常见问题

CMUcam3 是完全开源且可编程的吗？

Yes, that's the point! You can use GCC to compile code and the board can be flashed over any serial port. No need to buy a jtag dongle or any other programming device. This web page provides all of the code, libraries, schematics etc. for the CMUcam3. Click on the Browse Source button at the top of this page to take a look at the source.

您可以在 Windows、Linux 和 Mac 上进行开发吗？

是的！在 Windows 下使用 Cygwin，在 Linux 和 Mac 上使用您的标准环境。一旦您在 /dev/目录中找到您的串行端口名称，串行命令行下载器应该可以在 Mac 上工作。对于 Mac，您需要从源代码编译 arm-gcc。我们很快将提供可执行文件。

用于 CMUcam3 的 CMUcam2 固件完全相同吗？

还不完全是，但也许将来会。我们认为我们已经实现了最常用的功能。您拥有源代码，因此可以自己添加任何缺失的功能。

我应该购买 CMUcam、CMUcam2 还是 CMUcam3？

That depends. The CMUcam and CMUcam2 are designed as fully integrated sensor sub-systems that you use as a black-box. The CMUcam3 can eventually be used in the same way, however you may need to design your own functionality for it. The easiest way to do this is to tailor existing CMUcam3 projects for your application. The CMUcam3's major advantage is that it is open source and programmable. So you can easily modify or write your own firmware to run on it. As a black-box system, the CMUcam3 supports most but not all of the CMUcam2 functionality. We ported over the features that we saw people using most often. Some of the CMUcam3's other functionality (like the face detector) requires flashing the CMUcam with different firmware images. That being said, even the CMUcam2 firmware emulation on the CMUcam3 has some extra features like jpeg making it more powerful than the original CMUcam2. The CMUcam3 has a more powerful processor and an SD slot for FLASH storage. The original CMUcam is your best bet if cost is your main concern. See this webpage for a description of the differences between the CMUcam2 and the original CMUcam.