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ADS1282的数据恢复问题

Other Parts Discussed in Thread: ADS1282

我最近在用ADS1282,采集到的数据传到PC上应该怎么转为浮点数?比如说通过串口调试助手收到一个采样点的数据为 FF FF 9D 17,它的真实浮点数是多少呢?我知道ADC是以补码形式存的,是要将数据倒转为17 9D FF FF,再与上0xFF,再float()吗?还是什么样的?