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2812中 SCI有空闲-线模式与地址-位模式怎么跟上位机兼容?



SCI有两种模式,以上位机未知的情况下,是不是两中驱动都要写吗?才能兼容呢

例如上位机是ARM+LINUX的情况下,而我也并不了解上位机驱动详细情况,那该用哪种模式呢??