| | |
| | | * @file main.c |
| | | * @brief Double-sided two-way ranging (DS TWR) initiator example code |
| | | * |
| | | * |
| | | * |
| | | * |
| | | * @attention |
| | | * |
| | |
| | | */ |
| | | |
| | | #include <string.h> |
| | | #include <math.h> |
| | | #include "dw_app.h" |
| | | #include "deca_device_api.h" |
| | | #include "deca_regs.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 |
| | |
| | | * 1 uus = 512 / 499.2 祍 and 1 祍 = 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 850 |
| | | /* Receive response timeout. See NOTE 5 below. */ |
| | | #define RESP_RX_TIMEOUT_UUS 600 |
| | | ///* 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 |
| | | |
| | | #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 200 |
| | | /* Receive final timeout. See NOTE 5 below. */ |
| | | #define FINAL_RX_TIMEOUT_UUS 4300 |
| | | ///* 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 |
| | | |
| | |
| | | #define FINAL_MSG_FINAL_TX_TS_IDX 18 |
| | | #define FINAL_MSG_TS_LEN 4 |
| | | |
| | | #define SYNC_SEQ_IDX 5 |
| | | //common |
| | | #define GROUP_ID_IDX 0 |
| | | #define ANCHOR_ID_IDX 1 |
| | | #define TAG_ID_IDX 5 |
| | | #define MESSAGE_TYPE_IDX 9 |
| | | //#define _UWB_4G |
| | | |
| | | //Poll |
| | | #define ANC_TYPE_IDX 14 |
| | | #define BATTARY_IDX 15 |
| | | #define BUTTON_IDX 16 |
| | | #define SEQUENCE_IDX 17 |
| | | //respose |
| | | #define DIST_IDX 10 |
| | | #define ANCTIMEMS 14 |
| | | #define ANCTIMEUS 16 |
| | | #define ANCSEND_INTERVAL 18 |
| | | |
| | | #define POLL 0x01 |
| | | #define RESPONSE 0x02 |
| | | #define FINAL 0x03 |
| | | #define SYNC 0x04 |
| | | |
| | | /*------------------------------------ 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_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. */ |
| | | #ifdef _UWB_4G |
| | | 2, /* Channel number. */ |
| | | #else |
| | | 5, |
| | | #endif |
| | | 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. */ |
| | | }; |
| | | |
| | | /* Frames used in the ranging process. See NOTE 2 below. */ |
| | | static uint8_t tx_poll_msg[20] = {0}; |
| | | static uint8_t tx_sync_msg[14] = {0}; |
| | | //static uint8_t rx_resp_msg[] = {0x41, 0x88, 0, 0xCA, 0xDE, 'V', 'E', 'W', 'A', 0x10, 0x02, 0, 0, 0, 0}; |
| | | static uint8_t tx_final_msg[24] = {0}; |
| | | |
| | | //static uint8_t rx_poll_msg[] = {0x00, 0x88, 0, 0xCA, 0xDE, 'W', 'A', 'V', 'E', 0x21, 0, 0}; |
| | | static uint8_t tx_resp_msg[22] = {0}; |
| | | //static uint8_t rx_final_msg[] = {0x41, 0x88, 0, 0xCA, 0xDE, 'W', 'A', 'V', 'E', 0x23, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; |
| | | |
| | | /* Frame sequence number, incremented after each transmission. */ |
| | | static uint32_t frame_seq_nb = 0,frame_seq_nb2=0; |
| | | |
| | | /* Hold copy of status register state here for reference, so reader can examine it at a breakpoint. */ |
| | | static uint32_t status_reg = 0; |
