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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_START();
SERIAL_ECHOLNPAIR("!Invalid index. (0 <= P <= ", int(USER_THERMISTORS - 1), ")");
}
else if (do_set) {
if (parser.seen('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.seen('T')) // Resistance at 25C
if (!thermalManager.set_res25(t_index, parser.value_float()))
SERIAL_ECHO_MSG("!Invalid 25C resistance. (0 < T < 10000000)");
if (parser.seen('B')) // Beta value
if (!thermalManager.set_beta(t_index, parser.value_float()))
SERIAL_ECHO_MSG("!Invalid beta. (0 < B < 1000000)");
if (parser.seen('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.log_user_thermistor(i);
}
else // ...one user thermistor
thermalManager.log_user_thermistor(t_index);
}
#endif // HAS_USER_THERMISTORS
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