Diff: main.cpp

Revision:

0:08830daf46a0

Child:

1:5d32aeb8387e

diff -r 000000000000 -r 08830daf46a0 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Apr 09 07:13:23 2019 +0000
@@ -0,0 +1,227 @@
+/*******************************************************************************
+* 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 "max31725.h"
+#include "max31725_cpp.h"
+#include "USBSerial.h"
+ 
+MAX32630FTHR pegasus(MAX32630FTHR::VIO_3V3); 
+ 
+DigitalOut rLED(LED1);
+DigitalOut gLED(LED2);
+DigitalOut bLED(LED3);
+ 
+I2C i2cBus(P3_4, P3_5);
+
+// main() runs in its own thread in the OS
+// (note the calls to Thread::wait below for delays)
+/**
+* @brief Sample main program for MAX31725
+* @version 1.0000.0002
+*
+* @details Sample main program for MAX31725
+* The prints are sent to the terminal window (9600, 8n1).
+* The program sets the GPIOs to 3.3V and the program
+* configures the chip and reads temperatures.
+* 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()
+{
+    uint32_t i;
+    float temperature;
+    uint8_t cfg;
+    DigitalOut rLED(LED1, LED_OFF);
+    DigitalOut gLED(LED2, LED_OFF);
+    DigitalOut bLED(LED3, LED_OFF);
+    gLED = LED_ON;
+    printf("MAX31725 Digital Thermometer and "
+        "Thermostat example source code.\r\n");
+    printf("\r\n");
+
+    MAX31725 temp_sensor(i2cBus, MAX31725_I2C_SLAVE_ADR_R7);
+    i2cBus.frequency(400000);
+    /* Configure for time out enabled, normal format, fault filter 6,
+       active low polarity, comparator mode, continuous
+     */
+    temp_sensor.write_cfg_reg(uint8_t(MAX31725_CFG_TIMEOUT_ENABLE |
+        MAX31725_CFG_NORMAL_FORMAT| MAX31725_CFG_FAULT_FILTER_6 |
+        MAX31725_CFG_OS_POLARITY_ACT_LOW | MAX31725_CFG_COMPARATOR_MODE |
+        MAX31725_CFG_CONTINUOUS));
+    for (i = 0; i < 10; i++) {
+        wait(MAX31725_WAIT_CONV_TIME);
+        temperature =
+            temp_sensor.read_reg_as_temperature(MAX31725_REG_TEMPERATURE);
+        printf("Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n", 
+            temperature, temp_sensor.celsius_to_fahrenheit(temperature));
+    }
+    temp_sensor.read_cfg_reg(&cfg);
+    printf("Configuration Register = 0x%02Xh \r\n", cfg);
+#if 0
+    temp_sensor.write_trip_low_thyst(-63.9375);
+    temperature =
+        temp_sensor.read_reg_as_temperature(MAX31725_REG_THYST_LOW_TRIP);
+    printf("Thyst Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n", 
+            temperature, temp_sensor.celsius_to_fahrenheit(temperature));
+
+    temp_sensor.write_trip_high_tos(64.0625f);
+    temperature = temp_sensor.read_reg_as_temperature(MAX31725_REG_TOS_HIGH_TRIP);
+    printf("TOS Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n", 
+            temperature, temp_sensor.celsius_to_fahrenheit(temperature));
+    printf("\r\n\r\n");
+#endif
+
+    printf("\r\n");
+
+    for (i = 0; i < 8; i++) {
+        /* Configure for one shot, time out disabled, extended format, fault filter 4,
+           active low polarity, comparator mode, shutdown
+         */
+        temp_sensor.write_cfg_reg(uint8_t(MAX31725_CFG_ONE_SHOT_START |
+            MAX31725_CFG_TIMEOUT_DISABLE | MAX31725_CFG_EXTENDED_FORMAT |
+            MAX31725_CFG_FAULT_FILTER_4 | MAX31725_CFG_OS_POLARITY_ACT_LOW |
+            MAX31725_CFG_COMPARATOR_MODE | MAX31725_CFG_SHUTDOWN));
+        wait(MAX31725_WAIT_CONV_TIME);
+        temperature =
+            temp_sensor.read_reg_as_temperature(MAX31725_REG_TEMPERATURE);
+        printf("Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n", 
+            temperature, temp_sensor.celsius_to_fahrenheit(temperature));
+        wait(2); /*  leave it in shutdown mode for a while */
+    }
+    temp_sensor.read_cfg_reg(&cfg);
+    printf("Configuration Register = 0x%02Xh \r\n", cfg);
+
+    printf("\r\n\r\n");
+
+#if 0
+    temp_sensor.write_trip_low_thyst(-55.0f);
+    temperature = 
+        temp_sensor.read_reg_as_temperature(MAX31725_REG_THYST_LOW_TRIP);
+    printf("Thyst Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n", 
