IWR1443BOOST: IWR1443+DCA1000: wrong number of ADC samples

ZIHENG LI

Part Number: IWR1443BOOST

Hey all,

I'm having trouble reading the adc_data.bin with the MATLAB code provided in the user guide: mmwave Radar Device ADC Raw Data Capture. Here's the MATLAB code I run which is a direct copy from the user guide, section 9.1:

%%% This script is used to read the binary file produced by the DCA1000
%%% and Mmwave Studio
%%% Command to run in Matlab GUI - readDCA1000('<ADC capture bin file>')
function [retVal] = readDCA1000(fileName)
%% global variables
% change based on sensor config
numADCBits = 16; % number of ADC bits per sample
numLanes = 4; % do not change. number of lanes is always 4 even if only 1 lane is used. unused lanes
isReal = 0; % set to 1 if real only data, 0 if complex dataare populated with 0 %% read file and convert to signed number

% read .bin file
fid = fopen(fileName,'r');
% DCA1000 should read in two's complement data
adcData = fread(fid, 'int16');
% if 12 or 14 bits ADC per sample compensate for sign extensionnumLanes
if numADCBits ~= 16
l_max = 2^(numADCBits-1)-1;
adcData(adcData > l_max) = adcData(adcData > l_max) - 2^numADCBits;
end
fclose(fid);

%% organize data by LVDS lane
% for real only data
if isReal
    % reshape data based on one samples per LVDS lane
    adcData = reshape(adcData, numLanes, []);
    %for complex data
else
    % reshape and combine real and imaginary parts of complex number
    adcData = reshape(adcData, numLanes*2, []);
    adcData = adcData([1,2,3,4],:) + sqrt(-1)*adcData([5,6,7,8],:);
end
%% return receiver data
retVal = adcData;

My IWR1443BOOST is ES3.0 and the mmWave Studio version is 2.0.0.2.

Here are the steps I followed:

1. Ran the procedure of the DataCapture Demo (I changed the chirp loop to be 128 and number of frames to 8). It ran from start to end no problem and gave the demo MATLAB Gui. Here's the Lua output after successfully completing the DataCapture Demo script:

