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最近有很多朋友给我留言或者发短消息，在此留下我的MSN和E-Mail，方便交流！ MSN : dancingbloodthuee@hotmail.com E-Mail : dancingbloodwang@gmail.com
DM6446的开发套件里还有一个叫DVSDK的东东，今儿就说说这玩意儿是干什么用的，那就跟着我看一下从TI官方网站转贴的DVSDK内容的说明吧，注释就穿插到里面了～～
The DVSDK includes:
- eXpressDSP(tm) Configuration Kit: The configuration kit allows system integrators to incorporate discrete software modules and combine them into a single executable output for the systems, avoiding months of tedious manual integration. By making it easy to create custom bundles of codecs for specific applications, the configuration kit makes it simple to reuse code. The configuration kit integrates:
- TI’s video, imaging, speech and audio codecs 这个就是算法库，不过都是Demo的Combo，不愿意花钱从第三方买就自己做喽～～
- Custom codecs that comply with TI’s eXpressDSP™ Digital Media (xDM) algorithm standard 这个就是TI传说中的算法标准xDAIS衍生出来的xDM1.0Beta，早在CE1.10就有了，不过用了用Bug很多，现在CE1.20应该解决这个问题了吧，我还没时间扑腾CE1.20呢
- TI’s codec engine framework 这个东西主要是用来做DMA的，双核协调DMA资源的使用是非常考究的，算法要使用QDMA就要通过这个东西才能兼容xDAIS
- DSP/BIOS™ real-time kernel 这个不用说了吧，BIOS内核，早在DM642时代就有了的
- TI’s DSP/BIOS Link inter-processor communication technology 这个是BIOS Link，负责双核之间进行通信用的，文档比较多，类似于进程间通信，做算法集成不必太过于深入到这个里面，会用会配置就可以了，它有一个配置脚本，可以选择你要用到的Module，从这里面已经可以看到支持VirulLogic的东西了。
- TMS320DM644x SoC Analyzer is a single graphical interface tool that provides complete system visibility enabling developers to identify bottlenecks that were previously impossible to identify. This tool is minimally invasive and aids in analyzing and identifying problems by capturing and graphically displaying:
- system interaction
- load distribution
- bottlenecks in data throughput
- and other types of behavior
这是一个SoC双核系统的实时剖析工具，可以看到ARM端和DSP端的线程图，资源占用率什么的，把玩了一下，感觉用处不大，当然，也可能是我太笨了。。。
As the tasks run on both the DSP and ARM cores of the TMS320DM644x processors, the analyzer captures and displays the data on a single timeline. This provides a complete system view of the application and eliminates the tedious process of manually collecting and comparing data on each core before optimization begins.
- MontaVista’s Linux Operating System (OS) is a proven, system-tested Linux support package optimized for digital video applications and the TMS320DM644x processors. Included in the support package is:
- License and support for the MontaVista kernel and DevRocket integrated development environment directly from TI, giving access to the industry’s vast store of Linux-based resources 这个东西就是一个Java做的集成开发环境，用的是eclipse的东东，非常非常的慢，非常非常的不好用，还是直接命令行爽，我现在用它看代码。。。
- GCC ARM tool chain components 这个都是标准的，开源的，免费的
- The latest thread library support with POSIX compliance
- Access for one year to the MontaVista Zone to download the newest device support libraries, updates and enhancements as they become available with each license这是一年的Mail技术支持，感觉还有点用，用SDK的账户可以去MVista网站下一些东西
What’s Included:
The Digital Video Software Development Kit with MontaVista Pro Linux (TMDSSDK6446-L) includes MontaVista Pro Linux Professional Developers seat
- DevRocket IDE
- MontaVista Zone access (1 year subscription)
- DM644x LSP
- Production MontVista Linux run-time target environment
- DM6446 SOC Analyzer (beta)
- eXpressDSP Configuration Tool
The Digital Video Software Development Kit with MontaVista Pro Linux, Code Composer Studio and XDS560 Emulator (TMDSSDK6446-3L) includes (TMDSSDK6446-L3) includes all of the above plus:
- Code Composer Studio Platinum IDE with first year annual subscription
- Spectrum Digital Inc. XDS560 High-Speed USB Emulator w/native 20 pin compact TI connector support for the TMDXEVM6446
最后说几句自己胡乱猜测的东西，刚开始TI应该是跟MVista合作，MVista剪裁出一套DM6446的内核和驱动，然后顺便买自己的DevRocket集成开发环境，后来MVista驱动做的太烂，TI不能忍了，把SDK里除了有MVista产权的东西譬如DevRocket之类剩下的全都公开了，然后开始自己维护DVEVM的驱动，现在我是觉得，完全不必需要DVSDK这样的东西只用TI的资源就可以完成DM6446的产品级开发，如果我猜的对，可粘的MVista就被TI玩了。。。
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