How to transform a 10bit int into two 8bit byte ?

[Mathy]

Hello !

I need to transform a 10bit int from an ADC into two 8bit byte to transmit it over RS232.

How to transform this and how to rebuild the 10bit int with the two 8bit byte ?

Thanks a lot for your help,

Mathy

[Spanish_dude]

Hi,

I would do something like this :

higher_byte = (ADC_value & 0xFF00) >> 8
lower_byte = (ADC_value & 0xFF)



EDIT:

To rebuild the value after reading it from the rs232 :

ADC_value = higher_byte << 8 | lower_byte

[Mathy]

Thank you for your reply.

I just try in simulation with Flowcode and it works just perfect

Thanks again

[Mathy]

in fact, what do the "|" sign mean ?

[Steve]

Hi Mathy,

There's a great article about this kind of thing here:
http://www.matrixmultimedia.com/mmforum ... =26&t=7451

By the way, the "|" symbol means a bit-wise OR operation. In the example, you can also use a "+" operation.

[medelec35]

Hi Mathy,
Take a look at:
http://www.matrixmultimedia.com/mmforum ... igh#p20779
It covers both
10bit into two 8bit
and
From two 8bit into 10bit

I don't disagree with anything posted so far, I just thought would add my 2p worth
,
Martin

Edit. Just read article Steve mentioned. It's definitely worth reading.... Thanks for the link

[Mathy]

Many thanks to all of you