保护您的MCU设计复制和反向工程

　　保护您的MCU设计复制和反向工程

　　单片机作为主控单元，在每一个可以想象的应用。它们的力量和灵活性使它们成为大多数设计的核心部件。因为它是确保你的设计不能被轻易复制的重要，逆向工程或篡改，现代MCU现在保护您的设计提供了一些不同的选项；良好的理解能力和取舍很重要，以确定哪种方法是最好的一个给定的设计。

　　本文将介绍一些常见的方法来设计保护，如让你的单片机读取从外面的世界，使用片上功能验证代码的执行是未使用的外部元件提供更先进的安全功能。板技术的篡改检测和可能的“处罚”，可以应用也将被描述。

　　Protecting your design

　　You may not have given much thought to how easy it is to copy your design， but engineers who have experienced design theft will tell you that once it has happened， you never want it to happen again！ For example， if the on-chip code for your MCU design can be read out by a competitor， or even by an unscrupulous contract manufacturer， your entire design can be easily copied and resold — either under a different brand or perhaps even using your brand on the black market. Popular designs that outstrip product capacity are ripe for this type of treatment， and if sellers cannot get product from you they may dip into the black market to satisfy their customer demand.