AWR1642BOOST: AWR1642boost with MATLAB script

Hi,

I apologize for the delay.

Is the purpose to capture raw data?

I remember in a different thread we provided you with a LUA script to use with mmWave Studio to capture raw data.

Are you at this point able to capture raw data?

Thank you

Cesar

Hi Cesar,

No worries at all. Thank you for your response.

> Actually I'm able to get raw radar data through mmWave studio. Also post processed data as well.

>  I have two questions related to this.

1) When I used the script as provided path below and run the matlab script and provide the bin file and conf file(setup.json and mmwave.json)  it gives me 2 mat files (a) rawDatafilename.mat and (b) rawDatacube.mat. Also with an error of as mentioned above (If Debug File Error). So first question is how I can remove the error?, to get the plots.

Fahad Ayaz said:

and my Matlab script of "C:\ti\mmwave_studio_02_01_01_00\mmWaveStudio\MatlabExamples\singlechip_raw_data_reader_example" is:

2) As attached above figures: These are the figures from mat files which I discussed in Q1. So my second question is as you see in mat files I have diferent results some are: rfParams, Data and dim.

I know about the two but the third one which is Data when I open it, it gives me several variables as shown above ( adcVariablesdata.data) so my question is I'm confused about these several files which belongs to which category and how I can manage it by combining all these files together or what else I can do?

I hope you understand now. 

Kind regards,

Fahad

Hi,

The readme file shows an example how to call this matlab script. Are you providing all arguments?

C:\ti\mmwave_studio_02_01_01_00\mmWaveStudio\MatlabExamples\singlechip_raw_data_reader_example\readme.txt

Based on the matlab script, one can see the content of the rawdata. As you can see the data is the rawADCData that was read from the bin file.

thank you

Cesar

        adcRawData.rfParams = Params.RFParams;
        adcRawData.data = rawADCData;
        adcRawData.dim.numFrames = Params.NFrame;
        adcRawData.dim.numChirpsPerFrame = Params.adcDataParams.numChirpsPerFrame;
        adcRawData.dim.numRxChan = Params.NChan;
        adcRawData.dim.numSamples = Params.NSample;

Hi cesar,

I think you didn't understand my questions properly.

> I don't know which argument I should provide to remove the error???

> I know that is the RawAdcdata. But you can see in figure I have different variables under Rawadcdata.mat file. Which one is my Rawdata all of these 262144x1 all these files are my data or I can emerge them?

Thank you

Hi,

Could you please send me your files so I can try them?

1) Json file

2) Raw data bin file

thank you

Cesar

Yeah sure.

Files are so big enough so I'm unable to share is there any other way like email etc

Thank you

Fahad

Hi cesar,

I'm still waiting for your reply on this can you please help me about this.

Kind regards,

Fahad

Hi,

Let me check with the systems team

thank you

Cesar

Hi,

I have uploaded the zip file please have a look do let me know then. This include Json files.

1.zip.rar

Thank you 

Fahad

Hi,

I have found this appnote that should be helpful as well

https://www.ti.com/lit/an/swra581b/swra581b.pdf

Thank you

Cesar

Hi,

I used that script for AWR1642BOOST but again got some errors.

Error using reshape
Size arguments must be real integers.

Error in readDCA1000 (line 29)
LVDS = reshape(adcData, numADCSamples*numRX, numChirps);

I tried a lot but never resolve the issue.

Kind regards,

Fahad

Hi Cesar,

Please find the below script and error. 

%%% 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(~)
%% global variables
% change based on sensor config
numADCSamples = 256; % number of ADC samples per chirp
numADCBits = 16; % number of ADC bits per sample
numRX = 4; % number of receivers
numLanes = 2; % do not change. number of lanes is always 2
isReal = 1; % set to 1 if real only data, 0 if complex data0
%% read file
% read .bin file
fid = fopen('datacard_record_Raw_0.bin','r');
adcData = fread(fid, 'int16');
% if 12 or 14 bits ADC per sample compensate for sign extension
if numADCBits ~= 16
l_max = 2^(numADCBits-1)-1;
adcData(adcData > l_max) = adcData(adcData > l_max) - 2^numADCBits;
end
fclose(fid);
fileSize = size(adcData, 1);
% real data reshape, filesize = numADCSamples*numChirps
if isReal
numChirps = fileSize/numADCSamples/numRX;
filesize = numADCSamples*numChirps;
LVDS = zeros(1, fileSize);
%create column for each chirp
LVDS = reshape(adcData, numADCSamples*numRX, numChirps);
%each row is data from one chirp
LVDS = LVDS.';
else
% for complex data
%filesize = 2 * numADCSamples*numChirps
numChirps = fileSize/2/numADCSamples/numRX;
filesize = 2 * numADCSamples*numChirps;
LVDS = zeros(1, fileSize/2);
%combine real and imaginary part into complex data
%read in file: 2I is followed by 2Q
counter = 1;
for i=1:4:fileSize-1
LVDS(1,counter) = adcData(i) + sqrt(-1)*adcData(i+2);
LVDS(1,counter+1) = adcData(i+1)+sqrt(-1)*adcData(i+3);
counter = counter + 2;
end
% create column for each chirp
LVDS = reshape(LVDS, numADCSamples*numRX, numChirps);
%each row is data from one chirp
LVDS = LVDS.';
end
%organize data per RX
adcData = zeros(numRX,numChirps*numADCSamples);
for row = 1:numRX
for i = 1: numChirps
adcData(row, (i-1)*numADCSamples+1:i*numADCSamples) = LVDS(i, (row-1)*numADCSamples+1:row*numADCSamples);
end
end
retVal = adcData;

And call the function like:

>> readDCA1000('datacard_record_Raw_0.bin')

and got the error.

Error using reshape
Size arguments must be real integers.

Error in readDCA1000 (line 29)
LVDS = reshape(adcData, numADCSamples*numRX, numChirps);

Kind regards,

Fahad