您好
最近买了一批2812,还没烧写就已经有程序在运行。卖家给的解释是片子出厂检验时烧的测试程序。个人觉的不靠谱。请问有这种说法吗?还是说直接就是买到拆机的片子了??
其中有的仿真器不能连接,有的连接上发现是锁死的。
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