Hi there,

I want to build ss_twr_init, but I kept getting an error. I have followed the changes as shown in the pull requests, but I still kept getting the same error.
Error: unknown type name '__printf_tag_ptr'

Do you have any suggestions on how can I fix this?

Thank you

Hello there.

I was wondering if I could get help regarding the implementation of the ds_twr_init and ds_twr_resp accompanying the DW1000 API. I noticed that the ss_twr examples in this project are the same as in the DW1000 API corresponding ss_twr examples. So I replaced the ss with the ds code in the examples, successfully added the UART support for the responder as well since in the ds example the responder is the one calculating the distance. Now, the initiator seems to be working fine, I mean it transmits, but the responder's receiver times out without getting any poll messages and so it doesn't continue in to reading data from its buffer or sending a reply. I did my best to put any delay constants the same as in the DW1000 API examples.

I'm attaching the code files in case you'd like to take a closer look.
ds_twr_examples.zip

Thank you very much in advance.

Hi,
I am now trying to use Bluetooth to control dwm1001 to measure distance. I find out this example is based on the nRF5_SDK_14.2.0 example ble_app_hrs_freertos. Is there any way to use the battery service in ble_app_hrs_freertos together with this dwm1001-example?

I tried to merge both examples myself, but I always get an error code 0xDEADBEEF. Could you please give me some hint how to solve this?

Currently KEIL and SES projects are provided. A tool-agnostic build would be nice.
Usually for nRF5x projects Nordic provides a Makefile to this end.

The source file https://github.com/Decawave/dwm1001-examples/blob/master/deca_driver/port/port_platform.h contains the line

Taken from the Linux Kernel

Indeed, that section of port_platform.h appears to be a copy of https://github.com/torvalds/linux/blob/6f0d349d922ba44e4348a17a78ea51b7135965b1/include/linux/circ_buf.h

I believe that material, being part of the Linux kernel, is licensed under the GPL-2.0. That means any binary containing this material must be placed under the same licence. This is obviously deeply problematic for anyone producing a commercial binary using this driver.

Do you have a non-GPL licensed version of this file available?

Hi, I am using DWM1001 to try to run the example code. Once I enable NRF_LOG and NRF_LOG_BACKEND_UART in sdk_config.h, The program cannot run properly. After I disabled NRF_LOG and NRF_LOG_BACKEND_UART, everything goes all right.
Is this the problem of the module? I have tried also the examples in the Nordic nRF5_SDK_14.2.0. The problem is the same, I cannot read anything out from the UART, because Nordic examples are using NRF_LOG_INFO() to implement the UART.

This version seems to no longer be hosted at

http://developer.nordicsemi.com/nRF5_SDK/pieces/nRF_DeviceFamilyPack/

so KEIL uVision cannot complete the build easily. Any chance the project can be upgraded to a more recent version?

Hi,

I am trying a simple multi sided tag-anchor data exchange with distance. Problem is anchors dont know IDs of the tags. So tags need to broadcast their ID before responsing anchor’s polling for distance measurement. And anchors need to check if there is any coming message so they can save the tag’s ID and start polling to those IDs. I dont know why but anchors can get response to their polling but they can not get the other message.

void distance_uwb_run(target_device_info *target)
{
  uint16_t counter = 0;

  /* Activate reception immediately. */
  dwt_rxenable(DWT_START_RX_IMMEDIATE);

  do
  {
    counter++;
    /* Wait for reception, timeout or error interrupt flag*/
    while (!(to_int_flag|| er_int_flag));
    if(counter == 10)
    {
      break;
    }
  }while (!rx_int_flag);

  if(rx_int_flag)
  {
    uint32 frame_len;

    /* A frame has been received, read it into the local buffer. */
    frame_len = dwt_read32bitreg(RX_FINFO_ID) & RX_FINFO_RXFLEN_MASK;
    if (frame_len <= RX_BUFFER_LEN)
    {
      dwt_readrxdata(rx_hsr_msg, frame_len, 0);
    }
    if (data_header_check(rx_hsr_msg, HAND_SHAKE_CODE) == true)
    {	
      uint8_t temp_id[ID_LENGTH + 1] = {0};

      /*Reseting receive interrupt flag*/
      rx_int_flag = 0;

      memcpy(temp_id, rx_hsr_msg, ID_LENGTH);
      if(is_id_hand_shaked(temp_id) == false)
      {
        uint8_t hs_device_count = 0;
        int ret;

        /* Hand Shaked Device Count */
        hs_device_count = get_config(HAND_SHAKED_DEVICE_CONF);

        /* Hand Shaked Device ID */
        memcpy(tag[hs_device_count].id, temp_id, ID_LENGTH);
        
        printf("ID : %s, count: %d\r\n", temp_id, hs_device_count);
        /* Enter Time */
        //tag[hs_device_count].entry_time = get_time();

        /* Hand Shaked Device Count + 1 */
        hs_device_count++;
        set_config(HAND_SHAKED_DEVICE_CONF, hs_device_count);
      }
    }
  }
  if (to_int_flag || er_int_flag)
  {
    dwt_rxreset();
    /*Reseting interrupt flag*/
    to_int_flag = 0 ;
    er_int_flag = 0 ;
  }

  //static uint8_t temp_buf[12] = {0x41,0x88,0,0xca,0xde,'W','A','V','E',0xe0,0,0};