Fullscreen mmWave_studio_Lua_shell_log.txt Download

GM: Constructor
GM: Wed Apr 10 18:40:25 2019
RSTD.Transmit("/Settings")
[18:40:25]  
[18:40:25]  ### Running Startup script: "C:\ti\mmwave_studio_02_00_00_02\mmWaveStudio\Scripts\Startup.lua" ###
[18:40:25]  RSTD.SetAndTransmit ("/Settings/Scripter/Display DateTime" , "1")
[18:40:25]  RSTD.SetAndTransmit ("/Settings/Scripter/DateTime Format" , "HH:mm:ss")
[18:40:25]  Scripter ignored: Attempt to UnBuild() again or before Build.
[18:40:25]  RSTD.SetVar ("/Settings/Clients/Client 0/Dll" , "C:\\ti\\mmwave_studio_02_00_00_02\\mmWaveStudio\\Clients\\\\LabClient.dll")
[18:40:25]  RSTD.SetVar ("/Settings/Clients/Client 0/Use" , "TRUE")
[18:40:25]  RSTD.SetVar ("/Settings/Clients/Client 1/Use" , "FALSE")
[18:40:25]  RSTD.SetVar ("/Settings/Clients/Client 2/Use" , "FALSE")
[18:40:25]  RSTD.SetVar ("/Settings/Clients/Client 3/Use" , "FALSE")
[18:40:25]  RSTD.SetVar ("/Settings/Clients/Client 4/Use" , "FALSE")
[18:40:25]  RSTD.SetVar ("/Settings/AL Client/AL Dll" , "C:\\ti\\mmwave_studio_02_00_00_02\\mmWaveStudio\\RunTime\\SAL.dll")
[18:40:25]  RSTD.SetVar ("/Settings/Clients/Client 0/GuiDll" , "")
[18:40:25]  RSTD.SetVar ("/Settings/AutoUpdate/Enabled" , "TRUE")
[18:40:25]  RSTD.SetVar ("/Settings/AutoUpdate/Interval" , "1")
[18:40:25]  RSTD.SetVar ("/Settings/Monitors/UpdateDisplay" , "TRUE")
[18:40:25]  RSTD.SetVar ("/Settings/Monitors/OneClickStart" , "TRUE")
[18:40:25]  RSTD.SetVar ("/Settings/Automation/Automation Mode" , "false")
[18:40:25]  RSTD.Transmit("/")
[18:40:25]  RSTD.SaveSettings(): Settings saved to "C:\Users\S-Vec\AppData\Roaming\RSTD\config.xml"
[18:40:25]  RSTD.Build()
[18:40:25]  RSTD.SaveSettings(): Settings saved to "C:\Users\S-Vec\AppData\Roaming\RSTD\config.xml"
[18:40:25]  RSTD.Transmit("/")
[18:40:25]  RSTD.AL_Build()
[18:40:25]  RSTD.AL_LoadXml()
[18:40:25]  RSTD.Transmit("/")
[18:40:25]  RSTD.AL_Init()
[18:40:25]  RSTD.Clients_Build()
[18:40:25]  GM: Init
[18:40:25]  GM: Loaded 'C:\ti\mmwave_studio_02_00_00_02\mmWaveStudio\Clients\\LabClient.dll'
[18:40:25]  GM: 1 Guest (s) init
[18:40:25]  GM: 1 Module(s) init
[18:40:25]  GM: 2 Tab   (s) init
[18:40:25]  RSTD.Client_LoadXml()
[18:40:25]  [RadarAPI]: Starting Matlab Engine..
[18:40:28]  [RadarAPI]: Matlab Engine Started!
[18:40:30]  [RadarAPI]: ar1.LoadSettings('C:\Users\S-Vec\AppData\Roaming\RSTD\ar1gui.ini')
[18:40:30]  TESTING = false
[18:40:30]  
[18:40:30]  ***Script completed successfully.***
[18:40:33]  [RadarAPI]: Opening Gpio Control Port()
[18:40:33]  [RadarAPI]: Status: Passed
[18:40:34]  [RadarAPI]: Opening Board Control Port()
[18:40:34]  [RadarAPI]: Status: Passed
[18:40:35]  [RadarAPI]: ar1.FullReset()
[18:40:35]  [RadarAPI]: Status: Passed
[18:40:36]  [RadarAPI]: Closing Board Control Port()
[18:40:36]  [RadarAPI]: Status: Passed
[18:40:36]  [RadarAPI]: Closing Gpio Control Port()
[18:40:36]  [RadarAPI]: Status: Passed
[18:40:36]  [RadarAPI]: ar1.SOPControl(2)
[18:40:36]  [RadarAPI]: Status: Passed
[18:40:37]  [RadarAPI]: ar1.frequencyBandSelection("77G")
[18:40:39]  [RadarAPI]: RS232 is not connected ..!!!!
[18:40:49]  [RadarAPI]: ar1.Connect(5,921600,1000)
[18:40:51]  [RadarAPI]: Warning: Connected with baudrate 115200
[18:40:52]  [RadarAPI]: Warning: Disconnected existing BaudRate
[18:40:53]  [RadarAPI]: Warning: Trying to connect with baudrate 921600
[18:40:54]  [RadarAPI]: ar1.Calling_IsConnected()
