116 lines
3.1 KiB
C
116 lines
3.1 KiB
C
#ifndef GD32E23X_HW_I2C_H
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#define GD32E23X_HW_I2C_H
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// #define I2C1_ENABLE
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#define I2C0_BUS_RCU RCU_I2C0
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#define I2C0_GPIO_RCU RCU_GPIOF
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#define I2C0_GPIO_PORT GPIOF
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#define I2C0_GPIO_SDA_PIN GPIO_PIN_0
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#define I2C0_GPIO_SCL_PIN GPIO_PIN_1
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#define I2C0_GPIO_AF GPIO_AF_1
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#define I2C0_SPEED 400000U
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#define I2C0_DCTY I2C_DTCY_2
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#define I2C0_ADDR7 0xA0
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#ifdef I2C1_ENABLE
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#define I2C1_BUS_RCU RCU_I2C1
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#define I2C1_GPIO_RCU RCU_GPIOA
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#define I2C1_GPIO_PORT GPIOA
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#define I2C1_GPIO_SDA_PIN GPIO_PIN_1
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#define I2C1_GPIO_SCL_PIN GPIO_PIN_0
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#define I2C1_GPIO_AF GPIO_AF_4
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#define I2C1_SPEED 400000U
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#define I2C1_DCTY I2C_DTCY_2
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#define I2C1_ADDR7 0xA1
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#endif
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#define I2C_TIME_OUT (uint16_t)(5000)
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#define I2C_OK 1
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#define I2C_FAIL 0
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#define I2C_END 1
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typedef enum {
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I2C_START = 0,
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I2C_SEND_ADDR,
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I2C_CLEAR_ADDRESS_FLAG,
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I2C_TRANSMIT_DATA,
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I2C_STOP
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} i2c_process_enum;
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typedef struct
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{
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uint32_t i2c_gpio_rcu;
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uint32_t i2c_gpio_port;
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uint32_t i2c_gpio_sda_pin;
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uint32_t i2c_gpio_scl_pin;
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uint32_t i2c_gpio_af;
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uint32_t i2c_speed;
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uint32_t i2c_dcty;
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uint32_t i2c_addr7;
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}i2c_parameter_struct;
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/**
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* \brief Return codes for IIC APIs.
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* @{
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*/
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#define IIC_SUCCESS 0
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#define IIC_INVALID_ARGUMENT 1
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#define IIC_ARBITRATION_LOST 2
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#define IIC_NO_CHIP_FOUND 3
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#define IIC_RECEIVE_OVERRUN 4
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#define IIC_RECEIVE_NACK 5
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#define IIC_SEND_OVERRUN 6
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#define IIC_SEND_NACK 7
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#define IIC_BUSY 8
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#define IIC_ERROR_TIMEOUT 9
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/**
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* @}
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*/
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void i2c_master_initialize1(void);
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void i2c_master_initialize3(void);
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void i2c_master_init(void);
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void i2c_master_deinit1(void);
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void i2c_master_deinit3(void);
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uint8_t i2c_master_read_register1(unsigned char Address, unsigned char RegisterAddr, unsigned short RegisterLen, unsigned char *RegisterValue);
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uint8_t i2c_master_read_register3(unsigned char Address, unsigned char RegisterAddr, unsigned short RegisterLen, unsigned char *RegisterValue);
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uint8_t i2c_master_read_register1_raw(unsigned char Address, unsigned short len, unsigned char *data);
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uint8_t i2c_master_read_register3_raw(unsigned char Address, unsigned short len, unsigned char *data);
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uint8_t i2c_master_write_register1(unsigned char Address, unsigned char RegisterAddr, unsigned short RegisterLen, unsigned char *RegisterValue);
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uint8_t i2c_master_write_register3(unsigned char Address, unsigned char RegisterAddr, unsigned short RegisterLen, unsigned char *RegisterValue);
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uint8_t i2c_master_write_register1_raw(unsigned char Address, unsigned short len, unsigned char *data);
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uint8_t i2c_master_write_register3_raw(unsigned char Address, unsigned short len, unsigned char *data);
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void i2c0_master_init(void);
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int read_ir_mlx90614(void);
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void i2c_struct_para_init(i2c_parameter_struct* initpara);
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void i2c_init(uint32_t i2c_periph, i2c_parameter_struct* initpara);
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void i2c0_config(void);
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#endif /* GD32E23X_HW_I2C_H */ |