yincheng.zhong
2023-02-01 40bbf9d0543ea590085134160fb98aef8190eb59
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/*! ----------------------------------------------------------------------------
 *  @file    main.c
 *  @brief   Double-sided two-way ranging (DS TWR) initiator example code
 *
 *         
 *
 * @attention
 *
 * Copyright 2015 (c) Decawave Ltd, Dublin, Ireland.
 *
 * All rights reserved.
 *
 * @author Decawave
 */
 
#include <string.h>
#include <math.h>
#include "dw_app.h"
#include "deca_device_api.h"
#include "deca_regs.h"
#include "dw_driver.h"
#include "Spi.h"
#include "led.h"
#include "serial_at_cmd_app.h"
#include "Usart.h"
#include "global_param.h"
#include "filters.h"
#include <stdio.h>
#include "beep.h"
#include "modbus.h"
#include "CRC.h"
 
//#define USART_INTEGRATE_OUTPUT
/*------------------------------------ Marcos ------------------------------------------*/
/* Inter-ranging delay period, in milliseconds. */
#define RNG_DELAY_MS 100
 
/* Default antenna delay values for 64 MHz PRF. See NOTE 1 below. */
#define TX_ANT_DLY 0
#define RX_ANT_DLY 32899
 
/* UWB microsecond (uus) to device time unit (dtu, around 15.65 ps) conversion factor.
 * 1 uus = 512 / 499.2 µs and 1 µs = 499.2 * 128 dtu. */
#define UUS_TO_DWT_TIME 65536
 
/* Delay between frames, in UWB microseconds. See NOTE 4 below. */
/* This is the delay from the end of the frame transmission to the enable of the receiver, as programmed for the DW1000's wait for response feature. */
#define POLL_TX_TO_RESP_RX_DLY_UUS 150
/* This is the delay from Frame RX timestamp to TX reply timestamp used for calculating/setting the DW1000's delayed TX function. This includes the
 * frame length of approximately 2.66 ms with above configuration. */
#define RESP_RX_TO_FINAL_TX_DLY_UUS 410
 
/* Receive response timeout. See NOTE 5 below. */
#define RESP_RX_TIMEOUT_UUS 600
 
#define DELAY_BETWEEN_TWO_FRAME_UUS 400
 
#define POLL_RX_TO_RESP_TX_DLY_UUS 470
/* This is the delay from the end of the frame transmission to the enable of the receiver, as programmed for the DW1000's wait for response feature. */
#define RESP_TX_TO_FINAL_RX_DLY_UUS 200
/* Receive final timeout. See NOTE 5 below. */
#define FINAL_RX_TIMEOUT_UUS 4300
 
 
#define SPEED_OF_LIGHT 299702547
 
/* Indexes to access some of the fields in the frames defined above. */
#define FINAL_MSG_POLL_TX_TS_IDX 10
#define FINAL_MSG_RESP_RX_TS_IDX 14
#define FINAL_MSG_FINAL_TX_TS_IDX 18
#define FINAL_MSG_TS_LEN 4
 
 
enum enumtagstate
{
    DISCPOLL,
    GETNEARMSG,
    NEARPOLL,
}tag_state=NEARPOLL;
static dwt_config_t config = {
    5,               /* Channel number. */
    DWT_PRF_64M,     /* Pulse repetition frequency. */
    DWT_PLEN_128,    /* Preamble length. */
    DWT_PAC8,        /* Preamble acquisition chunk size. Used in RX only. */
    9,               /* TX preamble code. Used in TX only. */
    9,               /* RX preamble code. Used in RX only. */
    1,               /* Use non-standard SFD (Boolean) */
    DWT_BR_6M8,      /* Data rate. */
    DWT_PHRMODE_STD, /* PHY header mode. */
    (129 + 8 - 8)    /* SFD timeout (preamble length + 1 + SFD length - PAC size). Used in RX only. */
};
static uint8_t tx_poll_msg[20] = {0};
static uint8_t tx_sync_msg[14] = {0};
static uint8_t tx_final_msg[60] = {0};
static uint8_t tx_resp_msg[22] = {0};
 uint8_t tx_near_msg[80] = {0};
 
static uint32_t frame_seq_nb = 0;    
static uint32_t status_reg = 0;
static uint8_t rx_buffer[100];
static uint64_t poll_tx_ts;
static uint64_t resp_rx_ts;
static uint64_t final_tx_ts;
static uint64_t poll_rx_ts;
static uint64_t resp_tx_ts;
static uint64_t final_rx_ts;
static double tof;
int32_t anchor_dist_last_frm[TAG_NUM_IN_SYS],his_dist[TAG_NUM_IN_SYS];    ;    
uint32_t tag_id = 0;
uint32_t tag_id_recv = 0;
uint32_t anc_id_recv = 0;
uint8_t random_delay_tim = 0;
double distance, dist_no_bias, dist_cm;
uint32_t g_UWB_com_interval = 0; 
float dis_after_filter;                //µ±Ç°¾àÀëÖµ
LPFilter_Frac* p_Dis_Filter;        //²â¾àÓõĵÍͨÂ˲¨Æ÷
 
