应用MSP430G2553与ADS1120检测K型热电偶温度,连接如图示
设定方式:AINp=AIN0,AINn=AIN1,连续模式,PGA=64,内部参考电压,
现象:不加热热电偶第一次读数0x8050,第二次以后0xC050
加热热电偶,读数从0xC0XX开始增加
问题:输入为正,怎么读数为负?
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应用MSP430G2553与ADS1120检测K型热电偶温度,连接如图示
设定方式:AINp=AIN0,AINn=AIN1,连续模式,PGA=64,内部参考电压,
现象:不加热热电偶第一次读数0x8050,第二次以后0xC050
加热热电偶,读数从0xC0XX开始增加
问题:输入为正,怎么读数为负?