{"id":46900,"date":"2023-10-02T00:06:41","date_gmt":"2023-10-01T16:06:41","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=46900"},"modified":"2023-10-02T00:06:41","modified_gmt":"2023-10-01T16:06:41","slug":"hkuqc","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/46900.html","title":{"rendered":"HAL\u5e93USART\u6e05\u9664"},"content":{"rendered":"<p>&emsp;&emsp;HAL\u5e93USART\u6e05\u9664\u662f\u4e00\u79cd\u6280\u672f\uff0c\u5b83\u53ef\u4ee5\u5e2e\u52a9\u7528\u6237\u6e05\u9664USART\u63a5\u6536\u7f13\u51b2\u533a\u4e2d\u7684\u6570\u636e\uff0c\u4ece\u800c\u786e\u4fdd\u4e0b\u6b21\u63a5\u6536\u7684\u6570\u636e\u662f\u6700\u65b0\u7684\u3002<\/p>\n<h2 style=\"text-align: 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USART_FLAG_RXNE);<\/li>\n<li>3.\u5728\u4e3b\u51fd\u6570\u4e2d\u68c0\u67e5USART_FLAG_RXNE\u6807\u5fd7\u4f4d\uff1aif(USART_GetFlagStatus(USARTx, USART_FLAG_RXNE) == 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