V2.20 1.增加静止时间判定参数，测距有BUG抖动较大

zhyinch

2021-01-20 1b83e716601b4c7ba981a00be6ecf24a9d549d52

 Src/stm32l0xx_it.c

@@ -168,7 +168,7 @@
      }
      nomove_count = 0;
      waitusart_timer = tag_frequency*USART_KEEPWAKE_TIME;
      UsartInit();
   //   UsartInit();
      
      //   MOTOR_ON;      
   }