unit_sh200q_data.hpp File Reference

SH200Q setting enums and measurement data (framework independent) More...

#include <array>
#include <cstdint>

Go to the source code of this file.

Classes
struct	m5::unit::sh200q::Data
	One measurement (14 bytes burst from REG_OUTPUT, little-endian – NOT the MPU byte order) More...

Namespaces
namespace	m5
	Top level namespace of M5Stack.

Enumerations
enum class	m5::unit::sh200q::AccelRange : uint8_t { G4 , G8 , G16 }
	Accelerometer full scale range (REG_ACC_RANGE bits[1:0], register value = enum) More...
enum class	m5::unit::sh200q::GyroRange : uint8_t {   DPS2000 , DPS1000 , DPS500 , DPS250 ,   DPS125 }
	Gyroscope full scale range (REG_GYRO_RANGE bits[2:0], register value = enum) More...
enum class	m5::unit::sh200q::AccelOdr : uint8_t { HZ1024 , HZ512 , HZ256 , HZ128 }
	Accelerometer output data rate (REG_ACC_CONFIG bits[4:3], normal mode) More...
enum class	m5::unit::sh200q::GyroOdr : uint8_t { HZ1000 , HZ500 , HZ250 }
	Gyroscope output data rate (REG_GYRO_CONFIG bits[3:1]) More...
enum class	m5::unit::sh200q::GyroDlpf : uint8_t {   BW250 , BW200 , BW100 , BW50 ,   BW25 }
	Gyro digital low pass filter (REG_GYRO_DLPF). Bandwidths quoted at the default 500 Hz ODR; they scale with the selected ODR. More...

Functions
constexpr float	m5::unit::sh200q::accel_res (const AccelRange r)
	G per LSB for each AccelRange.
constexpr float	m5::unit::sh200q::gyro_res (const GyroRange r)
	dps per LSB for each GyroRange
constexpr uint32_t	m5::unit::sh200q::gyro_odr_hz (const GyroOdr r)
	Gyroscope ODR in Hz (used to derive the periodic measurement interval)

Detailed Description

SH200Q setting enums and measurement data (framework independent)

Enumeration Type Documentation

AccelOdr

enum class m5::unit::sh200q::AccelOdr : uint8_t

strong

Accelerometer output data rate (REG_ACC_CONFIG bits[4:3], normal mode)

Enumerator
HZ1024	1024 Hz
HZ512	512 Hz
HZ256	256 Hz
HZ128	128 Hz

AccelRange

enum class m5::unit::sh200q::AccelRange : uint8_t

strong

Accelerometer full scale range (REG_ACC_RANGE bits[1:0], register value = enum)

Note

The SH200Q has no +-2G range

Enumerator
G4	+-4G (8192 LSB/G)
G8	+-8G (4096 LSB/G)
G16	+-16G (2048 LSB/G)

GyroDlpf

enum class m5::unit::sh200q::GyroDlpf : uint8_t

strong

Gyro digital low pass filter (REG_GYRO_DLPF). Bandwidths quoted at the default 500 Hz ODR; they scale with the selected ODR.

Enumerator
BW250	250Hz @500Hz ODR
BW200	200Hz
BW100	100Hz
BW50	50Hz
BW25	25Hz

GyroOdr

enum class m5::unit::sh200q::GyroOdr : uint8_t

strong

Gyroscope output data rate (REG_GYRO_CONFIG bits[3:1])

Note

The chip also offers 31.25 Hz and 8/16/32 kHz modes; they are not modeled here (the DLPF table differs for the high-speed modes)

Enumerator
HZ1000	1000 Hz
HZ500	500 Hz
HZ250	250 Hz

GyroRange

enum class m5::unit::sh200q::GyroRange : uint8_t

strong

Gyroscope full scale range (REG_GYRO_RANGE bits[2:0], register value = enum)

Warning

Ordered widest first (the register encoding), the REVERSE of the original M5StickC library's Gscale enum

Enumerator
DPS2000	+-2000 dps (16.4 LSB/dps)
DPS1000	+-1000 dps (32.8 LSB/dps)
DPS500	+-500 dps (65.5 LSB/dps)
DPS250	+-250 dps (131 LSB/dps)
DPS125	+-125 dps (262 LSB/dps)