Maxim Integrated / Mbed OS DS1775_Digital_Thermostat_Temperature

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Dependencies:   max32630fthr DS1775_Digitial_Thermometer_Thermostat USBDevice

main.cpp@0:252077cb2ac5, 2019-04-07 (annotated)

Committer:
phonemacro
Date:
Sun Apr 07 07:33:09 2019 +0000
Revision:
0:252077cb2ac5
Child:
1:72ad3ee71812
Rough Initial Commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
phonemacro 0:252077cb2ac5 1 /*******************************************************************************
phonemacro 0:252077cb2ac5 2 * Copyright (C) 2019 Maxim Integrated Products, Inc., All Rights Reserved.
phonemacro 0:252077cb2ac5 3 *
phonemacro 0:252077cb2ac5 4 * Permission is hereby granted, free of charge, to any person obtaining a
phonemacro 0:252077cb2ac5 5 * copy of this software and associated documentation files (the "Software"),
phonemacro 0:252077cb2ac5 6 * to deal in the Software without restriction, including without limitation
phonemacro 0:252077cb2ac5 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
phonemacro 0:252077cb2ac5 8 * and/or sell copies of the Software, and to permit persons to whom the
phonemacro 0:252077cb2ac5 9 * Software is furnished to do so, subject to the following conditions:
phonemacro 0:252077cb2ac5 10 *
phonemacro 0:252077cb2ac5 11 * The above copyright notice and this permission notice shall be included
phonemacro 0:252077cb2ac5 12 * in all copies or substantial portions of the Software.
phonemacro 0:252077cb2ac5 13 *
phonemacro 0:252077cb2ac5 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
phonemacro 0:252077cb2ac5 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
phonemacro 0:252077cb2ac5 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
phonemacro 0:252077cb2ac5 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
phonemacro 0:252077cb2ac5 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
phonemacro 0:252077cb2ac5 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
phonemacro 0:252077cb2ac5 20 * OTHER DEALINGS IN THE SOFTWARE.
phonemacro 0:252077cb2ac5 21 *
phonemacro 0:252077cb2ac5 22 * Except as contained in this notice, the name of Maxim Integrated
phonemacro 0:252077cb2ac5 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
phonemacro 0:252077cb2ac5 24 * Products, Inc. Branding Policy.
phonemacro 0:252077cb2ac5 25 *
phonemacro 0:252077cb2ac5 26 * The mere transfer of this software does not imply any licenses
phonemacro 0:252077cb2ac5 27 * of trade secrets, proprietary technology, copyrights, patents,
phonemacro 0:252077cb2ac5 28 * trademarks, maskwork rights, or any other form of intellectual
phonemacro 0:252077cb2ac5 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
phonemacro 0:252077cb2ac5 30 * ownership rights.
phonemacro 0:252077cb2ac5 31 *******************************************************************************
phonemacro 0:252077cb2ac5 32 */
phonemacro 0:252077cb2ac5 33 #include "mbed.h"
phonemacro 0:252077cb2ac5 34 #include "max32630fthr.h"
phonemacro 0:252077cb2ac5 35 #include "max31875.h"
phonemacro 0:252077cb2ac5 36 #include "max31875_cpp.h"
phonemacro 0:252077cb2ac5 37 #include "USBSerial.h"
phonemacro 0:252077cb2ac5 38
phonemacro 0:252077cb2ac5 39 MAX32630FTHR pegasus(MAX32630FTHR::VIO_3V3);
phonemacro 0:252077cb2ac5 40
phonemacro 0:252077cb2ac5 41 DigitalOut rLED(LED1);
phonemacro 0:252077cb2ac5 42 DigitalOut gLED(LED2);
phonemacro 0:252077cb2ac5 43 DigitalOut bLED(LED3);
phonemacro 0:252077cb2ac5 44
phonemacro 0:252077cb2ac5 45 I2C i2cBus(P3_4, P3_5);
phonemacro 0:252077cb2ac5 46
phonemacro 0:252077cb2ac5 47 // main() runs in its own thread in the OS
phonemacro 0:252077cb2ac5 48 // (note the calls to Thread::wait below for delays)
phonemacro 0:252077cb2ac5 49 /**
phonemacro 0:252077cb2ac5 50 * @brief Sample main program for MAX31875
phonemacro 0:252077cb2ac5 51 * @version 1.0000.0000
phonemacro 0:252077cb2ac5 52 *
phonemacro 0:252077cb2ac5 53 * @details Sample main program for MAX31875
phonemacro 0:252077cb2ac5 54 * The prints are sent to the terminal window (9600, 8n1).
