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ZLG嵌入式笔记 | 为什么你的网卡工作会不正常?(上)
复位时间不够导致网卡工作异常 有一个客户选用致远电子的核心板设计新产品,搭配了自己常用的以太网PHY芯片LAN8720,但是工作不正常,找到我们协助进行调试。经了解,客户原先网卡的复位是CPU控制,而在新设计中,参考了我司的开发板,改成了RC延时复位。
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