33 lines
1.3 KiB
C
33 lines
1.3 KiB
C
/*
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* Copyright (c) 2006-2023, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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*2023-03-28 Zxy first version
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*/
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#ifndef __DRV_HW_I2C_H__
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#define __DRV_HW_I2C_H__
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#include <rtthread.h>
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#include <rtdevice.h>
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#include "sdkconfig.h"
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#define WRITE_BIT I2C_MASTER_WRITE /*!< I2C master write */
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#define READ_BIT I2C_MASTER_READ /*!< I2C master read */
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#define ACK_CHECK_EN 0x1 /*!< I2C master will check ack from slave*/
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#define ACK_CHECK_DIS 0x0 /*!< I2C master will not check ack from slave */
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#define ACK_VAL 0x0 /*!< I2C ack value */
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#define NACK_VAL 0x1 /*!< I2C nack value */
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#define _I2C_NUMBER(num) I2C_NUM_##num
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#define I2C_NUMBER(num) _I2C_NUMBER(num)
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#define I2C_MASTER_NUM I2C_NUMBER(0) /*!< I2C port number for master dev */
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#define I2C_MASTER_SCL_IO CONFIG_I2C_MASTER_SCL /*!< gpio number for I2C master clock */
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#define I2C_MASTER_SDA_IO CONFIG_I2C_MASTER_SDA /*!< gpio number for I2C master data */
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#define CONFIG_I2C_MASTER_SCL 6
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#define CONFIG_I2C_MASTER_SDA 5
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int rt_hw_i2c_init(void);
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#endif /* __DRV_HW_I2C_H__ */
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