在向一个嵌入式产品设计做出几年的财力和物力投资之后,设计工程师最不愿意听到的消息就是他所采用的器件已经“生命终止”。在分立的嵌入式处理中,陈旧过时意味着设计工程师必须为他的下一个设计转向采用另外一种处理器,并且完全可能要重新设计他想在市场中保持的现有产品。 After making a few years of financial and material investments in an embedded product design, the last thing a design engineer would want to hear is that the device he’s used has been “end-of-life.” In discrete embedded processing, obsolescence means that a design engineer must turn to another processor for his next design and may well have to redesign the existing product he wants to keep in the market.