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[2.0.x] Add endstop noise filter (#10796)

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Scott Lahteine
2018-05-21 15:51:38 -05:00
committed by GitHub
parent 65a004564c
commit 4b2f6e3b2b
73 changed files with 1379 additions and 132 deletions
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17
Marlin/src/config/examples/BIBO/TouchX/cyclops/Configuration.h
View File

@@ -553,6 +553,23 @@
// This will remove the need to poll the interrupt pins, saving many CPU cycles.
//#define ENDSTOP_INTERRUPTS_FEATURE
/**
* Endstop Noise Filter
*
* Enable this option if endstops falsely trigger due to noise.
* NOTE: Enabling this feature means adds an error of +/-0.2mm, so homing
* will end up at a slightly different position on each G28. This will also
* reduce accuracy of some bed probes.
* For mechanical switches, the better approach to reduce noise is to install
* a 100 nanofarads ceramic capacitor in parallel with the switch, making it
* essentially noise-proof without sacrificing accuracy.
* This option also increases MCU load when endstops or the probe are enabled.
* So this is not recommended. USE AT YOUR OWN RISK.
* (This feature is not required for common micro-switches mounted on PCBs
* based on the Makerbot design, since they already include the 100nF capacitor.)
*/
//#define ENDSTOP_NOISE_FILTER
//=============================================================================
//============================== Movement Settings ============================
//=============================================================================

17
Marlin/src/config/examples/BIBO/TouchX/default/Configuration.h
View File

@@ -553,6 +553,23 @@
// This will remove the need to poll the interrupt pins, saving many CPU cycles.
//#define ENDSTOP_INTERRUPTS_FEATURE
/**
* Endstop Noise Filter
*
* Enable this option if endstops falsely trigger due to noise.
* NOTE: Enabling this feature means adds an error of +/-0.2mm, so homing
* will end up at a slightly different position on each G28. This will also
* reduce accuracy of some bed probes.
* For mechanical switches, the better approach to reduce noise is to install
* a 100 nanofarads ceramic capacitor in parallel with the switch, making it
* essentially noise-proof without sacrificing accuracy.
* This option also increases MCU load when endstops or the probe are enabled.
* So this is not recommended. USE AT YOUR OWN RISK.
* (This feature is not required for common micro-switches mounted on PCBs
* based on the Makerbot design, since they already include the 100nF capacitor.)
*/
//#define ENDSTOP_NOISE_FILTER
//=============================================================================
//============================== Movement Settings ============================
//=============================================================================