7 replies to this topic

[kalio20]

Hi,

 

if I set my Digital Input as:

InterruptPort DP09 = new InterruptPort(Pins.GPIO_PIN_D9, false, Port.ResistorMode.PullUp, Port.InterruptMode.InterruptEdgeLevelHigh);

 

it always throws errors and I dont know why, if i use Port.InterruptMode.InterruptEdgeLow instead, everything works fine, it seems it got a Problem with Port.InterruptMode.InterruptEdgeLevelHigh, or I am doin something wrong^^

 

Thanks in advance

 

 

Kalio!

[brianmakabro]

If you want to interrupt on EdgeLevelHigh - is it possible you should maybe use an external pull-down resistor on that line?  

 

Brian 

[kalio20]

Thx for your reply,

 

i set now: 

InterruptPort DP09 = new InterruptPort(Pins.GPIO_PIN_D9, false, Port.ResistorMode.PullDown ,Port.InterruptMode.InterruptEdgeLevelHigh);

as u said.

 

But it still throws errors and stop my programm.

Thanks in advance.

 

kalio

[brianmakabro]

Can you post the code?

[Chris Walker]

Hi kalio20,

"InterruptEdgeLevelHigh" means that you want the interrupt to fire when the level is high--and continue firing over and over and over again until the level goes low.

"InterruptEdgeHigh" means that you want the interrupt to fire once every time the level transitions from low to high.

I think you want the latter one. I'm not sure why the word "edge" made it into the "edgelevelhigh" option...but it can be confusing [And it's InterruptEdgeHigh that's supported in the base BSP.]

Does that help get you on the right path?

Chris

P.S. Thank you for your help on this, brianmakabro! Much appreciated.

[kalio20]

Hi Chris, 

 

thx for your response, but i need the first one, i need the Interrupt as long as it is high. Right know i use the "InterruptEdgeBoth" wich works indirect like the "InterruptEdgeLevelHigh", but i propably fixed it, i am not sure if it works but it will look like this:

 

DP09.ClearInterrupt();

DP09.Resistor = Port.ResistorMode.PullDown;

DP09.Interrupt = Port.InterruptMode.InterruptEdgeLevelHigh;

                            DP09.EnableInterrupt();

 

I have to clear the Interrupt if i switch the Port.Interrupt Mode to LevelHigh or LevelLow. Not sure if it works, will try it soon!

 

Greets

 

kalio.

[EddieGarmon]

kalio20, good try, but that will not work.

 

InteruptMode.InterupEdgeLevelHigh is not supported in the firmware currently.

 

To fake what you want, use InteruptEdgeHigh, and then manually disable and re-enable the interrupt in your handler.

[kalio20]

Thank you very much Eddie Garmon,

 

now one more mystery is solved! I will give it a try with your "fake" method 

 

Greets

 

kalio20