tuyaos-i2c

name	tuyaos/i2c
description	TuyaOS hardware I2C master via tkl_i2c. 硬件I2C、tkl_i2c、传感器总线、主模式读写。
when_to_use	Use for TuyaOS hardware I2C master transactions (sensor read/write).
id	tuyaos-i2c
surfaces	["embedded"]
tags	["i2c","tuyaos","tkl_i2c"]

TuyaOS I2C (tkl_i2c)

Demo: …/examples/driver_i2c/example_driver_i2c.c

Confirm first

• I2C port id, speed, slave address, 7-bit vs 10-bit as required by the device.

Pattern

#include "tkl_i2c.h"
#include "tal_log.h"

/* port / addr / pins — confirm per board */
#define I2C_NUM_ID   0
#define SLAVE_ADDR   0x44

void app_i2c_init(void)
{
    TUYA_IIC_BASE_CFG_T cfg = {0};
    /* fill cfg from demo / platform headers — role, speed, addr width */
    OPERATE_RET rt = tkl_i2c_init(I2C_NUM_ID, &cfg);
    if (rt != OPRT_OK) {
        TAL_PR_ERR("tkl_i2c_init failed %d", rt);
        return;
    }
}

void app_i2c_xfer_example(void)
{
    uint8_t tx[2] = {0x24, 0x00};
    uint8_t rx[3] = {0};
    tkl_i2c_master_send(I2C_NUM_ID, SLAVE_ADDR, tx, 2, TRUE);
    tkl_i2c_master_receive(I2C_NUM_ID, SLAVE_ADDR, rx, 3, TRUE);
}

API

Function	Role
tkl_i2c_init(port, &cfg)	open master
tkl_i2c_master_send	write
tkl_i2c_master_receive	read

Open the demo for the exact TUYA_IIC_BASE_CFG_T fields used on this SDK version. Some platforms ship tkl_i2c_weak.c stubs in the demo — real impl is in vendor.