  /* Making ready Tx Buffer for distance polling */
  make_frame(DISTANCE_CODE, target->id, tx_dist_msg);
  
  dwt_writetxdata(sizeof(tx_dist_msg), tx_dist_msg, 0); /* Zero offset in TX buffer. */
  dwt_writetxfctrl(sizeof(tx_dist_msg), 0, 1); /* Zero offset in TX buffer, ranging. */
  dwt_starttx(DWT_START_TX_IMMEDIATE | DWT_RESPONSE_EXPECTED);

  counter = 0;
  do
  {
    counter++;
    if(counter >= 1000)
    {
      break;
    }
  }while (!(tx_ds_int_flag));

  if (tx_ds_int_flag)
  {
    /*Reseting tx interrupt flag*/
    tx_ds_int_flag = 0 ;
  }

  /* Wait for reception, timeout or error interrupt flag*/  
  while (!(rx_int_flag || to_int_flag|| er_int_flag));

  if (rx_int_flag)
  {		
    uint32 frame_len;
    uint8_t *device_id;

    /* A frame has been received, read it into the local buffer. */
    frame_len = dwt_read32bitreg(RX_FINFO_ID) & RX_FINFO_RXFLEN_MASK;
    if (frame_len <= RX_BUFFER_LEN)
    {
      dwt_readrxdata(rx_dist_msg, frame_len, 0);
      device_id = get_config_addr(ID_CONF);
    
      /* A frame has been received, read it into the local buffer. */
      frame_len = dwt_read32bitreg(RX_FINFO_ID) & RX_FINFO_RXFLEN_MASK;
      if (frame_len <= RX_BUFFER_LEN)
      {
        dwt_readrxdata(rx_dist_msg, frame_len, 0);
      }
      /* As the sequence number field of the frame is not relevant, it is cleared to simplify the validation of the frame. */
      if(data_header_check(rx_dist_msg, DISTANCE_CODE) == true)
      {	
        uint32 poll_tx_ts, resp_rx_ts, poll_rx_ts, resp_tx_ts;
        int32 rtd_init, rtd_resp;
        float clockOffsetRatio;
        uint8_t temp_id[ID_LENGTH + 1] = {0};

        /* Retrieve poll transmission and response reception timestamps. See NOTE 4 below. */
        poll_tx_ts = dwt_readtxtimestamplo32();
        resp_rx_ts = dwt_readrxtimestamplo32();

        /* Read carrier integrator value and calculate clock offset ratio. See NOTE 6 below. */
        clockOffsetRatio = dwt_readcarrierintegrator() * (FREQ_OFFSET_MULTIPLIER * HERTZ_TO_PPM_MULTIPLIER_CHAN_5 / 1.0e6) ;

        /* Get timestamps embedded in response message. */
        resp_msg_get_ts(&rx_dist_msg[RESP_MSG_POLL_RX_TS_IDX], &poll_rx_ts);
        resp_msg_get_ts(&rx_dist_msg[RESP_MSG_RESP_TX_TS_IDX], &resp_tx_ts);

        /* Compute time of flight and distance, using clock offset ratio to correct for differing local and remote clock rates */
        rtd_init = resp_rx_ts - poll_tx_ts;
        rtd_resp = resp_tx_ts - poll_rx_ts;

        tof = ((rtd_init - rtd_resp * (1.0f - clockOffsetRatio)) / 2.0f) * DWT_TIME_UNITS; // Specifying 1.0f and 2.0f are floats to clear warning 
        distance = tof * SPEED_OF_LIGHT;

        memcpy(temp_id, rx_dist_msg + ID_LENGTH, ID_LENGTH);
        printf("ID : %s, Distance : %f\r\n", temp_id, distance);
        target->distance = distance;

        /*Reseting receive interrupt flag*/
        rx_int_flag = 0;
      }
    }
  }
  if (to_int_flag || er_int_flag)
  {
    dwt_rxreset();
    /*Reseting interrupt flag*/
    to_int_flag = 0 ;
    er_int_flag = 0 ;
  }	
  if((timeot_counter % 5) == 0)
  {
    /* Reset RX to properly reinitialise LDE operation. */
    dwt_rxreset();
  }
  /* Execute a delay between ranging exchanges. */
  // deca_sleep(RNG_DELAY_MS);
}`

tag

`void distance_uwb_response(target_device_info *target)
{
  static uint8_t counter = 0;

  counter++;

  if((counter % 1) == 0) 
  {
/* Making ready Tx Buffer for hand shake polling */
make_frame(HAND_SHAKE_CODE, NULL, tx_hs_msg);

dwt_write32bitreg(SYS_STATUS_ID, SYS_STATUS_TXFRS);
dwt_writetxdata(sizeof(tx_hs_msg), tx_hs_msg, 0); /* Zero offset in TX buffer. */
dwt_writetxfctrl(sizeof(tx_hs_msg), 0, 1); /* Zero offset in TX buffer, ranging. */

/* 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. */
dwt_starttx(DWT_START_TX_IMMEDIATE);

if (tx_int_flag)
{
  /*Reseting tx interrupt flag*/
  tx_int_flag = 0 ;
}
  }

  /* Activate reception immediately. */
  dwt_rxenable(DWT_START_RX_IMMEDIATE);

  /* Wait for reception, timeout or error interrupt flag*/
  while (!(rx_int_flag || to_int_flag|| er_int_flag));

  if (rx_int_flag)
  {
uint32 frame_len;

/* Clear good RX frame event in the DW1000 status register. */
dwt_write32bitreg(SYS_STATUS_ID, SYS_STATUS_RXFCG);

