mirror of
https://github.com/RIOT-OS/RIOT.git
synced 2024-12-29 04:50:03 +01:00
57 lines
2.0 KiB
Plaintext
57 lines
2.0 KiB
Plaintext
# Copyright (c) 2021 HAW Hamburg
|
|
#
|
|
# 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.
|
|
#
|
|
|
|
if USEMODULE_SHT2X
|
|
|
|
choice
|
|
bool "Measurement Resolution"
|
|
default SHT2X_RES_12_14BIT
|
|
|
|
config SHT2X_RES_12_14BIT
|
|
bool "Humidity with 12 bit, Temperature with 14 bit"
|
|
config SHT2X_RES_11_11BIT
|
|
bool "Humidity with 11 bit, Temperature with 11 bit"
|
|
config SHT2X_RES_10_13BIT
|
|
bool "Humidity with 10 bit, Temperature with 13 bit"
|
|
config SHT2X_RES_8_12BIT
|
|
bool "Humidity with 8 bit, Temperature with 12 bit"
|
|
help
|
|
Measurement resolution
|
|
endchoice
|
|
|
|
choice
|
|
bool "Measurement Mode"
|
|
default SHT2X_MEASURE_MODE_NO_HOLD
|
|
|
|
config SHT2X_MEASURE_MODE_NO_HOLD
|
|
bool "No Hold"
|
|
help
|
|
In Hold mode the measurement is started and the sensor blocks the
|
|
master by clock stretching until the measurement is finished. Thus,
|
|
in this mode, both the I2C bus and the processor are blocked for the
|
|
entire measurement duration, which can be up to 85 ms for temperature
|
|
measurement and up to 29 ms for humidity measurement, depending on the
|
|
resolution. Therefore, the no-hold mode should be used, where the
|
|
measurement is started and a timer is used to fetch the results.
|
|
This way neither the I2C bus nor the processor are blocked for the
|
|
duration of the measurement. Furthermore, the hold mode requires that
|
|
the MCU supports clock stretching.
|
|
config SHT2X_MEASURE_MODE_HOLD
|
|
bool "Hold"
|
|
help
|
|
In no-hold mode the measurement is started and a timer is used to
|
|
fetch the results. This way neither the I2C bus nor the processor
|
|
are blocked for the duration of the measurement.
|
|
endchoice
|
|
|
|
config SHT2X_CRC_MODE
|
|
bool "CRC check"
|
|
help
|
|
Enable to check the CRC of measurement data.
|
|
|
|
endif # USEMODULE_SHT2X
|