FHB and Interrupts
FHB and Interrupts
I've been working on a project that requires 2 flow sensors running on the standard interrupt pins (2,3). With only one flow sensor attached it works perfectly. However, when I attach the second sensor it causes only one of them to work, in that interrupts won't occur for the second sensor despite the same settings with a different pin. According to the Schematic for the FHB there's nothing on pins 2 and 3....but reading through some of the MAX code I did see there's a few interrupts, but I'm not sure what exactly they refer to. I guess the simple question is, how many interrupts will function correctly on the FHB?
Re: FHB and Interrupts
motarius,
There are no connections to pins two and three in the schematic, so I think you are probably dealing with a software issue. That said it's also possible that the Max code is messing with the pins unnecessarily - due some legacy code that we didn't really rethink or repurpose. Sorry I can't provide much more than that as a clue. I haven't really made a project with the board that is interrupt driven. Mostly just reading analog sensors.
As a quick workaround and test - in addition to just commenting out pin interrupts in the code, you could use a pin change interrupt on another pin - you can find the code in the Arduino playground. Good luck with it and any report you care to make on your progress would be appreciated here.
Paul
There are no connections to pins two and three in the schematic, so I think you are probably dealing with a software issue. That said it's also possible that the Max code is messing with the pins unnecessarily - due some legacy code that we didn't really rethink or repurpose. Sorry I can't provide much more than that as a clue. I haven't really made a project with the board that is interrupt driven. Mostly just reading analog sensors.
As a quick workaround and test - in addition to just commenting out pin interrupts in the code, you could use a pin change interrupt on another pin - you can find the code in the Arduino playground. Good luck with it and any report you care to make on your progress would be appreciated here.
Paul