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/*
* ASCII.c
*
* Created on: 31 Aug 2020
* Author: avi
*/
// Convert ASCII HEX to decimal
int ASCII_Hex_To_Decimal(char hexVal[], int len)
{
int i = 0;
// Initializing base value to 1, i.e 16^0
int base = 1;
int dec_val = 0;
// Extracting characters as digits from last character
for (i = 0; i < len - 1; i++)
{
// if character lies in '0'-'9', converting
// it to integral 0-9 by subtracting 48 from
// ASCII value.
if (hexVal[i] >= '0' && hexVal[i] <= '9')
{
dec_val += (hexVal[i] - 48)*base;
// incrementing base by power
base = base * 16;
}
// if character lies in 'A'-'F' , converting
// it to integral 10 - 15 by subtracting 55
// from ASCII value
else if (hexVal[i] >= 'A' && hexVal[i] <= 'F')
{
dec_val += (hexVal[i] - 55)*base;
// incrementing base by power
base = base * 16;
}
}
return dec_val;
}
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