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参考:http://www.cnblogs.com/zym0805/p/4815041.html 一. 硬件数据手册 The ST16C554D is a universal asynchronous receiver and transmitter (UART) with a dual foot 阅读全文
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转自: Linux Core Power Management User's Guide (v3.14) http://processors.wiki.ti.com/index.php/Linux_Core_Power_Management_User's_Guide_(v3.14)?keyMatch 阅读全文