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Commit 0c9389e0 authored by schneider's avatar schneider
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feat(bme): Add bme test app

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file build/max32665.elf
target remote localhost:3333
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################################################################################
# Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
#
# Permission is hereby granted, free of charge, to any person obtaining a
# copy of this software and associated documentation files (the "Software"),
# to deal in the Software without restriction, including without limitation
# the rights to use, copy, modify, merge, publish, distribute, sublicense,
# and/or sell copies of the Software, and to permit persons to whom the
# Software is furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
# OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
# OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
#
# Except as contained in this notice, the name of Maxim Integrated
# Products, Inc. shall not be used except as stated in the Maxim Integrated
# Products, Inc. Branding Policy.
#
# The mere transfer of this software does not imply any licenses
# of trade secrets, proprietary technology, copyrights, patents,
# trademarks, maskwork rights, or any other form of intellectual
# property whatsoever. Maxim Integrated Products, Inc. retains all
# ownership rights.
#
# $Date: 2018-09-28 18:22:39 +0000 (Fri, 28 Sep 2018) $
# $Revision: 38193 $
#
###############################################################################
# This is the name of the build output file
ifeq "$(PROJECT)" ""
PROJECT=max32665
endif
# Specify the target processor
ifeq "$(TARGET)" ""
TARGET=MAX32665
endif
# Create Target name variables
TARGET_UC:=$(shell echo $(TARGET) | tr a-z A-Z)
TARGET_LC:=$(shell echo $(TARGET) | tr A-Z a-z)
# Select 'GCC' or 'IAR' compiler
COMPILER=GCC
# Specify the board used
ifeq "$(BOARD)" ""
#BOARD=EvKit_V1
BOARD=card10
endif
# This is the path to the CMSIS root directory
ifeq "$(MAXIM_PATH)" ""
LIBS_DIR=../sdk/Libraries
else
LIBS_DIR=/$(subst \,/,$(subst :,,$(MAXIM_PATH))/Firmware/$(TARGET_UC)/Libraries)
endif
CMSIS_ROOT=$(LIBS_DIR)/CMSIS
# Source files for this test (add path to VPATH below)
SRCS = main.c
SRCS += ../lib/card10/oled96.c
SRCS += ../lib/card10/fonts.c
SRCS += ../lib/card10/pmic.c
SRCS += bhy_support.c bhy_uc_driver.c bhy.c
SRCS += MAX77650-Arduino-Library.c
SRCS += bme680.h
# Where to find source files for this test
VPATH = .
# Where to find header files for this test
IPATH = .
IPATH += ../lib/card10
VPATH += ../lib/card10
IPATH += ../lib/bosch/BHy1_driver_and_MCU_solution/driver/inc
IPATH += ../lib/bosch/BHy1_driver_and_MCU_solution/examples/firmware/
VPATH += ../lib/bosch/BHy1_driver_and_MCU_solution/driver/src
IPATH += ../lib/maxim/MAX77650-Arduino-Library
VPATH += ../lib/maxim/MAX77650-Arduino-Library
IPATH += ../lib/bosch/BME680_driver
VPATH += ../lib/bosch/BME680_driver
# Enable assertion checking for development
PROJ_CFLAGS+=-DMXC_ASSERT_ENABLE
# Specify the target revision to override default
# "A2" in ASCII
# TARGET_REV=0x4132
# Use this variables to specify and alternate tool path
#TOOL_DIR=/opt/gcc-arm-none-eabi-4_8-2013q4/bin
# Use these variables to add project specific tool options
#PROJ_CFLAGS+=--specs=nano.specs
#PROJ_LDFLAGS+=--specs=nano.specs
PROJ_CFLAGS+=-std=c99
# Point this variable to a startup file to override the default file
#STARTUPFILE=start.S
# Override the default optimization level using this variable
#MXC_OPTIMIZE_CFLAGS=-O1
# Point this variable to a linker file to override the default file
ifneq "$(APP)" ""
LINKERFILE=$(CMSIS_ROOT)/Device/Maxim/$(TARGET_UC)/Source/GCC/$(TARGET_LC)_app.ld
endif
################################################################################
# Include external library makefiles here
# Include the BSP
BOARD_DIR=$(LIBS_DIR)/Boards/$(BOARD)
include $(BOARD_DIR)/board.mk
# Include the peripheral driver
PERIPH_DRIVER_DIR=$(LIBS_DIR)/$(TARGET_UC)PeriphDriver
include $(PERIPH_DRIVER_DIR)/periphdriver.mk
################################################################################
# Include the rules for building for this target. All other makefiles should be
# included before this one.
include $(CMSIS_ROOT)/Device/Maxim/$(TARGET_UC)/Source/$(COMPILER)/$(TARGET_LC).mk
# The rule to clean out all the build products.
distclean: clean
$(MAKE) -C ${PERIPH_DRIVER_DIR} clean
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make clean
make APP=1
make build/max32665.bin
cp build/max32665.bin card10.bin
python ../bootloader/crc_patch.py card10.bin
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/*******************************************************************************
* Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
* OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Except as contained in this notice, the name of Maxim Integrated
* Products, Inc. shall not be used except as stated in the Maxim Integrated
* Products, Inc. Branding Policy.
*
* The mere transfer of this software does not imply any licenses
* of trade secrets, proprietary technology, copyrights, patents,
* trademarks, maskwork rights, or any other form of intellectual
* property whatsoever. Maxim Integrated Products, Inc. retains all
* ownership rights.
*
* $Date: 2018-09-04 22:13:32 +0000 (Tue, 04 Sep 2018) $
* $Revision: 37649 $
*
******************************************************************************/
/**
* @file main.c
* @brief Hello World!
* @details This example uses the UART to print to a terminal and flashes an LED.
