61 lines
2.2 KiB
C
61 lines
2.2 KiB
C
/*!
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\file i2c.h
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\brief the header file of I2C
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\version 2025-01-24, V1.4.0, firmware for GD32H7xx
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*/
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/*
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Copyright (c) 2025, GigaDevice Semiconductor Inc.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice, this
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list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright notice,
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this list of conditions and the following disclaimer in the documentation
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and/or other materials provided with the distribution.
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3. Neither the name of the copyright holder nor the names of its contributors
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may be used to endorse or promote products derived from this software without
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specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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OF SUCH DAMAGE.
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*/
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#ifndef I2C_H
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#define I2C_H
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#define I2C_SPEED 400000
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#define I2C_PAGE_SIZE 8
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#define I2CX I2C1
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#define RCU_GPIO_I2C RCU_GPIOF
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#define RCU_I2C RCU_I2C1
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#define I2C_SCL_PORT GPIOF
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#define I2C_SDA_PORT GPIOF
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#define I2C_SCL_PIN GPIO_PIN_1
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#define I2C_SDA_PIN GPIO_PIN_0
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#define I2C_GPIO_AF GPIO_AF_4
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/* function declarations */
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/* configure the GPIO ports */
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void gpio_config(void);
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/* configure the I2C interface */
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void i2c_config(void);
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/* reset I2C gpio configure */
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void i2c_gpio_reset(void);
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/* reset i2c bus */
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void i2c_bus_reset(void);
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#endif /* I2C_H */
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