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atk-paj7620手势传感器驱动

时间：2022-12-22 12:00:00 5e0100200112传感器接近传感器idup6传感器opb620传感器1212s2to接近传感器opb615传感器

ATK-PAJ7620是高性能手势识别传感器模块。该模块采用原始技术（Pixart）公司的 PAJ7620U2
光学数组传感器集成在芯片中，以输出复杂的手势和光标模式，并有九种手势
识别，支持上、下、左、右、前、后、顺时针旋转、逆时针旋转和挥动手势识别
支持物体接近检测等功能

在这里插入图片描述
代码示例

///手势传感器读取函数 //参数 手势结果 /* #define GES_UP BIT(0) //向上 #define GES_DOWM BIT(1) //向下 #define GES_LEFT BIT(2) //向左 #define GES_RIGHT BIT(3) //向右 #define GES_FORWARD BIT(4) //向前 #define GES_BACKWARD BIT(5) //向后 #define GES_CLOCKWISE BIT(6) //顺时针 #define GES_COUNT_CLOCKWISE BIT(7) //逆时针 #define GES_WAVE BIT(8) //挥动 */ //返回 0 //定义硬件接口 int pja7620(unsigned char *ges) { 
         static char state = 0;  unsigned char tmp = 0;   if(state == 0)  { 
           tmp = paj7620u2_init();    if(tmp)     state = 1;  }    Gesture_test(ges);    return 0; }

用法，用到i2c，和oled共用一个

unsigned char ges; pja7620(&ges);

paj7620u2.c

#include "paj7620u2.h" #include "paj7620u2_cfg.h" #include "delay.h" #include "i2c.h"  #define u8 unsigned char #define u16 unsigned short   u8 GS_Write_Byte(u8 REG_Address,u8 REG_data)
{ 
       
		i2c_1_write(0x73, 1, REG_Address, &REG_data, 1);
}

u8 GS_Read_Byte(u8 REG_Address)
{ 
       
		unsigned char tmp = 0;
		i2c_1_read(0x73, 1, REG_Address, &tmp, 1);
	
		return tmp;
}

u8 GS_Read_nByte(u8 REG_Address,u16 len,u8 *buf)
{ 
       
		unsigned char tmp = 0,ret = 0;
	
		ret  = i2c_1_read(0x73, 1, REG_Address, buf, len);
		if(ret) return 0;
		else return 1;
}

void GS_i2c_init(void)
{ 
       
	i2c_Init(I2C1,U32BIT( GPIO_12),U32BIT( GPIO_13));
}


//PAJ7620唤醒
void GS_WakeUp(void)
{ 
       
	i2c_1_write(0x73, 0, 0, 0, 0);
}

//选择PAJ7620U2 BANK区域
void paj7620u2_selectBank(bank_e bank)
{ 
       
	switch(bank)
	{ 
       
		case BANK0: GS_Write_Byte(PAJ_REGITER_BANK_SEL,PAJ_BANK0);break;//BANK0寄存器区域
		case BANK1: GS_Write_Byte(PAJ_REGITER_BANK_SEL,PAJ_BANK1);break;//BANK1寄存器区域
	}
			
}

//PAJ7620U2唤醒
u8 paj7620u2_wakeup(void)
{ 
        
	u8 data=0x0a;
	GS_WakeUp();//唤醒PAJ7620U2
	delay_ms(5);//唤醒时间>400us
	GS_WakeUp();//唤醒PAJ7620U2
	delay_ms(5);//唤醒时间>400us
	paj7620u2_selectBank(BANK0);//进入BANK0寄存器区域
	data = GS_Read_Byte(0x00);//读取状态
	if(data!=0x20) return 0; //唤醒失败
	
	return 1;
}

//PAJ7620U2初始化
//返回值：0:失败 1:成功
u8 paj7620u2_init(void)
{ 
       
	u8 i;
	u8 status;
	
	GS_i2c_init();//IIC初始化
    status = paj7620u2_wakeup();//唤醒PAJ7620U2
	if(!status) return 0;
	paj7620u2_selectBank(BANK0);//进入BANK0寄存器区域
	for(i=0;i<INIT_SIZE;i++)
	{ 
       