*/
/***** Includes *****/
#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include "mxc_config.h"
#include "led.h"
#include "board.h"
#include "tmr_utils.h"
#include "i2c.h"
#include "rtc.h"
#include "spi.h"
#include "gpio.h"
#include "oled96.h"
#include "bhy.h"
#include "Bosch_PCB_7183_di03_BMI160_BMM150-7183_di03.2.1.11696_170103.h"
#include "bhy_uc_driver.h"
#include "pmic.h"
#include "bme680.h"
/***** Definitions *****/
void user_delay_ms(uint32_t period)
{
TMR_Delay(MXC_TMR0, MSEC(period), 0);
}
void hexdump(uint8_t *data, uint8_t len);
int8_t user_i2c_read(uint8_t dev_id, uint8_t reg_addr, uint8_t *reg_data, uint16_t len)
{
//printf("sensor_i2c_read 0x%02x %d\n", reg_addr, len);
if(I2C_MasterWrite(MXC_I2C1_BUS0, dev_id << 1, &reg_addr, 1, 1) == 1) {
//printf("setup read ok\n");
int l = I2C_MasterRead(MXC_I2C1_BUS0, dev_id << 1, reg_data, len, 0);
//printf("read:"); hexdump(reg_data, l);
return l == len ? 0 : -1;
}
return -1;
}
int8_t user_i2c_write(uint8_t dev_id, uint8_t reg_addr, uint8_t *reg_data, uint16_t len)
{
//printf("sensor_i2c_write 0x%02x:", reg_addr); hexdump(reg_data, len);
uint8_t buf[len + 1];
buf[0] = reg_addr;
memcpy(buf + 1, reg_data, len);
int l = I2C_MasterWrite(MXC_I2C1_BUS0, dev_id << 1, buf, len + 1, 0);
//printf("wrote: %d\n", l);
return l == len + 1 ? 0 : -1;
}
// *****************************************************************************
int main(void)
{
int count = 0;
printf("Hello World!\n");
TMR_Delay(MXC_TMR0, MSEC(1000), 0);
//Setup the I2CM
I2C_Shutdown(MXC_I2C0_BUS0);
I2C_Init(MXC_I2C0_BUS0, I2C_FAST_MODE, NULL);
I2C_Shutdown(MXC_I2C1_BUS0);
I2C_Init(MXC_I2C1_BUS0, I2C_FAST_MODE, NULL);
#if 0
NVIC_EnableIRQ(I2C0_IRQn); // Not sure if we actually need this when not doing async requests
#endif
uint8_t dummy[1] = {0};
// "7-bit addresses 0b0000xxx and 0b1111xxx are reserved"
for (int addr = 0x8; addr < 0x78; ++addr) {
// A 0 byte write does not seem to work so always send a single byte.
int res = I2C_MasterWrite(MXC_I2C0_BUS0, addr << 1, dummy, 1, 0);
if(res == 1) {
printf("Found (7 bit) address 0x%02x on I2C0\n", addr);
}
res = I2C_MasterWrite(MXC_I2C1_BUS0, addr << 1, dummy, 1, 0);
if(res == 1) {
printf("Found (7 bit) address 0x%02x on I2C1\n", addr);
}
}
pmic_init();
pmic_set_led(0, 0);
pmic_set_led(1, 0);
pmic_set_led(2, 0);
TMR_Delay(MXC_TMR0, MSEC(1000), 0);
oledInit(0x3c, 0, 0);
oledFill(0x00);
oledWriteString(0, 0, "Hello", 0);
oledWriteString(0, 2, "my name is", 0);
oledWriteString(0, 4, "card10", 1);
struct bme680_dev gas_sensor;
gas_sensor.dev_id = BME680_I2C_ADDR_PRIMARY;
gas_sensor.intf = BME680_I2C_INTF;
gas_sensor.read = user_i2c_read;
gas_sensor.write = user_i2c_write;
gas_sensor.delay_ms = user_delay_ms;
/* amb_temp can be set to 25 prior to configuring the gas sensor
* or by performing a few temperature readings without operating the gas sensor.
*/
gas_sensor.amb_temp = 25;
int8_t rslt = BME680_OK;
rslt = bme680_init(&gas_sensor);
if(rslt != BME680_OK) {
printf("Failed to init BME680\n");
}
uint8_t set_required_settings;
/* Set the temperature, pressure and humidity settings */
gas_sensor.tph_sett.os_hum = BME680_OS_2X;
gas_sensor.tph_sett.os_pres = BME680_OS_4X;
gas_sensor.tph_sett.os_temp = BME680_OS_8X;
gas_sensor.tph_sett.filter = BME680_FILTER_SIZE_3;
/* Set the remaining gas sensor settings and link the heating profile */
gas_sensor.gas_sett.run_gas = BME680_ENABLE_GAS_MEAS;
/* Create a ramp heat waveform in 3 steps */
gas_sensor.gas_sett.heatr_temp = 320; /* degree Celsius */
gas_sensor.gas_sett.heatr_dur = 150; /* milliseconds */
/* Select the power mode */
/* Must be set before writing the sensor configuration */
gas_sensor.power_mode = BME680_FORCED_MODE;
/* Set the required sensor settings needed */
set_required_settings = BME680_OST_SEL | BME680_OSP_SEL | BME680_OSH_SEL | BME680_FILTER_SEL
| BME680_GAS_SENSOR_SEL;
/* Set the desired sensor configuration */
rslt = bme680_set_sensor_settings(set_required_settings,&gas_sensor);
/* Set the power mode */
rslt = bme680_set_sensor_mode(&gas_sensor);
while (1) {
TMR_Delay(MXC_TMR0, MSEC(1000), 0);
struct bme680_field_data data;
rslt = bme680_get_sensor_data(&data, &gas_sensor);
printf("T: %.2f degC, P: %.2f hPa, H %.2f %%rH ", data.temperature / 100.0l,
data.pressure / 100.0l, data.humidity / 1000.0l );
//printf("%.2f,%.2f,%.2f\n", data.temperature / 100.0f,
// data.pressure / 100.0f, data.humidity / 1000.0f );
/* Avoid using measurements from an unstable heating setup */
if(data.status & BME680_GASM_VALID_MSK)
printf(", G: %d ohms", data.gas_resistance);
printf("\n");
/* Trigger the next measurement if you would like to read data out continuously */
if (gas_sensor.power_mode == BME680_FORCED_MODE) {
rslt = bme680_set_sensor_mode(&gas_sensor);
}
}
}
lib/bosch/BME680_driver/LICENSE 0 → 100644
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Copyright (C) 2017 - 2018 Bosch Sensortec GmbH
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
Neither the name of the copyright holder nor the names of the
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER
OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT NOT LIMITED TO,
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
The information provided is believed to be accurate and reliable.
The copyright holder assumes no responsibility
for the consequences of use
of such information nor for any infringement of patents or
other rights of third parties which may result from its use.
No license is granted by implication or otherwise under any patent or
patent rights of the copyright holder.
\ No newline at end of file
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# BME680 sensor API
## Introduction
This package contains the Bosch Sensortec's BME680 gas sensor API
The sensor driver package includes bme680.h, bme680.c and bme680_defs.h files
## Version
File | Version | Date
--------------|---------|-------------
bme680.c | 3.5.9 | 19 Jun 2018
bme680.h | 3.5.9 | 19 Jun 2018
bme680_defs.h | 3.5.9 | 19 Jun 2018
## Integration details
* Integrate bme680.h, bme680_defs.h and bme680.c file in to your project.
* Include the bme680.h file in your code like below.
``` c
#include "bme680.h"
```
## File information
* bme680_defs.h : This header file has the constants, macros and datatype declarations.
* bme680.h : This header file contains the declarations of the sensor driver APIs.