/* 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_dist_msg, frame_len, 0);
}
if (data_header_check(rx_dist_msg, DISTANCE_CODE) == true)
{
  uint32 resp_tx_time;
  int ret;

  /* Making ready Tx Buffer for command send */
  make_frame(DISTANCE_CODE, target->id, tx_dist_msg);

  /* Retrieve poll reception timestamp. */
  poll_rx_ts = get_rx_timestamp_u64();

  /* Compute final message transmission time. See NOTE 7 below. */
  resp_tx_time = (poll_rx_ts + (POLL_RX_TO_RESP_TX_DLY_UUS * UUS_TO_DWT_TIME)) >> 8;
  dwt_setdelayedtrxtime(resp_tx_time);

  /* Response TX timestamp is the transmission time we programmed plus the antenna delay. */
  resp_tx_ts = (((uint64)(resp_tx_time & 0xFFFFFFFEUL)) << 8) + TX_ANT_DLY;

  /* Write all timestamps in the final message. See NOTE 8 below. */
  resp_msg_set_ts(&tx_dist_msg[RESP_MSG_POLL_RX_TS_IDX], poll_rx_ts);
  resp_msg_set_ts(&tx_dist_msg[RESP_MSG_RESP_TX_TS_IDX], resp_tx_ts);

  /* Write and send the response message */
  dwt_writetxdata(sizeof(tx_dist_msg), tx_dist_msg, 0); /* Zero offset in TX buffer. See Note 5 below.*/
  dwt_writetxfctrl(sizeof(tx_dist_msg), 0, 1); /* Zero offset in TX buffer, ranging. */
  ret = dwt_starttx(DWT_START_TX_DELAYED);

  //ret = dwt_starttx(DWT_START_TX_IMMEDIATE);

  /* If dwt_starttx() returns an error, abandon this ranging exchange and proceed to the next one. */
  if (ret == DWT_SUCCESS)
  {
    /*Waiting for transmission success flag*/
    while (!(tx_int_flag))
    {};

    if (tx_int_flag)
    {
      /*Reseting tx interrupt flag*/
      tx_int_flag = 0 ;
    }
  }
  else
  {
    dwt_rxreset();
  }
  /*Reseting receive interrupt flag*/
  rx_int_flag = 0; 
}
  }
  if (to_int_flag || er_int_flag)
  {
/* Reset RX to properly reinitialise LDE operation. */
dwt_rxreset();

/*Reseting interrupt flag*/
to_int_flag = 0 ;
er_int_flag = 0 ;
  }
}`

Hi, we used dwm1001 for tag, but i can not reduce the consumption.
Currently, my consumption is up to 5ma after i set mcu and dw1000 to sleep.

Any one can supply a example for deep sleep?

The code compiles but i am getting some linker error. The log is bellow:

2> Generating linker script 'ss_twr_init.ld'�[0m
2> Linking ss_twr_init.elf�[0m
2> /usr/share/segger_embedded_studio_for_arm_6.22a/gcc/arm-none-eabi/bin/ld: /usr/share/segger_embedded_studio_for_arm_6.22a/lib/libc_v7em_fpv4_sp_d16_hard_t_le_eabi_balanced.a(fileops.o): in function `putchar':�[0m
2> fileops.c:(.text.libc.putchar+0x0): undefined reference to `stdout'�[0m
2> /usr/share/segger_embedded_studio_for_arm_6.22a/gcc/arm-none-eabi/bin/ld: fileops.c:(.text.libc.putchar+0x4): undefined reference to `stdout'�[0m
2> /usr/share/segger_embedded_studio_for_arm_6.22a/gcc/arm-none-eabi/bin/ld: /usr/share/segger_embedded_studio_for_arm_6.22a/lib/libc_v7em_fpv4_sp_d16_hard_t_le_eabi_balanced.a(fileops.o): in function `puts':�[0m
2> fileops.c:(.text.libc.puts+0x2): undefined reference to `stdout'�[0m
2> /usr/share/segger_embedded_studio_for_arm_6.22a/gcc/arm-none-eabi/bin/ld: fileops.c:(.text.libc.puts+0x6): undefined reference to `stdout'�[0m
2> /usr/share/segger_embedded_studio_for_arm_6.22a/gcc/arm-none-eabi/bin/ld: fileops.c:(.text.libc.puts+0x18): undefined reference to `__SEGGER_RTL_X_file_write'�[0m
2> /usr/share/segger_embedded_studio_for_arm_6.22a/gcc/arm-none-eabi/bin/ld: /usr/share/segger_embedded_studio_for_arm_6.22a/lib/libc_v7em_fpv4_sp_d16_hard_t_le_eabi_balanced.a(fileops.o): in function `fwrite':�[0m
2> fileops.c:(.text.libc.fwrite+0xc): undefined reference to `__SEGGER_RTL_X_file_stat'�[0m
2> /usr/share/segger_embedded_studio_for_arm_6.22a/gcc/arm-none-eabi/bin/ld: fileops.c:(.text.libc.fwrite+0x24): undefined reference to `__SEGGER_RTL_X_file_write'�[0m
2> /usr/share/segger_embedded_studio_for_arm_6.22a/gcc/arm-none-eabi/bin/ld: /usr/share/segger_embedded_studio_for_arm_6.22a/lib/libc_v7em_fpv4_sp_d16_hard_t_le_eabi_balanced.a(prinops.o): in function `vfprintf':�[0m
2> prinops.c:(.text.libc.vfprintf+0xe): undefined reference to `__SEGGER_RTL_X_file_bufsize'�[0m
2> /usr/share/segger_embedded_studio_for_arm_6.22a/gcc/arm-none-eabi/bin/ld: /usr/share/segger_embedded_studio_for_arm_6.22a/lib/libc_v7em_fpv4_sp_d16_hard_t_le_eabi_balanced.a(prinops.o): in function `printf':�[0m
2> prinops.c:(.text.libc.printf+0xe): undefined reference to `stdout'�[0m
2> /usr/share/segger_embedded_studio_for_arm_6.22a/gcc/arm-none-eabi/bin/ld: prinops.c:(.text.libc.printf+0x12): undefined reference to `stdout'�[0m
Build failed�[0m

Can anyone help-me?

