MATLAB and DLP LightCrafter load static image

Hi Jan,

Welcome to DLP&MEMS fourm.

For the display a static image. It is important to note the resolution info of the image. It should be always be 608 x 684 size.

Change your code as following - it should work.

tcpObject = tcpip('192.168.1.100',21845)

fopen(tcpObject) 

fwrite(tcpObject,uint8(hex2dec(['02';'01';'01';'00';'01';'00';'00';'05'])));%switch display mode to static

%create simple image

im = zeros( 30,30);

im = zeros( 684, 608);

im (3:8, 3:8) = 1;

imwrite( im, 'im.bmp' );

imFile = fopen( 'im.bmp' );

imData = fread( imFile, inf, 'uchar' );

fclose( imFile ); 

lenData = length( imData );

lenDataMSB = floor( lenData / 256 )

lenDataLSB = mod( lenData, 256 )

%send header

header = uint8(hex2dec(['02';'01';'05';'00'; dec2hex( lenDataLSB, 2 ); dec2hex( lenDataMSB, 2 )]));%static image

fwrite(tcpObject,header);

%send data

data = uint8(imData);

%limit packet size

MAX_SIZE = 512;

buffer = data;

while (~isnan(buffer))

    if( length(buffer) > MAX_SIZE )

        currentPacket = buffer( 1 : MAX_SIZE);

        buffer = buffer( MAX_SIZE + 1 : end );

    else

        currentPacket = buffer( 1 : end);

        buffer = NaN;

    end

    fwrite(tcpObject,currentPacket);

    disp('wrote some data')

end

%send checksum

checksum = mod( sum(header) + sum(data), 256 );

fwrite(tcpObject,checksum);

fclose( tcpObject );

Regards,

Sanjeev