* bme680.c : This source file contains the definitions of the sensor driver APIs.
## Supported sensor interfaces
* SPI 4-wire
* I2C
## Usage guide
### Initializing the sensor
To initialize the sensor, you will first need to create a device structure. You
can do this by creating an instance of the structure bme680_dev. Then go on to
fill in the various parameters as shown below
#### Example for SPI 4-Wire
``` c
struct bme680_dev gas_sensor;
/* You may assign a chip select identifier to be handled later */
gas_sensor.dev_id = 0;
gas_sensor.intf = BME680_SPI_INTF;
gas_sensor.read = user_spi_read;
gas_sensor.write = user_spi_write;
gas_sensor.delay_ms = user_delay_ms;
/* amb_temp can be set to 25 prior to configuring the gas sensor
* or by performing a few temperature readings without operating the gas sensor.
*/
gas_sensor.amb_temp = 25;
int8_t rslt = BME680_OK;
rslt = bme680_init(&gas_sensor);
```
#### Example for I2C
``` c
struct bme680_dev gas_sensor;
gas_sensor.dev_id = BME680_I2C_ADDR_PRIMARY;
gas_sensor.intf = BME680_I2C_INTF;
gas_sensor.read = user_i2c_read;
gas_sensor.write = user_i2c_write;
gas_sensor.delay_ms = user_delay_ms;
/* amb_temp can be set to 25 prior to configuring the gas sensor
* or by performing a few temperature readings without operating the gas sensor.
*/
gas_sensor.amb_temp = 25;
int8_t rslt = BME680_OK;
rslt = bme680_init(&gas_sensor);
```
Regarding compensation functions for temperature, pressure, humidity and gas we have two implementations.
- Integer version
- floating point version
By default, Integer version is used in the API
If the user needs the floating point version, the user has to un-comment BME680_FLOAT_POINT_COMPENSATION macro
in bme680_defs.h file or to add it in the compiler flags.
### Configuring the sensor
#### Example for configuring the sensor in forced mode
``` c
uint8_t set_required_settings;
/* Set the temperature, pressure and humidity settings */
gas_sensor.tph_sett.os_hum = BME680_OS_2X;
gas_sensor.tph_sett.os_pres = BME680_OS_4X;
gas_sensor.tph_sett.os_temp = BME680_OS_8X;
gas_sensor.tph_sett.filter = BME680_FILTER_SIZE_3;
/* Set the remaining gas sensor settings and link the heating profile */
gas_sensor.gas_sett.run_gas = BME680_ENABLE_GAS_MEAS;
/* Create a ramp heat waveform in 3 steps */
gas_sensor.gas_sett.heatr_temp = 320; /* degree Celsius */
gas_sensor.gas_sett.heatr_dur = 150; /* milliseconds */
/* Select the power mode */
/* Must be set before writing the sensor configuration */
gas_sensor.power_mode = BME680_FORCED_MODE;
/* Set the required sensor settings needed */
set_required_settings = BME680_OST_SEL | BME680_OSP_SEL | BME680_OSH_SEL | BME680_FILTER_SEL
| BME680_GAS_SENSOR_SEL;
/* Set the desired sensor configuration */
rslt = bme680_set_sensor_settings(set_required_settings,&gas_sensor);
/* Set the power mode */
rslt = bme680_set_sensor_mode(&gas_sensor);
```
### Reading sensor data
#### Example for reading all sensor data
``` c
/* Get the total measurement duration so as to sleep or wait till the
* measurement is complete */
uint16_t meas_period;
bme680_get_profile_dur(&meas_period, &gas_sensor);
struct bme680_field_data data;
while(1)
{
user_delay_ms(meas_period); /* Delay till the measurement is ready */
rslt = bme680_get_sensor_data(&data, &gas_sensor);
printf("T: %.2f degC, P: %.2f hPa, H %.2f %%rH ", data.temperature / 100.0f,
data.pressure / 100.0f, data.humidity / 1000.0f );
/* Avoid using measurements from an unstable heating setup */
if(data.status & BME680_GASM_VALID_MSK)
printf(", G: %d ohms", data.gas_resistance);
printf("\r\n");
/* Trigger the next measurement if you would like to read data out continuously */
if (gas_sensor.power_mode == BME680_FORCED_MODE) {
rslt = bme680_set_sensor_mode(&gas_sensor);
}
}
```
### Templates for function pointers
``` c
void user_delay_ms(uint32_t period)
{
/*
* Return control or wait,
* for a period amount of milliseconds
*/
}
int8_t user_spi_read(uint8_t dev_id, uint8_t reg_addr, uint8_t *reg_data, uint16_t len)
{
int8_t rslt = 0; /* Return 0 for Success, non-zero for failure */
/*
* The parameter dev_id can be used as a variable to select which Chip Select pin has
* to be set low to activate the relevant device on the SPI bus
*/
/*
* Data on the bus should be like
* |----------------+---------------------+-------------|
* | MOSI | MISO | Chip Select |
* |----------------+---------------------|-------------|
* | (don't care) | (don't care) | HIGH |
* | (reg_addr) | (don't care) | LOW |
* | (don't care) | (reg_data[0]) | LOW |
* | (....) | (....) | LOW |
* | (don't care) | (reg_data[len - 1]) | LOW |
* | (don't care) | (don't care) | HIGH |
* |----------------+---------------------|-------------|
*/
return rslt;
}
int8_t user_spi_write(uint8_t dev_id, uint8_t reg_addr, uint8_t *reg_data, uint16_t len)
{
int8_t rslt = 0; /* Return 0 for Success, non-zero for failure */
/*
* The parameter dev_id can be used as a variable to select which Chip Select pin has
* to be set low to activate the relevant device on the SPI bus
*/
/*
* Data on the bus should be like
* |---------------------+--------------+-------------|
* | MOSI | MISO | Chip Select |
* |---------------------+--------------|-------------|
* | (don't care) | (don't care) | HIGH |
* | (reg_addr) | (don't care) | LOW |
* | (reg_data[0]) | (don't care) | LOW |
* | (....) | (....) | LOW |
* | (reg_data[len - 1]) | (don't care) | LOW |
* | (don't care) | (don't care) | HIGH |
* |---------------------+--------------|-------------|
*/
return rslt;
}
int8_t user_i2c_read(uint8_t dev_id, uint8_t reg_addr, uint8_t *reg_data, uint16_t len)
{
int8_t rslt = 0; /* Return 0 for Success, non-zero for failure */
/*
* The parameter dev_id can be used as a variable to store the I2C address of the device
*/
/*
* Data on the bus should be like
* |------------+---------------------|
* | I2C action | Data |
* |------------+---------------------|
* | Start | - |
* | Write | (reg_addr) |
* | Stop | - |
* | Start | - |
* | Read | (reg_data[0]) |
* | Read | (....) |
* | Read | (reg_data[len - 1]) |
* | Stop | - |
* |------------+---------------------|
*/
return rslt;
}
int8_t user_i2c_write(uint8_t dev_id, uint8_t reg_addr, uint8_t *reg_data, uint16_t len)
{
int8_t rslt = 0; /* Return 0 for Success, non-zero for failure */
/*
* The parameter dev_id can be used as a variable to store the I2C address of the device
*/
/*
* Data on the bus should be like
* |------------+---------------------|
* | I2C action | Data |
* |------------+---------------------|
* | Start | - |
* | Write | (reg_addr) |
* | Write | (reg_data[0]) |
* | Write | (....) |
* | Write | (reg_data[len - 1]) |
* | Stop | - |
* |------------+---------------------|
*/
return rslt;
}
```
## Copyright (C) 2017 - 2018 Bosch Sensortec GmbH
\ No newline at end of file
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/**\mainpage
* Copyright (C) 2017 - 2018 Bosch Sensortec GmbH
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of the copyright holder nor the names of the
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER
* OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
*
* The information provided is believed to be accurate and reliable.
