Bit shifting, again!

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hey guys,

still learning here, , not great @ these bitwise operations. have protocol specifies data sent 2 bytes, 2 significant bits of byte reserved. is, 2 first bits must zero. 00111111 valid, 11111111 not.

that said, they're still 2-byte values. how spit out value given int? 4095, presume (12 bits total). want send 1000 example, 00000111 00101000. how do programmatically in code?

thanks!

would this?

int = 1000;

int msb = a&0x0fc0 >> 6;
int lsb = a&0x003f;

or that?

thanks!


Arduino Forum > Forum 2005-2010 (read only) > Software > Syntax & Programs > Bit shifting, again!


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