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(21) PT100 for MCUs with 3.3v logic (#16731)

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Artur Petrzak 2020-01-31 01:00:37 +01:00 committed by GitHub
parent 62f52ebb3a
commit e4679c1b78
Signed by: GitHub
GPG key ID: 4AEE18F83AFDEB23
4 changed files with 87 additions and 3 deletions
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3
Marlin/Configuration.h
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@ -379,7 +379,8 @@
* 13 : 100k Hisens 3950 1% up to 300°C for hotend "Simple ONE " & "Hotend "All In ONE"
* 15 : 100k thermistor calibration for JGAurora A5 hotend
* 18 : ATC Semitec 204GT-2 (4.7k pullup) Dagoma.Fr - MKS_Base_DKU001327
* 20 : Pt100 with circuit in the Ultimainboard V2.x
* 20 : Pt100 with circuit in the Ultimainboard V2.x with 5v excitation (AVR)
* 21 : Pt100 with circuit in the Ultimainboard V2.x with 3.3v excitation (STM32 \ LPC176x....)
* 201 : Pt100 with circuit in Overlord, similar to Ultimainboard V2.x
* 60 : 100k Maker's Tool Works Kapton Bed Thermistor beta=3950
* 61 : 100k Formbot / Vivedino 3950 350C thermistor 4.7k pullup

4
Marlin/src/lcd/thermistornames.h
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@ -85,7 +85,9 @@
#elif THERMISTOR_ID == 18
#define THERMISTOR_NAME "ATC Semitec 204GT-2"
#elif THERMISTOR_ID == 20
#define THERMISTOR_NAME "Pt100 UltiMB"
#define THERMISTOR_NAME "Pt100 UltiMB 5v"
#elif THERMISTOR_ID == 21
#define THERMISTOR_NAME "Pt100 UltiMB 3.3v"
#elif THERMISTOR_ID == 201
#define THERMISTOR_NAME "Pt100 OverLord"
#elif THERMISTOR_ID == 60

77
Marlin/src/module/thermistor/thermistor_21.h Normal file
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@ -0,0 +1,77 @@
/**
* Marlin 3D Printer Firmware
* Copyright (c) 2019 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 <http://www.gnu.org/licenses/>.
*
*/
#pragma once
#define REVERSE_TEMP_SENSOR_RANGE
#undef OV_SCALE
#define OV_SCALE(N) (float((N) * 5) / 3.3f)
// Pt100 with INA826 amp with 3.3v excitation based on "Pt100 with INA826 amp on Ultimaker v2.0 electronics"
const short temptable_21[][2] PROGMEM = {
{ OV( 0), 0 },
{ OV(227), 1 },
{ OV(236), 10 },
{ OV(245), 20 },
{ OV(253), 30 },
{ OV(262), 40 },
{ OV(270), 50 },
{ OV(279), 60 },
{ OV(287), 70 },
{ OV(295), 80 },
{ OV(304), 90 },
{ OV(312), 100 },
{ OV(320), 110 },
{ OV(329), 120 },
{ OV(337), 130 },
{ OV(345), 140 },
{ OV(353), 150 },
{ OV(361), 160 },
{ OV(369), 170 },
{ OV(377), 180 },
{ OV(385), 190 },
{ OV(393), 200 },
{ OV(401), 210 },
{ OV(409), 220 },
{ OV(417), 230 },
{ OV(424), 240 },
{ OV(432), 250 },
{ OV(440), 260 },
{ OV(447), 270 },
{ OV(455), 280 },
{ OV(463), 290 },
{ OV(470), 300 },
{ OV(478), 310 },
{ OV(485), 320 },
{ OV(493), 330 },
{ OV(500), 340 },
{ OV(507), 350 },
{ OV(515), 360 },
{ OV(522), 370 },
{ OV(529), 380 },
{ OV(537), 390 },
{ OV(544), 400 },
{ OV(614), 500 }
};
#undef OV_SCALE
#define OV_SCALE(N) (N)

6
Marlin/src/module/thermistor/thermistors.h
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@ -37,7 +37,8 @@
#error "MAX_RAW_THERMISTOR_VALUE is too large for int16_t. Reduce OVERSAMPLENR or HAL_ADC_RESOLUTION."
#endif
#define OV(N) int16_t((N) * (OVERSAMPLENR) * (THERMISTOR_TABLE_SCALE))
#define OV_SCALE(N) (N)
#define OV(N) int16_t(OV_SCALE(N) * (OVERSAMPLENR) * (THERMISTOR_TABLE_SCALE))
#define ANY_THERMISTOR_IS(n) (THERMISTOR_HEATER_0 == n || THERMISTOR_HEATER_1 == n || THERMISTOR_HEATER_2 == n || THERMISTOR_HEATER_3 == n || THERMISTOR_HEATER_4 == n || THERMISTOR_HEATER_5 == n || THERMISTOR_HEATER_6 == n || THERMISTOR_HEATER_7 == n || THERMISTORBED == n || THERMISTORCHAMBER == n || THERMISTORPROBE == n)
@ -105,6 +106,9 @@
#if ANY_THERMISTOR_IS(20) // Pt100 with INA826 amp on Ultimaker v2.0 electronics
#include "thermistor_20.h"
#endif
#if ANY_THERMISTOR_IS(21) // Pt100 with INA826 amp with 3.3v excitation based on "Pt100 with INA826 amp on Ultimaker v2.0 electronics"
#include "thermistor_21.h"
#endif
#if ANY_THERMISTOR_IS(51) // beta25 = 4092 K, R25 = 100 kOhm, Pull-up = 1 kOhm, "EPCOS"
#include "thermistor_51.h"
#endif