[18:40:55]  [RadarAPI]: ar1.SelectChipVersion("AR1243")
[18:40:55]  [RadarAPI]: Status: Passed
[18:40:55]  [RadarAPI]: ar1.SelectChipVersion("XWR1443")
[18:40:55]  [RadarAPI]: Status: Passed
[18:40:55]  Device Status : XWR1443/QM/SOP:2/ES:3
[18:40:56]  [RadarAPI]: ar1.SelectChipVersion("AR1243")
[18:40:56]  [RadarAPI]: Status: Passed
[18:40:56]  [RadarAPI]: ar1.SelectChipVersion("XWR1443")
[18:40:56]  [RadarAPI]: Status: Passed
[18:40:56]  Device Status : XWR1443/QM/SOP:2/ES:3
[18:40:56]  [RadarAPI]: ar1.SaveSettings('C:\Users\S-Vec\AppData\Roaming\RSTD\ar1gui.ini')
[18:40:58]  [RadarAPI]: ar1.ReadRegister(0xffffe214, 0, 31)
[18:40:58]  [RadarAPI]: ar1.ReadRegister(0xffffe210, 0, 31)
[18:40:58]  [RadarAPI]: ar1.ReadRegister(0xffffe218, 0, 31)
[18:40:58]  [RadarAPI]: ar1.DownloadBSSFw("C:\\ti\\mmwave_studio_02_00_00_02\\mmWaveStudio\\Scripts\\..\\..\\rf_eval_firmware\\radarss\\xwr12xx_xwr14xx_radarss.bin")
[18:40:59]  [RadarAPI]: Downloading BSS Patch RPRC Binary..
[18:41:00]  [RadarAPI]: ar1.GetBSSFwVersion()
[18:41:00]  [RadarAPI]: BSSFwVersion:(02.00.00.01 (05/10/17))
[18:41:01]  [RadarAPI]: ar1.GetBSSPatchFwVersion()
[18:41:01]  [RadarAPI]: BSSPatchFwVersion:(01.02.00.03 (24/10/18))
[18:41:01]  BSS FW Download Success
[18:41:03]  [RadarAPI]: ar1.DownloadMSSFw("C:\\ti\\mmwave_studio_02_00_00_02\\mmWaveStudio\\Scripts\\..\\..\\rf_eval_firmware\\masterss\\xwr12xx_xwr14xx_masterss.bin")
[18:41:04]  [RadarAPI]: Downloading MSS RPRC Binary..
[18:41:07]  MSS FW Download Success
[18:41:09]  [RadarAPI]: ar1.PowerOn(0, 1000, 0, 0)
[18:41:09]  [RadarAPI]: Status: Passed
[18:41:09]  MSS power up done async event received!
[18:41:09]  Power On Success
[18:41:10]  [RadarAPI]: ar1.RfEnable()
[18:41:10]  [RadarAPI]: Status: Passed
[18:41:10]  BSS power up done async event received!
[18:41:11]  [RadarAPI]: ar1.GetBSSFwVersion()
[18:41:11]  [RadarAPI]: BSSFwVersion:(02.00.00.01 (05/10/17))
[18:41:12]  [RadarAPI]: ar1.GetBSSPatchFwVersion()
[18:41:12]  [RadarAPI]: BSSPatchFwVersion:(01.02.00.03 (24/10/18))
[18:41:12]  RF Enable Success
[18:41:13]  [RadarAPI]: ar1.ChanNAdcConfig(1, 1, 0, 1, 1, 1, 1, 2, 1, 0)
[18:41:13]  [RadarAPI]: Status: Passed
[18:41:13]  ChanNAdcConfig Success
[18:41:14]  [RadarAPI]: ar1.LPModConfig(0, 0)
[18:41:14]  [RadarAPI]: Status: Passed
[18:41:14]  Regualar mode Cfg Success
[18:41:16]  [RadarAPI]: ar1.RfInit()
[18:41:16]  RF Init async event received!
[18:41:16]  [RadarAPI]: Time stamp, Temperture: 5972,30; APLL Status, Update: 1, 0; SynthVCO1 Status, Update: 1, 1; SynthVCO2 Status, Update: 1, 1; LODist Status, Update: 1, 1; RxADCDC Status, Update: 1, 1; HPFcutoff Status, Update: 1, 1; LPFcutoff Status, Update: 1, 1; PeakDetector Status, Update: 1, 1; TxPower Status, Update: 1, 1; RxGain Status, Update: 1, 1; TxPhase Status, Update: 0, 0; RxIQMM Status, Update: 1, 1; 
[18:41:16]  [RadarAPI]: Status: Passed
[18:41:16]  RfInit Success
[18:41:17]  [RadarAPI]: ar1.DataPathConfig(1, 1, 0)
[18:41:17]  [RadarAPI]: Status: Passed
[18:41:17]  DataPathConfig Success
[18:41:18]  [RadarAPI]: ar1.LvdsClkConfig(1, 1)
[18:41:18]  [RadarAPI]: Status: Passed
[18:41:18]  LvdsClkConfig Success
[18:41:19]  [RadarAPI]: ar1.LVDSLaneConfig(0, 1, 1, 1, 1, 1, 0, 0)
[18:41:19]  [RadarAPI]: Status: Passed
[18:41:19]  LVDSLaneConfig Success
[18:41:20]  [RadarAPI]: ar1.ProfileConfig(0, 77, 100, 6, 60, 0, 0, 0, 0, 0, 0, 29.982, 0, 256, 10000, 0, 0, 30)
