> Hi Maarten > > I think you are missing the required 1kohm resistor on your irq line :-) > > /Sean Hello Sean, You're right, I don't have 1k. Instead I have the weak internal pull up of the raspberry pi enabled, which gives ~50k. If 1k should solve it, then 50k should give me max ~50 spurious interrupts. Instead I see 150.000. And according to this page http://www.mosaic-industries.com/embedded-systems/microcontroller-projects/raspberry-pi/gpio-pin-electrical-specifications#tab1 the raspberry pi input should even have hysteresis which means a slow rising signal should not generate bounce-like behavior. I can only hope the hysteresis is enabled when the pin is configured for interrupt. I am not convinced this is the problem. Maarten -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