* The copyright holder assumes no responsibility
* for the consequences of use
* of such information nor for any infringement of patents or
* other rights of third parties which may result from its use.
* No license is granted by implication or otherwise under any patent or
* patent rights of the copyright holder.
*
* File bme680_selftest.c
* @date 16 May 2018
* @version 3.5.3
*
*/
/*!
* @addtogroup bme680_selftest
* @brief
* @{*/
#include "bme680_selftest.h"
#define MIN_TEMPERATURE INT16_C(0) /* 0 degree Celsius */
#define MAX_TEMPERATURE INT16_C(6000) /* 60 degree Celsius */
#define MIN_PRESSURE UINT32_C(90000) /* 900 hecto Pascals */
#define MAX_PRESSURE UINT32_C(110000) /* 1100 hecto Pascals */
#define MIN_HUMIDITY UINT32_C(20000) /* 20% relative humidity */
#define MAX_HUMIDITY UINT32_C(80000) /* 80% relative humidity*/
#define HEATR_DUR 2000
#define N_MEAS 6
#define LOW_TEMP 150
#define HIGH_TEMP 350
/*!
* @brief Function to analyze the sensor data
*
* @param[in] data Array of measurement data
* @param[in] n_meas Number of measurements
*
* @return Error code
* @retval 0 Success
* @retval > 0 Warning
*/
static int8_t analyze_sensor_data(struct bme680_field_data *data, uint8_t n_meas);
/*!
* @brief Self-test API for the BME680
*/
int8_t bme680_self_test(struct bme680_dev *dev)
{
int8_t rslt = BME680_OK;
struct bme680_field_data data[N_MEAS];
struct bme680_dev t_dev;
/* Copy required parameters from reference bme680_dev struct */
t_dev.dev_id = dev->dev_id;
t_dev.amb_temp = 25;
t_dev.read = dev->read;
t_dev.write = dev->write;
t_dev.intf = dev->intf;
t_dev.delay_ms = dev->delay_ms;
rslt = bme680_init(&t_dev);
if (rslt == BME680_OK) {
/* Select the power mode */
/* Must be set before writing the sensor configuration */
t_dev.power_mode = BME680_FORCED_MODE;
uint16_t settings_sel;
/* Set the temperature, pressure and humidity & filter settings */
t_dev.tph_sett.os_hum = BME680_OS_1X;
t_dev.tph_sett.os_pres = BME680_OS_16X;
t_dev.tph_sett.os_temp = BME680_OS_2X;
/* Set the remaining gas sensor settings and link the heating profile */
t_dev.gas_sett.run_gas = BME680_ENABLE_GAS_MEAS;
t_dev.gas_sett.heatr_dur = HEATR_DUR;
settings_sel = BME680_OST_SEL | BME680_OSP_SEL | BME680_OSH_SEL | BME680_GAS_SENSOR_SEL;
uint16_t profile_dur = 0;
bme680_get_profile_dur(&profile_dur, &t_dev);
uint8_t i = 0;
while ((rslt == BME680_OK) && (i < N_MEAS)) {
if (rslt == BME680_OK) {
if (i % 2 == 0)
t_dev.gas_sett.heatr_temp = HIGH_TEMP; /* Higher temperature */
else
t_dev.gas_sett.heatr_temp = LOW_TEMP; /* Lower temperature */
rslt = bme680_set_sensor_settings(settings_sel, &t_dev);
if (rslt == BME680_OK) {
rslt = bme680_set_sensor_mode(&t_dev); /* Trigger a measurement */
t_dev.delay_ms(profile_dur); /* Wait for the measurement to complete */
rslt = bme680_get_sensor_data(&data[i], &t_dev);
}
}
i++;
}
if (rslt == BME680_OK)
rslt = analyze_sensor_data(data, N_MEAS);
}
return rslt;
}
/*!
* @brief Function to analyze the sensor data
*/
static int8_t analyze_sensor_data(struct bme680_field_data *data, uint8_t n_meas)
{
int8_t rslt = BME680_OK;
uint8_t self_test_failed = 0, i;
uint32_t cent_res = 0;
if ((data[0].temperature < MIN_TEMPERATURE) || (data[0].temperature > MAX_TEMPERATURE))
self_test_failed++;
if ((data[0].pressure < MIN_PRESSURE) || (data[0].pressure > MAX_PRESSURE))
self_test_failed++;
if ((data[0].humidity < MIN_HUMIDITY) || (data[0].humidity > MAX_HUMIDITY))
self_test_failed++;
for (i = 0; i < n_meas; i++) /* Every gas measurement should be valid */
if (!(data[i].status & BME680_GASM_VALID_MSK))
self_test_failed++;
if (n_meas >= 6)
cent_res = (data[3].gas_resistance + data[5].gas_resistance) / (2 * data[4].gas_resistance);
if ((cent_res * 5) < 6)
self_test_failed++;
if (self_test_failed)
rslt = BME680_W_SELF_TEST_FAILED;
return rslt;
}
/** @}*/
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/**
* Copyright (C) 2017 - 2018 Bosch Sensortec GmbH
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of the copyright holder nor the names of the
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER
* OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
*
* The information provided is believed to be accurate and reliable.
* The copyright holder assumes no responsibility
* for the consequences of use
* of such information nor for any infringement of patents or
* other rights of third parties which may result from its use.
* No license is granted by implication or otherwise under any patent or
* patent rights of the copyright holder.
*
* @file bme680_selftest.h
* @date 16 May 2018
* @version 3.5.3
* @brief
*
*/
/*!