phonemacro 0:252077cb2ac5 55 * The program sets the GPIOs to 1.8V and the program
phonemacro 0:252077cb2ac5 56 * configures the chip and reads temperatures.
phonemacro 0:252077cb2ac5 57 * To run the program, drag and drop the .bin file into the
phonemacro 0:252077cb2ac5 58 * DAPLINK folder. After it finishes flashing, cycle the power or
phonemacro 0:252077cb2ac5 59 * reset the Pegasus (MAX32630FTHR) after flashing by pressing the button on
phonemacro 0:252077cb2ac5 60 * the Pegasus next to the battery connector or the button
phonemacro 0:252077cb2ac5 61 * on the MAXREFDES100HDK.
phonemacro 0:252077cb2ac5 62 */
phonemacro 0:252077cb2ac5 63 int main()
phonemacro 0:252077cb2ac5 64 {
phonemacro 0:252077cb2ac5 65 uint32_t i;
phonemacro 0:252077cb2ac5 66 float temperature;
phonemacro 0:252077cb2ac5 67 uint16_t cfg;
phonemacro 0:252077cb2ac5 68 DigitalOut rLED(LED1, LED_OFF);
phonemacro 0:252077cb2ac5 69 DigitalOut gLED(LED2, LED_OFF);
phonemacro 0:252077cb2ac5 70 DigitalOut bLED(LED3, LED_OFF);
phonemacro 0:252077cb2ac5 71 gLED = LED_ON;
phonemacro 0:252077cb2ac5 72 printf("MAX31875 Small Package Temperature Sensor example source code.\r\n");
phonemacro 0:252077cb2ac5 73 printf("\r\n");
phonemacro 0:252077cb2ac5 74
phonemacro 0:252077cb2ac5 75 MAX31875 temp_sensor(i2cBus, MAX31875_I2C_SLAVE_ADR_R0);
phonemacro 0:252077cb2ac5 76 i2cBus.frequency(400000);
phonemacro 0:252077cb2ac5 77
phonemacro 0:252077cb2ac5 78 /* Configure for fault filter 1, comparator, continuous,
phonemacro 0:252077cb2ac5 79 * normal format, 8 sps, 12 bit resolution
phonemacro 0:252077cb2ac5 80 */
phonemacro 0:252077cb2ac5 81 #if 0
phonemacro 0:252077cb2ac5 82 temp_sensor.write_cfg(uint16_t(MAX31875_CFG_FAULT_FILTER_1 |
phonemacro 0:252077cb2ac5 83 MAX31875_CFG_COMPARATOR_MODE | MAX31875_CFG_CONTINUOUS |
phonemacro 0:252077cb2ac5 84 MAX31875_CFG_NORMAL_FORMAT | MAX31875_CFG_CONV_RATE_8 |
phonemacro 0:252077cb2ac5 85 MAX31875_CFG_RESOLUTION_12BIT));
phonemacro 0:252077cb2ac5 86 #endif
phonemacro 0:252077cb2ac5 87 for (i = 0; i < 10; i++) {
phonemacro 0:252077cb2ac5 88 wait(MAX31875_WAIT_CONV_TIME_9BIT);
phonemacro 0:252077cb2ac5 89 temperature = temp_sensor.read_reg_as_temperature(MAX31875_REG_TEMPERATURE);
phonemacro 0:252077cb2ac5 90 printf("Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n",
phonemacro 0:252077cb2ac5 91 temperature, temp_sensor.celsius_to_fahrenheit(temperature));
phonemacro 0:252077cb2ac5 92 }
phonemacro 0:252077cb2ac5 93 temperature = temp_sensor.read_reg_as_temperature(MAX31875_REG_TOS_HIGH_TRIP);
phonemacro 0:252077cb2ac5 94 printf("TOS Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n",
phonemacro 0:252077cb2ac5 95 temperature, temp_sensor.celsius_to_fahrenheit(temperature));
phonemacro 0:252077cb2ac5 96 #if 0
phonemacro 0:252077cb2ac5 97 temp_sensor.read_reg(&cfg, MAX31875_REG_CONFIGURATION);
phonemacro 0:252077cb2ac5 98 printf("Configuration Register = 0x%04Xh \r\n", cfg);
