topic Re: Getting started with an MK20DN in Kinetis Microcontrollers

Getting started with an MK20DN

ryan_pearson — Fri, 22 Mar 2019 10:50:51 GMT

I am trying to get started with an MK20DN64VFM5 that we've committed to using on our board. I've tried several ways to get it going with no luck. I tried the getting started steps for the FRDM-K20D50M found here.

FRDM-K20D50M|Freedom Development Platform|Kinetis | NXP

I hit a snag in the getting started guide when the hello world project does not build in IAP.

I have also tried generating a simple project with KDS, and choosing MK20DN64xxx5 as the device. It builds. I tried to debug with a segger j-link to no avail.

Can you provide the settings I should use in the debug configuration GUI for a j-link? Is there a better getting started guide I should follow?

Re: Getting started with an MK20DN

Sabina_Bruce — Fri, 22 Mar 2019 16:22:36 GMT

Hello Ryan,

From the behavior you are experiencing I would recommend checking the hardware on your board and making sure it is the same as the debugger in the Kinetis Peripheral Module Quick Reference. I would also make sure you have the latest Segger drivers you can use the following document as a reference:

Updating Segger Tools in Eclipse Kinetis Design Studio | MCU on Eclipse

Once you have reviewed the hardware on your board and updated the drivers try running your simple project on KDS again and let me know the results.

Thank you,

Sabina

Re: Getting started with an MK20DN

ryan_pearson — Fri, 22 Mar 2019 16:46:24 GMT

Thank you, we did discover a hardware problem and are now able to debug with our j-link.

I'm now building and debugging with KDS. I tried to configure and toggle a port pin with no luck so far. I suspect I'm missing a lot of processor initialization code in my project, and I am now planning on copying one of the IAR examples into KDS.

Re: Getting started with an MK20DN

Sabina_Bruce — Fri, 22 Mar 2019 18:14:16 GMT

Hi Ryan,

Thats good news!

You can also take a look at the following examples for the K20. It may help you as reference, let me know if you need anything else.

Kinetis 50MHz bare metal sample code

Thank you,

Sabina

Re: Getting started with an MK20DN

ryan_pearson — Fri, 22 Mar 2019 18:56:12 GMT

Thanks, I'm having trouble porting the IAR/CW code intro KDS, however. I managed to compile it, but received a code generation error. Is there an example made for KDS?

Re: Getting started with an MK20DN

ryan_pearson — Fri, 22 Mar 2019 19:04:33 GMT

Alternately, I'm having trouble building examples in IAR. I get the error "Cannot open source file "freedom.h". I'm not sure where to add search paths, if that's my issue in IAR.

Re: Getting started with an MK20DN

ryan_pearson — Fri, 22 Mar 2019 19:07:06 GMT

Actually, I see the include directories under Pre-processor. "$PROJ_DIR$\..\..\..\src\platforms" is already there, where the freedom.h file resides.

Re: Getting started with an MK20DN

mjbcswitzerland — Sat, 23 Mar 2019 01:07:47 GMT

https://github.com/uTasker/uTasker-Kinetis
FRDM-K20D50M supported in KDS and IAR

http://www.utasker.com/kinetis/compilers.html
https://www.youtube.com/watch?v=K8ScSgpgQ6M

Download, build and productive work can begin.....

Regards

Mark