 
 
static uint64_t get_tx_timestamp_u64(void)
{
    uint8_t ts_tab[5];
    uint64_t ts = 0;
    int i;
    dwt_readtxtimestamp(ts_tab);
    for (i = 4; i >= 0; i--)
    {
        ts <<= 8;
        ts |= ts_tab[i];
    }
    return ts;
}
 
static uint64_t get_rx_timestamp_u64(void)
{
    uint8_t ts_tab[5];
    uint64_t ts = 0;
    int i;
    dwt_readrxtimestamp(ts_tab);
    for (i = 4; i >= 0; i--)
    {
        ts <<= 8;
        ts |= ts_tab[i];
    }
    return ts;
}
 
static void final_msg_set_ts(uint8_t *ts_field, uint64_t ts)
{
    int i;
    for (i = 0; i < FINAL_MSG_TS_LEN; i++)
    {
        ts_field[i] = (uint8_t) ts;
        ts >>= 8;
    }
}
 
static void final_msg_get_ts(const uint8_t *ts_field, uint32_t *ts)
{
    int i;
    *ts = 0;
    for (i = 0; i < FINAL_MSG_TS_LEN; i++)
    {
        *ts += ts_field[i] << (i * 8);
    }
}
 
void Dw1000_Init(void)
{
    /* Reset and initialise DW1000.
     * For initialisation, DW1000 clocks must be temporarily set to crystal speed. After initialisation SPI rate can be increased for optimum
     * performance. */
    Reset_DW1000();//ÖØÆôDW1000 /* Target specific drive of RSTn line into DW1000 low for a period. */
    Spi_ChangePrescaler(SPIx_PRESCALER_SLOW);    //ÉèÖÃΪ¿ìËÙģʽ
    dwt_initialise(DWT_LOADUCODE);//³õʼ»¯DW1000
    Spi_ChangePrescaler(SPIx_PRESCALER_FAST);    //ÉèÖÃΪ¿ìËÙģʽ
 
    /* Configure DW1000. See NOTE 6 below. */
    dwt_configure(&config);//ÅäÖÃDW1000
    
 
    
    /* Apply default antenna delay value. See NOTE 1 below. */
    dwt_setrxantennadelay(RX_ANT_DLY);        //ÉèÖýÓÊÕÌìÏßÑÓ³Ù
    dwt_settxantennadelay(TX_ANT_DLY);        //ÉèÖ÷¢ÉäÌìÏßÑÓ³Ù
 
    /* Set expected response's delay and timeout. See NOTE 4 and 5 below.
     * As this example only handles one incoming frame with always the same delay and timeout, those values can be set here once for all. */
                //ÉèÖýÓÊÕ³¬Ê±Ê±¼ä
}
void Dw1000_App_Init(void)
{
//g_com_map[DEV_ID] = 0x0b;
    //tag_state=DISCPOLL;
    tx_poll_msg[MESSAGE_TYPE_IDX]=POLL;
    tx_resp_msg[MESSAGE_TYPE_IDX]=RESPONSE;
    tx_final_msg[MESSAGE_TYPE_IDX]=FINAL;
    tx_sync_msg[MESSAGE_TYPE_IDX]=SYNC;
    
    memcpy(&tx_poll_msg[TAG_ID_IDX], &dev_id, 2);
    memcpy(&tx_final_msg[TAG_ID_IDX], &dev_id, 2);
    memcpy(&tx_resp_msg[ANCHOR_ID_IDX], &dev_id, 2);
    memcpy(&tx_sync_msg[ANCHOR_ID_IDX], &dev_id, 2);
    memcpy(&tx_near_msg[ANCHOR_ID_IDX], &dev_id, 2);
    memcpy(&tx_near_msg[TAG_ID_IDX], &dev_id, 2);
}    
uint16_t Checksum_u16(uint8_t* pdata, uint32_t len) 
{
    uint16_t sum = 0;
    uint32_t i;
    for(i=0; i<len; i++)
        sum += pdata[i];
    sum = ~sum;
    return sum;
}
 