| | | |
| | | /* Buffer to store received response message. |
| | | * Its size is adjusted to longest frame that this example code is supposed to handle. */ |
| | | #define RX_BUF_LEN 24 |
| | | static uint8_t rx_buffer[RX_BUF_LEN]; |
| | | |
| | | /* Time-stamps of frames transmission/reception, expressed in device time units. |
| | | * As they are 40-bit wide, we need to define a 64-bit int type to handle them. */ |
| | | static uint64_t poll_tx_ts; |
| | | static uint64_t resp_rx_ts; |
| | | static uint64_t final_tx_ts; |
| | | |
| | | /* Length of the common part of the message (up to and including the function code, see NOTE 2 below). */ |
| | | 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; |
| | | uint8_t random_delay_tim = 0; |
| | | |
| | | double distance, dist_no_bias, dist_cm; |
| | | |
| | | uint32_t g_UWB_com_interval = 0; |
| | | float dis_after_filter; //当前距离值 |
| | | LPFilter_Frac* p_Dis_Filter; //测距用的低通滤波器 |
| | | |
| | | int32_t g_Tagdist[TAG_NUM_IN_SYS]; |
| | | uint8_t g_flag_Taggetdist[256]; |
| | | /*------------------------------------ Functions ------------------------------------------*/ |
| | | |
| | | |
| | | /*! ------------------------------------------------------------------------------------------------------------------ |
| | | * @fn get_tx_timestamp_u64() |
| | | * |
| | | * @brief Get the TX time-stamp in a 64-bit variable. |
| | | * /!\ This function assumes that length of time-stamps is 40 bits, for both TX and RX! |
| | | * |
| | | * @param none |
| | | * |
| | | * @return 64-bit value of the read time-stamp. |
| | | */ |
| | | 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; |
| | | } |
| | | |
| | | /*! ------------------------------------------------------------------------------------------------------------------ |
| | | * @fn get_rx_timestamp_u64() |
| | | * |
| | | * @brief Get the RX time-stamp in a 64-bit variable. |
| | | * /!\ This function assumes that length of time-stamps is 40 bits, for both TX and RX! |
| | | * |
| | | * @param none |
| | | * |
| | | * @return 64-bit value of the read time-stamp. |
| | | */ |
| | | 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; |
| | | } |
| | | |
| | | /*! ------------------------------------------------------------------------------------------------------------------ |
| | | * @fn final_msg_set_ts() |
| | | * |
| | | * @brief Fill a given timestamp field in the final message with the given value. In the timestamp fields of the final |
| | | * message, the least significant byte is at the lower address. |
| | | * |
| | | * @param ts_field pointer on the first byte of the timestamp field to fill |
| | | * ts timestamp value |
| | | * |
| | | * @return none |
| | | */ |
| | | 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 TagDistClear(void) |
| | | { |
| | | static uint16_t clear_judge_cnt; |
| | | uint16_t i; |
