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如何实现BLDC控制,并利用SCI实时发送数据给上位机

TI例程的BLDC控制是采用T1的周期中断实现的,中断频率为40K,

在此基础上,增加SCI发送功能,发送2个32位数据,PC的232最高支持115200,

把SCI程序直接放入T1周期中断服务程序中,采用查询标志位的方法,时间占用严重。

怎么处理比较好?SCI采用中断方式呢?