+            temperature, temp_sensor.celsius_to_fahrenheit(temperature));
+
+    temp_sensor.write_trip_high_tos(125.0f);
+    temperature = temp_sensor.read_reg_as_temperature(MAX31725_REG_TOS_HIGH_TRIP);
+    printf("TOS Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n", 
+            temperature, temp_sensor.celsius_to_fahrenheit(temperature));
+    printf("\r\n\r\n");
+#endif
+
+    /***************************************************************************
+     * Call the C code version of the driver
+     ***************************************************************************
+     */
+#include "max31725_c.h"
+    printf("C implementation of the code\r\n");
+    max31725_init(MAX31725_I2C_SLAVE_ADR_R7);
+    /* Configure for time out enabled, normal format, fault filter 6,
+       active low polarity, comparator mode, continuous
+     */
+    max31725_write_cfg_reg(uint8_t(MAX31725_CFG_TIMEOUT_ENABLE |
+        MAX31725_CFG_NORMAL_FORMAT | MAX31725_CFG_FAULT_FILTER_6 |
+        MAX31725_CFG_OS_POLARITY_ACT_LOW | MAX31725_CFG_COMPARATOR_MODE |
+        MAX31725_CFG_CONTINUOUS), i2cBus);
+    /* Configure for 9 bit resolution, fault filter 1, 
+       active low, comparator, continuous,
+     */
+    for (i = 0; i < 10; i++) {
+        wait(MAX31725_WAIT_CONV_TIME);
+        temperature = max31725_read_reg_as_temperature(MAX31725_REG_TEMPERATURE,
+            i2cBus);
+        printf("Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n", 
+            temperature, temp_sensor.celsius_to_fahrenheit(temperature));
+    }
+
+    max31725_read_cfg_reg(&cfg, i2cBus);
+    printf("Configuration Register = 0x%02Xh \r\n", cfg);
+
+#if 0
+    max31725_write_trip_low_thyst(-63.9375, i2cBus);
+    temperature = max31725_read_reg_as_temperature(MAX31725_REG_THYST_LOW_TRIP,
+        i2cBus);
+    printf("Thyst Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n", 
+            temperature, max31725_celsius_to_fahrenheit(temperature));
+
+    max31725_write_trip_high_tos(64.0625f, i2cBus);
+    temperature = max31725_read_reg_as_temperature(MAX31725_REG_TOS_HIGH_TRIP,
+        i2cBus);
+    printf("TOS Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n", 
+            temperature, max31725_celsius_to_fahrenheit(temperature));
+#endif
+
+    printf("\r\n");
+    for (i = 0; i < 8; i++) {
+        /* Configure for one shot, time out disabled, extended format, fault filter 4,
+           active low polarity, comparator mode, shutdown
+         */
+        max31725_write_cfg_reg(uint8_t(MAX31725_CFG_ONE_SHOT_START |
+            MAX31725_CFG_TIMEOUT_DISABLE | MAX31725_CFG_EXTENDED_FORMAT |
+            MAX31725_CFG_FAULT_FILTER_4 | MAX31725_CFG_OS_POLARITY_ACT_LOW |
+            MAX31725_CFG_COMPARATOR_MODE | MAX31725_CFG_SHUTDOWN), i2cBus);
+        wait(MAX31725_WAIT_CONV_TIME);
+        temperature = max31725_read_reg_as_temperature(MAX31725_REG_TEMPERATURE,
+            i2cBus);
+        printf("Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n", 
+            temperature, temp_sensor.celsius_to_fahrenheit(temperature));
+        wait(2); /*  leave it in shutdown mode for a while */
+    }
+    max31725_read_cfg_reg(&cfg, i2cBus);
+    printf("Configuration Register = 0x%02Xh \r\n", cfg);
+
+#if 0
+    max31725_write_trip_low_thyst(-55, i2cBus);
+    temperature = max31725_read_reg_as_temperature(MAX31725_REG_THYST_LOW_TRIP,
+        i2cBus);
+    printf("Thyst Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n", 
+            temperature, max31725_celsius_to_fahrenheit(temperature));
+
+    max31725_write_trip_high_tos(125.0f, i2cBus);
+    temperature = max31725_read_reg_as_temperature(MAX31725_REG_TOS_HIGH_TRIP,
+        i2cBus);
+    printf("TOS Temperature = %3.4f Celsius, %3.4f Fahrenheit\r\n", 
+            temperature, max31725_celsius_to_fahrenheit(temperature));
+#endif
+    printf("\r\n\r\n\r\n");
+
+
+    while (true) {  // Blink the green LED 
+        gLED = !gLED;
+        wait(0.5);
+    }
+}
+ 
+ 
\ No newline at end of file