ra8_i2c_cfg_t Struct Reference

Configuration descriptor for ra8_i2c_init. More...

#include <ra8_i2c.h>

Data Fields
uint32_t	bus_hz
	Target I2C clock rate in Hz.
uint32_t	pclkb_hz
	Current PCLKB frequency in Hz for bit-rate calc.

Detailed Description

Configuration descriptor for ra8_i2c_init.

The RIIC internal reference clock is IICphi = PCLKB / 2^CKS per HUM Ch 39.2.3 "ICMR1" p 2374, so the bit-rate divider needs the current PCLKB frequency. cppcheck cannot see tests/ so it flags every field as unused; both members are read in ra8_i2c_init.

Invariant

bus_hz is non-zero and pclkb_hz is non-zero.

Definition at line 97 of file ra8_i2c.h.

Field Documentation

bus_hz

uint32_t ra8_i2c_cfg_t::bus_hz

Target I2C clock rate in Hz.

Definition at line 98 of file ra8_i2c.h.

Referenced by ra8_i2c_init().

pclkb_hz

uint32_t ra8_i2c_cfg_t::pclkb_hz

Current PCLKB frequency in Hz for bit-rate calc.

Definition at line 99 of file ra8_i2c.h.

Referenced by ra8_i2c_init().

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

• libs/ra8_hal/inc/ra8_i2c.h