AVR ADC 10 bit ,help me Опции

[vanduongbk]

I write program convert adc 10 bit and results to led ,it operates accuracy but i have a problem while simulation by protues ,it appears warning as below ,i dont know it operate or not in real circuit ,please help me

this is warning



and this is code



and I want to ask how I can transfer this 10 bit once time to pc through rs232

[vanduongbk]

and now i only use adc bit ,i transmit data to pc but how i can plot graph from this data which x -axis is time and y -axis is data in voltage
please help me in any programming as VB,VC ,matlab .....