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CCS ADDiT
Guest
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| Convert float value into int,,,, |
 Posted: Sun Mar 05, 2006 8:48 am |
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I am using i2c MAX517(DAC) and i2C only accept 8 bits integer....
now I am trying to pass a float value...f=34.009
In fact..it is ok for to pass '34' as well....
how can I conver from float to int????
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Guest
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| Posted: Sun Mar 05, 2006 9:09 am |
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| Code: |
float head,temp0;
int wrhead;
head=65.68;
temp0=(head*990)/255; // Rescale
printf("\n\rHead is %2.2f",head);
printf("\n\rTemp0 is %2.2f",temp0);
wrhead=(int)temp0;
printf("\n\r Wr head is %2.2d",wrhead);
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the output is
Head is 65.67
Temp0 is 254.99
Wr head is -2
I was expecting wrhead to be 254...
How can I do that?? |
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Guest
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| Posted: Sun Mar 05, 2006 9:59 am |
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| Code: | int wrhead;
head=65.68;
[color=green]temp0=(head*245)/127; // Rescale [/color]
printf("\n\rHead is %2.2f",head);
printf("\n\rTemp0 is %2.2f",temp0);
wrhead=(int)temp0;
printf("\n\r Wr head is %2.2d",wrhead);
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the output is
Head is 65.67
Temp0 is 126.70
Wr head is 126 |
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Guest
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| Posted: Sun Mar 05, 2006 10:00 am |
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Well, it is -2 in two's complement. Try this:
printf("\n\r Wr head is %u",wrhead);
It should print it as an unsigned int. |
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