* @addtogroup bme680_selftest
* @brief
* @{*/
#ifndef BME680_SELFTEST_H_
#define BME680_SELFTEST_H_
#include "bme680.h"
/*! CPP guard */
#ifdef __cplusplus
extern "C"
{
#endif
#define BME680_W_SELF_TEST_FAILED 3
/*!
* @brief Self-test API for the BME680
*
* @param[in] Device structure containing relevant information on how
* to communicate with the sensor
*
* @return Error code
* @retval 0 Success
* @retval < 0 Error
* @retval > 0 Warning
*/
int8_t bme680_self_test(struct bme680_dev *dev);
/*! CPP guard */
#ifdef __cplusplus
}
#endif
#endif /* BME680_SELFTEST_H_ */
/** @}*/
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/**
* Copyright (C) 2017 - 2018 Bosch Sensortec GmbH
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of the copyright holder nor the names of the
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER
* OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
*
* The information provided is believed to be accurate and reliable.
* The copyright holder assumes no responsibility
* for the consequences of use
* of such information nor for any infringement of patents or
* other rights of third parties which may result from its use.
* No license is granted by implication or otherwise under any patent or
* patent rights of the copyright holder.
*
* @file bme680.h
* @date 19 Jun 2018
* @version 3.5.9
* @brief
*
*/
/*! @file bme680.h
@brief Sensor driver for BME680 sensor */
/*!
* @defgroup BME680 SENSOR API
* @{*/
#ifndef BME680_H_
#define BME680_H_
/*! CPP guard */
#ifdef __cplusplus
extern "C"
{
#endif
/* Header includes */
#include "bme680_defs.h"
/* function prototype declarations */
/*!
* @brief This API is the entry point.
* It reads the chip-id and calibration data from the sensor.
*
* @param[in,out] dev : Structure instance of bme680_dev
*
* @return Result of API execution status
* @retval zero -> Success / +ve value -> Warning / -ve value -> Error
*/
int8_t bme680_init(struct bme680_dev *dev);
/*!
* @brief This API writes the given data to the register address
* of the sensor.
*
* @param[in] reg_addr : Register address from where the data to be written.
* @param[in] reg_data : Pointer to data buffer which is to be written
* in the sensor.
* @param[in] len : No of bytes of data to write..
* @param[in] dev : Structure instance of bme680_dev.
*
* @return Result of API execution status
* @retval zero -> Success / +ve value -> Warning / -ve value -> Error
*/
int8_t bme680_set_regs(const uint8_t *reg_addr, const uint8_t *reg_data, uint8_t len, struct bme680_dev *dev);
/*!
* @brief This API reads the data from the given register address of the sensor.
*
* @param[in] reg_addr : Register address from where the data to be read
* @param[out] reg_data : Pointer to data buffer to store the read data.
* @param[in] len : No of bytes of data to be read.
* @param[in] dev : Structure instance of bme680_dev.
*
* @return Result of API execution status
* @retval zero -> Success / +ve value -> Warning / -ve value -> Error
*/
int8_t bme680_get_regs(uint8_t reg_addr, uint8_t *reg_data, uint16_t len, struct bme680_dev *dev);
/*!
* @brief This API performs the soft reset of the sensor.
*
* @param[in] dev : Structure instance of bme680_dev.
*
* @return Result of API execution status
* @retval zero -> Success / +ve value -> Warning / -ve value -> Error.
*/
int8_t bme680_soft_reset(struct bme680_dev *dev);
/*!
* @brief This API is used to set the power mode of the sensor.
*
* @param[in] dev : Structure instance of bme680_dev
* @note : Pass the value to bme680_dev.power_mode structure variable.
*
* value | mode
* -------------|------------------
* 0x00 | BME680_SLEEP_MODE
* 0x01 | BME680_FORCED_MODE
*
* * @return Result of API execution status
* @retval zero -> Success / +ve value -> Warning / -ve value -> Error
*/
int8_t bme680_set_sensor_mode(struct bme680_dev *dev);
/*!
* @brief This API is used to get the power mode of the sensor.
*
* @param[in] dev : Structure instance of bme680_dev
* @note : bme680_dev.power_mode structure variable hold the power mode.
*
* value | mode
* ---------|------------------
* 0x00 | BME680_SLEEP_MODE
* 0x01 | BME680_FORCED_MODE
*
* @return Result of API execution status
* @retval zero -> Success / +ve value -> Warning / -ve value -> Error
*/
int8_t bme680_get_sensor_mode(struct bme680_dev *dev);
/*!
* @brief This API is used to set the profile duration of the sensor.
*
* @param[in] dev : Structure instance of bme680_dev.
* @param[in] duration : Duration of the measurement in ms.
*
* @return Nothing
*/
void bme680_set_profile_dur(uint16_t duration, struct bme680_dev *dev);
/*!
* @brief This API is used to get the profile duration of the sensor.
*
* @param[in] dev : Structure instance of bme680_dev.
* @param[in] duration : Duration of the measurement in ms.
*
* @return Nothing
*/
void bme680_get_profile_dur(uint16_t *duration, const struct bme680_dev *dev);
/*!
* @brief This API reads the pressure, temperature and humidity and gas data
* from the sensor, compensates the data and store it in the bme680_data
* structure instance passed by the user.
*
* @param[out] data: Structure instance to hold the data.
* @param[in] dev : Structure instance of bme680_dev.
*
* @return Result of API execution status
* @retval zero -> Success / +ve value -> Warning / -ve value -> Error
*/
int8_t bme680_get_sensor_data(struct bme680_field_data *data, struct bme680_dev *dev);
/*!
* @brief This API is used to set the oversampling, filter and T,P,H, gas selection
* settings in the sensor.
*
* @param[in] dev : Structure instance of bme680_dev.
* @param[in] desired_settings : Variable used to select the settings which
* are to be set in the sensor.
*
* Macros | Functionality
*---------------------------------|----------------------------------------------
* BME680_OST_SEL | To set temperature oversampling.
* BME680_OSP_SEL | To set pressure oversampling.
* BME680_OSH_SEL | To set humidity oversampling.
* BME680_GAS_MEAS_SEL | To set gas measurement setting.
* BME680_FILTER_SEL | To set filter setting.
* BME680_HCNTRL_SEL | To set humidity control setting.
* BME680_RUN_GAS_SEL | To set run gas setting.
* BME680_NBCONV_SEL | To set NB conversion setting.
* BME680_GAS_SENSOR_SEL | To set all gas sensor related settings
*
* @note : Below are the macros to be used by the user for selecting the
* desired settings. User can do OR operation of these macros for configuring
* multiple settings.
*
* @return Result of API execution status
* @retval zero -> Success / +ve value -> Warning / -ve value -> Error.
*/
int8_t bme680_set_sensor_settings(uint16_t desired_settings, struct bme680_dev *dev);
/*!
