Example host software for the Maxim Integrated MAX31723/MAX31722 Device Temperature Sensor. Hosted on the MAX32630FTHR. The MAX31723 may be used in thermostats, thermometers, and hardware temperature supervisors.
Dependencies: MAX31723_Digital_Temperature_Sensor max32630fthr USBDevice
main.cpp
- Committer:
- phonemacro
- Date:
- 2019-01-28
- Revision:
- 11:36f82087066e
- Parent:
- 10:e315ecdb7bcd
- Child:
- 13:052296efd9e3
File content as of revision 11:36f82087066e:
/******************************************************************************* * Copyright (C) 2019 Maxim Integrated Products, Inc., All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included * in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. * * Except as contained in this notice, the name of Maxim Integrated * Products, Inc. shall not be used except as stated in the Maxim Integrated * Products, Inc. Branding Policy. * * The mere transfer of this software does not imply any licenses * of trade secrets, proprietary technology, copyrights, patents, * trademarks, maskwork rights, or any other form of intellectual * property whatsoever. Maxim Integrated Products, Inc. retains all * ownership rights. ******************************************************************************* */ #include "mbed.h" #include "max32630fthr.h" #include "max31723.h" #include "USBSerial.h" MAX32630FTHR pegasus(MAX32630FTHR::VIO_1V8); /* Pegasus, MAX31723: use 1.8V */ DigitalOut rLED(LED1); DigitalOut gLED(LED2); DigitalOut bLED(LED3); DigitalOut selectPin(P3_0); /* Pin 3_0 is used to drive chip enable low */ SPI spi(P5_1, P5_2, P5_0); /* mosi, miso, sclk */ /** main() runs in its own thread in the OS */ /** (note the calls to Thread::wait below for delays) */ /** * @brief Sample main program for Maxim Integrated MAX31723 * @version 1.0000.0002 * * @details Sample main program for MAX31723/MAX31722 * The prints are sent to the terminal window (9600, 8n1). * The program configures the SPI buss and then it performs * 5 one shot readings. * The program then blinks the green LED. * To run the program, drag and drop the .bin file into the * DAPLINK folder. After it finishes flashing, cycle the power or * reset the Pegasus (MAX32630FTHR) after flashing by pressing the button on * the Pegasus next to the battery connector or the button * on the MAXREFDES100HDK. */ int main() { int ret, i; float temperature; uint8_t value; DigitalOut rLED(LED1, LED_OFF); DigitalOut gLED(LED2, LED_OFF); DigitalOut bLED(LED3, LED_OFF); gLED = LED_ON; MAX31723 max31723_temp(spi, selectPin); spi.format(8,3); /* 8-bit, SPI mode 3 */ spi.frequency(5000000); /* Use 5 MHz SPI bus */ /* Jumpers (JP1) on MAX31723PMB should be set to SPI mode configuration * or SERMODE pin should be set to VDD for SPI mode */ ret = max31723_temp.perform_one_shot_int(MAX31723_CFG_RESOLUTION_12BIT); for (i = 0; i < 5; i++) { ret = max31723_temp.perform_one_shot_int(MAX31723_CFG_RESOLUTION_12BIT); wait(MAX31723_CONV_TIME_MSEC_12BIT); temperature = max31723_temp.read_reg_as_temperature(MAX31723_REG_TEMP_LSB); printf("Temperature = %4.4f Celsius, %4.4f Fahrenheit\r\n", temperature, max31723_temp.celsius_to_fahrenheit(temperature)); wait(2); } printf("Configuration Register = 0x%02Xh \r\n", max31723_temp.read_cfg()); printf("\r\n"); while (true) { // Blink the green LED gLED = !gLED; wait(1.0); } }