TL;DR
On Fri, Feb 8, 2013 at 9:08 AM, roelof 't Hooft <roel...@itholland.nl>wrote:
> I am using the following in a header file :
>
> #define crystal 11059200
> #define bd4800 (256 - crystal / 192 * 4800)
>
> Here the result is 0xef854100
>
Based on the order of precidence, this looks like the right answer to me:
11059200/192 = 57600
57600*4800 = 276480000
256-276480000=0xFFFFFFFFEF854100
>
> #define crystal 11059200
> #define bd4800 (256 - (crystal / 921600))
>
> And here the (correct) result is 0xf4
>
If this is the answer you're expecting, you'd want to use:
#define bd4800 (256 - crystal / (192 * 4800))
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