bmp581 Namespace Reference

Namespaces
namespace	addr
	7-bit I2C addresses (SDO low → 0x46, SDO high → 0x47).
namespace	chip_id
	Chip identifiers accepted by Driver::Init().
namespace	cmd
	Command register values.
namespace	detail
namespace	dsp_config
	DSP_CONFIG (0x30) fields.
namespace	dsp_iir
	DSP_IIR (0x31) fields.
namespace	int_config
	INT_CONFIG (0x14) fields.
namespace	int_source
	INT_SOURCE (0x15) enable bits.
namespace	int_status
	INT_STATUS (0x27) bits.
namespace	nvm
	NVM user space (3 × 16-bit words).
namespace	odr_config
	ODR_CONFIG (0x37) fields.
namespace	osr_config
	OSR_CONFIG (0x36) fields.
namespace	osr_eff
	OSR_EFF (0x38) fields.
namespace	reg
	Register addresses.
namespace	status
	STATUS (0x28) bits.
namespace	timing
	Timing (data sheet / Bosch API).

Classes
class	BusInterface
	CRTP base for the BMP581 register transport. More...
struct	Config
	Convenience: one-call configuration for Driver::Configure(). More...
class	Driver
	BMP581 client. More...
struct	DriverResult
struct	DriverResult< void >
struct	EffectiveOsr
	Effective oversampling and ODR validity (OSR_EFF). More...
struct	IirConfig
	IIR configuration (DSP_CONFIG + DSP_IIR). Writable in standby only. More...
struct	InterruptConfig
	Interrupt pin configuration (INT_CONFIG). More...
struct	InterruptSources
	Interrupt sources (INT_SOURCE). More...
struct	OsrOdrConfig
	Oversampling / ODR / pressure-enable (OSR_CONFIG + ODR_CONFIG). More...
struct	Sample
	One pressure / temperature sample. More...

Enumerations
enum class	Interface : uint8_t { Unspecified = 0 , I2c = 1 , Spi = 2 }
	Bus an adapter drives, declared as static constexpr Interface kInterface (optional). More...
enum class	PowerMode : uint8_t {   Standby = 0 , Normal = 1 , Forced = 2 , Continuous = 3 ,   DeepStandby = 4 }
	Power modes (ODR_CONFIG bits 1:0; deep standby = standby with deep_dis = 0). More...
enum class	Oversampling : uint8_t {   X1 = 0 , X2 = 1 , X4 = 2 , X8 = 3 ,   X16 = 4 , X32 = 5 , X64 = 6 , X128 = 7 }
	Oversampling (OSR_CONFIG). More...
enum class	Odr : uint8_t {   Hz240 = 0x00 , Hz218_5 = 0x01 , Hz199_1 = 0x02 , Hz179_2 = 0x03 ,   Hz160 = 0x04 , Hz149_3 = 0x05 , Hz140 = 0x06 , Hz129_8 = 0x07 ,   Hz120 = 0x08 , Hz110_1 = 0x09 , Hz100_2 = 0x0A , Hz89_6 = 0x0B ,   Hz80 = 0x0C , Hz70 = 0x0D , Hz60 = 0x0E , Hz50 = 0x0F ,   Hz45 = 0x10 , Hz40 = 0x11 , Hz35 = 0x12 , Hz30 = 0x13 ,   Hz25 = 0x14 , Hz20 = 0x15 , Hz15 = 0x16 , Hz10 = 0x17 ,   Hz5 = 0x18 , Hz4 = 0x19 , Hz3 = 0x1A , Hz2 = 0x1B ,   Hz1 = 0x1C , Hz0_5 = 0x1D , Hz0_25 = 0x1E , Hz0_125 = 0x1F }
	Output data rate (ODR_CONFIG bits 6:2). Codes ascend as rate descends. More...
enum class	IirFilter : uint8_t {   Bypass = 0 , Coeff1 = 1 , Coeff3 = 2 , Coeff7 = 3 ,   Coeff15 = 4 , Coeff31 = 5 , Coeff63 = 6 , Coeff127 = 7 }
	IIR filter coefficient (DSP_IIR). More...
enum class	IntMode : uint8_t { Pulsed = 0 , Latched = 1 }
	Interrupt pin behaviour. More...
enum class	IntPolarity : uint8_t { ActiveLow = 0 , ActiveHigh = 1 }
enum class	IntDrive : uint8_t { PushPull = 0 , OpenDrain = 1 }
enum class	DriverError : uint8_t {   None = 0 , InvalidParameter , NotInitialized , Bus ,   InvalidChipId , NvmNotReady , PorSoftReset , InvalidPowerMode ,   NvmInvalidAddr , NvmCommandError }
	Driver-level error codes (stable for logging / telemetry). More...