u16 tag_time_recv[TAG_NUM_IN_SYS];
u8 usart_send[25];
u8 battary,button;
extern uint8_t g_pairstart;
void tag_sleep_configuraion(void)
{
    dwt_configuresleep(0x940, 0x7);
    dwt_entersleep();
}
extern uint8_t g_start_send_flag;
 
uint16_t g_Resttimer;
uint8_t result;
u8 tag_succ_times=0;
int32_t hex_dist;
u16 checksum;
int8_t tag_delaytime;
extern uint16_t sync_timer;
u16 tmp_time;
int32_t temp_dist;
u16 tagslotpos;
 
u16 anclist_num=0,anclist_pos; //list ×ÜÊýÁ¿ºÍµ±Ç°Î»ÖÃ
u16 ancid_list[TAG_NUM_IN_SYS];
u8 nearbase_num;
u16 mainbase_id;
int32_t mainbase_dist;
uint8_t trygetnearmsg_times;
u16 nearbaseid_list[MAX_NEARBASE_NUM],mainbase_id,true_nearbase_idlist[MAX_NEARBASE_NUM];
u8 FindNearBasePos(u16 baseid)
{
    u8 i;
    for(i=0;i<nearbase_num;i++)
    {
        if(baseid==nearbaseid_list[i])
            return i;
    }
}
u8 recbase_num=0;
#define CHANGE_BASE_THRESHOLD  5
uint8_t GetRandomValue(void)
{
    uint8_t random_value=0,temp_adc,i;
    for(i=0;i<8;i++)
    {
        temp_adc=Get_ADC_Value();
        random_value=random_value|((temp_adc&0x01)<<i);
    }
    return random_value;
}
u8 GetRandomSlotPos(uint32_t emptyslot)
{
    u8 i,temp_value;
    temp_value = HAL_LPTIM_ReadCounter(&hlptim1);//GetRandomValue();
    for(i=temp_value%32;i<max_slotpos;i++)
    {
        if(((emptyslot>>i)&0x1)==0)
        {
            return i;
        }
    }
    
        for(i=1;i<max_slotpos;i++)
    {
        if(((emptyslot>>i)&0x1)==0)
        {
            return i;
        }
    }
return max_slotpos-1;
}
 
int32_t mainbase_dist,nearbase_distlist[MAX_NEARBASE_NUM],true_nearbase_distlist[MAX_NEARBASE_NUM],true_exsistbase_list[MAX_NEARBASE_NUM],ancsync_time,nextpoll_delaytime,offsettimeus;
u8 anclost_times=0 , mainbase_lost_count=0;
u8 exsistbase_list[MAX_NEARBASE_NUM],report_num,get_newbase=0;
u8 flag_finalsend,flag_getresponse,flag_rxon;
uint16_t current_count,start_count,end_count,lastsync_timer;
 
u8 nearbase_num=0,last_nearbase_num,next_nearbase_num,last_slotnum, para_update,para_len,stationary_flag=0;
u32 rec_tagpos_binary;
int16_t offset=2700;
u8 motor_state,rec_remotepara_state,rec_remotepara[80];
extern u16 last_lpcount;
void NearPoll(void)
{
    
    uint32_t temp1,temp2,dw_systime;
    uint32_t frame_len;
    uint32_t final_tx_time;
    u32 start_poll;
    u8 i,j,getsync_flag=0,timeout,flag_ancreadpara=0;
    dwt_setrxaftertxdelay(POLL_TX_TO_RESP_RX_DLY_UUS);            //ÉèÖ÷¢ËÍºó¿ªÆô½ÓÊÕ£¬²¢É趨ÑÓ³Ùʱ¼ä
    dwt_setrxtimeout(10000);        
    tag_succ_times = 0;
        //GPIO_WriteBit(GPIOA, GPIO_Pin_10, Bit_SET);
    if(next_nearbase_num>=MAX_NEARBASE_NUM)
    {
        next_nearbase_num = MAX_NEARBASE_NUM-1;
    }
    HAL_GPIO_WritePin(LED0_GPIO, GPIO_PIN_9, GPIO_PIN_SET);
    last_nearbase_num=next_nearbase_num;
    nearbase_num=next_nearbase_num;
    recbase_num=0;
//    motor_state=0;
    tx_near_msg[GROUP_ID_IDX] = group_id;
    tx_near_msg[BATTARY_IDX] = bat_percent;
    tx_near_msg[BUTTON_IDX] = !GET_USERKEY|stationary_flag<<1;
    tx_near_msg[SEQUENCE_IDX] = frame_seq_nb++;
    tx_near_msg[NEARBASENUM_INDEX] = nearbase_num;
    memcpy(&tx_near_msg[NEARBASEID_INDEX],&nearbaseid_list,nearbase_num*2);
    tx_near_msg[MESSAGE_TYPE_IDX] = NEAR_POLL;    
    memcpy(&tx_near_msg[ANCHOR_ID_IDX],&mainbase_id,2);    
    dwt_writetxdata(13+2*nearbase_num, tx_near_msg, 0);//½«Poll°üÊý¾Ý´«¸øDW1000£¬½«ÔÚ¿ªÆô·¢ËÍʱ´«³öÈ¥
    dwt_writetxfctrl(13+2*nearbase_num, 0);//ÉèÖó¬¿í´ø·¢ËÍÊý¾Ý³¤¶È
    dwt_starttx(DWT_START_TX_IMMEDIATE | DWT_RESPONSE_EXPECTED);//¿ªÆô·¢ËÍ£¬·¢ËÍÍê³ÉºóµÈ´ýÒ»¶Îʱ¼ä¿ªÆô½ÓÊÕ£¬µÈ´ýʱ¼äÔÚdwt_setrxaftertxdelayÖÐÉèÖÃ
    