* @brief This API is used to get the oversampling, filter and T,P,H, gas selection
* settings in the sensor.
*
* @param[in] dev : Structure instance of bme680_dev.
* @param[in] desired_settings : Variable used to select the settings which
* are to be get from the sensor.
*
* @return Result of API execution status
* @retval zero -> Success / +ve value -> Warning / -ve value -> Error.
*/
int8_t bme680_get_sensor_settings(uint16_t desired_settings, struct bme680_dev *dev);
#ifdef __cplusplus
}
#endif /* End of CPP guard */
#endif /* BME680_H_ */
/** @}*/
lib/bosch/BME680_driver/bme680_defs.h 0 → 100644
+ 545
− 0
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/**
* Copyright (C) 2017 - 2018 Bosch Sensortec GmbH
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* Neither the name of the copyright holder nor the names of the
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL COPYRIGHT HOLDER
* OR CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
*
* The information provided is believed to be accurate and reliable.
* The copyright holder assumes no responsibility
* for the consequences of use
* of such information nor for any infringement of patents or
* other rights of third parties which may result from its use.
* No license is granted by implication or otherwise under any patent or
* patent rights of the copyright holder.
*
* @file bme680_defs.h
* @date 19 Jun 2018
* @version 3.5.9
* @brief
*
*/
/*! @file bme680_defs.h
@brief Sensor driver for BME680 sensor */
/*!
* @defgroup BME680 SENSOR API
* @brief
* @{*/
#ifndef BME680_DEFS_H_
#define BME680_DEFS_H_
/********************************************************/
/* header includes */
#ifdef __KERNEL__
#include <linux/types.h>
#include <linux/kernel.h>
#else
#include <stdint.h>
#include <stddef.h>
#endif
/******************************************************************************/
/*! @name Common macros */
/******************************************************************************/
#if !defined(UINT8_C) && !defined(INT8_C)
#define INT8_C(x) S8_C(x)
#define UINT8_C(x) U8_C(x)
#endif
#if !defined(UINT16_C) && !defined(INT16_C)
#define INT16_C(x) S16_C(x)
#define UINT16_C(x) U16_C(x)
#endif
#if !defined(INT32_C) && !defined(UINT32_C)
#define INT32_C(x) S32_C(x)
#define UINT32_C(x) U32_C(x)
#endif
#if !defined(INT64_C) && !defined(UINT64_C)
#define INT64_C(x) S64_C(x)
#define UINT64_C(x) U64_C(x)
#endif
/**@}*/
/**\name C standard macros */
#ifndef NULL
#ifdef __cplusplus
#define NULL 0
#else
#define NULL ((void *) 0)
#endif
#endif
/** BME680 configuration macros */
/** Enable or un-comment the macro to provide floating point data output */
#ifndef BME680_FLOAT_POINT_COMPENSATION
/* #define BME680_FLOAT_POINT_COMPENSATION */
#endif
/** BME680 General config */
#define BME680_POLL_PERIOD_MS UINT8_C(10)
/** BME680 I2C addresses */
#define BME680_I2C_ADDR_PRIMARY UINT8_C(0x76)
#define BME680_I2C_ADDR_SECONDARY UINT8_C(0x77)
/** BME680 unique chip identifier */
#define BME680_CHIP_ID UINT8_C(0x61)
/** BME680 coefficients related defines */
#define BME680_COEFF_SIZE UINT8_C(41)
#define BME680_COEFF_ADDR1_LEN UINT8_C(25)
#define BME680_COEFF_ADDR2_LEN UINT8_C(16)
/** BME680 field_x related defines */
#define BME680_FIELD_LENGTH UINT8_C(15)
#define BME680_FIELD_ADDR_OFFSET UINT8_C(17)
/** Soft reset command */
#define BME680_SOFT_RESET_CMD UINT8_C(0xb6)
/** Error code definitions */
#define BME680_OK INT8_C(0)
/* Errors */
#define BME680_E_NULL_PTR INT8_C(-1)
#define BME680_E_COM_FAIL INT8_C(-2)
#define BME680_E_DEV_NOT_FOUND INT8_C(-3)
#define BME680_E_INVALID_LENGTH INT8_C(-4)
/* Warnings */
#define BME680_W_DEFINE_PWR_MODE INT8_C(1)
#define BME680_W_NO_NEW_DATA INT8_C(2)
/* Info's */
#define BME680_I_MIN_CORRECTION UINT8_C(1)
#define BME680_I_MAX_CORRECTION UINT8_C(2)
/** Register map */
/** Other coefficient's address */
#define BME680_ADDR_RES_HEAT_VAL_ADDR UINT8_C(0x00)
#define BME680_ADDR_RES_HEAT_RANGE_ADDR UINT8_C(0x02)
#define BME680_ADDR_RANGE_SW_ERR_ADDR UINT8_C(0x04)
#define BME680_ADDR_SENS_CONF_START UINT8_C(0x5A)
#define BME680_ADDR_GAS_CONF_START UINT8_C(0x64)
/** Field settings */
#define BME680_FIELD0_ADDR UINT8_C(0x1d)
/** Heater settings */
#define BME680_RES_HEAT0_ADDR UINT8_C(0x5a)
#define BME680_GAS_WAIT0_ADDR UINT8_C(0x64)
/** Sensor configuration registers */
#define BME680_CONF_HEAT_CTRL_ADDR UINT8_C(0x70)
#define BME680_CONF_ODR_RUN_GAS_NBC_ADDR UINT8_C(0x71)
#define BME680_CONF_OS_H_ADDR UINT8_C(0x72)
#define BME680_MEM_PAGE_ADDR UINT8_C(0xf3)
#define BME680_CONF_T_P_MODE_ADDR UINT8_C(0x74)
#define BME680_CONF_ODR_FILT_ADDR UINT8_C(0x75)
/** Coefficient's address */
#define BME680_COEFF_ADDR1 UINT8_C(0x89)
#define BME680_COEFF_ADDR2 UINT8_C(0xe1)
/** Chip identifier */
#define BME680_CHIP_ID_ADDR UINT8_C(0xd0)
/** Soft reset register */
