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ADS1000A0IDBVR的configuartion register写入不成功的问题

按照下图时序,配置configuartion register,configuartion register默认是0x80,写入0x82后读出来还是0x80

 

    

写入方法:

 

       #1:直接使用linux命令   sudo  i2cset -y -f 1 0x48 0x82

 

       #2:  使用linux I2C应用层API  i2c_smbus_write_byte()

 

  以上两种方法返回状态均没有报错,但是就是写入不生效,写入0x82,读出来还是0x80.