兼容性：
| license许可证 | |||||||||||
| 2 | 2.1 | 2.2 | 3 | 3.1 stn | 3.1 pro | 4.0 stn | 4.0 pro | 4.1 stn | 4.1 pro | ||
| 工具版本 | 2 | yes | yes | yes | yes | yes | yes | yes | yes | yes | yes |
| 2.1 | - | yes | yes | yes | yes | yes | yes | yes | yes | yes | |
| 2.2 | - | - | yes | yes | yes | yes | yes | yes | yes | yes | |
| 3 | - | - | - | yes | yes | yes | yes | yes | yes | yes | |
| 3.1 stn | - | - | - | - | yes | yes | yes | yes | yes | yes | |
| 3.1 pro | - | - | - | - | - | yes | - | yes | - | yes | |
| 4.0 stn | - | - | - | - | - | - | yes | yes | yes | yes | |
| 4.0 pro | - | - | - | - | - | - | - | yes | - | yes | |
| 4.1 stn | - | - | - | - | - | - | - | - | yes | yes | |
| 4.1 pro | - | - | - | - | - | - | - | - | - | yes | |
另外， rvds 4.x, 3.x and 2.x licenses 可以在一些早期的arm工具中使用，如下：比如说，目前有一个3.0版本的license，那么就可以使用2.0、2.1、2.2、3.0这四个工具软件版本。
- rvct 2.0.1
- rvct 2.0
- rvct 1.2
- rvd 1.6.1
- rvd 1.6
- ads 1.2
- ads 1.1 [注意：rvds license will not license arm debugger for windows/unix (adw/adu)]
- ads 1.0.1 [注意：an rvds license will not license arm debugger for windows/unix (adw/adu)]
note 1: there are versions of rvds which ship with codewarrior ide and versions which ship without it (see link below). versions of rvds which do not ship with codewarrior will not allow the use of codewarrior.
note 2: an rvds license will not enable any version of rvdk, or rvct for brew.
note 3: you are not entitled to enable seats which have been since replaced by upgrade/update seats.
英文原文地址：http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.faqs/ka3939.html
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