Functions
const char *	GetDriverVersion () noexcept
	Driver version string (from generated bmp581_version.h).
constexpr float	OdrHz (Odr odr) noexcept
	ODR code → nominal rate in Hz (for logging / loop-rate planning).
constexpr std::string_view	ToString (DriverError e) noexcept
constexpr std::string_view	ToString (PowerMode m) noexcept
constexpr Config	BarometricReferencePreset () noexcept
	Barometric preset for a ~100 Hz reference channel. OSR ×8 pressure / ×1 temperature keeps the ODR valid at 100 Hz on the BMP581; IIR coeff 3 trims the last few Pa of noise without adding meaningful lag.

Variables
template<typename Bus >
constexpr Interface	kBusInterface = detail::DeclaredInterface<Bus>::value
	The interface adapter Bus declares, or Interface::Unspecified.
constexpr float	kPressureLsbPerPa = 64.0f
	Raw → engineering scaling (data sheet §4.x, Bosch API).
constexpr float	kTemperatureLsbPerC = 65536.0f
	temperature_c = raw / 65536

Enumeration Type Documentation

DriverError

enum class bmp581::DriverError : uint8_t

strong

Driver-level error codes (stable for logging / telemetry).

Enumerator
None
InvalidParameter
NotInitialized	transport EnsureInitialized() failed
Bus	register read/write failed
InvalidChipId	CHIP_ID not 0x50 / 0x51.
NvmNotReady	STATUS.nvm_rdy clear or nvm_err set.
PorSoftReset	INT_STATUS.por_softreset_complete not set after reset.
InvalidPowerMode
NvmInvalidAddr	outside 0x20..0x22
NvmCommandError	STATUS.nvm_cmd_err set.

IirFilter

enum class bmp581::IirFilter : uint8_t

strong

IIR filter coefficient (DSP_IIR).

Enumerator
Bypass
Coeff1
Coeff3
Coeff7
Coeff15
Coeff31
Coeff63
Coeff127

IntDrive

enum class bmp581::IntDrive : uint8_t

strong

Enumerator
PushPull
OpenDrain

Interface

enum class bmp581::Interface : uint8_t

strong

Bus an adapter drives, declared as static constexpr Interface kInterface (optional).

Enumerator
Unspecified	not declared: the driver handles both I2C and SPI behaviour
I2c
Spi

IntMode

enum class bmp581::IntMode : uint8_t

strong

Interrupt pin behaviour.

Enumerator
Pulsed
Latched

IntPolarity

enum class bmp581::IntPolarity : uint8_t

strong

Enumerator
ActiveLow
ActiveHigh

Odr

enum class bmp581::Odr : uint8_t

strong

Output data rate (ODR_CONFIG bits 6:2). Codes ascend as rate descends.

Enumerator
Hz240
Hz218_5
Hz199_1
Hz179_2
Hz160
Hz149_3
Hz140
Hz129_8
Hz120
Hz110_1
Hz100_2
Hz89_6
Hz80
Hz70
Hz60
Hz50
Hz45
Hz40
Hz35
Hz30
Hz25
Hz20
Hz15
Hz10
Hz5
Hz4
Hz3
Hz2
Hz1
Hz0_5
Hz0_25
Hz0_125

Oversampling

enum class bmp581::Oversampling : uint8_t

strong

Oversampling (OSR_CONFIG).

Enumerator
X1
X2
X4
X8
X16
X32
X64
X128

PowerMode

enum class bmp581::PowerMode : uint8_t

strong

Power modes (ODR_CONFIG bits 1:0; deep standby = standby with deep_dis = 0).

Enumerator
Standby
Normal	periodic at ODR
Forced	one conversion then standby
Continuous	back-to-back conversions
DeepStandby	pseudo-mode: standby + deep_dis cleared

Function Documentation

BarometricReferencePreset()

constexpr Config bmp581::BarometricReferencePreset ( )

constexprnoexcept

Barometric preset for a ~100 Hz reference channel. OSR ×8 pressure / ×1 temperature keeps the ODR valid at 100 Hz on the BMP581; IIR coeff 3 trims the last few Pa of noise without adding meaningful lag.

GetDriverVersion()

const char * bmp581::GetDriverVersion ( )

inlinenoexcept

Driver version string (from generated bmp581_version.h).

OdrHz()

constexpr float bmp581::OdrHz ( Odr  odr )

constexprnoexcept

ODR code → nominal rate in Hz (for logging / loop-rate planning).

ToString() [1/2]

constexpr std::string_view bmp581::ToString ( DriverError  e )

constexprnoexcept

ToString() [2/2]

constexpr std::string_view bmp581::ToString ( PowerMode  m )

constexprnoexcept

Variable Documentation

kBusInterface

template<typename Bus >

constexpr Interface bmp581::kBusInterface = detail::DeclaredInterface<Bus>::value

inlineconstexpr

The interface adapter Bus declares, or Interface::Unspecified.

kPressureLsbPerPa

constexpr float bmp581::kPressureLsbPerPa = 64.0f

constexpr

Raw → engineering scaling (data sheet §4.x, Bosch API).

pressure_pa = raw / 64

kTemperatureLsbPerC

constexpr float bmp581::kTemperatureLsbPerC = 65536.0f

constexpr

temperature_c = raw / 65536