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add I parameter to M42 to allow access to sensitive pins

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Roxy-3D 2018-08-13 14:59:29 -05:00 committed by Scott Lahteine
parent 11b411a872
commit fd15b1495a
1 changed files with 2 additions and 1 deletions
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3
Marlin/src/gcode/control/M42.cpp
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@ -32,6 +32,7 @@
* P1_20 as M42 P120, etc.
*
* S<byte> Pin status from 0 - 255
* I Flag to ignore Marlin's pin protection
*/
void GcodeSuite::M42() {
if (!parser.seenval('S')) return;
@ -42,7 +43,7 @@ void GcodeSuite::M42() {
const pin_t pin = GET_PIN_MAP_PIN(pin_index);
if (pin_is_protected(pin)) return protected_pin_err();
if (!parser.boolval('I') && pin_is_protected(pin)) return protected_pin_err();
pinMode(pin, OUTPUT);
digitalWrite(pin, pin_status);