Bare metal Ultibo with openjjpeg with TFTP Server & Remote shell

Ed Vidal

Hello All,
This should work on either a RPi2B or RPi3B
The micro sd-card that I used was 8GB with 1 partition.
A 4GB micro sd-card should work just as well.

Device     Boot Start     End Sectors Size Id Type
/dev/sda1  *     2048 8390655 8388608   4G  b W95 FAT32

    these 5 files are needed on micro sd-card
    MyBitmap.bmp This is a 2048 x 2048 lena in RGB format
    kernel7.img This file was created with 
    Free Pascal Compiler FPC.

A monitor needs to be connected on the HDMI connector to display the boot
process. The RJ-45 connector needs to be connected to network that provides
DHCP and NTP services. If the RJ-45 is not connected it will take a bit
longer to boot and the TFTP & Remote shell will not be available.

This will require the transfer of files with USB apdater. 

    This is the latest version with a compression ratio of 125:1
    12583034 --> 100660
    This will create the file test.j2k
    tftp xx.xx.xx.xx
    get test.j2k
    this md5sum should be
    c38b036fc5dbd84082f9490deb45c59e  test.j2k
    running the test_tile_decoder
     ~/t_ultibo/build/bin/test_tile_decoder 0 0 2048 2048 test.j2k
    create test_wr.bmp
    Adding the files kernel7.img & t_1024_125r.j2k
    to the sd-card.
    The file t_1024_125r.j2k on Raspbian
    pi@raspberrypi3:~/t_ultibo/build/bin $ "./opj_compress -r 125 -i
    ~/jpeg-2000-test/bare-metal/LibC/lena_rgb_1024.bmp -o t_1024_125r.j2k"
    When rebooted the display will appear like 1024_1024.jpg
    The file test_wr.bmp will be created on Ultibo RPi
Let me know if you have any questions.  I look forward to hearing your comments on this.
I have tested with a compression of 400:1 which further reduces the image transfer to about a 0.1 sec.
Edward Vidal Jr. e-mail develone@... 915-595-1613

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