d4983df3b1
Periodically reads temperature and prints it on console Change-Id: I293a7aad88bce245d6c1149fd19fcb7c7e770e54 Signed-off-by: Mariusz Ryndzionek <mariusz.ryndzionek@firmwave.com>
79 lines
1.9 KiB
C
79 lines
1.9 KiB
C
/*
|
|
* Copyright (c) 2016 Firmwave
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#include <zephyr.h>
|
|
#include <nanokernel.h>
|
|
#include <device.h>
|
|
#include <sensor.h>
|
|
#include <misc/printk.h>
|
|
#include <misc/__assert.h>
|
|
|
|
static void do_main(struct device *dev)
|
|
{
|
|
int ret;
|
|
struct sensor_value temp_value;
|
|
struct sensor_value attr;
|
|
|
|
attr.type = SENSOR_VALUE_TYPE_INT;
|
|
attr.val1 = 150;
|
|
ret = sensor_attr_set(dev, SENSOR_CHAN_TEMP,
|
|
SENSOR_ATTR_FULL_SCALE, &attr);
|
|
if (ret) {
|
|
printk("sensor_attr_set failed ret %d\n", ret);
|
|
return;
|
|
}
|
|
|
|
attr.type = SENSOR_VALUE_TYPE_INT_PLUS_MICRO;
|
|
attr.val1 = 8;
|
|
attr.val2 = 0;
|
|
ret = sensor_attr_set(dev, SENSOR_CHAN_TEMP,
|
|
SENSOR_ATTR_SAMPLING_FREQUENCY, &attr);
|
|
if (ret) {
|
|
printk("sensor_attr_set failed ret %d\n", ret);
|
|
return;
|
|
}
|
|
|
|
while (1) {
|
|
ret = sensor_sample_fetch(dev);
|
|
if (ret) {
|
|
printk("sensor_sample_fetch failed ret %d\n", ret);
|
|
return;
|
|
}
|
|
|
|
ret = sensor_channel_get(dev, SENSOR_CHAN_TEMP, &temp_value);
|
|
if (ret) {
|
|
printk("sensor_channel_get failed ret %d\n", ret);
|
|
return;
|
|
}
|
|
|
|
printk("temp is %d (%d micro)\n", temp_value.val1,
|
|
temp_value.val2);
|
|
|
|
task_sleep(sys_clock_ticks_per_sec);
|
|
}
|
|
}
|
|
|
|
void main(void)
|
|
{
|
|
struct device *dev;
|
|
|
|
dev = device_get_binding("TMP112");
|
|
__ASSERT(dev != NULL, "Failed to get device binding");
|
|
printk("device is %p, name is %s\n", dev, dev->config->name);
|
|
|
|
do_main(dev);
|
|
}
|