    tx_near_msg[TAGCONFIGSUCCESS_INDEX] =0;
    para_update = 0;
    flag_finalsend=0;
    flag_rxon=1;
    flag_getresponse=0;
    start_count=HAL_LPTIM_ReadCounter(&hlptim1);
    recbase_num=0;
    timeout=nearbase_num*SLOT_SCALE+4;
    end_count=start_count+(timeout<<5);
    if(end_count>=32768)
    {end_count-=32768;}
    mainbase_dist=100000;
    mainbase_lost_count++;
    current_count=HAL_LPTIM_ReadCounter(&hlptim1);
            while(current_count<end_count||current_count>end_count+15000)
            {
                current_count=HAL_LPTIM_ReadCounter(&hlptim1);
                    while (!((status_reg = dwt_read32bitreg(SYS_STATUS_ID)) & (SYS_STATUS_RXFCG | SYS_STATUS_ALL_RX_ERR)))//²»¶Ï²éѯоƬ״ֱ̬µ½³É¹¦½ÓÊÕ»òÕß·¢Éú´íÎó
                    {
                        if(flag_finalsend)
                        {
                            dw_systime=dwt_readsystimestamphi32();
                            if(dw_systime>temp1&&dw_systime<temp2)
                            {
                                
                                dwt_forcetrxoff();
                                flag_rxon=0;
                                if(flag_ancreadpara)
                                {
                                    u16 calCRC;
                                  tx_near_msg[MESSAGE_TYPE_IDX] = NEAR_PRAAREPLY;  
                                  memcpy(&tx_near_msg[MESSAGE_PARAREPLY_IDX],g_com_map,SENDANCPARA_LEN);
                                  calCRC = CRC_Compute((uint8_t*)g_com_map,SENDANCPARA_LEN);
                                  memcpy(&tx_near_msg[MESSAGE_PARAREPLY_IDX+SENDANCPARA_LEN],&calCRC,2);
                                  dwt_writetxdata(14+SENDANCPARA_LEN, tx_near_msg, 0);//½«·¢ËÍÊý¾ÝдÈëDW1000
                                  dwt_writetxfctrl(14+SENDANCPARA_LEN, 0);//É趨·¢ËÍÊý¾Ý³¤¶È
                                }
                                dwt_setdelayedtrxtime(final_tx_time);
                                result=dwt_starttx(DWT_START_TX_DELAYED);//É趨ΪÑÓ³Ù·¢ËÍ    
                                flag_finalsend=0;
                                break;
                            }
                        }
                            current_count=HAL_LPTIM_ReadCounter(&hlptim1);
                         if(current_count>=end_count&&current_count<end_count+15000)
                                break;
                    };
                    if(status_reg==0xffffffff)
                    {
                        NVIC_SystemReset();
                    }
                    if (status_reg & SYS_STATUS_RXFCG)//Èç¹û³É¹¦½ÓÊÕ
                        {
                            dwt_write32bitreg(SYS_STATUS_ID, SYS_STATUS_RXFCG | SYS_STATUS_TXFRS);//Çå³þ¼Ä´æÆ÷±ê־λ
                            frame_len = dwt_read32bitreg(RX_FINFO_ID) & RX_FINFO_RXFLEN_MASK;    //»ñµÃ½ÓÊÕµ½µÄÊý¾Ý³¤¶È
                            dwt_readrxdata(rx_buffer, frame_len, 0);   //¶ÁÈ¡½ÓÊÕÊý¾Ý
                            dwt_setrxtimeout(0);//DELAY_BETWEEN_TWO_FRAME_UUS*(nearbase_num+1-recbase_num)+10);//É趨½ÓÊÕ³¬Ê±Ê±¼ä£¬0λûÓг¬Ê±Ê±¼ä
                            dwt_rxenable(0);//´ò¿ª½ÓÊÕ
                            if (rx_buffer[MESSAGE_TYPE_IDX] == NEAR_RESPONSE&&!memcmp(&rx_buffer[TAG_ID_IDX],&dev_id,2)&&rx_buffer[GROUP_ID_IDX]==group_id) //ÅжϽÓÊÕµ½µÄÊý¾ÝÊÇ·ñÊÇresponseÊý¾Ý
                            {    u16 rec_nearbaseid,rec_nearbasepos;
                                poll_tx_ts = get_tx_timestamp_u64();                                        //»ñµÃPOLL·¢ËÍʱ¼äT1
                                resp_rx_ts = get_rx_timestamp_u64();                                        //»ñµÃRESPONSE½ÓÊÕʱ¼äT4    
                                recbase_num++;
                                memcpy(&rec_nearbaseid,&rx_buffer[ANCHOR_ID_IDX],2);
                                rec_remotepara_state = rx_buffer[MOTORSTATE_INDEX]>>4;
                                if(rec_remotepara_state != 0)
                                {   