O downloaded the most recent version of segger studio and installed the necessary packages

SEGGER Embedded Studio for ARM
Release 6.22a Build 2022032300.49847
Linux x64

Pretty sure the bound check here is reversed.

int dwt_setlocaldataptr(unsigned int index)
{
// Check the index is within the array bounds
if (DWT_NUM_DW_DEV > index) // return error if index outside the array bounds
{
return DWT_ERROR ;
}

pdw1000local = &dw1000local[index];

return DWT_SUCCESS ;

}

Hi, I would like to have the code on the SS_TWR_Resp example take in and print out over uart, and I can monitor that over puTTy or something similar. So far, it seems like the init example can do this, but I can't find a way to get the response example to work the same way. Any Help would be appreciated.
I am using the SES example, if that helps too.

Hi

I just bought 2 DWM1001-DEV, one tag and one anchor, they work perfectly fine with the provided example trough UART. I was wondering if anyone know how to filter multiples anchors data in one tag.
Will the data from all anchors be transmitted into one tag using the example project?

Thanks in advance

Do any of these examples demonstrate how to interface either a tag or a link via USB from a PC?

Guys, I think there is a mistake in your code since you define the speed of light as 299702547 m/sec but it is actually 299792458 m/sec. ... That's a bit over 90Km difference. Did you actually intend to put the speed of light or you have changed it a bit to compensate for something and didn't explain why in the code's comments?

https://en.wikipedia.org/wiki/Speed_of_light

Do you have a BLE Example for this SDK as well?