[18:41:20]  [RadarAPI]: Status: Passed
[18:41:20]  ProfileConfig Success
[18:41:21]  [RadarAPI]: ar1.ChirpConfig(0, 0, 0, 0, 0, 0, 0, 1, 1, 0)
[18:41:21]  [RadarAPI]: Status: Passed
[18:41:21]  ChirpConfig Success
[18:41:22]  Test Source Already Disabled...!!!
[18:41:22]  [RadarAPI]: Status: Passed
[18:41:22]  [RadarAPI]: ar1.FrameConfig(0, 0, 8, 128, 40, 0, 1)
[18:41:22]  [RadarAPI]: Status: Passed
[18:41:22]  FrameConfig Success
[18:41:23]  [RadarAPI]: ar1.SelectCaptureDevice("DCA1000")
[18:41:24]  [RadarAPI]: passed
[18:41:24]  SelectCaptureDevice Success
[18:41:25]  [RadarAPI]: StatusDCCard Event Registered
[18:41:25]  [RadarAPI]: Status: Passed
[18:41:25]  [RadarAPI]: ar1.CaptureCardConfig_EthInit("192.168.33.30", "192.168.33.180", "12:34:56:78:90:12", 4096, 4098)
[18:41:25]  [RadarAPI]: Status: Passed
[18:41:25]  [RadarAPI]: SYSTEM_CONNECT_CMD_CODE Async event recieved(9)
[18:41:25]  [RadarAPI]: ConnectRFDCCard Status: Passed
[18:41:25]  [RadarAPI]: Status: Passed
[18:41:25]  [RadarAPI]: READ_FPGA_VERSION_CMD_CODE event recieved(14)
[18:41:25]  [RadarAPI]: Status: Passed
[18:41:25]  CaptureCardConfig_EthInit Success
[18:41:26]  [RadarAPI]: ar1.ConfigureRFDCCardMode(1, 1, 1, 2, 3, 30)
[18:41:26]  [RadarAPI]: Status: Passed
[18:41:26]  [RadarAPI]: CONFIG_FPGA_GEN_CMD_CODE Async event recieved(3)
[18:41:26]  CaptureCardConfig_Mode Success
[18:41:27]  [RadarAPI]: ar1.CaptureCardConfig_PacketDelay(25)
[18:41:27]  [RadarAPI]: Status: Passed
[18:41:27]  [RadarAPI]: CONFIG_PACKET_DATA_CMD_CODE Async event recieved(11)
[18:41:27]  CaptureCardConfig_PacketDelay Success
[18:41:28]  [RadarAPI]: ar1.CaptureCardConfig_StartRecord("C:\\ti\\mmwave_studio_02_00_00_02\\mmWaveStudio\\Scripts\\..\\PostProc\\adc_data.bin", 1)
[18:41:28]  [RadarAPI]: Status: Passed
[18:41:28]  [RadarAPI]: RECORD_START_CMD_CODE Async event recieved(5)
[18:41:29]  [RadarAPI]: ar1.StartFrame()
[18:41:29]  [RadarAPI]: Status: Passed
[18:41:29]  Frame start async event received!
[18:41:29]  Frame End async event received!
[18:41:29]  [RadarAPI]: Frame Ended
[18:41:31]  Please wait for a few seconds for Packet reorder utility processing .....!!!! 
[18:41:31]  [RadarAPI]: Packet Reorder Utility Started...please wait...
[18:41:31]  [RadarAPI]: ar1.PacketReorderZeroFill("C:\\ti\\mmwave_studio_02_00_00_02\\mmWaveStudio\\Scripts\\..\\PostProc\\adc_data_Raw_0.bin", "C:\\ti\\mmwave_studio_02_00_00_02\\mmWaveStudio\\Scripts\\..\\PostProc\\adc_data.bin", "C:\\ti\\mmwave_studio_02_00_00_02\\mmWaveStudio\\Scripts\\..\\PostProc\\pktlogfile.txt")
[18:41:31]  [RadarAPI]: STS_RECORD_COMPLETED Async event recieved(8)
[18:41:31]  [RadarAPI]: ar1.CaptureCardConfig_StopRecord()
[18:41:31]  [RadarAPI]: Status: Passed
[18:41:31]  [RadarAPI]: RECORD_STOP_CMD_CODE Async event recieved(6)
[18:41:36]  [RadarAPI]: Packet Reorder Utility process completed!
[18:41:36]  Reordering required : NO
[18:41:36]  Packet loss : NO
[18:41:36]  Number of packets received : 2879
[18:41:36]  Number of zero filled packets : 0
[18:41:36]  Number of zero filled bytes : 0
[18:41:46]  Packet reorder utility processing done.....!!!! 
[18:41:46]  Please wait for a few seconds for matlab post processing .....!!!! 
[18:41:46]  [RadarAPI]: ar1.StartMatlabPostProc("C:\\ti\\mmwave_studio_02_00_00_02\\mmWaveStudio\\Scripts\\..\\PostProc\\adc_data.bin")
[18:41:56]  
[18:41:56]  ***Script completed successfully.***

