alex/BME280_SensorAPI
1
0
Fork 0
mirror of https://github.com/boschsensortec/BME280_SensorAPI.git synced 2024-10-05 20:47:48 -04:00
Code Issues Actions Packages Projects Releases Wiki Activity

improved error output

Browse Source
This commit is contained in:
byteneumann 2019-07-31 19:01:48 +00:00
parent 64356f5f7e
commit 47256731aa
1 changed files with 20 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
examples/linux_userspace.c
View File

@ -4,7 +4,7 @@
tested: Raspberry Pi.
Use like: ./bme280 /dev/i2c-0
*/
#include "bme280.h"
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
@ -13,14 +13,17 @@
#include <sys/ioctl.h>
#include <sys/types.h>
#include <fcntl.h>
#include "bme280.h"
int fd;
int8_t user_i2c_read(uint8_t id, uint8_t reg_addr, uint8_t *data, uint16_t len)
{
write(fd, &reg_addr, 1);
read(fd, data, len);
return 0;
if (write(fd, &reg_addr, sizeof(reg_addr)) < sizeof(reg_addr))
return BME280_E_COMM_FAIL;
if (read(fd, data, len) < len)
return BME280_E_COMM_FAIL;
return BME280_OK;
}
void user_delay_ms(uint32_t period)
@ -31,12 +34,13 @@ void user_delay_ms(uint32_t period)
int8_t user_i2c_write(uint8_t id, uint8_t reg_addr, uint8_t *data, uint16_t len)
{
int8_t *buf;
buf = malloc(len +1);
buf = malloc(len + 1);
buf[0] = reg_addr;
memcpy(buf + 1, data, len);
write(fd, buf, len + 1);
if (write(fd, buf, len + 1) < len)
return BME280_E_COMM_FAIL;
free(buf);
return 0;
return BME280_OK;
}
void print_sensor_data(struct bme280_data *comp_data)
@ -65,7 +69,7 @@ int8_t stream_sensor_data_forced_mode(struct bme280_dev *dev)
rslt = bme280_set_sensor_settings(settings_sel, dev);
if (rslt != BME280_OK)
{
fprintf(stderr, "Failed to set sensor settings.");
fprintf(stderr, "Failed to set sensor settings (code %+d).", rslt);
return rslt;
}
@ -75,12 +79,18 @@ int8_t stream_sensor_data_forced_mode(struct bme280_dev *dev)
{
rslt = bme280_set_sensor_mode(BME280_FORCED_MODE, dev);
if (rslt != BME280_OK)
{
fprintf(stderr, "Failed to set sensor mode (code %+d).", rslt);
break;
}
/* Wait for the measurement to complete and print data @25Hz */
dev->delay_ms(40);
rslt = bme280_get_sensor_data(BME280_ALL, &comp_data, dev);
if (rslt != BME280_OK)
{
fprintf(stderr, "Failed to get sensor data (code %+d).", rslt);
break;
}
print_sensor_data(&comp_data);
}
return rslt;
@ -126,13 +136,13 @@ int main(int argc, char* argv[])
rslt = bme280_init(&dev);
if (rslt != BME280_OK)
{
fprintf(stderr, "Failed to initialize the device.\n");
fprintf(stderr, "Failed to initialize the device (code %+d).\n", rslt);
exit(1);
}
rslt = stream_sensor_data_forced_mode(&dev);
if (rslt != BME280_OK)
{
fprintf(stderr, "Failed to stream sensor data.\n");
fprintf(stderr, "Failed to stream sensor data (code %+d).\n", rslt);
exit(1);
}
return 0;