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MC9S08PA's ADC of channel register setting

Question asked by Kris Ke on Oct 17, 2019
Latest reply on Oct 28, 2019 by Kris Ke

Dear 

 

I use CodeWarrior 11.1. I am a bit confused about the PE setting of IO_MAP.h of ADC channel.

 

The IO_Map.h show the ADCH0 is 0x01U, ADCH1 is 0x02U and so forth.

 

But the MC9S08PA4 Reference Manual, Rev. 6, show the AD0 of ADCH is 0, AD1 of ADCH is 1 and so forth.

 

if I want to get ADC value of AD0, how can I get it?

 

Is it use below 

 

ADC_SC1 = ADC_SC1_ADCH0_MASK;

 

or 

 

ADC_SC1=ADC_SC1_ADCH_BITNUM;

 

 

 

 

Kris

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