StmI2c.h File Reference

STM32 I2C Bus+Device wrapper — wraps STM32 HAL I2C via CubeMX handle. More...

#include "BaseI2c.h"
#include "PlatformMutex.h"
#include "StmTypes.h"
#include <vector>
#include <memory>

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Classes
class	StmI2cDevice
	STM32 I2C device — inherits BaseI2c, delegates I/O to parent bus HAL handle. More...
class	StmI2cBus
	STM32 I2C bus — manages the HAL handle and device collection. More...

Detailed Description

STM32 I2C Bus+Device wrapper — wraps STM32 HAL I2C via CubeMX handle.

Bus/Device architecture matching the ESP32 pattern:

• StmI2cBus: wraps one I2C_HandleTypeDef*, manages device collection
• StmI2cDevice: inherits BaseI2c, delegates to parent bus HAL handle

Usage

extern I2C_HandleTypeDef hi2c1;
 
hf_i2c_bus_config_t bus_cfg(&hi2c1);
StmI2cBus i2cBus(bus_cfg);
i2cBus.Initialize();
 
hf_i2c_device_config_t dev_cfg;
dev_cfg.device_address = 0x68;  // MPU6050
int idx = i2cBus.CreateDevice(dev_cfg);
BaseI2c* mpu = i2cBus.GetDevice(idx);
mpu->Initialize();
 
uint8_t who_am_i = 0;
mpu->ReadRegister(0x75, who_am_i);

Author

HardFOC

Date

2025

Copyright

HardFOC — Licensed under GPL v3.0 or later.