实现10us精度基站与标签时间同步

yincheng.zhong

2019-11-01 fd498f8f31ff9428fa4c042337ac2fba895d4794

 Ô´Âë/ºËÐÄ°å/Src/main.c

@@ -18,7 +18,8 @@
   //SystemInit();
   NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x5000);
   Nvic_Init();
   Systick_Init();
//   Systick_Init();
   TIM3_Int_Init();
   Led_Init();
   Beep_Init();
   DW_GPIO_Init();
@@ -42,6 +43,7 @@
   checksum = Checksum_u16(&hbsend[2],12);
   memcpy(&hbsend[14],&checksum,2);
}
u16 tyncpoll_time;
void Program_Init(void)
{uint16_t i;
   Usart1ParseDataCallback = UsartParseDataHandler;
@@ -49,12 +51,17 @@
   //deca_sleep(1000);
   HeartBeatInit();
   dev_id = g_com_map[DEV_ID];
//   g_com_map[DEV_ROLE]=1;
//      g_com_map[DEV_ID]=1;
//   g_com_map[COM_INTERVAL]=10;
   if(g_com_map[DEV_ROLE])
   {
      tyncpoll_time=g_com_map[DEV_ID]*g_com_map[MAX_REPORT_ANC_NUM]*4/3;
   printf("标签ID: %d .\r\n",dev_id);
   printf("通讯间隔: %d ms.\r\n",g_com_map[COM_INTERVAL]);
   printf("单次通讯基站数量: %d个.\r\n",g_com_map[MAX_REPORT_ANC_NUM]);
   }else{
	
   anchor_type = dev_id%g_com_map[MAX_REPORT_ANC_NUM];
   printf("基站ID: %x .\r\n",dev_id);
   printf("基站类型: %c .\r\n",anchor_type+0x41);
@@ -96,24 +103,7 @@
      if(g_com_map[HEARTBEAT]&&g_com_map[DEV_ROLE]==0)
      HeatBeat();
   }
   if(poll_timer>=g_com_map[COM_INTERVAL]-tag_delaytime)
   {
      poll_timer=0;
      if(g_com_map[ANC_POLL]||g_com_map[DEV_ROLE])
      {
         if(g_com_map[DEV_ROLE]==0)
         {int8_t correction_time;
            correction_time=tag_timer-g_com_map[DEV_ID]*3;
            tag_delaytime=correction_time;
                     if(tag_delaytime>g_com_map[COM_INTERVAL]/2)
                     {
                     tag_delaytime=tag_delaytime-g_com_map[COM_INTERVAL];
                     }
         }
      g_start_send_flag=1;
      }
      
   }
   if(g_com_map[CNT_UPDATE]==1)
   {
   uint32_t result = 0;
@@ -135,13 +125,14 @@
 
   Device_Init();
   Program_Init();
   Dw1000_Init();
   //Dw1000_Init();
  delay_ms(10);   
   Dw1000_App_Init();
    /* Loop forever initiating ranging exchanges. */
   RCC_APB1PeriphClockCmd(RCC_APB1Periph_PWR, ENABLE);
   usart_send[0]=0x55;
   usart_send[1]=0xAA;
   UART_PushFrame(hbsend,16);
   while(1)
   {
      IdleTask();