                                    para_update = rec_remotepara_state;
                                    memcpy(rec_remotepara,&rx_buffer[REMOTEPARA_INDEX],7);
                                    if(para_update==2)
                                    {
                                        flag_ancreadpara = 1;                                     
                                    }
                                }
                                if(last_nearbase_num==0)
                                {
                                    get_newbase=1;
                                    nearbaseid_list[0]=rec_nearbaseid;
                                    nearbase_num=1;
                                    memcpy(&tx_near_msg[ANCHOR_ID_IDX],&rec_nearbaseid,2);
                                }
                                if(rec_nearbaseid==nearbaseid_list[0])
                                {
                                    //////////////////////////////////ʱ¼äͬ²½
                                    memcpy(&sync_timer,&rx_buffer[ANCTIMEMS],2);
                                    memcpy(&tmp_time,&rx_buffer[ANCTIMEUS],2);
                                    current_count=HAL_LPTIM_ReadCounter(&hlptim1);
//                                    memcpy(&tagslotpos,&rx_buffer[TAGSLOTPOS],2);        
                                    tmp_time=tmp_time+450;
                                    if(tmp_time>999)
                                    {
                                        tmp_time-=999;
                                        sync_timer++;
                                        if(sync_timer>=1010)
                                            {sync_timer=0;}
                                    }
                                //    TIM3->CNT=tmp_time;
//                                    if(tagslotpos>max_slotpos)
//                                        tagslotpos=tagslotpos%(max_slotpos+1);
//                                        tyncpoll_time=(tagslotpos-1)*slottime;
                                    ////////////////////////////
                                    rec_nearbasepos=0;
                                    exsistbase_list[rec_nearbasepos]=KEEP_TIMES;
                                    memcpy(&temp_dist,&rx_buffer[DIST_IDX],4);
                                    nearbase_distlist[rec_nearbasepos]=temp_dist;
                                    if((rx_buffer[MOTORSTATE_INDEX]&0xf)!=3)
                                        motor_state=rx_buffer[MOTORSTATE_INDEX]&0xf;
                                    
                                    
                                    mainbase_lost_count=0;
                                    flag_finalsend=1;
                                    memcpy(&mainbase_dist,&rx_buffer[DIST_IDX],4);
                                    final_tx_time = (resp_rx_ts + ((RESP_RX_TO_FINAL_TX_DLY_UUS+DELAY_BETWEEN_TWO_FRAME_UUS*nearbase_num+500) * UUS_TO_DWT_TIME)) >> 8;
                                    temp1=final_tx_time-((850*UUS_TO_DWT_TIME)>>8);
                                    temp2=final_tx_time+((100*UUS_TO_DWT_TIME)>>8);
                                //    dwt_setdelayedtrxtime(final_tx_time);//ÉèÖÃfinal°ü·¢ËÍʱ¼äT5
                                    final_tx_ts = (((uint64_t)(final_tx_time & 0xFFFFFFFE)) << 8) + TX_ANT_DLY;//final°üʵ¼Ê·¢ËÍʱ¼äÊǼÆËãʱ¼ä¼ÓÉÏ·¢ËÍÌìÏßdelay
                                    final_msg_set_ts(&tx_near_msg[FINAL_MSG_POLL_TX_TS_IDX], poll_tx_ts);//½«T1£¬T4£¬T5дÈë·¢ËÍÊý¾Ý
                                    final_msg_set_ts(&tx_near_msg[FINAL_MSG_RESP_RX_NEARBASE_IDX], resp_rx_ts);
                                    final_msg_set_ts(&tx_near_msg[FINAL_MSG_FINAL_TX_TS_IDX], final_tx_ts);
                                    tx_near_msg[MESSAGE_TYPE_IDX]=NEAR_FINAL;
                                    tx_near_msg[GROUP_ID_IDX] = group_id;
                                    
