51 lines
1.2 KiB
C
51 lines
1.2 KiB
C
///Copyright (c) 2022, 四川汇源光通信有限公司
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///All rights reserved.
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///@file drv_i2c.h
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///@brief drv_i2c驱动程序
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///
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///@details
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///@note
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///@author dufresne
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///@date 2025/09/24
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///
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///@version v1.0 2025/09/24 初始版本
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#ifndef DRV_I2C_H
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#define DRV_I2C_H
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#include "gd32f4xx.h"
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#include "delay.h"
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// #define SOFTWARE_I2C
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#define HARDWARE_I2C
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#define I2C_SCL_PIN GPIO_PIN_6
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#define I2C_SDA_PIN GPIO_PIN_7
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#define TMP75_ADDRESS 0x48 //1001000
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#define TEMP_REGISTER_ADDRESS 0x00 //tmp75寄存器温度数据地址
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#ifdef HARDWARE_I2C
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#define I2C_PERIPH I2C0
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#define I2C_SPEED 100000
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#endif
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#define I2C_SCL_HIGH gpio_bit_set(GPIOB, I2C_SCL_PIN)
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#define I2C_SCL_LOW gpio_bit_reset(GPIOB, I2C_SCL_PIN)
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#define I2C_SDA_HIGH gpio_bit_set(GPIOB, I2C_SDA_PIN)
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#define I2C_SDA_LOW gpio_bit_reset(GPIOB, I2C_SDA_PIN)
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#define I2C_SDA_GET gpio_input_bit_get(GPIOB, I2C_SDA_PIN)
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void i2c_init(void);
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void i2c_gpio_config(void);
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#ifdef HARDWARE_I2C
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void i2c_config(void);
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void i2c_write(uint8_t *buff, int len, uint8_t device_address);
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void i2c_read(uint8_t *buff, uint16_t len, uint8_t device_address);
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#endif
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#endif |