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时钟快了害死人啊



矩阵键盘用两个for用uint嵌套,延时都不够;12864串口打点,在单片机内部扩展了1024个字节的数组后,再改变字节,改变数据,改变数据多了,显示乱码 两个时钟改为800k都ok了 。。。。悲催呀