                                    dwt_writetxdata(28+nearbase_num*4, tx_near_msg, 0);//½«·¢ËÍÊý¾ÝдÈëDW1000
                                    dwt_writetxfctrl(28+nearbase_num*4, 0);//É趨·¢ËÍÊý¾Ý³¤¶È
                                    flag_getresponse=1;
                                    memcpy(&rec_tagpos_binary,&rx_buffer[NEARMSG_EMPTYSLOTPOS_INDEX],4);
                                    
                                
                                    //ʱ¼äͬ²½
                                    ancsync_time=((sync_timer)*1000+tmp_time);    
                                    last_slotnum=current_slotnum;
                                    current_slotnum=((float)sync_timer/g_com_map[COM_INTERVAL])+1;
                                    if(current_slotnum==last_slotnum-1)
                                    {flag_getresponse=1;}
                                    lastsync_timer=sync_timer;
                                    offsettimeus=ancsync_time-current_count*LPTIMER_LSB+offset;
//                                    SetNextPollTime(tyncpoll_time);
//                                    if(rec_remotepara_state==1)
//                                    {
//                                         memcpy(rec_remotepara,&rx_buffer[REMOTEPARA_INDEX],REMOTEPARA_LEN);
//                                        memcpy(&g_com_map[COM_INTERVAL],&rec_remotepara[0],8);
//                                        memcpy(&g_com_map[POWER],&rec_remotepara[8],10);
//                                        if(g_com_map[COM_INTERVAL]>0&&g_com_map[COM_INTERVAL]<1000&&g_com_map[POWER]<67&&g_com_map[POWER]>0)
//                                        {save_com_map_to_flash();
//                                        delay_ms(100);                                        
//                                        }
//                                        NVIC_SystemReset();
//                                    } 
                                }else{
                                    rec_nearbasepos=FindNearBasePos(rec_nearbaseid);
                                    
                                        if(rec_nearbasepos>=last_nearbase_num)          //·¢ÏÖеĻùÕ¾
                                    {
                                        get_newbase=1;
                                        nearbase_num++;
                                        nearbaseid_list[rec_nearbasepos] = rec_nearbaseid;
                                        memcpy(&tx_near_msg[ANCHOR_ID_IDX],&rec_nearbaseid,2);
                                    }
                                    
                                    exsistbase_list[rec_nearbasepos]=KEEP_TIMES;
                                    memcpy(&temp_dist,&rx_buffer[DIST_IDX],4);
                                    nearbase_distlist[rec_nearbasepos]=temp_dist;
                                    
                                    if(motor_state<(rx_buffer[MOTORSTATE_INDEX]&0xf)&&(rx_buffer[MOTORSTATE_INDEX]&0xf)!=3)
                                    {
                                            motor_state=rx_buffer[MOTORSTATE_INDEX];
                                    }
                                    final_msg_set_ts(&tx_near_msg[FINAL_MSG_RESP_RX_NEARBASE_IDX+(rec_nearbasepos)*4], resp_rx_ts);        
               
                                    dwt_writetxdata(28+nearbase_num*4, tx_near_msg, 0);//½«·¢ËÍÊý¾ÝдÈëDW1000
                                    dwt_writetxfctrl(28+nearbase_num*4, 0);//É趨·¢ËÍÊý¾Ý³¤¶È
                                
