[FR] Endstop interrupt for only Z axis

[mikeshub]

Description

I wanted the Z axis endstop on my SKR1.3 Creator Pro to be on an interrupt. There was only one pin suitable for endstop interrupt. To get around this I just commented out the code in setup_endstop_interrupts for the relevant X and Y defines. This worked great. I now get the improved precision of the Z axis endstop on an interrupt. The X and Y don't benefit from being on an interrupt nearly as much as the Z does. The SKR1.3 can't be the only board that for some reason didn't use interrupt pins for the endstops. The only interrupt capable pin I could find was at the servo connector. Buy commented out code isn't exactly "production ready."

Steps to Reproduce

We need something better than this:

#if HAS_X_MAX // #if !LPC1768_PIN_INTERRUPT_M(X_MAX_PIN) // #error "X_MAX_PIN is not an INTERRUPT capable pin." // #endif // attachInterrupt(digitalPinToInterrupt(X_MAX_PIN), endstop_ISR, CHANGE); #endif #if HAS_X_MIN #if !LPC1768_PIN_INTERRUPT_M(X_MIN_PIN) #error "X_MIN_PIN is not an INTERRUPT capable pin." #endif attachInterrupt(digitalPinToInterrupt(X_MIN_PIN), endstop_ISR, CHANGE); #endif #if HAS_Y_MAX // #if !LPC1768_PIN_INTERRUPT_M(Y_MAX_PIN) // #error "Y_MAX_PIN is not an INTERRUPT capable pin." // #endif // attachInterrupt(digitalPinToInterrupt(Y_MAX_PIN), endstop_ISR, CHANGE); #endif

[mikeshub]

Actually this isn't working how I thought.

[Virtualight]

The servo pins on SKR1.3 are designed to be used for BLTouch z-probe which makes sense for it to be interrupt capable...

[github-actions[bot]]

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