AVR-Chat

yes, this is really not a good approach - using floating point.

Suggest you get assistance from avrfreaks.net, user forum.


--- In AVR-Chat@yahoogroups.com, "Cat" <catalin_cluj@...> wrote:
>
> I can’t say what’s wrong at first sight, but did you try it with integers instead of floats?
> It might be easier on the compiler, maybe debugger?
> 
> Also, disabling all optimization might help the debugger.
> 
> Good luck,
> 
> Cat
> 
> From: rastavibration86 
> Sent: Friday, August 12, 2011 4:35 AM
> To: AVR-Chat@yahoogroups.com 
> Subject: [AVR-Chat] Simple Binary to Decimal conversion code not working!!!
> 
> Hi!
> I have a problem with this source code which is going to run in ATmega1284P.
> It is a part of another source code, but this simple part is not working and I can not find the reason.
> I am using AVR Studio and I have used both AVR Simulator and AVR Simulator 2 as debug platform and I have also tried with JTAGII. I obtain the same results: nothing.
> 
> The problem is that no proper conversion is done and when executing:
> 
> Dec = Dec + binarypower;
> 
> Debug seems not to be working any more.
> Here is the source code. I know it is too simple and that's why I can't understand why it is not working as expected.
> Looking forward for your help. Thanks a lot!
> 
> #include <avr/io.h>
> #include "BitOperationMacros.h"
> 
> 
> float Power(float, int);
> float Bin2Dec(uint8_t, int);
> 
>  
> int main(void)
> {
> 
> float Decimal = 0;
> uint8_t V = 0x0B;
> Decimal = Bin2Dec(V, 8); 
> return 0; 
> }
> 
> 
> float Power(float base, int exponent)
> {
> float volatile result=1;
> for(int i=1; i<=exponent; i++)
> {
> result = result*base;
> }
> return result;
> }
> 
> float Bin2Dec (uint8_t Value, int nbits)
> {
> float volatile Dec = 0;
> int volatile i=0;
> float volatile binarypower=0;
> while(i<=(nbits-1))
> {
> if(CHECKBIT(Value,i) == 1)
> {
> binarypower=Power(2.0,i);
> Dec = Dec + binarypower;
> }
> i++;
> }
> return Dec;
> }
> 
> 
> 
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