 
                                    //dwt_setdelayedtrxtime(final_tx_time);//ÉèÖÃfinal°ü·¢ËÍʱ¼äT5
                                //    result=dwt_starttx(DWT_START_TX_DELAYED);//É趨ΪÑÓ³Ù·¢ËÍ            
                                    //dwt_writetxdata(4,&tx_near_msg[FINAL_MSG_RESP_RX_NEARBASE_IDX+(rec_nearbasepos+1)*4], FINAL_MSG_RESP_RX_NEARBASE_IDX+(rec_nearbasepos+1)*4);//½«·¢ËÍÊý¾ÝдÈëDW1000
                                }                                
                            }
                        }else{
                        dwt_write32bitreg(SYS_STATUS_ID,SYS_STATUS_RXFCG| SYS_STATUS_ALL_RX_ERR);
                        if(flag_rxon)
                            {dwt_rxenable(0);    
                            }                                
                        }            
                    //    dwt_write32bitreg(SYS_STATUS_ID,SYS_STATUS_RXFCG| SYS_STATUS_ALL_RX_ERR);
            }
            if(mainbase_lost_count>tag_frequency*BASELOST_STOPMOTOR_TIME)
            {motor_state=0; }
            dwt_write32bitreg(SYS_STATUS_ID,SYS_STATUS_RXFCG| SYS_STATUS_ALL_RX_ERR);
            nearbase_num=recbase_num;
        //    tyncpoll_time=0;
            next_nearbase_num=0;
            j = 0;
            for(i=0;i<last_nearbase_num+get_newbase;i++)
            {
                if(exsistbase_list[i]>0)
                {        
                    next_nearbase_num++;
                    true_exsistbase_list[j]=exsistbase_list[i];
                    true_nearbase_idlist[j]=nearbaseid_list[i];            
                    true_nearbase_distlist[j++]=nearbase_distlist[i];
                    exsistbase_list[i]--;
                }
            }
            if(mainbase_lost_count>1&&exsistbase_list[0] != 0)
            {
                last_lpcount+= HAL_LPTIM_ReadCounter(&hlptim1)%(g_com_map[COM_INTERVAL]*16);
            }
            last_nearbase_num = next_nearbase_num;
            for(i=0;i<last_nearbase_num-1;i++)
            {
                for(j=0;j<last_nearbase_num-1;j++)
                {
                    if(true_nearbase_distlist[j]>true_nearbase_distlist[j+1])
                    {
                        u32 temp_dist,temp_id,temp_exsis;
                        temp_dist=true_nearbase_distlist[j];
                        temp_id = true_nearbase_idlist[j];
                        temp_exsis=true_exsistbase_list[i];
                        true_nearbase_distlist[j]=true_nearbase_distlist[j+1];
                        true_nearbase_idlist[j]=true_nearbase_idlist[j+1];
                        true_exsistbase_list[j]=true_exsistbase_list[j+1];
                        
                        true_nearbase_distlist[j+1]=temp_dist;
                        true_nearbase_idlist[j+1]=temp_id;
                        true_exsistbase_list[j+1]=temp_exsis;
                    }            
                }
            }
            
            report_num=0;
    for (i=0;i<last_nearbase_num;i++)
            {
                nearbaseid_list[i]=true_nearbase_idlist[i];
                nearbase_distlist[i]=true_nearbase_distlist[i];
                if(nearbase_distlist[i]!=0x1ffff&&true_exsistbase_list[i]==KEEP_TIMES)
                {
                    memcpy(&usart_send[4+6*report_num],&nearbaseid_list[i],2);
                    memcpy(&usart_send[6+6*report_num],&nearbase_distlist[i],4);
                    report_num++;
                }
            }
            #ifdef USART_INTEGRATE_OUTPUT    
                usart_send[0] = 0x55;     
                usart_send[1] = 0xAA;              
                usart_send[2] = 4;//Õý³£Ä£Ê½
                usart_send[3] = report_num*6+2;//Õý³£Ä£Ê½
                checksum = Checksum_u16(&usart_send[2],report_num*6+2);
                memcpy(&usart_send[4+report_num*6],&checksum,2);
                USART_puts(usart_send,6+report_num*6);
            #endif
            
            for(i=0;i<MAX_NEARBASE_NUM;i++)
            {
                nearbase_distlist[i]=0x1ffff;
            }
    dwt_write32bitreg(SYS_STATUS_ID, SYS_STATUS_ALL_RX_ERR| SYS_STATUS_TXFRS |SYS_STATUS_RXFCG);
//HAL_GPIO_WritePin(LED0_GPIO, GPIO_PIN_9, GPIO_PIN_RESET);
if(para_update==1)
    {   
        uint16_t calCRC;
        calCRC = CRC_Compute(rec_remotepara,5);
        if(memcmp(&calCRC,&rec_remotepara[5],2)==0)
        {   uint8_t pack_msgtype,pack_index,pack_length;
            pack_msgtype = rec_remotepara[0];
            pack_index = rec_remotepara[1];
            pack_length = rec_remotepara[2];
            if(pack_msgtype==2)
            {
                if( pack_index == 1)//MOTOR_ONTIME_INDEX)
                {
               
