把原子大哥的内部温度传感器的代码中的ADC1仅修改成用ADC2采集，其它设置不变，结果不能正确采集数据。。。。
ADC1采集：
Internal temperature is: 40.726074 'C
Internal temperature is: 40.913425 'C
Internal temperature is: 40.913425 'C
Internal temperature is: 40.913425 'C
Internal temperature is: 40.726074 'C
Internal temperature is: 40.913425 'C
Internal temperature is: 40.913425 'C
Internal temperature is: 40.913425 'C
Internal temperature is: 40.913425 'C
Internal temperature is: 40.726074 'C
Internal temperature is: 40.913425 'C
Internal temperature is: 40.913425 'C


修改成ADC2后：

Internal temperature is: 357.183411 'C
Internal temperature is: 357.183411 'C
Internal temperature is: 357.183411 'C
Internal temperature is: 357.183411 'C
Internal temperature is: 357.183411 'C
Internal temperature is: 357.183411 'C
Internal temperature is: 357.183411 'C
Internal temperature is: 357.183411 'C
Internal temperature is: 357.183411 'C
Internal temperature is: 357.183411 'C