| | | if(clear_judge_cnt++>1000) //设定1S分频,每秒进一次。判断标志位大于等于2,2s没收到数据就把数据变成0xffff,不触发警报。 |
| | | { |
| | | clear_judge_cnt=0; |
| | | for(i=0;i<255;i++) |
| | | { |
| | | g_flag_Taggetdist[i]++; |
| | | if(g_flag_Taggetdist[i]>=20) |
| | | { |
| | | g_Tagdist[i]=0xffff; |
| | | } |
| | | } |
| | | } |
| | | } |
| | | |
| | | uint32_t uwbid=0; |
| | | void Dw1000_Init(void) |
| | | { |
| | | /* Reset and initialise DW1000. |
| | | /* 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();//重启DW1000 /* Target specific drive of RSTn line into DW1000 low for a period. */ |
| | | Spi_ChangePrescaler(SPIx_PRESCALER_SLOW); //设置为快速模式 |
| | | Spi_ChangePrescaler(SPIx_PRESCALER_SLOW); //设置为快速模式 |
| | | dwt_initialise(DWT_LOADUCODE);//初始化DW1000 |
| | | Spi_ChangePrescaler(SPIx_PRESCALER_FAST); //设置为快速模式 |
| | | Spi_ChangePrescaler(SPIx_PRESCALER_FAST); //设置为快速模式 |
| | | |
| | | /* Configure DW1000. See NOTE 6 below. */ |
| | | dwt_configure(&config);//配置DW1000 |
| | | |
| | | |
| | | |
| | | // dwt_setinterrupt( DWT_INT_RFCG | (DWT_INT_ARFE | DWT_INT_RFSL | DWT_INT_SFDT | DWT_INT_RPHE | DWT_INT_RFCE | DWT_INT_RFTO | DWT_INT_RXPTO), 1); |
| | | |
| | | |
| | | /* Apply default antenna delay value. See NOTE 1 below. */ |
| | | dwt_setrxantennadelay(RX_ANT_DLY); //设置接收天线延迟 |
| | | dwt_settxantennadelay(TX_ANT_DLY); //设置发射天线延迟 |
| | | |
| | | // dwt_setrxtimeout(1000);//设定接收超时时间,0位没有超时时间 |
| | | // dwt_rxenable(0);//打开接收 |
| | | // uwbid=dwt_readdevid(); |
| | | /* 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. */ |
| | | //设置接收超时时间 |
| | | //设置接收超时时间 |
| | | } |
| | | void Dw1000_App_Init(void) |
| | | { |
| | | //g_com_map[DEV_ID] = 0x0b; |
| | | 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[GROUP_ID_IDX], &group_id, 1); |
| | | memcpy(&tx_final_msg[GROUP_ID_IDX], &group_id, 1); |
| | | memcpy(&tx_resp_msg[GROUP_ID_IDX], &group_id, 1); |
| | | |
| | | memcpy(&tx_poll_msg[TAG_ID_IDX], &dev_id, 4); |
| | | memcpy(&tx_final_msg[TAG_ID_IDX], &dev_id, 4); |
| | | memcpy(&tx_resp_msg[ANCHOR_ID_IDX], &dev_id, 4); |
| | | memcpy(&tx_sync_msg[ANCHOR_ID_IDX], &dev_id, 4); |
| | | } |
| | | uint16_t Checksum_u16(uint8_t* pdata, uint32_t len) |
| | | uint16_t Checksum_u16(uint8_t* pdata, uint32_t len) |
| | | { |
| | | uint16_t sum = 0; |
| | | uint32_t i; |
| | |
| | | return sum; |
| | | } |
| | | |
| | | uint16_t tag_time_recv[TAG_NUM_IN_SYS]; |
| | | uint8_t usart_send[25]; |
| | | uint8_t battary,button; |
| | | u16 tag_time_recv[TAG_NUM_IN_SYS]; |
| | | u8 usart_send[100]; |
| | | u8 battary,button; |
| | | extern uint8_t g_pairstart; |
| | | void tag_sleep_configuraion(void) |
| | | { |
| | | dwt_configuresleep(0x940, 0x7); |
| | | dwt_entersleep(); |
| | | } |
| | | uint8_t g_start_send_flag; |
| | | uint8_t g_start_sync_flag; |
| | | void SyncPoll(uint8_t sync_seq) |
| | | { |
| | | g_start_sync_flag=1; |
| | | dwt_forcetrxoff(); |
| | | tx_sync_msg[SYNC_SEQ_IDX]=sync_seq; |