#define BME680_SOFT_RESET_ADDR UINT8_C(0xe0)
/** Heater control settings */
#define BME680_ENABLE_HEATER UINT8_C(0x00)
#define BME680_DISABLE_HEATER UINT8_C(0x08)
/** Gas measurement settings */
#define BME680_DISABLE_GAS_MEAS UINT8_C(0x00)
#define BME680_ENABLE_GAS_MEAS UINT8_C(0x01)
/** Over-sampling settings */
#define BME680_OS_NONE UINT8_C(0)
#define BME680_OS_1X UINT8_C(1)
#define BME680_OS_2X UINT8_C(2)
#define BME680_OS_4X UINT8_C(3)
#define BME680_OS_8X UINT8_C(4)
#define BME680_OS_16X UINT8_C(5)
/** IIR filter settings */
#define BME680_FILTER_SIZE_0 UINT8_C(0)
#define BME680_FILTER_SIZE_1 UINT8_C(1)
#define BME680_FILTER_SIZE_3 UINT8_C(2)
#define BME680_FILTER_SIZE_7 UINT8_C(3)
#define BME680_FILTER_SIZE_15 UINT8_C(4)
#define BME680_FILTER_SIZE_31 UINT8_C(5)
#define BME680_FILTER_SIZE_63 UINT8_C(6)
#define BME680_FILTER_SIZE_127 UINT8_C(7)
/** Power mode settings */
#define BME680_SLEEP_MODE UINT8_C(0)
#define BME680_FORCED_MODE UINT8_C(1)
/** Delay related macro declaration */
#define BME680_RESET_PERIOD UINT32_C(10)
/** SPI memory page settings */
#define BME680_MEM_PAGE0 UINT8_C(0x10)
#define BME680_MEM_PAGE1 UINT8_C(0x00)
/** Ambient humidity shift value for compensation */
#define BME680_HUM_REG_SHIFT_VAL UINT8_C(4)
/** Run gas enable and disable settings */
#define BME680_RUN_GAS_DISABLE UINT8_C(0)
#define BME680_RUN_GAS_ENABLE UINT8_C(1)
/** Buffer length macro declaration */
#define BME680_TMP_BUFFER_LENGTH UINT8_C(40)
#define BME680_REG_BUFFER_LENGTH UINT8_C(6)
#define BME680_FIELD_DATA_LENGTH UINT8_C(3)
#define BME680_GAS_REG_BUF_LENGTH UINT8_C(20)
/** Settings selector */
#define BME680_OST_SEL UINT16_C(1)
#define BME680_OSP_SEL UINT16_C(2)
#define BME680_OSH_SEL UINT16_C(4)
#define BME680_GAS_MEAS_SEL UINT16_C(8)
#define BME680_FILTER_SEL UINT16_C(16)
#define BME680_HCNTRL_SEL UINT16_C(32)
#define BME680_RUN_GAS_SEL UINT16_C(64)
#define BME680_NBCONV_SEL UINT16_C(128)
#define BME680_GAS_SENSOR_SEL (BME680_GAS_MEAS_SEL | BME680_RUN_GAS_SEL | BME680_NBCONV_SEL)
/** Number of conversion settings*/
#define BME680_NBCONV_MIN UINT8_C(0)
#define BME680_NBCONV_MAX UINT8_C(10)
/** Mask definitions */
#define BME680_GAS_MEAS_MSK UINT8_C(0x30)
#define BME680_NBCONV_MSK UINT8_C(0X0F)
#define BME680_FILTER_MSK UINT8_C(0X1C)
#define BME680_OST_MSK UINT8_C(0XE0)
#define BME680_OSP_MSK UINT8_C(0X1C)
#define BME680_OSH_MSK UINT8_C(0X07)
#define BME680_HCTRL_MSK UINT8_C(0x08)
#define BME680_RUN_GAS_MSK UINT8_C(0x10)
#define BME680_MODE_MSK UINT8_C(0x03)
#define BME680_RHRANGE_MSK UINT8_C(0x30)
#define BME680_RSERROR_MSK UINT8_C(0xf0)
#define BME680_NEW_DATA_MSK UINT8_C(0x80)
#define BME680_GAS_INDEX_MSK UINT8_C(0x0f)
#define BME680_GAS_RANGE_MSK UINT8_C(0x0f)
#define BME680_GASM_VALID_MSK UINT8_C(0x20)
#define BME680_HEAT_STAB_MSK UINT8_C(0x10)
#define BME680_MEM_PAGE_MSK UINT8_C(0x10)
#define BME680_SPI_RD_MSK UINT8_C(0x80)
#define BME680_SPI_WR_MSK UINT8_C(0x7f)
#define BME680_BIT_H1_DATA_MSK UINT8_C(0x0F)
/** Bit position definitions for sensor settings */
#define BME680_GAS_MEAS_POS UINT8_C(4)
#define BME680_FILTER_POS UINT8_C(2)
#define BME680_OST_POS UINT8_C(5)
#define BME680_OSP_POS UINT8_C(2)
#define BME680_RUN_GAS_POS UINT8_C(4)
/** Array Index to Field data mapping for Calibration Data*/
#define BME680_T2_LSB_REG (1)
#define BME680_T2_MSB_REG (2)
#define BME680_T3_REG (3)
#define BME680_P1_LSB_REG (5)
#define BME680_P1_MSB_REG (6)
#define BME680_P2_LSB_REG (7)
#define BME680_P2_MSB_REG (8)
#define BME680_P3_REG (9)
#define BME680_P4_LSB_REG (11)
#define BME680_P4_MSB_REG (12)
#define BME680_P5_LSB_REG (13)
#define BME680_P5_MSB_REG (14)
#define BME680_P7_REG (15)
#define BME680_P6_REG (16)
#define BME680_P8_LSB_REG (19)
#define BME680_P8_MSB_REG (20)
#define BME680_P9_LSB_REG (21)
#define BME680_P9_MSB_REG (22)
#define BME680_P10_REG (23)
#define BME680_H2_MSB_REG (25)
#define BME680_H2_LSB_REG (26)
#define BME680_H1_LSB_REG (26)
#define BME680_H1_MSB_REG (27)
#define BME680_H3_REG (28)
#define BME680_H4_REG (29)
#define BME680_H5_REG (30)
#define BME680_H6_REG (31)
#define BME680_H7_REG (32)
#define BME680_T1_LSB_REG (33)
#define BME680_T1_MSB_REG (34)
#define BME680_GH2_LSB_REG (35)
#define BME680_GH2_MSB_REG (36)
#define BME680_GH1_REG (37)
#define BME680_GH3_REG (38)
/** BME680 register buffer index settings*/
#define BME680_REG_FILTER_INDEX UINT8_C(5)
#define BME680_REG_TEMP_INDEX UINT8_C(4)
#define BME680_REG_PRES_INDEX UINT8_C(4)
#define BME680_REG_HUM_INDEX UINT8_C(2)
#define BME680_REG_NBCONV_INDEX UINT8_C(1)
#define BME680_REG_RUN_GAS_INDEX UINT8_C(1)
#define BME680_REG_HCTRL_INDEX UINT8_C(0)
/** BME680 pressure calculation macros */
/*! This max value is used to provide precedence to multiplication or division
* in pressure compensation equation to achieve least loss of precision and
* avoiding overflows.
