main.c
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/*
* Copyright (C) 2015 Eistec AB
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
* directory for more details.
*/
/**
* @ingroup tests
* @{
*
* @file
* @brief Test application for the ADT7310 accelerometer driver
*
* @author Joakim Nohlgård <joakim.nohlgard@eistec.se
*
* @}
*/
#include <stdio.h>
#include <math.h>
#include <stdlib.h>
#include "board.h"
#include "xtimer.h"
#include "periph/spi.h"
#include "adt7310.h"
/* Check for definition of hardware settings */
#ifndef TEST_ADT7310_SPI
#error "TEST_ADT7310_SPI not defined"
#endif
#ifndef TEST_ADT7310_CS
#error "TEST_ADT7310_CS not defined"
#endif
#define SPI_CONF (SPI_CONF_SECOND_FALLING)
#define SPI_CLK (SPI_CLK_10MHZ)
#define SLEEP_CONT (100 * 1000U)
#define SLEEP_1SPS (1000 * 1000U)
#define READINGS_CONT (200)
#define READINGS_1SPS (20)
int test_adt7310_sample_print(adt7310_t *dev)
{
int16_t raw;
float celsius_float;
int32_t millicelsius;
raw = adt7310_read_raw(dev);
if (raw == INT16_MIN) {
puts("Reading temperature data (adt7310_read_raw)... ");
puts("[Failed]\n");
return 1;
}
millicelsius = adt7310_read(dev);
if (millicelsius == INT32_MIN) {
puts("Reading temperature data (adt7310_read)... ");
puts("[Failed]\n");
return 1;
};
celsius_float = adt7310_read_float(dev);
if (isnan(celsius_float)) {
puts("Reading temperature data (adt7310_read_float)... ");
puts("[Failed]\n");
return 1;
};
/* Several platforms usually build with nano.specs, (without float printf) */
/* Split value into two integer parts for printing. */
float integral = 0;
float fractional;
fractional = modff(celsius_float, &integral);
printf("0x%04" PRIx16 " %7" PRId32 " mC %4d.%07u C)\n", raw, millicelsius,
(int)integral, abs(fractional * 10000000.f));
return 0;
}
int main(void)
{
adt7310_t dev;
puts("ADT7310 temperature driver test application\n");
puts("Initializing ADT7310 sensor... ");
if (adt7310_init(&dev, TEST_ADT7310_SPI, SPI_CLK, TEST_ADT7310_CS) == 0) {
puts("[OK]");
}
else {
puts("[Failed]\n");
return 1;
}
puts("ADT7310 init done.\n");
while (1) {
puts("Set mode to continuous, 16 bit... ");
if (adt7310_set_config(&dev, ADT7310_MODE_CONTINUOUS | ADT7310_CONF_RESOLUTION(1)) == 0) {
puts("[OK]");
}
else {
puts("[Failed]\n");
return 1;
}
for (int i = 0; i < READINGS_CONT; ++i)
{
printf("%4d: ", i);
if (test_adt7310_sample_print(&dev) != 0)
{
return 1;
}
xtimer_usleep(SLEEP_CONT);
}
puts("Set mode to 1SPS, 13 bit... ");
if (adt7310_set_config(&dev, ADT7310_MODE_1SPS) == 0) {
puts("[OK]");
}
else {
puts("[Failed]\n");
return 1;
}
for (int i = 0; i < READINGS_1SPS; ++i)
{
printf("%4d: ", i);
if (test_adt7310_sample_print(&dev) != 0)
{
return 1;
}
xtimer_usleep(SLEEP_1SPS);
}
}
return 0;
}