70 lines
2.6 KiB
C
70 lines
2.6 KiB
C
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/*----------------------------------------------------------------------------/
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/ MPU9250 IIC include file
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/----------------------------------------------------------------------------*/
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#ifndef _DEF_MPU9250_IIC_H_
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#define _DEF_MPU9250_IIC_H_
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/*---------------------------------------------------------------------------*/
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#include <stdint.h>
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/* System Configurations */
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int MPU9250_I2CConfig(void);
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/**----------------------------------------------------------------------
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* Function : i2c_start
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* Description : 产生IIC起始信号
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* Author : zhanli&719901725@qq.com
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* Date : 2021/10/26 zhanli
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*---------------------------------------------------------------------**/
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void i2c_start(void);
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/**----------------------------------------------------------------------
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* Function : i2c_stop
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* Description : 产生IIC停止信号
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* Author : zhanli&719901725@qq.com
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* Date : 2021/10/26 zhanli
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*---------------------------------------------------------------------**/
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void i2c_stop(void);
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/**----------------------------------------------------------------------
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* Function : i2c_ack
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* Description : 产生ACK应答
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* Author : zhanli&719901725@qq.com
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* Date : 2021/10/26 zhanli
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*---------------------------------------------------------------------**/
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void i2c_ack(void);
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/**----------------------------------------------------------------------
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* Function : i2c_send_byte
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* Description : IIC发送一个字节
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* Author : zhanli&719901725@qq.com
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* Date : 2021/10/26 zhanli
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*---------------------------------------------------------------------**/
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void i2c_send_byte(unsigned char txd);
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unsigned char i2c_read_byte(unsigned char ack);
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unsigned char i2c_wait_ack();
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// 往I2C设备写一个字节
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void MPU9250_WriteReg(unsigned char slave_addr,unsigned char reg_addr,unsigned char reg_data);
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/**----------------------------------------------------------------------
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* Function : i2c_read_one_byte
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* Description : i2c读一个字节
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* Author : zhanli&719901725@qq.com
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* Date : 2021/10/26 zhanli
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*---------------------------------------------------------------------**/
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unsigned char MPU9250_ReadReg(unsigned char slave_addr,unsigned char reg_addr);
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/**----------------------------------------------------------------------
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* Function : i2c_read_one_byte
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* Description : i2c读多个字节
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* Author : zhanli&719901725@qq.com
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* Date : 2021/10/26 zhanli
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*---------------------------------------------------------------------**/
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void MPU9250_ReadRegs(uint8_t slave_addr,uint8_t reg_addr,
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uint8_t *data, uint8_t len);
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#endif /* MPU9250 */
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