37 lines
818 B
C
37 lines
818 B
C
#ifndef __IIC_H__
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#define __IIC_H__
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#include "common.h"
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typedef enum
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{
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IIC_1 = 0,
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IIC_2 = 1,
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IIC_3 = 2,
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IIC_4 = 3,
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} IICN_enum;
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// IO口是绑定死的，这里只是列出来
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typedef enum
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{
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IIC1_SCL_P15 = 0x00, IIC1_SDA_P14,
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IIC2_SCL_P25 = 0x10, IIC2_SDA_P24,
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IIC3_SCL_P77 = 0x20, IIC3_SDA_P76,
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IIC4_SCL_P32 = 0x30, IIC4_SDA_P33,
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} IIC_PIN_enum;
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#define IIC_SEND_OK 0
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#define IIC_SEND_FAIL 1
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void iic_scan(void);
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void iic_init(IICN_enum iic_n, uint8 wait_time);
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uint8 iic_write_reg(uint8 dev_add, uint8 reg, uint8 dat);
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uint8 iic_write_reg_bytes(uint8 dev_add, uint8 reg, uint8 *dat, uint8 num);
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uint8 iic_read_reg(uint8 dev_add, uint8 reg, uint8 *dat);
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uint8 iic_read_reg_bytes(uint8 dev_add, uint8 reg, uint8 *dat, uint8 num);
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void iic_change_pin(IICN_enum iic_n);
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#endif
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