| | | dwt_writetxdata(sizeof(tx_sync_msg), tx_sync_msg, 0);//将Poll包数据传给DW1000,将在开启发送时传出去 |
| | | dwt_writetxfctrl(sizeof(tx_sync_msg), 0);//设置超宽带发送数据长度 |
| | | dwt_starttx(DWT_START_TX_IMMEDIATE); |
| | | dwt_configuresleep(0x940, 0x7); |
| | | dwt_entersleep(); |
| | | } |
| | | uint16_t g_Resttimer; |
| | | uint8_t result; |
| | | uint8_t tag_succ_times=0; |
| | | int32_t hex_dist,hex_dist2; |
| | | uint16_t checksum; |
| | | int8_t tag_delaytime; |
| | | extern uint16_t sync_timer; |
| | | uint16_t tmp_time,current_slottimes; |
| | | uint32_t time32_incr; |
| | | int32_t ancsync_time; |
| | | uint32_t frame_len; |
| | | int32_t count_offset,nextpoll_delaytime; |
| | | void Tag_App(void)//发送模式(TAG标签) |
| | | u32 id; |
| | | void UWB_Wkup(void) |
| | | { |
| | | |
| | | uint32_t final_tx_time; |
| | | uint32_t start_poll,id; |
| | | uint8_t i,getsync_flag=0; |
| | | //LED0_ON; |
| | | //dwt_forcetrxoff(); |
| | | id = dwt_readdevid() ; |
| | | while (DWT_DEVICE_ID != id) |
| | | |
| | | SPIx_CS_GPIO->BRR = SPIx_CS; |
| | | delay_us(600); |
| | | SPIx_CS_GPIO->BSRR = SPIx_CS; |
| | | id = dwt_readdevid() ; |
| | | while (0xDECA0130!=id) |
| | | { |
| | | id = dwt_readdevid() ; |
| | | u8 iderror_count = 0; |
| | | id = dwt_readdevid() ; |
| | | if(iderror_count++>100) |
| | | { |
| | | printf("UWB芯片ID错误\r\n"); |
| | | break; |
| | | } |
| | | } |
| | | g_Resttimer=0; |
| | | dwt_setrxaftertxdelay(POLL_TX_TO_RESP_RX_DLY_UUS); //设置发送后开启接收,并设定延迟时间 |
| | | dwt_setrxtimeout(RESP_RX_TIMEOUT_UUS); |
| | | tag_succ_times = 0; |
| | | tx_poll_msg[BATTARY_IDX] = bat_percent; |
| | | //tx_poll_msg[BUTTON_IDX] = !READ_KEY0; |
| | | tx_poll_msg[SEQUENCE_IDX] = frame_seq_nb++; |
| | | |
| | | for(i=0;i<g_com_map[MAX_REPORT_ANC_NUM];i++) |
| | | { |
| | | /* Write frame data to DW1000 and prepare transmission. See NOTE 7 below. */ |
| | | tx_poll_msg[ANC_TYPE_IDX] = i; |
| | | |
| | | dwt_writetxdata(sizeof(tx_poll_msg), tx_poll_msg, 0);//将Poll包数据传给DW1000,将在开启发送时传出去 |
| | | dwt_writetxfctrl(sizeof(tx_poll_msg), 0);//设置超宽带发送数据长度 |
| | | |
| | | /* Start transmission, indicating that a response is expected so that reception is enabled automatically after the frame is sent and the delay |
| | | * set by dwt_setrxaftertxdelay() has elapsed. */ |
| | | result=dwt_starttx(DWT_START_TX_IMMEDIATE | DWT_RESPONSE_EXPECTED);//开启发送,发送完成后等待一段时间开启接收,等待时间在dwt_setrxaftertxdelay中设置 |
| | | start_poll = time32_incr; |
| | | /* 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)))//不断查询芯片状态直到成功接收或者发生错误 |
| | | { |
| | | status_reg = dwt_read32bitreg(SYS_STATUS_ID); |
| | | // if(time32_incr - start_poll>20) |
| | | // NVIC_SystemReset(); |
| | | // IdleTask(); |
| | | |
| | | }; |
| | | |
| | | /* Increment frame sequence number after transmission of the poll message (modulo 256). */ |
| | | if(status_reg==0xffffffff) |
| | | { |
| | | // NVIC_SystemReset(); |
| | | } |
