75 lines
2.7 KiB
C
75 lines
2.7 KiB
C
/*********************************************************************
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File : i2c.h
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Purpose :
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**********************************************************************/
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#ifndef __I2C_H__
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#define __I2C_H__
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/****************************** Includes *****************************/
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#include "stm32h7xx.h"
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#include "./usart/bsp_debug_usart.h"
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/****************************** Defines *******************************/
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#define I2C_OWN_ADDRESS 0x00
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//毫秒级延时(需要定时器支持)，或者重写Delay宏
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#define Delay HAL_Delay
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#define I2Cx_FLAG_TIMEOUT ((uint32_t) 1000) //0x1100
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#define I2Cx_LONG_TIMEOUT ((uint32_t) (300 * I2Cx_FLAG_TIMEOUT)) //was300
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/*引脚定义*/
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#define SENSORS_I2C_SCL_GPIO_PORT GPIOB
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#define SENSORS_I2C_SCL_GPIO_CLK_ENABLE() __GPIOB_CLK_ENABLE()
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#define SENSORS_I2C_SCL_GPIO_PIN GPIO_PIN_8
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#define SENSORS_I2C_SDA_GPIO_PORT GPIOB
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#define SENSORS_I2C_SDA_GPIO_CLK_ENABLE() __GPIOB_CLK_ENABLE()
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#define SENSORS_I2C_SDA_GPIO_PIN GPIO_PIN_9
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#define SENSORS_I2C_AF GPIO_AF6_I2C4
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#define SENSORS_I2C I2C4
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#define SENSORS_I2C_RCC_CLK_ENABLE() __HAL_RCC_I2C4_CLK_ENABLE()
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#define SENSORS_I2C_FORCE_RESET() __HAL_RCC_I2C4_FORCE_RESET()
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#define SENSORS_I2C_RELEASE_RESET() __HAL_RCC_I2C4_RELEASE_RESET()
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/*信息输出*/
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#define I2C_DEBUG_ON 1
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#define I2C_DEBUG_FUNC_ON 0
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#define I2C_INFO(fmt,arg...) printf("<<-I2C-INFO->> "fmt"\n",##arg)
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#define I2C_ERROR(fmt,arg...) printf("<<-I2C-ERROR->> "fmt"\n",##arg)
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#define I2C_DEBUG(fmt,arg...) do{\
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if(I2C_DEBUG_ON)\
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printf("<<-I2C-DEBUG->> [%d]"fmt"\n",__LINE__, ##arg);\
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}while(0)
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#define I2C_DEBUG_FUNC() do{\
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if(I2C_DEBUG_FUNC_ON)\
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printf("<<-I2C-FUNC->> Func:%s@Line:%d\n",__func__,__LINE__);\
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}while(0)
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void I2cMaster_Init(void);
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unsigned short Get_I2C_Retry(void);
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int Sensors_I2C_ReadRegister(unsigned char slave_addr,
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unsigned char reg_addr,
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unsigned short len,
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unsigned char *data_ptr);
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int Sensors_I2C_WriteRegister(unsigned char slave_addr,
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unsigned char reg_addr,
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unsigned short len,
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unsigned char *data_ptr);
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#endif // __I2C_H__
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