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- /**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <https://www.gnu.org/licenses/>.
- *
- */
-
- #include "../../inc/MarlinConfig.h"
-
- #if HAS_USER_THERMISTORS
-
- #include "../gcode.h"
- #include "../../module/temperature.h"
-
- /**
- * M305: Set (or report) custom thermistor parameters
- *
- * P[index] Thermistor table index
- * R[ohms] Pullup resistor value
- * T[ohms] Resistance at 25C
- * B[beta] Thermistor "beta" value
- * C[coeff] Steinhart-Hart Coefficient 'C'
- *
- * Format: M305 P[tbl_index] R[pullup_resistor_val] T[therm_25C_resistance] B[therm_beta] C[Steinhart_Hart_C_coeff]
- *
- * Examples: M305 P0 R4700 T100000 B3950 C0.0
- * M305 P0 R4700
- * M305 P0 T100000
- * M305 P0 B3950
- * M305 P0 C0.0
- */
- void GcodeSuite::M305() {
- const int8_t t_index = parser.intval('P', -1);
- const bool do_set = parser.seen("BCRT");
-
- // A valid P index is required
- if (t_index >= (USER_THERMISTORS) || (do_set && t_index < 0))
- SERIAL_ECHO_MSG("!Invalid index. (0 <= P <= ", USER_THERMISTORS - 1, ")");
- else if (do_set) {
- if (parser.seenval('R')) // Pullup resistor value
- if (!thermalManager.set_pull_up_res(t_index, parser.value_float()))
- SERIAL_ECHO_MSG("!Invalid series resistance. (0 < R < 1000000)");
-
- if (parser.seenval('T')) // Resistance at 25C
- if (!thermalManager.set_res25(t_index, parser.value_float()))
- SERIAL_ECHO_MSG("!Invalid 25C resistance. (0 < T < 10000000)");
-
- if (parser.seenval('B')) // Beta value
- if (!thermalManager.set_beta(t_index, parser.value_float()))
- SERIAL_ECHO_MSG("!Invalid beta. (0 < B < 1000000)");
-
- if (parser.seenval('C')) // Steinhart-Hart C coefficient
- if (!thermalManager.set_sh_coeff(t_index, parser.value_float()))
- SERIAL_ECHO_MSG("!Invalid Steinhart-Hart C coeff. (-0.01 < C < +0.01)");
- } // If not setting then report parameters
- else if (t_index < 0) { // ...all user thermistors
- LOOP_L_N(i, USER_THERMISTORS)
- thermalManager.M305_report(i);
- }
- else // ...one user thermistor
- thermalManager.M305_report(t_index);
- }
-
- #endif // HAS_USER_THERMISTORS
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