		GS_Write_Byte(init_Array[i][0],init_Array[i][1]);//初始化PAJ7620U2
	}
    paj7620u2_selectBank(BANK0);//切换回BANK0寄存器区域
	
	return 1;
}



//手势识别测试
u8 Gesture_test(u8 *ges)
{ 
       
	u8 i;
    u8 status;
	u8 data[2]={ 
       0x00};
	u16 gesture_data;
	static u8 state = 0;
	
	if(state == 0)
	{ 
       
		paj7620u2_selectBank(BANK0);//进入BANK0寄存器区域
		for(i=0;i<GESTURE_SIZE;i++)
		{ 
       
			GS_Write_Byte(gesture_arry[i][0],gesture_arry[i][1]);//手势识别模式初始化
		}
		paj7620u2_selectBank(BANK0);//切换回BANK0寄存器区域
		state = 1;
	}
	else
	{ 
       
			status = GS_Read_nByte(PAJ_GET_INT_FLAG1,2,&data[0]);//读取手势状态 
			if(!status)
			{ 
          
				gesture_data =(u16)data[1]<<8 | data[0];
				if(gesture_data) 
					*ges = gesture_data;
			}
	}
	return 0;
}

//接近检测测试
u8 Ps_test(u8 *brightness, u16 *size)
{ 
       
    u8 i;
	u8 data[2]={ 
       0x00};
	u8 obj_brightness=0;
	u16 obj_size=0;
	static u8 state = 0;
	
	if(state == 0)
	{ 
       
		paj7620u2_selectBank(BANK0);//进入BANK0寄存器区域
		for(i=0;i<PROXIM_SIZE;i++)
		{ 
       
			GS_Write_Byte(proximity_arry[i][0],proximity_arry[i][1]);//接近检测模式初始化
		}
		paj7620u2_selectBank(BANK0);//返回BANK0寄存器区域
	}
	else
	{ 
       	
		obj_brightness = GS_Read_Byte(PAJ_GET_OBJECT_BRIGHTNESS);//读取物体亮度
		data[0] = GS_Read_Byte(PAJ_GET_OBJECT_SIZE_1);//读取物体大小
		data[1] = GS_Read_Byte(PAJ_GET_OBJECT_SIZE_2);
		obj_size = ((u16)data[1] & 0x0f)<<8 | data[0];
	}
	
	return 0;
}

paj7620u2.h

#ifndef __PAJ7620U2_H
#define __PAJ7620U2_H

///#include "paj7620u2_iic.h"
#define u8 unsigned char
#define u16 unsigned short

//BANK寄存器枚举
typedef enum{ 
       
	BANK0 = 0, //BANK0寄存器
	BANK1,     //BANK1寄存器
}bank_e;

#define PAJ7620_ID 0x73<<1 //设备地址
#define PAJ_REGITER_BANK_SEL 0XEF //BANK选择寄存器
#define PAJ_BANK0 0X00 //BANK0
#define PAJ_BANK1 0X01 //BANK1

//BANK0 寄存器组
#define PAJ_SUSPEND_CMD 0X03 //设置设备挂起
#define PAJ_SET_INT_FLAG1 0X41 //设置手势检测中断寄存器1
#define PAJ_SET_INT_FLAG2 0X42 //设置手势检测中断寄存器2
#define PAJ_GET_INT_FLAG1 0X43 //获取手势检测中断标志寄存器1(获取手势结果)
#define PAJ_GET_INT_FLAG2 0X44 //获取手势检测中断标志寄存器2(获取手势结果)
#define PAJ_GET_STATE 0X45 //获取手势检测工作状态
#define PAJ_SET_HIGH_THRESHOLD 0x69 //设置滞后高阀值（仅在接近检测模式下）
#define PAJ_SET_LOW_THRESEHOLD 0X6A //设置滞后低阀值
#define PAJ_GET_APPROACH_STATE 0X6B //获取接近状态 （1：PS data>= PS threshold ,0:PS data<= Low threshold）
#define PAJ_GET_GESTURE_DATA 0X6C //获取接近数据
#define PAJ_GET_OBJECT_BRIGHTNESS 0XB0 //获取被照物体亮度（最大255）
#define PAJ_GET_OBJECT_SIZE_1 0XB1 //获取被照物体大小低八位（bit7:0）(最大900)
#define PAJ_GET_OBJECT_SIZE_2 0XB2 //获取被照物体大小高四位（bit3:0）

//BANK1 寄存器组
#define PAJ_SET_PS_GAIN 0X44 //设置检测增益大小 (0:1x gain 1:2x gain)
#define PAJ_SET_IDLE_S1_STEP_0 0x67 //设置S1的响应因子
#define PAJ_SET_IDLE_S1_STEP_1 0x68 
#define PAJ_SET_IDLE_S2_STEP_0 0X69 //设置S2的响应因子
#define PAJ_SET_IDLE_S2_STEP_1 0X6A 
#define PAJ_SET_OP_TO_S1_STEP_0 0X6B //设置OP到S1的过度时间
#define PAJ_SET_OP_TO_S1_STEP_1 0X6C
#define PAJ_SET_S1_TO_S2_STEP_0 0X6D //设置S1到S2的过度时间
#define PAJ_SET_S1_TO_S2_STEP_1 0X6E
#define PAJ_OPERATION_ENABLE 0X72 //设置PAJ7620U2使能寄存器

