STM32 I2C2 platform setup for single-board loopback tests. More...

#include <stddef.h>
#include "stm32_hal.h"
#include "capi_i2c.h"

Include dependency graph for i2c_platform_init.c:

Functions
int	i2c_platform_init (void)

void	i2c_platform_deinit (void)

void	i2c_platform_set_target_handle (struct capi_i2c_controller_handle *handle)

void	I2C2_EV_IRQHandler (void)

void	I2C2_ER_IRQHandler (void)

Detailed Description

STM32 I2C2 platform setup for single-board loopback tests.

CubeMX only generates MSP code for I2C1. This file configures I2C2 (clock source, GPIO, NVIC) so that the CAPI driver can initialise I2C2 as a target device. It also re-configures I2C1 pins with internal pull-ups required for the loopback wiring.

The I2C2 IRQ handlers dispatch through the CAPI isr function. The test must call i2c_platform_set_target_handle() after capi_i2c_init() so that the IRQ vectors can reach the correct controller handle.

Wiring: PB10 (I2C2_SCL) <-> PB6 (I2C1_SCL) PB11 (I2C2_SDA) <-> PB9 (I2C1_SDA)

Function Documentation

◆ I2C2_ER_IRQHandler()

void I2C2_ER_IRQHandler ( void )

◆ I2C2_EV_IRQHandler()

void I2C2_EV_IRQHandler ( void )

◆ i2c_platform_deinit()

void i2c_platform_deinit ( void )

◆ i2c_platform_init()

int i2c_platform_init ( void )

◆ i2c_platform_set_target_handle()

void i2c_platform_set_target_handle ( struct capi_i2c_controller_handle * handle )