phonemacro 0:252077cb2ac5 99 #if 0
phonemacro 0:252077cb2ac5 100 temp_sensor.write_trip_low(-63.9375);
phonemacro 0:252077cb2ac5 101 wait(0.03);
phonemacro 0:252077cb2ac5 102 temperature = temp_sensor.read_reg_as_temperature(MAX31875_REG_THYST_LOW_TRIP);
phonemacro 0:252077cb2ac5 103 printf("Thyst Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n",
phonemacro 0:252077cb2ac5 104 temperature, temp_sensor.celsius_to_fahrenheit(temperature));
phonemacro 0:252077cb2ac5 105
phonemacro 0:252077cb2ac5 106 temp_sensor.write_trip_high(64.0625f);
phonemacro 0:252077cb2ac5 107 wait(0.03);
phonemacro 0:252077cb2ac5 108 temperature = temp_sensor.read_reg_as_temperature(MAX31875_REG_TOS_HIGH_TRIP);
phonemacro 0:252077cb2ac5 109 printf("TOS Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n",
phonemacro 0:252077cb2ac5 110 temperature, temp_sensor.celsius_to_fahrenheit(temperature));
phonemacro 0:252077cb2ac5 111 printf("\r\n\r\n");
phonemacro 0:252077cb2ac5 112 #endif
phonemacro 0:252077cb2ac5 113
phonemacro 0:252077cb2ac5 114 printf("\r\n");
phonemacro 0:252077cb2ac5 115
phonemacro 0:252077cb2ac5 116 /* Configure for fault filter 4, interrupt, shutdown,
phonemacro 0:252077cb2ac5 117 * extended format, 0.25 sps, 10 bit resolution, start one-shot
phonemacro 0:252077cb2ac5 118 */
phonemacro 0:252077cb2ac5 119 for (i = 0; i < 2; i++) {
phonemacro 0:252077cb2ac5 120 temp_sensor.write_cfg(uint16_t(MAX31875_CFG_FAULT_FILTER_4 |
phonemacro 0:252077cb2ac5 121 MAX31875_CFG_INTERRUPT_MODE | MAX31875_CFG_SHUTDOWN |
phonemacro 0:252077cb2ac5 122 MAX31875_CFG_EXTENDED_FORMAT| MAX31875_CFG_CONV_RATE_0_25 |
phonemacro 0:252077cb2ac5 123 MAX31875_CFG_RESOLUTION_10BIT | MAX31875_CFG_ONE_SHOT_START));
phonemacro 0:252077cb2ac5 124 wait(MAX31875_WAIT_CONV_RATE_0_25);
phonemacro 0:252077cb2ac5 125 temperature = temp_sensor.read_reg_as_temperature(MAX31875_REG_TEMPERATURE);
phonemacro 0:252077cb2ac5 126 printf("Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n",
phonemacro 0:252077cb2ac5 127 temperature, temp_sensor.celsius_to_fahrenheit(temperature));
phonemacro 0:252077cb2ac5 128 }
phonemacro 0:252077cb2ac5 129 temp_sensor.read_reg(&cfg, MAX31875_REG_CONFIGURATION);
phonemacro 0:252077cb2ac5 130 printf("Configuration Register = 0x%04Xh \r\n", cfg);
phonemacro 0:252077cb2ac5 131
phonemacro 0:252077cb2ac5 132 printf("\r\n\r\n");
phonemacro 0:252077cb2ac5 133
phonemacro 0:252077cb2ac5 134 #if 0
phonemacro 0:252077cb2ac5 135 temp_sensor.write_trip_low(-127.9375);
phonemacro 0:252077cb2ac5 136 wait(0.03);
phonemacro 0:252077cb2ac5 137 temp_sensor.read_reg(&cfg, MAX31875_REG_CONFIGURATION);
phonemacro 0:252077cb2ac5 138 temperature = temp_sensor.read_reg_as_temperature(MAX31875_REG_THYST_LOW_TRIP);
phonemacro 0:252077cb2ac5 139 printf("Thyst Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n",
phonemacro 0:252077cb2ac5 140 temperature, temp_sensor.celsius_to_fahrenheit(temperature));
