| | |
| | | #include "led.h" |
| | | #include "serial_at_cmd_app.h" |
| | | #include "Usart.h" |
| | | #include "global_param.h" |
| | | #include "filters.h" |
| | | |
| | | |
| | | |
| | | /*------------------------------------ Marcos ------------------------------------------*/ |
| | |
| | | #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 5100 |
| | | #define RESP_RX_TO_FINAL_TX_DLY_UUS 1500 |
| | | /* Receive response timeout. See NOTE 5 below. */ |
| | | #define RESP_RX_TIMEOUT_UUS 14700 |
| | | #define RESP_RX_TIMEOUT_UUS 2700 |
| | | |
| | | #define POLL_RX_TO_RESP_TX_DLY_UUS 3600 |
| | | #define POLL_RX_TO_RESP_TX_DLY_UUS 420 |
| | | /* 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 1500 |
| | | #define RESP_TX_TO_FINAL_RX_DLY_UUS 200 |
| | | /* Receive final timeout. See NOTE 5 below. */ |
| | | #define FINAL_RX_TIMEOUT_UUS 4300 |
| | | |
| | |
| | | #define FINAL_MSG_TS_LEN 4 |
| | | |
| | | #define GROUP_ID_IDX 0 |
| | | #define SOURCE_ID_IDX 1 |
| | | #define MESSAGE_TYPE_IDX 3 |
| | | #define ANCHOR_ID_IDX 1 |
| | | #define TAG_ID_IDX 3 |
| | | #define MESSAGE_TYPE_IDX 5 |
| | | #define DIST_IDX 6 |
| | | |
| | | #define POLL 0x01 |
| | | #define RESPONSE 0x02 |
| | |
| | | |
| | | /*------------------------------------ Variables ------------------------------------------*/ |
| | | /* Default communication configuration. We use here EVK1000's default mode (mode 3). */ |
| | | static dwt_config_t config = |
| | | { |
| | | 2, /* Channel number. */ |
| | | DWT_PRF_64M, /* Pulse repetition frequency. */ |
| | | DWT_PLEN_1024, /* Preamble length. */ |
| | | DWT_PAC32, /* 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_110K, /* Data rate. */ |
| | | DWT_PHRMODE_STD, /* PHY header mode. */ |
| | | (1025 + 64 - 32) /* SFD timeout (preamble length + 1 + SFD length - PAC size). Used in RX only. */ |
| | | 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. */ |
| | | 0, /* 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. */ |
| | | }; |
| | | |
| | | /* Frames used in the ranging process. See NOTE 2 below. */ |
| | |
| | | |
| | | double distance, dist_no_bias, dist_cm; |
| | | |
| | | uint32_t g_UWB_com_interval = 0; |
| | | float dis_after_filter; //å½åè·ç¦»å¼ |
| | | LPFilter_Frac* p_Dis_Filter; //æµè·ç¨çä½éæ»¤æ³¢å¨ |
| | | |
| | | uint16_t g_Tagdist[256]; |
| | | uint8_t g_flag_Taggetdist[256]; |
| | | /*------------------------------------ Functions ------------------------------------------*/ |
| | | |
| | | |
| | |
| | | *ts += ts_field[i] << (i * 8); |
| | | } |
| | | } |
| | | |
| | | void TagDistClear(void) |
| | | { |
| | | static uint16_t clear_judge_cnt; |
| | | uint16_t i; |
| | | if(clear_judge_cnt++>1000) //设å®1Såé¢ï¼æ¯ç§è¿ä¸æ¬¡ã夿æ å¿ä½å¤§äºçäº2ï¼2s没æ¶å°æ°æ®å°±ææ°æ®åæ0xffffï¼ä¸è§¦åè¦æ¥ã |
| | | { |
| | | clear_judge_cnt=0; |
| | | for(i=0;i<255;i++) |
| | | { |
| | | g_flag_Taggetdist[i]++; |
| | | if(g_flag_Taggetdist[i]>=2) |
| | | { |
| | | g_Tagdist[i]=0xffff; |
| | | } |
| | | } |
| | | } |
| | | } |
| | | void Dw1000_Init(void) |
| | | { |
| | | /* Reset and initialise DW1000. |
| | |
| | | dwt_setrxaftertxdelay(POLL_TX_TO_RESP_RX_DLY_UUS); //设置åéåå¼å¯æ¥æ¶ï¼å¹¶è®¾å®å»¶è¿æ¶é´ |
