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Adding experimental support for max temperature gueard (M143)

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This commit is contained in:
Nils 2011-05-12 14:26:31 +02:00
parent 140f11833c
commit 38660dbd39
2 changed files with 21 additions and 0 deletions
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14
Tonokip_Firmware/Tonokip_Firmware.pde
View file

@ -83,6 +83,7 @@ void kill(byte debug);
// M92 - Set axis_steps_per_unit - same syntax as G92 // M92 - Set axis_steps_per_unit - same syntax as G92
// M115 - Capabilities string // M115 - Capabilities string
// M140 - Set bed target temp // M140 - Set bed target temp
// M143 - Set maximum hot-end temperature
// M190 - Wait for bed current temp to reach target temp. // M190 - Wait for bed current temp to reach target temp.
@ -170,6 +171,9 @@ unsigned long watchmillis=0;
#ifdef MINTEMP #ifdef MINTEMP
int minttemp=temp2analog(MINTEMP); int minttemp=temp2analog(MINTEMP);
#endif #endif
#ifdef MAXTEMP
int maxttemp=temp2analog(MAXTEMP);
#endif
//Inactivity shutdown variables //Inactivity shutdown variables
unsigned long previous_millis_cmd=0; unsigned long previous_millis_cmd=0;
@ -693,6 +697,9 @@ inline void process_commands()
case 140: // M140 set bed temp case 140: // M140 set bed temp
if (code_seen('S')) target_bed_raw = temp2analogBed(code_value()); if (code_seen('S')) target_bed_raw = temp2analogBed(code_value());
break; break;
case 143: // M143 set maximum hotend temperature
if (code_seen('S')) maxttemp = temp2analog(code_value());
break;
case 105: // M105 case 105: // M105
#if (TEMP_0_PIN>-1) || defined (HEATER_USES_MAX6675) #if (TEMP_0_PIN>-1) || defined (HEATER_USES_MAX6675)
tt=analog2temp(current_raw); tt=analog2temp(current_raw);
@ -1325,6 +1332,12 @@ inline void manage_heater()
if(current_raw<=minttemp) if(current_raw<=minttemp)
target_raw=0; target_raw=0;
#endif #endif
#ifdef MAXTEMP
if(current_raw>maxttemp) {
// We are too hot. Emergency brake to protect hotend
kill(5);
}
#endif
#if (TEMP_0_PIN > -1) || defined (HEATER_USES_MAX66675) #if (TEMP_0_PIN > -1) || defined (HEATER_USES_MAX66675)
#ifdef PIDTEMP #ifdef PIDTEMP
error = target_raw - current_raw; error = target_raw - current_raw;
@ -1528,6 +1541,7 @@ inline void kill(byte debug)
case 2: Serial.print("Linear Move Abort, Last Line: "); break; case 2: Serial.print("Linear Move Abort, Last Line: "); break;
case 3: Serial.print("Homing X Min Stop Fail, Last Line: "); break; case 3: Serial.print("Homing X Min Stop Fail, Last Line: "); break;
case 4: Serial.print("Homing Y Min Stop Fail, Last Line: "); break; case 4: Serial.print("Homing Y Min Stop Fail, Last Line: "); break;
case 5: Serial.print("Hot-end overheat protection, Last Line: "); break;
} }
Serial.println(gcode_LastN); Serial.println(gcode_LastN);
delay(5000); // 5 Second delay delay(5000); // 5 Second delay

7
Tonokip_Firmware/configuration.h
View file

@ -61,6 +61,13 @@ float min_constant_speed_units = 2; // the minimum units of an accelerated move
//The minimal temperature defines the temperature below which the heater will not be enabled //The minimal temperature defines the temperature below which the heater will not be enabled
//#define MINTEMP //#define MINTEMP
//Experimental max temp
//When temperature exceeds max temp, your bot will halt.
//This feature exists to protect your hotend from overheating accidentally, but *NOT* from thermistor short/failure!
//You should use MINTEMP for thermistor short/failure protection.
//Can be customized using M143
//#define MAXTEMP 275
// Select one of these only to define how the nozzle temp is read. // Select one of these only to define how the nozzle temp is read.
#define HEATER_USES_THERMISTOR #define HEATER_USES_THERMISTOR
//#define HEATER_USES_AD595 //#define HEATER_USES_AD595