phonemacro 0:252077cb2ac5 141
phonemacro 0:252077cb2ac5 142 temp_sensor.write_trip_high(129.0625f);
phonemacro 0:252077cb2ac5 143 wait(0.03);
phonemacro 0:252077cb2ac5 144 temperature = temp_sensor.read_reg_as_temperature(MAX31875_REG_TOS_HIGH_TRIP);
phonemacro 0:252077cb2ac5 145 printf("TOS Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n",
phonemacro 0:252077cb2ac5 146 temperature, temp_sensor.celsius_to_fahrenheit(temperature));
phonemacro 0:252077cb2ac5 147 printf("\r\n\r\n");
phonemacro 0:252077cb2ac5 148 #endif
phonemacro 0:252077cb2ac5 149
phonemacro 0:252077cb2ac5 150 /***************************************************************************
phonemacro 0:252077cb2ac5 151 * Call the C code version of the driver
phonemacro 0:252077cb2ac5 152 ***************************************************************************
phonemacro 0:252077cb2ac5 153 */
phonemacro 0:252077cb2ac5 154 #include "max31875_c.h"
phonemacro 0:252077cb2ac5 155 printf("C implementation of the code\r\n");
phonemacro 0:252077cb2ac5 156 max31875_init(MAX31875_I2C_SLAVE_ADR_R0);
phonemacro 0:252077cb2ac5 157 /* Configure for fault filter 1, comparator, continuous,
phonemacro 0:252077cb2ac5 158 * normal format, 8 sps, 12 bit resolution
phonemacro 0:252077cb2ac5 159 */
phonemacro 0:252077cb2ac5 160 max31875_write_cfg(uint16_t(MAX31875_CFG_FAULT_FILTER_1 |
phonemacro 0:252077cb2ac5 161 MAX31875_CFG_COMPARATOR_MODE | MAX31875_CFG_CONTINUOUS |
phonemacro 0:252077cb2ac5 162 MAX31875_CFG_NORMAL_FORMAT | MAX31875_CFG_CONV_RATE_8 |
phonemacro 0:252077cb2ac5 163 MAX31875_CFG_RESOLUTION_12BIT), i2cBus);
phonemacro 0:252077cb2ac5 164 for (i = 0; i < 10; i++) {
phonemacro 0:252077cb2ac5 165 wait(MAX31875_WAIT_CONV_RATE_8);
phonemacro 0:252077cb2ac5 166 temperature = max31875_read_reg_as_temperature(MAX31875_REG_TEMPERATURE,
phonemacro 0:252077cb2ac5 167 i2cBus);
phonemacro 0:252077cb2ac5 168 printf("Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n",
phonemacro 0:252077cb2ac5 169 temperature, temp_sensor.celsius_to_fahrenheit(temperature));
phonemacro 0:252077cb2ac5 170 }
phonemacro 0:252077cb2ac5 171 max31875_read_reg(&cfg, MAX31875_REG_CONFIGURATION, i2cBus);
phonemacro 0:252077cb2ac5 172 printf("Configuration Register = 0x%04Xh \r\n", cfg);
phonemacro 0:252077cb2ac5 173
phonemacro 0:252077cb2ac5 174 #if 0
phonemacro 0:252077cb2ac5 175 max31875_write_trip_low(-63.9375, i2cBus);
phonemacro 0:252077cb2ac5 176 wait(0.03);
phonemacro 0:252077cb2ac5 177 temperature = max31875_read_reg_as_temperature(MAX31875_REG_THYST_LOW_TRIP, i2cBus);
phonemacro 0:252077cb2ac5 178 printf("Thyst Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n",
phonemacro 0:252077cb2ac5 179 temperature, max31875_celsius_to_fahrenheit(temperature));
phonemacro 0:252077cb2ac5 180
phonemacro 0:252077cb2ac5 181 max31875_write_trip_high(64.0625f, i2cBus);
phonemacro 0:252077cb2ac5 182 wait(0.03);