               //     motor_keeptime = rec_remotepara[3];
                }else{
                    if(pack_index<200)
                    {
                        memcpy((uint8_t*)&g_com_map + pack_index, &rec_remotepara[3], pack_length);
                        //·µ»ØÒ»¸öerror״̬
                        //SendComMap(pack_datalen,pack_index);
                        save_com_map_to_flash();
                        delay_ms(100);
                        NVIC_SystemReset();
                    }
                }
            }
        }
    }
}
u8 nearmsg_mainbase=0,rec_tagpos_emptylist[32];
void GetNearMsg(void)
{
    u32 start_poll,frame_len;
if(nearmsg_mainbase)
    {nearmsg_mainbase=0;
    }else{
    nearmsg_mainbase=1;
    }
    memcpy(&tx_near_msg[ANCHOR_ID_IDX],&nearmsg_mainbase,2);
    memcpy(&tx_near_msg[TAG_ID_IDX],&dev_id,2);
    tx_near_msg[GROUP_ID_IDX] = group_id;
    tx_near_msg[MESSAGE_TYPE_IDX] = NEAR_MSG;
    
    dwt_setrxaftertxdelay(POLL_TX_TO_RESP_RX_DLY_UUS);            //ÉèÖ÷¢ËÍºó¿ªÆô½ÓÊÕ£¬²¢É趨ÑÓ³Ùʱ¼ä
  dwt_setrxtimeout(RESP_RX_TIMEOUT_UUS);    
    dwt_writetxdata(12, tx_near_msg, 0);//½«Poll°üÊý¾Ý´«¸øDW1000£¬½«ÔÚ¿ªÆô·¢ËÍʱ´«³öÈ¥
    dwt_writetxfctrl(12, 0);//ÉèÖó¬¿í´ø·¢ËÍÊý¾Ý³¤¶È
    dwt_starttx(DWT_START_TX_IMMEDIATE| DWT_RESPONSE_EXPECTED);
 
    /* We assume that the transmission is achieved correctly, poll for reception of a frame or error/timeout. See NOTE 8 below. */
    while (!((status_reg = dwt_read32bitreg(SYS_STATUS_ID)) & (SYS_STATUS_RXFCG | SYS_STATUS_ALL_RX_ERR)))//²»¶Ï²éѯоƬ״ֱ̬µ½³É¹¦½ÓÊÕ»òÕß·¢Éú´íÎó
    {
    };
    if(status_reg==0xffffffff)
    {
        NVIC_SystemReset();
    }
    if (status_reg & SYS_STATUS_RXFCG)//Èç¹û³É¹¦½ÓÊÕ
    {
        dwt_write32bitreg(SYS_STATUS_ID, SYS_STATUS_RXFCG | SYS_STATUS_TXFRS);//Çå³þ¼Ä´æÆ÷±ê־λ
        frame_len = dwt_read32bitreg(RX_FINFO_ID) & RX_FINFO_RXFLEN_MASK;    //»ñµÃ½ÓÊÕµ½µÄÊý¾Ý³¤¶È
        dwt_readrxdata(rx_buffer, frame_len, 0);   //¶ÁÈ¡½ÓÊÕÊý¾Ý
        if (rx_buffer[MESSAGE_TYPE_IDX] == NEAR_MSG&&!memcmp(&rx_buffer[TAG_ID_IDX],&dev_id,2)) //ÅжϽÓÊÕµ½µÄÊý¾ÝÊÇ·ñÊÇresponseÊý¾Ý
        {
            nearbase_num=rx_buffer[NEARBASENUM_INDEX];
            memcpy(&rec_tagpos_binary,&rx_buffer[NEARMSG_EMPTYSLOTPOS_INDEX],4);
            tagslotpos=GetRandomSlotPos(rec_tagpos_binary);
            //tagslotpos=rx_buffer[TAGSLOTPOS];
            memcpy(nearbaseid_list,&rx_buffer[NEARBASEID_INDEX],nearbase_num*2);
            //slottime=ceil((nearbase_num+2)*0.3)+1;
            tyncpoll_time=tagslotpos*slottime;
            tag_state=NEARPOLL;
        }
    }else{
            tyncpoll_time = (tagslotpos--%max_slotpos)*slottime;
    }
}
u32 id;
void Tag_App(void)//·¢ËÍģʽ(TAG±êÇ©)
{
    
    //LED0_ON;
    id =  dwt_readdevid() ;
        while (DWT_DEVICE_ID != id) 
    {
            id =  dwt_readdevid() ;
    }
 
    g_Resttimer=0;
//    tag_state=DISCPOLL;
    switch(tag_state)
    {
        case DISCPOLL:
        //    Poll();
            break;
        case GETNEARMSG:
 
                GetNearMsg();
     
            break;
        case NEARPOLL:
            //GPIO_WriteBit(EU_TX_GPIO, EU_RX_PIN, Bit_SET);
            NearPoll();
            //GPIO_WriteBit(EU_TX_GPIO, EU_RX_PIN, Bit_RESET);
            break;
    }
    dwt_entersleep();
    bat_percent=Get_VDDVlotage();
}