On spc560b MCU,I use PE [7] as ADC input,But why can't I read the analog quantityThere is no problem with the hardwareHow to configure the software part

I want to use the PE7 pin of SPC560B to detect analog quantity​This requires reusing it as an ADC input pin​How should I configure him?

I am configuring the receiving filter of Flex CANHow to make it recognize only part of the IDFor example, the receiving ID is 0x123456You only need to identify 345 to consider the match successful