| | | |
| | | if (status_reg & SYS_STATUS_RXFCG)//如果成功接收 |
| | | { |
| | | /* Clear good RX frame event and TX frame sent in the DW1000 status register. */ |
| | | dwt_write32bitreg(SYS_STATUS_ID, SYS_STATUS_RXFCG | SYS_STATUS_TXFRS);//清楚寄存器标志位 |
| | | |
| | | /* A frame has been received, read it into the local buffer. */ |
| | | frame_len = dwt_read32bitreg(RX_FINFO_ID) & RX_FINFO_RXFLEN_MASK; //获得接收到的数据长度 |
| | | |
| | | dwt_readrxdata(rx_buffer, frame_len, 0); //读取接收数据 |
| | | |
| | | |
| | | /* 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. */ |
| | | |
| | | if (rx_buffer[GROUP_ID_IDX] == group_id&&rx_buffer[MESSAGE_TYPE_IDX] == RESPONSE&&!memcmp(&rx_buffer[TAG_ID_IDX],&dev_id,4)) //判断接收到的数据是否是response数据 |
| | | { uint16_t anc_id_recv,current_count,rec_com_interval; |
| | | /* Retrieve poll transmission and response reception timestamp. */ |
| | | poll_tx_ts = get_tx_timestamp_u64(); //获得POLL发送时间T1 |
| | | resp_rx_ts = get_rx_timestamp_u64(); //获得RESPONSE接收时间T4 |
| | | |
| | | if(getsync_flag==0&&g_com_map[DEV_ROLE]) |
| | | { |
| | | getsync_flag=1; |
| | | memcpy(&sync_timer,&rx_buffer[ANCTIMEMS],2); |
| | | memcpy(&tmp_time,&rx_buffer[ANCTIMEUS],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; |
| | | } |
| | | memcpy(&hex_dist2, &rx_buffer[DIST_IDX], 4); |
| | | memcpy(&tx_final_msg[ANCHOR_ID_IDX], &rx_buffer[ANCHOR_ID_IDX], 4); |
| | | memcpy(&rec_com_interval,&rx_buffer[ANCSEND_INTERVAL], 2); |
| | | if(rec_com_interval>4&&rec_com_interval!=g_com_map[COM_INTERVAL]) |
| | | { |
| | | g_com_map[COM_INTERVAL]=rec_com_interval; |
| | | save_com_map_to_flash(); |
| | | delay_ms(100); |
| | | SCB->AIRCR = 0X05FA0000|(unsigned int)0x04; //软复位回到bootloader |
| | | } |
| | | /* 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;//计算final包发送时间,T5=T4+Treply2 |
| | | dwt_setdelayedtrxtime(final_tx_time);//设置final包发送时间T5 |
| | | |
| | | /* Final TX timestamp is the transmission time we programmed plus the TX antenna delay. */ |
| | | final_tx_ts = (((uint64_t)(final_tx_time & 0xFFFFFFFE)) << 8) + TX_ANT_DLY;//final包实际发送时间是计算时间加上发送天线delay |
| | | |
| | | /* Write all timestamps in the final message. See NOTE 10 below. */ |
| | | final_msg_set_ts(&tx_final_msg[FINAL_MSG_POLL_TX_TS_IDX], poll_tx_ts);//将T1,T4,T5写入发送数据 |
| | | final_msg_set_ts(&tx_final_msg[FINAL_MSG_RESP_RX_TS_IDX], resp_rx_ts); |
| | | final_msg_set_ts(&tx_final_msg[FINAL_MSG_FINAL_TX_TS_IDX], final_tx_ts); |
| | | |
| | | /* Write and send final message. See NOTE 7 below. */ |
| | | |
| | | dwt_writetxdata(sizeof(tx_final_msg), tx_final_msg, 0);//将发送数据写入DW1000 |
| | | dwt_writetxfctrl(sizeof(tx_final_msg), 0);//设定发送数据长度 |
| | | result=dwt_starttx(DWT_START_TX_DELAYED);//设定为延迟发送 |
| | | |
| | | ancsync_time=((sync_timer+0)*1000+tmp_time); |
| | | current_count=HAL_LPTIM_ReadCounter(&hlptim1); |
| | | // count_offset=sync_count-current_count-143; |
