| /* Clear reception timeout to start next ranging process. */dwt_setrxtimeout(0);
 printf("清除接收超时以开始下一个测距过程 \r\n");
 /* Activate reception immediately. */
 dwt_rxenable(0);
 printf("接收使能 \r\n");
 /* Poll for reception of a frame or error/timeout. See NOTE 7 below. */
 while (!((status_reg = dwt_read32bitreg(SYS_STATUS_ID)) & (SYS_STATUS_RXFCG | SYS_STATUS_ALL_RX_ERR)))
 { };
 
 if (status_reg & SYS_STATUS_RXFCG)
 {
 /* Clear good RX frame event in the DW1000 status register. */
 dwt_write32bitreg(SYS_STATUS_ID, SYS_STATUS_RXFCG | SYS_STATUS_TXFRS);
 
 /* A frame has been received, read it into the local buffer. */
 frame_len = dwt_read32bitreg(RX_FINFO_ID) & RX_FINFO_RXFL_MASK_1023;
 if (frame_len <= RX_BUFFER_LEN)
 {
 dwt_readrxdata(rx_buffer, frame_len, 0);
 }
 /* Check that the frame is a poll sent by "DS TWR initiator" example.
 * As the sequence number field of the frame is not relevant, it is cleared to simplify the validation of the frame. */
 printf("判断是否是测距发起者 \r\n");
 if(rx_buffer[ALL_MSG_SN_IDX]%ANCHOR_MAX_NUM != ANCHOR_IND)
 continue;
 
 
 
 
 |