详细说明：F2812使用EVA的QEP模块捕捉正交编码器的正交脉冲，记录编码器的当前位置与时间信号（可判断正反转）-F2812 using the EVA QEP module captures the quadrature encoder quadrature pulse encoder records the current position and time signals (can be judged Reversible)
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