Hello All,This should work on either a RPi2B or RPi3BThe 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
https://github.com/develone/jpeg-2000-test/tree/master/bare-metal/openjp/sd-card
these 5 files are needed on micro sd-card bootcode.bin fixup.dat
MyBitmap.bmp This is a 2048 x 2048 lena in RGB format start.elf
kernel7.img This file was created with Free Pascal Compiler FPC.
A monitor needs to be connected on the HDMI connector to display the
bootprocess. The RJ-45 connector needs to be connected to network that
providesDHCP and NTP services. If the RJ-45 is not connected it will take a
bitlonger 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
binary 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
https://github.com/develone/jpeg-2000-test/tree/master/bare-metal/openjp/decomp-sd-card
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 devel...@sbcglobal.net 915-595-1613
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