, 28 Sep 2020 14:44:20 GMT

Hello,

I'll start by saying I'm totally new to any MCU's programming, so feel free to tell me to read some docs before I ask questions, but point out which docs...

So, I'm working with frdm-kl25z. I did all the set-up as mentioned in the getting started tutorial. And then I started to try to create something on my own.

So, in the hello_world example it has LED1_EN command. And it is defined in the board.h file in the project as GPIO_DRV_OutputPinInit function in fsl_gpio_driver.h which is in the platform_lib...

Now is the question. I see that many basic (or maybe not only) functions are already defined in the included *.h files. Is there any list of them? Is there some basic tutorial/manual/something how to communicate with the MCU? Is it a standard API for this type of controller or is it a board specific?

Where i should start, besides following the examples. Because one day i may need something that is not given in the example i guess

Thanks!

Re: Getting Started with KL25z

diego_charles — Thu, 01 Oct 2020 18:06:35 GMT

Hi Michael,

The MCUXpresso SDK has a standard API for the NXP MCUs. Several API functions may differ because of driver deltas across several MCU families.

To help you further to get started, it may help the following:

Check the MCUXpresso SDK API Reference Manual for the MKL25Z4 to get an overview of the available API functions of the FRDM-KL25Z SDK, here are some options to do this:

1 https://mcuxpresso.nxp.com/api_doc/dev/1364/index.html

2 Download the API reference manual after build an SDK from MCUXpresso SDK builder.

3 A cool feature of MCUXpresso IDE is that lets you open SDK documentation from a previously installed SDK.

You can also check the MCUXpresso config tools, it enables you to configure with ease peripherals, pins and clocks using a graphical interface.

Here, is a neat training series.

Basic Application Development Using MCUXpresso IDE and MCUXpresso Config Tools

Another advise is to take a look at the Erich Styger blog MCU on eclipse https://mcuoneclipse.com/

He has useful tutorials for the FRDM boards ( including KL25Z) .

There are a lot of ways to get started, and they depend on what do you want to achieve, in this community we have several document and posts that may help you. I also recomend you to take a look at our application notes for the KL25 or Kinetis MCus.

I hope this helps,

BR,

Diego

Re: Getting Started with KL25z

mjbcswitzerland — Thu, 01 Oct 2020 21:50:13 GMT

https://github.com/uTasker/uTasker-Kinetis
https://www.utasker.com/kinetis/FRDM-KL25Z.html
https://www.utasker.com/kinetis/TWR-KL25Z48M.html
https://www.utasker.com/docs/KINETIS/uTaskerV1.4_Kinetis.pdf
https://www.utasker.com/docs/documentation.html
https://www.youtube.com/watch?v=kWNlsAoMly4&list=PLWKlVb_MqDQFZAulrUywU30v869JBYi9Q

Everything, including KL25 simulation of interrupts, DMA, peripherals, to become a KL25 pro in a few days.

Regards

Mark