| | | dwt_setrxtimeout(RESP_RX_TIMEOUT_UUS); //è®¾ç½®æ¥æ¶è¶
æ¶æ¶é´ |
| | | } |
| | | void Delayus(uint16_t time) |
| | | void Dw1000_App_Init(void) |
| | | { |
| | | uint16_t i = 0; |
| | | while (time--) { |
| | | i = 10; |
| | | while (i--) |
| | | ; |
| | | |
| | | } |
| | | g_com_map[DEV_ID]=0x03; |
| | | tx_poll_msg[MESSAGE_TYPE_IDX]=POLL; |
| | | tx_resp_msg[MESSAGE_TYPE_IDX]=RESPONSE; |
| | | tx_final_msg[MESSAGE_TYPE_IDX]=FINAL; |
| | | memcpy(&tx_poll_msg[TAG_ID_IDX], &g_com_map[DEV_ID], 2); |
| | | memcpy(&tx_final_msg[TAG_ID_IDX], &g_com_map[DEV_ID], 2); |
| | | memcpy(&tx_resp_msg[ANCHOR_ID_IDX], &g_com_map[DEV_ID], 2); |
| | | |
| | | } |
| | | void tag_sleep_configuraion(void) |
| | | { |
| | | dwt_configuresleep(0x940, 0x7); |
| | | dwt_entersleep(); |
| | | } |
| | | uint8_t result; |
| | | void Tag_App(void)//å鿍¡å¼(TAGæ ç¾) |
| | | { |
| | | uint32_t frame_len; |
| | | uint32_t final_tx_time; |
| | | |
| | | GPIO_ResetBits(SPIx_GPIO, SPIx_CS); |
| | | Delayus(2000); |
| | | delay_us(2500); |
| | | GPIO_SetBits(SPIx_GPIO, SPIx_CS); |
| | | |
| | | /* Write frame data to DW1000 and prepare transmission. See NOTE 7 below. */ |
| | |
| | | /* Check that the frame is the expected response from the companion "DS TWR responder" example. |
| | | * As the sequence number field of the frame is not relevant, it is cleared to simplify the validation of the frame. */ |
| | | rx_buffer[ALL_MSG_SN_IDX] = 0; |
| | | if (rx_buffer[9] == 0x10) //å¤ææ¥æ¶å°çæ°æ®æ¯å¦æ¯responseæ°æ® |
| | | if (rx_buffer[MESSAGE_TYPE_IDX] == RESPONSE) //å¤ææ¥æ¶å°çæ°æ®æ¯å¦æ¯responseæ°æ® |
| | | { |
| | | /* Retrieve poll transmission and response reception timestamp. */ |
| | | poll_tx_ts = get_tx_timestamp_u64(); //è·å¾POLLåéæ¶é´T1 |
| | | resp_rx_ts = get_rx_timestamp_u64(); //è·å¾RESPONSEæ¥æ¶æ¶é´T4 |
| | | |
| | | memcpy(&anchor_dist_last_frm[tag_id], &rx_buffer[11], 2); |
| | | |
| | | |
| | | memcpy(&anchor_dist_last_frm[tag_id], &rx_buffer[DIST_IDX], 2); |
| | | memcpy(&tx_final_msg[ANCHOR_ID_IDX], &rx_buffer[ANCHOR_ID_IDX], 2); |
| | | /* Compute final message transmission time. See NOTE 9 below. */ |
| | | final_tx_time = (resp_rx_ts + (RESP_RX_TO_FINAL_TX_DLY_UUS * UUS_TO_DWT_TIME)) >> 8;//计ç®finalå
åéæ¶é´ï¼T5=T4+Treply2 |
| | | dwt_setdelayedtrxtime(final_tx_time);//设置finalå
åéæ¶é´T5 |
| | |
| | | tx_final_msg[ALL_MSG_SN_IDX] = frame_seq_nb; |
| | | dwt_writetxdata(sizeof(tx_final_msg), tx_final_msg, 0);//å°åéæ°æ®åå
¥DW1000 |
| | | dwt_writetxfctrl(sizeof(tx_final_msg), 0);//设å®åéæ°æ®é¿åº¦ |
| | | dwt_starttx(DWT_START_TX_DELAYED);//设å®ä¸ºå»¶è¿åé |
| | | result=dwt_starttx(DWT_START_TX_DELAYED);//设å®ä¸ºå»¶è¿åé |
| | | |
| | | |
| | | /* Poll DW1000 until TX frame sent event set. See NOTE 8 below. */ |
| | | while (!(dwt_read32bitreg(SYS_STATUS_ID) & SYS_STATUS_TXFRS))//䏿æ¥è¯¢è¯çç¶æç´å°åé宿 |
| | | if(result==0) |
| | | {while (!(dwt_read32bitreg(SYS_STATUS_ID) & SYS_STATUS_TXFRS))//䏿æ¥è¯¢è¯çç¶æç´å°åé宿 |
| | | { }; |
| | | |
| | | } |
| | | /* Clear TXFRS event. */ |
| | | dwt_write32bitreg(SYS_STATUS_ID, SYS_STATUS_TXFRS);//æ¸
餿 å¿ä½ |
| | | |
| | |
| | | dwt_entersleep(); |
| | | |
| | | } |
| | | |
| | | uint16_t g_Resttimer; |
| | | void Anchor_App(void) |
| | | { |
