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Minor changes in BME680 driver (#543)

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This commit is contained in:
Gunar Schorcht 2018-01-20 13:02:53 +01:00 • committed by Ruslan V. Uss
parent 8325bb87c5
commit 13db675ac6
7 changed files with 142 additions and 74 deletions
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32
extras/bme680/README.md
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@ -378,10 +378,7 @@ Optionally, you could wish to set some measurement parameters. For details see t
```
if (sensor)
{
// Create a task that uses the sensor
xTaskCreate(user_task, "user_task", 256, NULL, 2, NULL);
/** -- OPTIONAL PART -- */
/** -- SENSOR CONFIGURATION PART (optional) --- */
// Changes the oversampling rates to 4x oversampling for temperature
// and 2x oversampling for humidity. Pressure measurement is skipped.
@ -394,11 +391,21 @@ if (sensor)
bme680_set_heater_profile (sensor, 0, 200, 100);
bme680_use_heater_profile (sensor, 0);
/** -- TASK CREATION PART --- */
// must be done last to avoid concurrency situations with the sensor
// configuration part
// Create a task that uses the sensor
xTaskCreate(user_task, "user_task", TASK_STACK_DEPTH, NULL, 2, NULL);
...
}
```
Last, the user task that uses the sensor has to be created.
Finally, a user task that uses the sensor has to be created.
**Please note:** To avoid concurrency situations when driver functions are used to access the sensor, for example to read data, the user task must not be created until the sensor configuration is completed.
### User task
@ -566,10 +573,7 @@ void user_init(void)
if (sensor)
{
// Create a task that uses the sensor
xTaskCreate(user_task, "user_task", TASK_STACK_DEPTH, NULL, 2, NULL);
/** -- OPTIONAL PART -- */
/** -- SENSOR CONFIGURATION PART (optional) --- */
// Changes the oversampling rates to 4x oversampling for temperature
// and 2x oversampling for humidity. Pressure measurement is skipped.
@ -584,7 +588,17 @@ void user_init(void)
// Set ambient temperature to 10 degree Celsius
bme680_set_ambient_temperature (sensor, 10);
/** -- TASK CREATION PART --- */
// must be done last to avoid concurrency situations with the sensor
// configuration part
// Create a task that uses the sensor
xTaskCreate(user_task, "user_task", TASK_STACK_DEPTH, NULL, 2, NULL);
}
else
printf("Could not initialize BME680 sensor\n");
}
```