ADC in atmga8

How to convert hexadecimal to decimal???
i m using this equation ((((ADCH*256)+ADCL)*5)/1024) to get decimal value...but not giving...Is there any other equation?

How to convert hexadecimal to decimal???
i m using this equation ((((ADCH*256)+ADCL)*5)/1024) to get decimal value...but not giving...Is there any other equation?

vijay.parmar1992

There may be some confusion here.
The value in ADCH and ADCL is a binary representation of a number.

(ADCH*256)+ADCL will give the right value , assuming the result has not been shifted
by the ADC.
Left or right shifting of results is an option on PICs, I don't know about AVR.

hex or decimal is just a representation. It doesnt make any sense to a variable. for example,

a = 0x10 is same as a = 16

for variable a it does not matter you are writing in hex/decimal. If you are displaying it on lcd/sending on uart etc, only then it becomes significant thing.

But if you are talking about BCD (binary coded decimal) that becomes different. for example
a = 0x10 becomes a = 0x16 in BCD
So these conversions depends on the use case of your program. Hope you get my idea now.