topic Re: External interrupt setup in fsl_gpio component in Kinetis Software Development Kit

External interrupt setup in fsl_gpio component

matthias — Thu, 26 Feb 2015 08:28:07 GMT

Hello,

I am using the FRDM-K64 board with KDS 2.0 and KSDK 1.1.0. In order to set up an external interrupt on pin B10 i used the fsl_gpio component. I activated code generation under the Events tab for port B in order to enable "PORTB Interrupt". However, I get the following errors in Processor Expert:

It is not possible to choose or write anything in the fields behind "Device" and "Interrupt". Can anyone give me a hint where the device and interrupt settings are made?

Best regards,

Matthias

Re: External interrupt setup in fsl_gpio component

DavidS — Thu, 26 Feb 2015 18:09:58 GMT

Hi Matthias,

Not sure what is going on with your project.

I created a new project that sits in the root folder of the KSDK_1.1.0 folder and attached it.

I quickly setup SW2 as an interrupt source to toggle the GREEN LED on the FRDM-K64F development board.

Try comparing it to your project to see if that helps.

Regards,

David

Re: External interrupt setup in fsl_gpio component

matthias — Fri, 27 Feb 2015 12:25:24 GMT

Hello David,

thank you for your help and the test project. The difference to my project is that I am using MQX whereas you test project i BareMetal. If you change the operating system in the test project to MQX you get a conflict with PORTx_IRQHandler in the gpio component:

I don't know if this conflict is the reason for the errors I got in my project. Anyway, I deleted the gpio component in my project and added it again. Now the Device and Interrupt fields are correctly set to PORTB and INT_PORTB as in your test project. Renaming the Event procedure name solves the name conflict and everything seems OK now.

Best regards

Matthias

Re: External interrupt setup in fsl_gpio component

DavidS — Fri, 27 Feb 2015 20:40:27 GMT

Hi Matthias,

Thank you for sharing what you did to make it work.

Regards,

David