Multiple GPIOE Interrupts causing issues with CAN Bus

RE: Multiple GPIOE Interrupts causing issues with CAN Bus

Mark G. — Wed, 13 Aug 2025 14:08:41 GMT

The problem has been solved. Deactivating the button0 in the dts was one step. But another one was due to calling the can send method from interrupt context, which it cannot handle. Thanks!

RE: Multiple GPIOE Interrupts causing issues with CAN Bus

Sigurd — Tue, 12 Aug 2025 12:23:31 GMT

Do you have any logs that could give some more clues? (either UART or Segger RTT backend logs)

RE: Multiple GPIOE Interrupts causing issues with CAN Bus

Mark G. — Tue, 12 Aug 2025 05:52:48 GMT

Hi,

I removed button0 from my dts, but I still see the same issue. Here it is:

devzone.nordicsemi.com/.../5040.zephyr.dts

Any more ideas?

RE: Multiple GPIOE Interrupts causing issues with CAN Bus

Sigurd — Sun, 10 Aug 2025 19:33:21 GMT

[quote user="Mark G."]he Setup for the gpio is also still defined for button0. Not sure if this is a problem.[/quote]

Yes, I see the same. Please try to remove button0

RE: Multiple GPIOE Interrupts causing issues with CAN Bus

Mark G. — Thu, 07 Aug 2025 13:04:38 GMT

I attached the compiled zephyr.dts

Important for us the following pin:

	/* node '/gpio_keys' defined in ../git/e-shift/firmware/build_gear/zephyr/board_overlays/gear.overlay:14 */
	gpio_keys {
		compatible = "gpio-keys"; /* in ../git/e-shift/firmware/build_gear/zephyr/board_overlays/gear.overlay:15 */

		/* node '/gpio_keys/input_fast' defined in ../git/e-shift/firmware/build_gear/zephyr/board_overlays/gear.overlay:17 */
		input_fast: input_fast {
			gpios = < &gpio0 0xd 0x10 >; /* in ../git/e-shift/firmware/build_gear/zephyr/board_overlays/gear.overlay:18 */
		};
	};

and the can setup. The Setup for the gpio is also still defined for button0. Not sure if this is a problem.

devzone.nordicsemi.com/.../8032.zephyr.dts

RE: Multiple GPIOE Interrupts causing issues with CAN Bus

Sigurd — Thu, 07 Aug 2025 12:52:22 GMT

Hi!

That sounds strange, could you check the compiled device tree (zephyr.dts), and see if GPIOs etc are set correctly there as well?