| | | // current_slottimes=(ancsync_time-10000)/(g_com_map[COM_INTERVAL]*1000); |
| | | nextpoll_delaytime=tyncpoll_time*1000+g_com_map[COM_INTERVAL]*1000-((ancsync_time-10000)%(g_com_map[COM_INTERVAL]*1000))-5150; |
| | | if(abs(ancsync_time-910000)<1000) |
| | | { |
| | | nextpoll_delaytime+=10000; |
| | | } |
| | | if(nextpoll_delaytime<2000) |
| | | { |
| | | nextpoll_delaytime+=g_com_map[COM_INTERVAL]*1000; |
| | | } |
| | | lastpoll_count= current_count+(nextpoll_delaytime)/LPTIMER_LSB; |
| | | if(lastpoll_count>LPTIMER_1S_COUNT) |
| | | lastpoll_count-=LPTIMER_1S_COUNT; |
| | | __HAL_LPTIM_COMPARE_SET(&hlptim1, lastpoll_count); |
| | | |
| | | // printf("ancsync_time: %u \r\n ",ancsync_time); |
| | | // printf("current_slottimes: %u ",current_slottimes); |
| | | // printf("nextpoll_delaytime: %u ",nextpoll_delaytime); |
| | | // printf("current_count: %u ",current_count); |
| | | // printf("lastpoll_count: %u",lastpoll_count); |
| | | |
| | | |
| | | tag_succ_times++; |
| | | |
| | | |
| | | memcpy(&anc_id_recv,&rx_buffer[ANCHOR_ID_IDX],2); |
| | | // g_Tagdist[anc_id_recv]= hex_dist; |
| | | // g_flag_Taggetdist[anc_id_recv]=0; |
| | | if(!g_com_map[MODBUS_MODE]) |
| | | { |
| | | usart_send[2] = 1;//正常模式 |
| | | usart_send[3] = 17;//数据段长度 |
| | | usart_send[4] = frame_seq_nb;//数据段长度 |
| | | memcpy(&usart_send[5],&dev_id,2); |
| | | memcpy(&usart_send[7],&rx_buffer[ANCHOR_ID_IDX],2); |
| | | |
| | | memcpy(&usart_send[9],&hex_dist2,4); |
| | | usart_send[13] = battary; |
| | | usart_send[14] = button; |
| | | checksum = Checksum_u16(&usart_send[2],17); |
| | | memcpy(&usart_send[19],&checksum,2); |
| | | // UART_PushFrame(usart_send,21); |
| | | } |
| | | // memcpy(&Modbus_HoldReg[anc_id_recv*2],&hex_dist,4); |
| | | /* Poll DW1000 until TX frame sent event set. See NOTE 8 below. */ |
| | | if(result==0) |
| | | {while (!(dwt_read32bitreg(SYS_STATUS_ID) & SYS_STATUS_TXFRS))//不断查询芯片状态直到发送完成 |
| | | { }; |
| | | } |
| | | /* Clear TXFRS event. */ |
| | | dwt_write32bitreg(SYS_STATUS_ID, SYS_STATUS_TXFRS);//清除标志位 |
| | | |
| | | /* Increment frame sequence number after transmission of the final message (modulo 256). */ |
| | | |
| | | random_delay_tim = 0; |
| | | } |
| | | else |
| | | { |
| | | random_delay_tim = DFT_RAND_DLY_TIM_MS; //如果通讯失败,将间隔时间增加5ms,避开因为多标签同时发送引起的冲突。 |
| | | } |
| | | } |
| | | else |
| | | { |
| | | /* Clear RX error events in the DW1000 status register. */ |
| | | dwt_write32bitreg(SYS_STATUS_ID, SYS_STATUS_ALL_RX_ERR); |
| | | random_delay_tim = DFT_RAND_DLY_TIM_MS; |
| | | } |
| | | // deca_sleep(10); |
| | | } |
| | | dwt_entersleep(); |
| | | // if(tag_succ_times<g_com_map[MIN_REPORT_ANC_NUM]) |
| | | // { |
| | | // //poll_timer +=time32_incr&0x7+3; |
| | | // } |
| | | //HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI); |
| | | /* Execute a delay between ranging exchanges. */ |
| | | |
| | | } |
| | | |
| | | |
| | | |