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Implement M226 - GCode Initiated Pause

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Implemented M226 as described here:
http://reprap.org/wiki/G-code#M226:_Gcode_Initiated_Pause

Waits for pin to be become either HIGH, LOW or the inverse of what it
was before. Allows printing to pause until user interaction
This commit is contained in:
Richard Miles 2013-11-09 00:55:23 +00:00
parent c184f808f7
commit dc887ef99b
1 changed files with 52 additions and 0 deletions
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52
Marlin/Marlin_main.cpp
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@ -139,6 +139,7 @@
// M218 - set hotend offset (in mm): T<extruder_number> X<offset_on_X> Y<offset_on_Y> // M218 - set hotend offset (in mm): T<extruder_number> X<offset_on_X> Y<offset_on_Y>
// M220 S<factor in percent>- set speed factor override percentage // M220 S<factor in percent>- set speed factor override percentage
// M221 S<factor in percent>- set extrude factor override percentage // M221 S<factor in percent>- set extrude factor override percentage
// M226 P<pin number> S<pin state>- Wait until the specified pin reaches the state required
// M240 - Trigger a camera to take a photograph // M240 - Trigger a camera to take a photograph
// M250 - Set LCD contrast C<contrast value> (value 0..63) // M250 - Set LCD contrast C<contrast value> (value 0..63)
// M280 - set servo position absolute. P: servo index, S: angle or microseconds // M280 - set servo position absolute. P: servo index, S: angle or microseconds
@ -2146,6 +2147,57 @@ void process_commands()
extrudemultiply = code_value() ; extrudemultiply = code_value() ;
} }
} }
break;
case 226: // M226 P<pin number> S<pin state>- Wait until the specified pin reaches the state required
{
if(code_seen('P')){
int pin_number = code_value(); // pin number
int pin_state = -1; // required pin state - default is inverted
if(code_seen('S')) pin_state = code_value(); // required pin state
if(pin_state >= -1 && pin_state <= 1){
for(int8_t i = 0; i < (int8_t)sizeof(sensitive_pins); i++)
{
if (sensitive_pins[i] == pin_number)
{
pin_number = -1;
break;
}
}
if (pin_number > -1)
{
st_synchronize();
pinMode(pin_number, INPUT);
int target;
switch(pin_state){
case 1:
target = HIGH;
break;
case 0:
target = LOW;
break;
case -1:
target = !digitalRead(pin_number);
break;
}
while(digitalRead(pin_number) != target){
manage_heater();
manage_inactivity();
lcd_update();
}
}
}
}
}
break; break;
#if NUM_SERVOS > 0 #if NUM_SERVOS > 0