| | | uint32_t frame_len; |
| | |
| | | { |
| | | UART_CheckReceive(); |
| | | UART_CheckSend(); |
| | | g_Resttimer=0; |
| | | }; |
| | | |
| | | if (status_reg & SYS_STATUS_RXFCG)//æåæ¥æ¶ |
| | |
| | | rx_buffer[ALL_MSG_SN_IDX] = 0; |
| | | |
| | | //å°æ¶å°çtag_idåå«åå
¥å次é讯çå
ä¸ï¼ä¸ºå¤æ ç¾é讯æå¡ï¼é²æ¢ä¸æ¬¡éè®¯ä¸æ¥æ¶å°ä¸åIDæ ç¾çæ°æ® |
| | | tag_id_recv = rx_buffer[5]; |
| | | tx_resp_msg[5] = tag_id_recv; |
| | | tag_id_recv = rx_buffer[TAG_ID_IDX]; |
| | | tx_resp_msg[TAG_ID_IDX] = tag_id_recv; |
| | | |
| | | |
| | | if (rx_buffer[9] == 0x21) //夿æ¯å¦æ¯pollå
æ°æ® |
| | | if (rx_buffer[MESSAGE_TYPE_IDX] == POLL) //夿æ¯å¦æ¯pollå
æ°æ® |
| | | { |
| | | /* Retrieve poll reception timestamp. */ |
| | | poll_rx_ts = get_rx_timestamp_u64();//è·å¾Pollå
æ¥æ¶æ¶é´T2 |
| | |
| | | dwt_setrxtimeout(FINAL_RX_TIMEOUT_UUS);//æ¥æ¶è¶
æ¶æ¶é´ |
| | | |
| | | /* Write and send the response message. See NOTE 9 below.*/ |
| | | memcpy(&tx_resp_msg[11], &anchor_dist_last_frm[tag_id_recv], 2); |
| | | memcpy(&tx_resp_msg[DIST_IDX], &anchor_dist_last_frm[tag_id_recv], 2); |
| | | tx_resp_msg[ALL_MSG_SN_IDX] = frame_seq_nb; |
| | | dwt_writetxdata(sizeof(tx_resp_msg), tx_resp_msg, 0);//åå
¥åéæ°æ® |
| | | dwt_writetxfctrl(sizeof(tx_resp_msg), 0);//设å®åéé¿åº¦ |
| | | dwt_starttx(DWT_START_TX_DELAYED | DWT_RESPONSE_EXPECTED);//å»¶è¿åéï¼çå¾
æ¥æ¶ |
| | | result = dwt_starttx(DWT_START_TX_DELAYED | DWT_RESPONSE_EXPECTED);//å»¶è¿åéï¼çå¾
æ¥æ¶ |
| | | |
| | | /* We assume that the transmission is achieved correctly, now poll for reception of expected "final" frame or error/timeout. |
| | | * See NOTE 7 below. */ |
| | | while (!((status_reg = dwt_read32bitreg(SYS_STATUS_ID)) & (SYS_STATUS_RXFCG | SYS_STATUS_ALL_RX_ERR)))///䏿æ¥è¯¢è¯çç¶æç´å°æ¥æ¶æåæè
åºç°é误 |
| | | if(result==0) |
| | | { |
| | | while (!((status_reg = dwt_read32bitreg(SYS_STATUS_ID)) & (SYS_STATUS_RXFCG | SYS_STATUS_ALL_RX_ERR)))///䏿æ¥è¯¢è¯çç¶æç´å°æ¥æ¶æåæè
åºç°é误 |
| | | { }; |
| | | |
| | | } |
| | | /* Increment frame sequence number after transmission of the response message (modulo 256). */ |
| | | frame_seq_nb++; |
| | | |
| | |
| | | /* Check that the frame is a final message sent by "DS TWR initiator" example. |
| | | * As the sequence number field of the frame is not used in this example, it can be zeroed to ease the validation of the frame. */ |
| | | rx_buffer[ALL_MSG_SN_IDX] = 0; |
| | | if (rx_buffer[9] == 0x23) //夿æ¯å¦ä¸ºFinalå
|
| | | if (rx_buffer[MESSAGE_TYPE_IDX] == FINAL&&rx_buffer[TAG_ID_IDX]==tag_id_recv&&rx_buffer[ANCHOR_ID_IDX]==g_com_map[DEV_ID]) //夿æ¯å¦ä¸ºFinalå
|
| | | { |
| | | uint32_t poll_tx_ts, resp_rx_ts, final_tx_ts; |
| | | uint32_t poll_rx_ts_32, resp_tx_ts_32, final_rx_ts_32; |
| | |
| | | dist_cm = dist_no_bias * 100; //dis 为åä½ä¸ºcmçè·ç¦» |
| | | // dist[TAG_ID] = LP(dis, TAG_ID); //LP 为ä½é滤波å¨ï¼è®©æ°æ®æ´ç¨³å® |
| | | |
| | | /*--------------------------以ä¸ä¸ºéæµè·é»è¾------------------------*/ |
| | | LED0_BLINK; //æ¯æå䏿¬¡é讯åéªç䏿¬¡ |
| | | g_UWB_com_interval = 0; |
| | | dis_after_filter=dist_cm; |
| | | g_Tagdist[tag_id_recv]=dist_cm; |
| | | g_flag_Taggetdist[tag_id_recv]=0; |
| | | //dis_after_filter = LP_Frac_Update(p_Dis_Filter, dist_cm); |
| | | |
| | | } |
| | | } |