* i.e Comparing value, BME680_MAX_OVERFLOW_VAL = INT32_C(1 << 30)
*/
#define BME680_MAX_OVERFLOW_VAL INT32_C(0x40000000)
/** Macro to combine two 8 bit data's to form a 16 bit data */
#define BME680_CONCAT_BYTES(msb, lsb) (((uint16_t)msb << 8) | (uint16_t)lsb)
/** Macro to SET and GET BITS of a register */
#define BME680_SET_BITS(reg_data, bitname, data) \
((reg_data & ~(bitname##_MSK)) | \
((data << bitname##_POS) & bitname##_MSK))
#define BME680_GET_BITS(reg_data, bitname) ((reg_data & (bitname##_MSK)) >> \
(bitname##_POS))
/** Macro variant to handle the bitname position if it is zero */
#define BME680_SET_BITS_POS_0(reg_data, bitname, data) \
((reg_data & ~(bitname##_MSK)) | \
(data & bitname##_MSK))
#define BME680_GET_BITS_POS_0(reg_data, bitname) (reg_data & (bitname##_MSK))
/** Type definitions */
/*!
* Generic communication function pointer
* @param[in] dev_id: Place holder to store the id of the device structure
* Can be used to store the index of the Chip select or
* I2C address of the device.
* @param[in] reg_addr: Used to select the register the where data needs to
* be read from or written to.
* @param[in/out] reg_data: Data array to read/write
* @param[in] len: Length of the data array
*/
typedef int8_t (*bme680_com_fptr_t)(uint8_t dev_id, uint8_t reg_addr, uint8_t *data, uint16_t len);
/*!
* Delay function pointer
* @param[in] period: Time period in milliseconds
*/
typedef void (*bme680_delay_fptr_t)(uint32_t period);
/*!
* @brief Interface selection Enumerations
*/
enum bme680_intf {
/*! SPI interface */
BME680_SPI_INTF,
/*! I2C interface */
BME680_I2C_INTF
};
/* structure definitions */
/*!
* @brief Sensor field data structure
*/
struct bme680_field_data {
/*! Contains new_data, gasm_valid & heat_stab */
uint8_t status;
/*! The index of the heater profile used */
uint8_t gas_index;
/*! Measurement index to track order */
uint8_t meas_index;
#ifndef BME680_FLOAT_POINT_COMPENSATION
/*! Temperature in degree celsius x100 */
int16_t temperature;
/*! Pressure in Pascal */
uint32_t pressure;
/*! Humidity in % relative humidity x1000 */
uint32_t humidity;
/*! Gas resistance in Ohms */
uint32_t gas_resistance;
#else
/*! Temperature in degree celsius */
float temperature;
/*! Pressure in Pascal */
float pressure;
/*! Humidity in % relative humidity x1000 */
float humidity;
/*! Gas resistance in Ohms */
float gas_resistance;
#endif
};
/*!
* @brief Structure to hold the Calibration data
*/
struct bme680_calib_data {
/*! Variable to store calibrated humidity data */
uint16_t par_h1;
/*! Variable to store calibrated humidity data */
uint16_t par_h2;
/*! Variable to store calibrated humidity data */
int8_t par_h3;
/*! Variable to store calibrated humidity data */
int8_t par_h4;
/*! Variable to store calibrated humidity data */
int8_t par_h5;
/*! Variable to store calibrated humidity data */
uint8_t par_h6;
/*! Variable to store calibrated humidity data */
int8_t par_h7;
/*! Variable to store calibrated gas data */
int8_t par_gh1;
/*! Variable to store calibrated gas data */
int16_t par_gh2;
/*! Variable to store calibrated gas data */
int8_t par_gh3;
/*! Variable to store calibrated temperature data */
uint16_t par_t1;
/*! Variable to store calibrated temperature data */
int16_t par_t2;
/*! Variable to store calibrated temperature data */
int8_t par_t3;
/*! Variable to store calibrated pressure data */
uint16_t par_p1;
/*! Variable to store calibrated pressure data */
int16_t par_p2;
/*! Variable to store calibrated pressure data */
int8_t par_p3;
/*! Variable to store calibrated pressure data */
int16_t par_p4;
/*! Variable to store calibrated pressure data */
int16_t par_p5;
/*! Variable to store calibrated pressure data */
int8_t par_p6;
/*! Variable to store calibrated pressure data */
int8_t par_p7;
/*! Variable to store calibrated pressure data */
int16_t par_p8;
/*! Variable to store calibrated pressure data */
int16_t par_p9;
/*! Variable to store calibrated pressure data */
uint8_t par_p10;
#ifndef BME680_FLOAT_POINT_COMPENSATION
/*! Variable to store t_fine size */
int32_t t_fine;
#else
/*! Variable to store t_fine size */
float t_fine;
#endif
/*! Variable to store heater resistance range */
uint8_t res_heat_range;
/*! Variable to store heater resistance value */
int8_t res_heat_val;
/*! Variable to store error range */
int8_t range_sw_err;
};
/*!
* @brief BME680 sensor settings structure which comprises of ODR,
* over-sampling and filter settings.
*/
struct bme680_tph_sett {
/*! Humidity oversampling */
uint8_t os_hum;
/*! Temperature oversampling */
uint8_t os_temp;
/*! Pressure oversampling */
uint8_t os_pres;
/*! Filter coefficient */
uint8_t filter;
};
/*!
* @brief BME680 gas sensor which comprises of gas settings
* and status parameters
*/
struct bme680_gas_sett {
/*! Variable to store nb conversion */
uint8_t nb_conv;
/*! Variable to store heater control */
uint8_t heatr_ctrl;
/*! Run gas enable value */
uint8_t run_gas;
/*! Heater temperature value */
uint16_t heatr_temp;
/*! Duration profile value */
uint16_t heatr_dur;
};
/*!
* @brief BME680 device structure
*/
struct bme680_dev {
/*! Chip Id */
uint8_t chip_id;
/*! Device Id */
uint8_t dev_id;
/*! SPI/I2C interface */
enum bme680_intf intf;
/*! Memory page used */
uint8_t mem_page;
/*! Ambient temperature in Degree C */
int8_t amb_temp;
/*! Sensor calibration data */
struct bme680_calib_data calib;
/*! Sensor settings */
struct bme680_tph_sett tph_sett;
/*! Gas Sensor settings */
struct bme680_gas_sett gas_sett;
/*! Sensor power modes */
uint8_t power_mode;
/*! New sensor fields */
uint8_t new_fields;
/*! Store the info messages */
uint8_t info_msg;
/*! Bus read function pointer */
bme680_com_fptr_t read;
/*! Bus write function pointer */
bme680_com_fptr_t write;
/*! delay function pointer */
bme680_delay_fptr_t delay_ms;
/*! Communication function result */
int8_t com_rslt;
};
#endif /* BME680_DEFS_H_ */
/** @}*/
/** @}*/
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