//手势识别效果
#define BIT(x) 1<<(x)

#define GES_UP BIT(0) //向上
#define GES_DOWM BIT(1) //向下
#define GES_LEFT BIT(2) //向左
#define GES_RIGHT BIT(3) //向右
#define GES_FORWARD BIT(4) //向前
#define GES_BACKWARD BIT(5) //向后
#define GES_CLOCKWISE BIT(6) //顺时针
#define GES_COUNT_CLOCKWISE BIT(7) //逆时针
#define GES_WAVE BIT(8) //挥动

u8 paj7620u2_init(void);
u8 Gesture_test(u8 *ges);
u8 Ps_test(u8 *brightness, u16 *size);

#endif

paj7620u2_cfg.h

#ifndef __PAJ7620U2_CFG_H
#define __PAJ7620U2_CFG_H


#define INIT_SIZE sizeof(init_Array)/2
//上电初始化数组
const unsigned char init_Array[][2] = { 
       

    { 
       0xEF,0x00},
	{ 
       0x37,0x07},
    { 
       0x38,0x17},
	{ 
       0x39,0x06},
	{ 
       0x41,0x00},
	{ 
       0x42,0x00},
	{ 
       0x46,0x2D},
	{ 
       0x47,0x0F},
	{ 
       0x48,0x3C},
	{ 
       0x49,0x00},
	{ 
       0x4A,0x1E},
	{ 
       0x4C,0x20},
	{ 
       0x51,0x10},
	{ 
       0x5E,0x10},
	{ 
       0x60,0x27},
	{ 
       0x80,0x42},
	{ 
       0x81,0x44},
	{ 
       0x82,0x04},
	{ 
       0x8B,0x01},
	{ 
       0x90,0x06},
	{ 
       0x95,0x0A},
	{ 
       0x96,0x0C},
	{ 
       0x97,0x05},
	{ 
       0x9A,0x14},
	{ 
       0x9C,0x3F},
	{ 
       0xA5,0x19},
	{ 
       0xCC,0x19},
	{ 
       0xCD,0x0B},
	{ 
       0xCE,0x13},
	{ 
       0xCF,0x64},
	{ 
       0xD0,0x21},
	{ 
       0xEF,0x01},
	{ 
       0x02,0x0F},
	{ 
       0x03,0x10},
	{ 
       0x04,0x02},
	{ 
       0x25,0x01},
	{ 
       0x27,0x39},
	{ 
       0x28,0x7F},
	{ 
       0x29,0x08},
	{ 
       0x3E,0xFF},
	{ 
       0x5E,0x3D},
	{ 
       0x65,0x96},
	{ 
       0x67,0x97},
	{ 
       0x69,0xCD},
	{ 
       0x6A,0x01},
	{ 
       0x6D,0x2C},
	{ 
       0x6E,0x01},
	{ 
       0x72,0x01},
	{ 
       0x73,0x35},
	{ 
       0x74,0x00},
	{ 
       0x77,0x01},
};

#define PROXIM_SIZE sizeof(proximity_arry)/2
//接近检测初始化数组
const unsigned char proximity_arry[][2]={ 
       

	{ 
       0xEF,0x00},
	{ 
       0x41,0x00},
	{ 
       0x42,0x00},
	{ 
       0x48,0x3C},
	{ 
       0x49,0x00},
	{ 
       0x51,0x13},
	{ 
       0x83,0x20},
	{ 
       0x84,0x20},
	{ 
       0x85,0x00},
	{ 
       0x86,0x10},
	{ 
       0x87,0x00},
	{ 
       0x88,0x05},
	{ 
       0x89,0x18},
	{ 
       0x8A,0x10},
	{ 
       0x9f,0xf8},
	{ 
       0x69,0x96},
	{ 
       0x6A,0x02},
	{ 
       0xEF,0x01},
	{ 
       0x01,0x1E},
	{ 
       0x02,0x0F},
	{ 
       0x03,0x10},
	{ 
       0x04,0x02},
	{ 
       0x41,0x50},
	{ 
       0x43,0x34},
	{ 
       0x65,0xCE},
	{ 
        

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