2. Ran the MATLAB function provided by calling: readDCA1000("C:\ti\mmwave_studio_02_00_00_02\mmWaveStudio\PostProc\adc_data.bin") and got this error from MATLAB:

Error using reshape
Product of known dimensions, 8, not divisible into total number of elements, 2095431.

Error in readDCA1000 (line 30)
    adcData = reshape(adcData, numLanes*2, []);

Error in cwins_process_adc (line 1)
readDCA1000("C:\ti\mmwave_studio_02_00_00_02\mmWaveStudio\PostProc\adc_data.bin");

I put a breakpoint before the ''reshape' and here's the screenshot:

I know that if the function successfully returns, the number of ADC samples should be = 256 (samples/chirp) * 8 frames * 128 (chirps/frame). But the reshape call breaks everything before that happens, because the number of adcData is 2095431 which is not divisible by 8.

Do I need to change the parameters in the provided MATLAB function? I'm pretty sure that I'm using 16-bit ADC and the data is complex1x as you can see from Lua shell output.

I'm really at my wit's end on how to fix this. I would really appreciate some insight.

Many thanks in advance!

Ziheng

over 6 years ago

0 Chloe Shay71 over 6 years ago

TI__Expert 4025 points

Hi Ziheng,

Thank you for sending me the log files. Looking at the configuration you are using, the ADC is configured to 14 bits.

This line in the log file:

"ar1.ChanNAdcConfig(1, 1, 0, 1, 1, 1, 1, 2, 1, 0)"

corresponds to the configuration shown below in mmWave studio.

Hope this helps.

- Chloe

0 ZIHENG LI over 6 years ago in reply to Chloe Shay71

Prodigy 250 points

Thank you Chloe,

maybe I'm running a different software version, but in mmWave Studio, when I set the ADC Bits to be 16 and click set, the Lua output window gives: ar1.ChanNAdcConfig(1, 1, 0, 1, 1, 1, 1, 2, 1, 0).

See screenshot above.

And even when I set the ADC config as shown in the screenshot, MATLAB still reads 2095431 points from adc_data.bin. The number of points is not divisible by 8, therefore, the reshape call in readDCA1000.m will still run into the same error.

To help me understand this, how many data point should be in adcData (before reshaping in MATLAB).

Best,

Ziheng

Edit:

also when I do the post_process in mmWave studio, the number of ADC bits given is also 16, see screenshot below:

More Edit:

Also, I noticed an interesting thing.

After setting up the parameters, if I just record the data by running the DataCaptureDemo, the resulting adc_data.bin as read in MATLAB has 2095431 points which is the same as before and the reshape call in MATLAB will return in error.

After that, if I click post_proc in the mmWave interface, the MATLAB now reads 2097152 points and the data reading returns successfully.

As a confirmation, the dataCapture visualization gives the correct graph in both cases.

Is there any difference between the post process in the mmWave GUI and the one in DataCaptureDemo script?

0 ZIHENG LI over 6 years ago in reply to ZIHENG LI

Prodigy 250 points

Here are the two dataset read in Matlab, the one on the left is running post_proc from mmWave GUI, which gives the correct number of ADC samples; the one on the right results from just running the data_capture_demo0, and the ADC sample number is fewer than the former one.

See the screenshot between for comparing the two datasets:

Attached are the two Matlab data files shown in the screenshot:

adc_datasets.zip

Hope to hear back from you soon.

Ziheng

0 ZIHENG LI over 6 years ago in reply to ZIHENG LI

Prodigy 250 points

Hey,

We're working all night on this and finally got it fixed. Here's what's wrong;

In DataCaptureDemo.lua, in the section where it triggers the frame:

ar1.StartFrame()
RSTD.Sleep(2000)

Increase the sleep time, we used RSTD.Sleep(5000). This would fix the incorrect number of data.

We noticed that when running the DataCaptureDemo, the number packet received is 2789; whereas running the mmWave GUI gives a packet count of 2881. So we suspect that there might be missed packet when running the DataCaptureDemo. After changing the sleep time, as shown above, the packet number is now 2881 and the number of ADC samples read in MATLAB is now correct.

This leads to the question of exactly how long should we want after starting a frame. Does the time that's taken to get one packet depend on the system?

Cheers,

Ziheng

0 Chloe Shay71 over 6 years ago in reply to ZIHENG LI

TI__Expert 4025 points

Hi Ziheng,

It looks like your machine may be dropping packets. Does increasing the packet delay also fix your issue? Please see this thread for more information on his issue. The value you set for packet delay may depend on your PC.

-Chloe

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IWR1443BOOST: IWR1443+DCA1000: wrong number of ADC samples