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floating point calculations on AT89s8252

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dnarenderreddy

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hi all, i want to calculate the result of the expression

ah = (range * count*10*resolution)/(3600*1000);

and later add it to the previous value of it
ahfinal = ahfinal + ah;


in brief to explain what i want actually is: count is the count of pulses on timer/counter , now these pulses are caliberated as

range ------> 1000 pulses
xxxx -------> count pulses

now these are to be cailberated into one hour

so ah = xxxx/3600;
now i need a resolution of (1 or 2 or 3 decimals depending on the variable resolution. next the final result should be integrated( i mean added to its previous value ahfinal = ahfinal+ah)


here
range (25, 75,100)
resolution(1, 2, 3)
count(some bog number assume around 1000).

i dont know how to deal with floating point values in microcontroller programming. can anyone help me

thanks in advance
narender
 

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