Hello,
I have successfully built ss_twr_resp. I am getting error while building ss_twr_init. I have send the log here , there is controversy in putchar.
Building ‘ss_twr_init’ from solution ‘ss_twr_init’ in configuration ‘nrf52832_xxaa’
Compiling ‘retarget.c’
"C:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 4.16/gcc/arm-none-eabi/bin/cc1" -fmessage-length=0 -fno-diagnostics-show-caret -mcpu=cortex-m4 -mlittle-endian -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mthumb -mtp=soft -munaligned-access -nostdinc "-isystemC:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 4.16/include" "-isystemC:/Users/Admin/AppData/Local/SEGGER/SEGGER Embedded Studio/v3/packages/include" "-IC:/Users/Admin/AppData/Local/SEGGER/SEGGER Embedded Studio/v3/packages/nRF/CMSIS/Device/Include" "-IC:/Users/Admin/AppData/Local/SEGGER/SEGGER Embedded Studio/v3/packages/CMSIS_5/CMSIS/Core/Include" -I../../../nRF5_SDK_14.2.0/components/device -I../UART -I../config -I../../../nRF5_SDK_14.2.0/components -I../../../nRF5_SDK_14.2.0/components/boards -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/clock -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/common -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/delay -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/gpiote -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/hal -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/nrf_soc_nosd -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/spi_master -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/uart -I../../../nRF5_SDK_14.2.0/components/libraries/atomic -I../../../nRF5_SDK_14.2.0/components/libraries/balloc -I../../../nRF5_SDK_14.2.0/components/libraries/bsp -I../../../nRF5_SDK_14.2.0/components/libraries/button -I../../../nRF5_SDK_14.2.0/components/libraries/fifo -I../../../nRF5_SDK_14.2.0/components/libraries/experimental_log -I../../../nRF5_SDK_14.2.0/components/libraries/experimental_log/src -I../../../nRF5_SDK_14.2.0/components/libraries/experimental_memobj -I../../../nRF5_SDK_14.2.0/components/libraries/experimental_section_vars -I../../../nRF5_SDK_14.2.0/components/libraries/scheduler -I../../../nRF5_SDK_14.2.0/components/libraries/strerror -I../../../nRF5_SDK_14.2.0/components/libraries/timer -I../../../nRF5_SDK_14.2.0/components/libraries/util -I../../../nRF5_SDK_14.2.0/components/libraries/uart -I../../../nRF5_SDK_14.2.0/components/toolchain -I../../../deca_driver -I../../../deca_driver/port -I../../../nRF5_SDK_14.2.0/external/fprintf -I../../../nRF5_SDK_14.2.0/external/segger_rtt -I../../../nRF5_SDK_14.2.0/external/freertos/ -I../../../nRF5_SDK_14.2.0/external/freertos/source -I../../../nRF5_SDK_14.2.0/external/freertos/config -I../../../nRF5_SDK_14.2.0/external/freertos/source/include -I../../../nRF5_SDK_14.2.0/external/freertos/portable/ARM/nrf52 -I../../../nRF5_SDK_14.2.0/external/freertos/portable/CMSIS/nrf52 -I../../../nRF5_SDK_14.2.0/external/freertos/source/portable -I../../../boards -I../../.. -D__SIZEOF_WCHAR_T=4 -D__ARM_ARCH_7EM_ -D__SES_ARM -D__ARM_ARCH_FPV4_SP_D16__ -D__SES_VERSION=41600 -DBOARD_DW1001_DEV -DBSP_SIMPLE -DCONFIG_GPIO_AS_PINRESET -DFLOAT_ABI_HARD -DNRF52 -DNRF52832_XXAA -DNRF52_PAN_74 -DSWI_DISABLE0 -MD "E:/Projects/RTLS/nRF/GitCodes/dwm1001-examples/dwm1001-examples/examples/ss_twr_init/SES/Output/ss_twr_init nrf52832_xxaa/Obj/retarget.d" -MQ "Output/ss_twr_init nrf52832_xxaa/Obj/retarget.o" -quiet -std=gnu99 -g2 -gpubnames -fomit-frame-pointer -fno-dwarf2-cfi-asm -fno-builtin -ffunction-sections -fdata-sections -fshort-enums -fno-common E:\Projects\RTLS\nRF\GitCodes\dwm1001-examples\dwm1001-examples\nRF5_SDK_14.2.0\components\libraries\uart\retarget.c -o "E:/Projects/RTLS/nRF/GitCodes/dwm1001-examples/dwm1001-examples/examples/ss_twr_init/SES/Output/ss_twr_init nrf52832_xxaa/Obj/retarget.asm"
conflicting types for 'putchar'
retarget.c
previous declaration of 'putchar' was here
Compiling ‘nrf_log_backend_rtt.c’
"C:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 4.16/gcc/arm-none-eabi/bin/cc1" -fmessage-length=0 -fno-diagnostics-show-caret -mcpu=cortex-m4 -mlittle-endian -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mthumb -mtp=soft -munaligned-access -nostdinc "-isystemC:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 4.16/include" "-isystemC:/Users/Admin/AppData/Local/SEGGER/SEGGER Embedded Studio/v3/packages/include" "-IC:/Users/Admin/AppData/Local/SEGGER/SEGGER Embedded Studio/v3/packages/nRF/CMSIS/Device/Include" "-IC:/Users/Admin/AppData/Local/SEGGER/SEGGER Embedded Studio/v3/packages/CMSIS_5/CMSIS/Core/Include" -I../../../nRF5_SDK_14.2.0/components/device -I../UART -I../config -I../../../nRF5_SDK_14.2.0/components -I../../../nRF5_SDK_14.2.0/components/boards -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/clock -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/common -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/delay -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/gpiote -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/hal -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/nrf_soc_nosd -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/spi_master -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/uart -I../../../nRF5_SDK_14.2.0/components/libraries/atomic -I../../../nRF5_SDK_14.2.0/components/libraries/balloc -I../../../nRF5_SDK_14.2.0/components/libraries/bsp -I../../../nRF5_SDK_14.2.0/components/libraries/button -I../../../nRF5_SDK_14.2.0/components/libraries/fifo -I../../../nRF5_SDK_14.2.0/components/libraries/experimental_log -I../../../nRF5_SDK_14.2.0/components/libraries/experimental_log/src -I../../../nRF5_SDK_14.2.0/components/libraries/experimental_memobj -I../../../nRF5_SDK_14.2.0/components/libraries/experimental_section_vars -I../../../nRF5_SDK_14.2.0/components/libraries/scheduler -I../../../nRF5_SDK_14.2.0/components/libraries/strerror -I../../../nRF5_SDK_14.2.0/components/libraries/timer -I../../../nRF5_SDK_14.2.0/components/libraries/util -I../../../nRF5_SDK_14.2.0/components/libraries/uart -I../../../nRF5_SDK_14.2.0/components/toolchain -I../../../deca_driver -I../../../deca_driver/port -I../../../nRF5_SDK_14.2.0/external/fprintf -I../../../nRF5_SDK_14.2.0/external/segger_rtt -I../../../nRF5_SDK_14.2.0/external/freertos/ -I../../../nRF5_SDK_14.2.0/external/freertos/source -I../../../nRF5_SDK_14.2.0/external/freertos/config -I../../../nRF5_SDK_14.2.0/external/freertos/source/include -I../../../nRF5_SDK_14.2.0/external/freertos/portable/ARM/nrf52 -I../../../nRF5_SDK_14.2.0/external/freertos/portable/CMSIS/nrf52 -I../../../nRF5_SDK_14.2.0/external/freertos/source/portable -I../../../boards -I../../.. -D__SIZEOF_WCHAR_T=4 -D__ARM_ARCH_7EM -D__SES_ARM -D__ARM_ARCH_FPV4_SP_D16 -D__SES_VERSION=41600 -DBOARD_DW1001_DEV -DBSP_SIMPLE -DCONFIG_GPIO_AS_PINRESET -DFLOAT_ABI_HARD -DNRF52 -DNRF52832_XXAA -DNRF52_PAN_74 -DSWI_DISABLE0 -MD "E:/Projects/RTLS/nRF/GitCodes/dwm1001-examples/dwm1001-examples/examples/ss_twr_init/SES/Output/ss_twr_init nrf52832_xxaa/Obj/nrf_log_backend_rtt.d" -MQ "Output/ss_twr_init nrf52832_xxaa/Obj/nrf_log_backend_rtt.o" -quiet -std=gnu99 -g2 -gpubnames -fomit-frame-pointer -fno-dwarf2-cfi-asm -fno-builtin -ffunction-sections -fdata-sections -fshort-enums -fno-common E:\Projects\RTLS\nRF\GitCodes\dwm1001-examples\dwm1001-examples\nRF5_SDK_14.2.0\components\libraries\experimental_log\src\nrf_log_backend_rtt.c -o "E:/Projects/RTLS/nRF/GitCodes/dwm1001-examples/dwm1001-examples/examples/ss_twr_init/SES/Output/ss_twr_init nrf52832_xxaa/Obj/nrf_log_backend_rtt.asm"
Compiling ‘nrf_log_backend_serial.c’
"C:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 4.16/gcc/arm-none-eabi/bin/cc1" -fmessage-length=0 -fno-diagnostics-show-caret -mcpu=cortex-m4 -mlittle-endian -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mthumb -mtp=soft -munaligned-access -nostdinc "-isystemC:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 4.16/include" "-isystemC:/Users/Admin/AppData/Local/SEGGER/SEGGER Embedded Studio/v3/packages/include" "-IC:/Users/Admin/AppData/Local/SEGGER/SEGGER Embedded Studio/v3/packages/nRF/CMSIS/Device/Include" "-IC:/Users/Admin/AppData/Local/SEGGER/SEGGER Embedded Studio/v3/packages/CMSIS_5/CMSIS/Core/Include" -I../../../nRF5_SDK_14.2.0/components/device -I../UART -I../config -I../../../nRF5_SDK_14.2.0/components -I../../../nRF5_SDK_14.2.0/components/boards -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/clock -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/common -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/delay -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/gpiote -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/hal -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/nrf_soc_nosd -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/spi_master -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/uart -I../../../nRF5_SDK_14.2.0/components/libraries/atomic -I../../../nRF5_SDK_14.2.0/components/libraries/balloc -I../../../nRF5_SDK_14.2.0/components/libraries/bsp -I../../../nRF5_SDK_14.2.0/components/libraries/button -I../../../nRF5_SDK_14.2.0/components/libraries/fifo -I../../../nRF5_SDK_14.2.0/components/libraries/experimental_log -I../../../nRF5_SDK_14.2.0/components/libraries/experimental_log/src -I../../../nRF5_SDK_14.2.0/components/libraries/experimental_memobj -I../../../nRF5_SDK_14.2.0/components/libraries/experimental_section_vars -I../../../nRF5_SDK_14.2.0/components/libraries/scheduler -I../../../nRF5_SDK_14.2.0/components/libraries/strerror -I../../../nRF5_SDK_14.2.0/components/libraries/timer -I../../../nRF5_SDK_14.2.0/components/libraries/util -I../../../nRF5_SDK_14.2.0/components/libraries/uart -I../../../nRF5_SDK_14.2.0/components/toolchain -I../../../deca_driver -I../../../deca_driver/port -I../../../nRF5_SDK_14.2.0/external/fprintf -I../../../nRF5_SDK_14.2.0/external/segger_rtt -I../../../nRF5_SDK_14.2.0/external/freertos/ -I../../../nRF5_SDK_14.2.0/external/freertos/source -I../../../nRF5_SDK_14.2.0/external/freertos/config -I../../../nRF5_SDK_14.2.0/external/freertos/source/include -I../../../nRF5_SDK_14.2.0/external/freertos/portable/ARM/nrf52 -I../../../nRF5_SDK_14.2.0/external/freertos/portable/CMSIS/nrf52 -I../../../nRF5_SDK_14.2.0/external/freertos/source/portable -I../../../boards -I../../.. -D__SIZEOF_WCHAR_T=4 -D__ARM_ARCH_7EM__ -D__SES_ARM -D__ARM_ARCH_FPV4_SP_D16__ -D__SES_VERSION=41600 -DBOARD_DW1001_DEV -DBSP_SIMPLE -DCONFIG_GPIO_AS_PINRESET -DFLOAT_ABI_HARD -DNRF52 -DNRF52832_XXAA -DNRF52_PAN_74 -DSWI_DISABLE0 -MD "E:/Projects/RTLS/nRF/GitCodes/dwm1001-examples/dwm1001-examples/examples/ss_twr_init/SES/Output/ss_twr_init nrf52832_xxaa/Obj/nrf_log_backend_serial.d" -MQ "Output/ss_twr_init nrf52832_xxaa/Obj/nrf_log_backend_serial.o" -quiet -std=gnu99 -g2 -gpubnames -fomit-frame-pointer -fno-dwarf2-cfi-asm -fno-builtin -ffunction-sections -fdata-sections -fshort-enums -fno-common E:\Projects\RTLS\nRF\GitCodes\dwm1001-examples\dwm1001-examples\nRF5_SDK_14.2.0\components\libraries\experimental_log\src\nrf_log_backend_serial.c -o "E:/Projects/RTLS/nRF/GitCodes/dwm1001-examples/dwm1001-examples/examples/ss_twr_init/SES/Output/ss_twr_init nrf52832_xxaa/Obj/nrf_log_backend_serial.asm"
Compiling ‘nrf_log_backend_uart.c’
"C:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 4.16/gcc/arm-none-eabi/bin/cc1" -fmessage-length=0 -fno-diagnostics-show-caret -mcpu=cortex-m4 -mlittle-endian -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mthumb -mtp=soft -munaligned-access -nostdinc "-isystemC:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 4.16/include" "-isystemC:/Users/Admin/AppData/Local/SEGGER/SEGGER Embedded Studio/v3/packages/include" "-IC:/Users/Admin/AppData/Local/SEGGER/SEGGER Embedded Studio/v3/packages/nRF/CMSIS/Device/Include" "-IC:/Users/Admin/AppData/Local/SEGGER/SEGGER Embedded Studio/v3/packages/CMSIS_5/CMSIS/Core/Include" -I../../../nRF5_SDK_14.2.0/components/device -I../UART -I../config -I../../../nRF5_SDK_14.2.0/components -I../../../nRF5_SDK_14.2.0/components/boards -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/clock -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/common -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/delay -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/gpiote -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/hal -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/nrf_soc_nosd -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/spi_master -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/uart -I../../../nRF5_SDK_14.2.0/components/libraries/atomic -I../../../nRF5_SDK_14.2.0/components/libraries/balloc -I../../../nRF5_SDK_14.2.0/components/libraries/bsp -I../../../nRF5_SDK_14.2.0/components/libraries/button -I../../../nRF5_SDK_14.2.0/components/libraries/fifo -I../../../nRF5_SDK_14.2.0/components/libraries/experimental_log -I../../../nRF5_SDK_14.2.0/components/libraries/experimental_log/src -I../../../nRF5_SDK_14.2.0/components/libraries/experimental_memobj -I../../../nRF5_SDK_14.2.0/components/libraries/experimental_section_vars -I../../../nRF5_SDK_14.2.0/components/libraries/scheduler -I../../../nRF5_SDK_14.2.0/components/libraries/strerror -I../../../nRF5_SDK_14.2.0/components/libraries/timer -I../../../nRF5_SDK_14.2.0/components/libraries/util -I../../../nRF5_SDK_14.2.0/components/libraries/uart -I../../../nRF5_SDK_14.2.0/components/toolchain -I../../../deca_driver -I../../../deca_driver/port -I../../../nRF5_SDK_14.2.0/external/fprintf -I../../../nRF5_SDK_14.2.0/external/segger_rtt -I../../../nRF5_SDK_14.2.0/external/freertos/ -I../../../nRF5_SDK_14.2.0/external/freertos/source -I../../../nRF5_SDK_14.2.0/external/freertos/config -I../../../nRF5_SDK_14.2.0/external/freertos/source/include -I../../../nRF5_SDK_14.2.0/external/freertos/portable/ARM/nrf52 -I../../../nRF5_SDK_14.2.0/external/freertos/portable/CMSIS/nrf52 -I../../../nRF5_SDK_14.2.0/external/freertos/source/portable -I../../../boards -I../../.. -D__SIZEOF_WCHAR_T=4 -D__ARM_ARCH_7EM__ -D__SES_ARM -D__ARM_ARCH_FPV4_SP_D16__ -D__SES_VERSION=41600 -DBOARD_DW1001_DEV -DBSP_SIMPLE -DCONFIG_GPIO_AS_PINRESET -DFLOAT_ABI_HARD -DNRF52 -DNRF52832_XXAA -DNRF52_PAN_74 -DSWI_DISABLE0 -MD "E:/Projects/RTLS/nRF/GitCodes/dwm1001-examples/dwm1001-examples/examples/ss_twr_init/SES/Output/ss_twr_init nrf52832_xxaa/Obj/nrf_log_backend_uart.d" -MQ "Output/ss_twr_init nrf52832_xxaa/Obj/nrf_log_backend_uart.o" -quiet -std=gnu99 -g2 -gpubnames -fomit-frame-pointer -fno-dwarf2-cfi-asm -fno-builtin -ffunction-sections -fdata-sections -fshort-enums -fno-common E:\Projects\RTLS\nRF\GitCodes\dwm1001-examples\dwm1001-examples\nRF5_SDK_14.2.0\components\libraries\experimental_log\src\nrf_log_backend_uart.c -o "E:/Projects/RTLS/nRF/GitCodes/dwm1001-examples/dwm1001-examples/examples/ss_twr_init/SES/Output/ss_twr_init nrf52832_xxaa/Obj/nrf_log_backend_uart.asm"
Build failed

