关于输出数据格式,数据手册表示两种数据格式下LB69和LB49的范围相同,在补码形式下,转换为二进制后LB69的最高两位无论正负都是0,这岂不是说明最高两位没有用到,那这样LB69与LB49有什么不同呢?
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