phonemacro 0:252077cb2ac5 183 temperature = max31875_read_reg_as_temperature(MAX31875_REG_TOS_HIGH_TRIP, i2cBus);
phonemacro 0:252077cb2ac5 184 printf("TOS Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n",
phonemacro 0:252077cb2ac5 185 temperature, max31875_celsius_to_fahrenheit(temperature));
phonemacro 0:252077cb2ac5 186 #endif
phonemacro 0:252077cb2ac5 187
phonemacro 0:252077cb2ac5 188 printf("\r\n");
phonemacro 0:252077cb2ac5 189 for (i = 0; i < 2; i++) {
phonemacro 0:252077cb2ac5 190 max31875_write_cfg(uint16_t(MAX31875_CFG_FAULT_FILTER_4 |
phonemacro 0:252077cb2ac5 191 MAX31875_CFG_INTERRUPT_MODE | MAX31875_CFG_SHUTDOWN |
phonemacro 0:252077cb2ac5 192 MAX31875_CFG_EXTENDED_FORMAT| MAX31875_CFG_CONV_RATE_0_25 |
phonemacro 0:252077cb2ac5 193 MAX31875_CFG_RESOLUTION_10BIT | MAX31875_CFG_ONE_SHOT_START),
phonemacro 0:252077cb2ac5 194 i2cBus);
phonemacro 0:252077cb2ac5 195 wait(MAX31875_WAIT_CONV_RATE_0_25);
phonemacro 0:252077cb2ac5 196 temperature = max31875_read_reg_as_temperature(MAX31875_REG_TEMPERATURE,
phonemacro 0:252077cb2ac5 197 i2cBus);
phonemacro 0:252077cb2ac5 198 printf("Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n",
phonemacro 0:252077cb2ac5 199 temperature, temp_sensor.celsius_to_fahrenheit(temperature));
phonemacro 0:252077cb2ac5 200 }
phonemacro 0:252077cb2ac5 201 max31875_read_reg(&cfg, MAX31875_REG_CONFIGURATION, i2cBus);
phonemacro 0:252077cb2ac5 202 printf("Configuration Register = 0x%04Xh \r\n", cfg);
phonemacro 0:252077cb2ac5 203
phonemacro 0:252077cb2ac5 204 #if 0
phonemacro 0:252077cb2ac5 205 temp_sensor.write_trip_low(-127.9375);
phonemacro 0:252077cb2ac5 206 max31875_write_trip_low(-127.9375, i2cBus);
phonemacro 0:252077cb2ac5 207 wait(0.03);
phonemacro 0:252077cb2ac5 208 temperature = max31875_read_reg_as_temperature(MAX31875_REG_THYST_LOW_TRIP, i2cBus);
phonemacro 0:252077cb2ac5 209 printf("Thyst Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n",
phonemacro 0:252077cb2ac5 210 temperature, max31875_celsius_to_fahrenheit(temperature));
phonemacro 0:252077cb2ac5 211
phonemacro 0:252077cb2ac5 212 max31875_write_trip_high(129.0625f, i2cBus);
phonemacro 0:252077cb2ac5 213 wait(0.03);
phonemacro 0:252077cb2ac5 214 temperature = max31875_read_reg_as_temperature(MAX31875_REG_TOS_HIGH_TRIP, i2cBus);
phonemacro 0:252077cb2ac5 215 printf("TOS Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n",
phonemacro 0:252077cb2ac5 216 temperature, max31875_celsius_to_fahrenheit(temperature));
phonemacro 0:252077cb2ac5 217 #endif
phonemacro 0:252077cb2ac5 218 #endif
phonemacro 0:252077cb2ac5 219 printf("\r\n\r\n\r\n");
phonemacro 0:252077cb2ac5 220
phonemacro 0:252077cb2ac5 221
phonemacro 0:252077cb2ac5 222 while (true) { // Blink the green LED
phonemacro 0:252077cb2ac5 223 gLED = !gLED;
phonemacro 0:252077cb2ac5 224 wait(0.5);
phonemacro 0:252077cb2ac5 225 }
phonemacro 0:252077cb2ac5 226 }
phonemacro 0:252077cb2ac5 227
phonemacro 0:252077cb2ac5 228