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void I2C_Read_Reg2(I2C_TypeDef * I2Cx, uint8_t cmd, uint8_t Reg, uint8_t * Data, uint32_t data_len)
{
  //**********地址+读指令*********//
  I2C_Start(I2Cx);
  I2C_Send_Data(I2Cx, (uint8_t)I2Cx->ADDR);
  I2C_Send_Data(I2Cx, cmd);
  I2C_Stop(I2Cx);
  //**********寄存器地址+读数据*********//
  I2C_Start(I2Cx);
  I2C_Send_Data(I2Cx, Reg);
  I2C_Receive_Data(I2Cx, Data, data_len);
  I2C_Stop(I2Cx);
}

void I2C_Read_Reg2(I2C_TypeDef * I2Cx, uint8_t cmd, uint8_t Reg, uint8_t * Data, uint32_t data_len);

uint16_t TP_Read_XOY(uint8_t xy)
{
	uint8_t READ_TIMES = 15;//读取次数
	uint8_t LOST_VAL = 5;//丢弃值(去掉高低各10个数)
	uint16_t i, j,temp,buf[READ_TIMES];
	uint32_t sum=0;
	for(i=0;i<READ_TIMES;i++)
  {
		buf[i]=ns2009_read(xy);
	}
	for(i=0;i<READ_TIMES-1; i++){//排序
		for(j=i+1;j<READ_TIMES;j++){
			if(buf[i]>buf[j]){//升序排列
				temp=buf[i];
				buf[i]=buf[j];
				buf[j]=temp;
			}
		}
	}
	sum=0;
	for(i=LOST_VAL;i<READ_TIMES-LOST_VAL;i++){
		sum+=buf[i];
	}
	temp = sum/(READ_TIMES-2*LOST_VAL);
	return temp;
}

//********************增加ns2009读取*****************//
uint16_t ns2009_read(uint8_t _cmd)
{
  uint8_t buf[2];     //用于存储读取到的数值,
  uint16_t tp_adc;    //返回数值
  I2C_SetSlaveAddress(NS2009_I2C, NS2009_ADDR_WRITE);        //设置写地址NS2009_ADDR_WRITE=0X90
  I2C_Read_Reg2(NS2009_I2C,_cmd, NS2009_ADDR_READ, buf, 2);  //设置读地址NS2009_ADDR_READ=0X91
  tp_adc=((uint16_t)buf[0]<<8)+buf[1];
  tp_adc=(tp_adc>>4)&0xfff; 
  return tp_adc;
}

#ifndef _NS2009_H
#define _NS2009_H
#include "sys.h"
#include "delay.h"
#include "lcd.h"
//*********************************增加NS2009***************************//
#define NS2009_I2C I2C0
//增加NS2009定义
#define NS2009_ADDR_READ  0x91
#define NS2009_ADDR_WRITE 0x90
#define X_Adapt_Width    480//分辨率X
#define Y_Adapt_Heigth   270//分辨率Y

#define MAX_12BIT    0xfff
#define TOUCH_I2C_NAME            "i2c0"
#define NS2009_Device_ID        "ns2009"
#define NS2009_READ_X_LOW_POWER_12BIT      0xc0
#define NS2009_READ_Y_LOW_POWER_12BIT      0xd0
#define NS2009_READ_Z1_LOW_POWER_12BIT    0xe0
#define NS2009_READ_Z2_LOW_POWER_12BIT    0xf0
#define NS2009_DEF_X_FUZZ    32
#define NS2009_DEF_Y_FUZZ    16
#define NS2009_PEN_UP_Z1_ERR    70//触摸最小值
#define TP_THREAD_PRIORITY 25
#define TP_THREAD_STACK_SIZE 512
#define TP_THREAD_TIMESLICE 5
#define X_Origin         300
#define X_Width          (3870-300)
#define Y_Origin        380
#define Y_Heigth        (3900-380)
//*************************************NS2009增加完成****************//
// I2C读写命令
#define GT_CMD_ADDR 0x14
typedef struct
{
  uint16_t x;     /*!< 当前x坐标 */
  uint16_t y;     /*!< 当前y坐标 */
  uint8_t status; /*!< 触摸状态 */
  uint16_t sta;
} rtp_dev_t;

void NS2009_Init(void);
void NS2009_Read_XY(rtp_dev_t * rtp_devx);
uint16_t TP_Read_XOY(uint8_t xy);
uint16_t ns2009_read(uint8_t _cmd);
#endif

//**************电阻屏**********//
#include "ns2009.h"
extern rtp_dev_t rtp_dev;

static void touchpad_read(lv_indev_t *indev_drv, lv_indev_data_t *data)
{
    static lv_coord_t last_x = 0;
    static lv_coord_t last_y = 0;
    //******************电容屏读取***********//
    // GT911_Read_XY(&tp_dev);
    // if (tp_dev.status == 1)
    // {
    //     last_x = tp_dev.x;
    //     last_y = tp_dev.y;
    //     data->point.x = last_x;
    //     data->point.y = last_y;
    //     data->state = LV_INDEV_STATE_PR;
    // }
    //******************电阻屏读取***********//
    NS2009_Read_XY(&rtp_dev);
    if (rtp_dev.status == 1)
    {
        last_x = rtp_dev.x;
        last_y = rtp_dev.y;
        data->point.x = last_x;
        data->point.y = last_y;
        data->state = LV_INDEV_STATE_PR;
    }
    else
    {
        data->point.x = last_x;
        data->point.y = last_y;
        data->state = LV_INDEV_STATE_REL;
    }
}