PIC interface with temperature sensor LM35

sysysy said:

Hi,

May i know it is allow to use only 1 of the Port A pin (channel 0 to read the adc), then the remaining Port A pins to control my motor?

Problem Encountered:

when i only use PIN_A0 interface with the output of LM35, my LCD show me valid temperature result. (29 Celcius or 61 Resolution number.)

But when i enable my motor control pins that also use in Port A, then the temperature result become not correct. I wonder why this could happen

following is my setup:

Code:

   set_tris_A(1) ;                 //only pin_a0 to be an input 
   output_A(0) ;                  //set all pins to 0 value by default 
   setup_adc(ADC_CLOCK_INTERNAL); //use internal clock 
   setup_adc_ports(0xE);          //use only pin_a0 as analog input 
   set_adc_channel(0);            //set pin_a0 as adc channel

Anyone can point out my setup problem?

Thanks,

sysysy

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