How to fast capture GPIO pin from a low to a high level at TX1 R28.1?
Not really understand your question.
I need fast process the GPIO pin level change.
The GPIO pin at low level,then to high level,now How can I capture this Event？
Do you want to know the time of the level change?
I don’t think any software method what I think only the scope.
1.No,I does not know.
Does can use the GPIO interrupt capture this event?
How can do this?
Have a check gpio_to_irq() and request_irq() kernel API.
How can use gpio_to_irq() and request_irq() kernel API?
Can you offert an example?
It’s kernel API, you should be able get it by googling it.