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:
- 2019-01-30
- Revision:
- 12:f2ef711f40ef
- Parent:
- 11:36f82087066e
- Child:
- 13:052296efd9e3
File content as of revision 12:f2ef711f40ef:
/*******************************************************************************
* 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);
}
}