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- /*!
- \file i2c.h
- \brief the header file of I2C
- \version 2022-05-30, V1.0.0, firmware for GD32F30x
- */
- /*
- Copyright (c) 2022, GigaDevice Semiconductor Inc.
- Redistribution and use in source and binary forms, with or without modification,
- are permitted provided that the following conditions are met:
- 1. Redistributions of source code must retain the above copyright notice, this
- list of conditions and the following disclaimer.
- 2. Redistributions in binary form must reproduce the above copyright notice,
- this list of conditions and the following disclaimer in the documentation
- and/or other materials provided with the distribution.
- 3. Neither the name of the copyright holder nor the names of its contributors
- may be used to endorse or promote products derived from this software without
- specific prior written permission.
- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
- WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
- IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
- INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
- OF SUCH DAMAGE.
- */
- #ifndef I2C_H
- #define I2C_H
- #include "gd32f30x.h"
- #define I2C_SPEED 100000
- #define I2CX_SLAVE_ADDRESS7 0xA0
- #define I2C_PAGE_SIZE 8
- #define I2CX I2C0
- #define RCU_GPIO_I2C RCU_GPIOB
- #define RCU_I2C RCU_I2C0
- #define I2C_SCL_PORT GPIOB
- #define I2C_SDA_PORT GPIOB
- #define I2C_SCL_PIN GPIO_PIN_6
- #define I2C_SDA_PIN GPIO_PIN_7
- /* configure the GPIO ports */
- void gpio_config(void);
- /* configure the I2C interfaces */
- void i2c_config(void);
- /* reset i2c bus */
- void i2c_bus_reset(void);
- #endif /* I2C_H */
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