Kindly suggest

Thanks
Asmita

https://github.com/Decawave/dwm1001-examples/blob/master/deca_driver/deca_device.c#L2502

In this line, it looks like setting 1 to bit8 and bit9 to PMSC/PMSC_CTRL0. But these bits are reserved according to the user manual. bit8 is 0 and bit9 is 1.

Is there anything missed here?

Am I correct that this example computes the round trip time of flight and distance, and it should therefore be halved to get the correct distance between nodes? Thanks.

Hi Decawave team
I meet a problem that I have not the source code to work with the phone app DRTLS_Manager_R2.apk,would you please give me some sugguestion?
thanks

Building ‘ss_twr_init’ from solution ‘ss_twr_init’ in configuration ‘nrf52832_xxaa’
2> Checking ‘thumb_crt0.s’
2> Output/nrf52832_xxaa/Obj/ss_twr_init/thumb_crt0.o does not exist.
2> Assembling ‘thumb_crt0.s’
2> "C:/Program Files (x86)/GNU Tools ARM Embedded/5.4 2016q3/bin/cc1" -fmessage-length=0 -fno-diagnostics-show-caret -std=gnu99 -E -march=armv7e-m -mlittle-endian -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mthumb -nostdinc "-isystemC:/Program Files/SEGGER/SEGGER Embedded Studio for ARM 5.60a/include" "-IC:/Users/NPStudent/AppData/Local/SEGGER/SEGGER Embedded Studio/v3/packages/nRF/CMSIS/Device/Include" "-IC:/Users/NPStudent/AppData/Local/SEGGER/SEGGER Embedded Studio/v3/packages/CMSIS_5/CMSIS/Core/Include" -I../../../nRF5_SDK_14.2.0/components/device -I../UART -I../config -I../../../nRF5_SDK_14.2.0/components -I../../../nRF5_SDK_14.2.0/components/boards -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/clock -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/common -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/delay -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/gpiote -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/hal -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/nrf_soc_nosd -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/spi_master -I../../../nRF5_SDK_14.2.0/components/drivers_nrf/uart -I../../../nRF5_SDK_14.2.0/components/libraries/atomic -I../../../nRF5_SDK_14.2.0/components/libraries/balloc -I../../../nRF5_SDK_14.2.0/components/libraries/bsp -I../../../nRF5_SDK_14.2.0/components/libraries/button -I../../../nRF5_SDK_14.2.0/components/libraries/fifo -I../../../nRF5_SDK_14.2.0/components/libraries/experimental_log -I../../../nRF5_SDK_14.2.0/components/libraries/experimental_log/src -I../../../nRF5_SDK_14.2.0/components/libraries/experimental_memobj -I../../../nRF5_SDK_14.2.0/components/libraries/experimental_section_vars -I../../../nRF5_SDK_14.2.0/components/libraries/scheduler -I../../../nRF5_SDK_14.2.0/components/libraries/strerror -I../../../nRF5_SDK_14.2.0/components/libraries/timer -I../../../nRF5_SDK_14.2.0/components/libraries/util -I../../../nRF5_SDK_14.2.0/components/libraries/uart -I../../../nRF5_SDK_14.2.0/components/toolchain -I../../../deca_driver -I../../../deca_driver/port -I../../../nRF5_SDK_14.2.0/external/fprintf -I../../../nRF5_SDK_14.2.0/external/segger_rtt -I../../../nRF5_SDK_14.2.0/external/freertos/ -I../../../nRF5_SDK_14.2.0/external/freertos/source -I../../../nRF5_SDK_14.2.0/external/freertos/config -I../../../nRF5_SDK_14.2.0/external/freertos/source/include -I../../../nRF5_SDK_14.2.0/external/freertos/portable/ARM/nrf52 -I../../../nRF5_SDK_14.2.0/external/freertos/portable/CMSIS/nrf52 -I../../../nRF5_SDK_14.2.0/external/freertos/source/portable -I../../../boards -I../../.. -D__SIZEOF_WCHAR_T=4 -D__ARM_ARCH_7EM__ -D__SES_ARM -D__ARM_ARCH_FPV4_SP_D16__ -D__HEAP_SIZE__=1024 -D__SES_VERSION=56001 -D__GNU_LINKER -DBOARD_DW1001_DEV -DBSP_SIMPLE -DCONFIG_GPIO_AS_PINRESET -DFLOAT_ABI_HARD -DNRF52 -DNRF52832_XXAA -DNRF52_PAN_74 -DSWI_DISABLE0 -MD C:/Users/NPStudent/Desktop/dwm1001-examples-master/dwm1001-examples-master/examples/ss_twr_init/SES/Output/nrf52832_xxaa/Obj/ss_twr_init/thumb_crt0.d -MQ Output/nrf52832_xxaa/Obj/ss_twr_init/thumb_crt0.o -quiet -lang-asm C:\Users\NPStudent\Desktop\dwm1001-examples-master\dwm1001-examples-master\examples\ss_twr_init\SES\RTE\thumb_crt0.s -o C:/Users/NPStudent/Desktop/dwm1001-examples-master/dwm1001-examples-master/examples/ss_twr_init/SES/Output/nrf52832_xxaa/Obj/ss_twr_init/thumb_crt0_PP.s
2> Error starting process C:/Program Files (x86)/GNU Tools ARM Embedded/5.4 2016q3/bin/cc1
Build failed

Hi, I'm starting to learn how to develop with the Decawave board. I'm using GNU_GCC and SDK v16 of nRF Boards.

I would like to ask two things, first of all:

Is Uart.h lib really required? I'm currently using nrf_log.h and I dont want to lose the access to ERROR Reports this library provides me.

Second question:

Is FreeRTOS really required? and when you guys are going to update the examples repository with GNU_GCC and SDKv16 examples?

Thank you very much

Hi sir

I'm new to this field and i want to make dw3000 work as an anchor and tag ..??
please can you suggest me how can i make them work..??

Hoping for your help :-(

I copy simple TX/RX code to cc2520,it build ok,but RX recv notiong by tx. print RX's statues_reg always is 0x00800002.
hope anybody resp ,thanks!

The ss_twr_init and the resp node work is not stable, sometimes can get the result, then need to reset, or can't receive.
I read the codes, i found that, in the project, the IRQ of DW1000 is not used anymore, i think this should be added later.

Hello there!

We are very interested in trying out those examples on our DWM1001-DEV boards (we got the MDEK1001 kit). We know that any change will erase the RTLS stack delivered with MDEK but this is what we need to do in order to take advantage of the DW1000 API, send our own messages, get timestamps, and generally build from there.

But, because we seriously are newbies, we will need all the help there is to guide us through reprogramming the boards and at least trying and testing the examples you provide.

Thank you!

hi
Is it possible that porting nrf52832 with nrf82840?

I would like to use GPIO10 for an extra LED but I can't set it high to light the led.
Is there any issue in the module in this pin?
I have tested all pins and The only which fails are GPIO9, GPIO10 and GPIO3. Maybe there is something activated in GPIO9 and GPIO10 related with the NFC.