Prusa I3 pro W Extruder not pulse.

[pcomud]

Hi.

My prusa I3pro In Extruder not pulse.
I use a measuring oscilloscope. There are no signs in the extruder.
Using an oscilloscope to measure the x, y, z are billed as a regular signal.
Who knows, please help me. I have taken the clip may not be sharp, sorry.
Link:--> https://youtu.be/VGOtXLhxz04

Sorry for the language I'm not good at.

Thank.

[pcomud]

Hi.

I want E0 to use pin for E1 and pin for E1 use pin for E0. I suspect E0 pin command has a problem inside ATMEGA2560.
How do I edit the code?

Thank.

[pcomud]

Hi

I use a multimeter on my GT2560 board for I3Pro W , it does not match any pin at all. Show on the attached picture red text is the pin that I measured. Who can help me?

Thank.