Difference between revisions of "VCSBC4018 vision board"
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Revision as of 15:53, 20 July 2010
This tutorial explains how to use the camera board VCSBC4018.
This camera board mounts a TMS320C64xx TI processor working at 40MHZ. The camera sensor can take images with a resolution of 640 x 480 pixels. The board is equiped with a 100 Mbit Ethernet that allows to comunicate with a PC, 32 MB RAM and 4 MB flash EPROM. Power supply: 12~14V.
Part 1: HW connection
The photo above represents a generic board, in fact the VCSBC4018 doesn't have the J6 jumper.
On the other hand, the photo below shows the real board with the two jumpers connected.
The power (12~24V) must be connected to the red cable of J3 and the GND to the balck cable of the same connector. At the end, the RJ-45 connector must be plugged into PC LAN port.
Part 2: SW installation
Now it'time to install the necessary PC software. The software we are going to use can be used only on Microsoft Windows. To begin you have to download Code Composer Studio from Texas Instrument web site (http://focus.ti.com/docs/toolsw/folders/print/ccstudio.html). To be able to download it have to be loged in. The current software viersion is 4.1.2, this tutoria will continue using this particular version. After that you must run the setup program. So choose the installation directory, for example C:\ti.
In this way the developement tool is installed. You can use it for free for a mounth. After that you can register on web and you can use it for free for other two mounth.
Now it's time to install the compiler "Code Generation Tools". You can download it from the TI site (https://www-a.ti.com/downloads/sds_support/TICodegenerationTools/download.htm) like before you have to be loged in to download the software. The current version is 6.0.23. So launch the setup program. During the installation choose "Typical Install"
The camera productor developed a library to help the user to take images and work on those. The library can be downloaded on http://www.vision-components.com/ following this links: Services & Support -> Download Center -> Software -> VC Libraries. So download the version for Code Composer 4.x users and launch the installation process "TI-VCRT5XX_VCLIB3XX_CCS4_Setup.exe". Install the VC library to the same folder as CCS4 (for example C:\ti).
Now you are abble to write the you first program for the camera.
Part 3: Create the first project
Now it's time to create the first CCS4 project.
With the installation of VC Library, Vision Components provides a template CCS4 project, containing all the necessary compiler and linker settings to create programs which will run properly on camera.
Then run CCS 4. The program asks you to choose a “workspace”, the place where all your CCS 4 projects will be saved. The template project was installed in the \myprojects folder of the install folder. If you want to use this folder for your future projects too, choose it as workspace, for example C:\ti\myprojects, and select “OK”. A windows will open to ask you the licence. Select evaluetion version to use the software 30 days for free.
Import the template CCS4 project provided by VC. For this, go to menu Project->Import Existing CCS/CCE Eclipse Project. Browse to your workspace and choose thefolder C:\ti\myprojects. Select the project vcproject that appears in the list. Click on Finish.
The project vcproject appears in the left column. It shows the include folders, a sample program “hello.c” and the link command file which contains the libraries to be linked.
To change the setting of the project right-click on the project folder on the left and choose "Build Properties". Click on “CCS Build” in the left column. Now you could have the following settings:
- Device Variant: Generic C64XX device
- Code Generation Tools: version 6.0.23 (if the version doesn’t appear in the list, click on “More…” and in the dialog indicate the CGTools installation folder)
- Linker command file: ccr.cmd
- Runtime Support Library: from VCRT 5.29, the rts6400.lib is supported for compilation with C64xx processors. But as it’s already linked in the linker command file (ccr.cmd), the field has to be empty!
If you click on “C/C++ Build” in the left column, and choose the “Buils Settings” tab, you can give the name of the executable program. Leave “.out” as extension.
The compiler warning: “entry point other than _c_int00 specified” is not relevant as VCRT uses a different entry point.
According to the build options two output files “new.out” and “new.msf” are generated through the compilation process. These files are stored in the “send” folder of your CCS4 project folder.
Part 4: Program execution
Before to exec the program on the camera you have to connect the camera to the PC by the LAN cable. Now go to TCP/IP setting and set your IP and mask on the nektwork interface where you had connected the camera. The IP you have to set must be 192.168.0.X where X != 65 and the mask 255.255.255.0. The default IP of the camera is 192.168.0.65.
Now you can use the camera shell with a PC terminal, in this tutorial we are going to use Tera Term.