Luminary 3s8962. Can't use GPIO C pins as interrupt source.

[David-n-MO]

I'm trying to use GPIO C-5  as the interrupt source to run a vi and get this error

Build target 'LabVIEW'
compiling ARM_irq.c...
..\Drivers\Interrupt\ARM_irq.c(313): error:  #20: identifier "LM3Sxxxx_GPIOCHandlerP" is undefined
Target not created

It works when selecting GPIO groups a,b and d...

David

[NicB · Accepted solution]

Open your project in Keil uVision and make a little change in ARM_irq.c/line 225:

  LM3Sxxxx_GPIOCAHandlerP to LM3Sxxxx_GPIOCHandlerP

ARM_irq.c is in the "Target Drivers" Group of the LabVIEW project.

To make the change permanent, so you can use GPIOC interrupts in future projects, modify also the file from Template:

<LabVIEW 8.6>\Targets\Keil\Embedded\RealView\EK-LM3S8962\Template\Drivers\Interrupt\ARM_irq.c

[David-n-MO]

What? an NI bug??? Impossible! 🙂

I had seen that, but being a total newbie to this embedded world forgot about uVision and apparently was editing the wrong file.

Thank you... It works fine now.