icm_plat_t Struct Reference

#include <ICM20948_platform.h>

Public Attributes
int(*	read )(uint8_t reg, uint8_t *buf, size_t len, void *user)
int(*	write )(uint8_t reg, const uint8_t *buf, size_t len, void *user)
uint8_t(*	spi_reg_rw_bits )(uint8_t reg, int is_write)
void(*	delay_ms )(uint32_t ms)
void *	user
void(*	spi_cs )(int level, void *user)
uint8_t	i2c_addr

Detailed Description

7Semi comment style

• Platform glue for bus IO, delays, and timing
• Implement these for your system (I2C or SPI)

Definition at line 13 of file ICM20948_platform.h.

Member Data Documentation

delay_ms

void(* icm_plat_t::delay_ms) (uint32_t ms)

• Millisecond delay

Definition at line 32 of file ICM20948_platform.h.

i2c_addr

uint8_t icm_plat_t::i2c_addr

• Device address (I2C) or ignored for SPI if you wrap inside user

Definition at line 45 of file ICM20948_platform.h.

read

int(* icm_plat_t::read) (uint8_t reg, uint8_t *buf, size_t len, void *user)

• Bus read: read len bytes from reg into buf
• Return 0 on success, nonzero on error

Definition at line 18 of file ICM20948_platform.h.

spi_cs

void(* icm_plat_t::spi_cs) (int level, void *user)

• If using SPI: set chip select active (1) or inactive (0)
• For I2C: leave as NULL

Definition at line 41 of file ICM20948_platform.h.

spi_reg_rw_bits

uint8_t(* icm_plat_t::spi_reg_rw_bits) (uint8_t reg, int is_write)

• Optional: SPI transfers may need register R/W bit mangling
• For I2C, leave as NULL

Definition at line 28 of file ICM20948_platform.h.

user

void* icm_plat_t::user

• User context pointer passed to read/write

Definition at line 36 of file ICM20948_platform.h.

write

int(* icm_plat_t::write) (uint8_t reg, const uint8_t *buf, size_t len, void *user)

• Bus write: write len bytes from buf to reg
• Return 0 on success, nonzero on error

Definition at line 23 of file ICM20948_platform.h.

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The documentation for this struct was generated from the following file:

• src/ICM20948_platform.h