2's complement

[Christian_nor]

Sorry about that...

I think this one should work:

[wha@atmel]

hi again,

your vi works perfect  -  both ways ........... - no comment neccesary.

Werner

P.S. For poeple with   ADC's and Uni/Bip.- mode.... my old styled vi attached with 16 bit resolution

[altenbach]

Many times, the 12 bit 2s Complement is not a boolean array, but contained in e.g. a single 16 bit Integer. In this case, you don't need to jump through all these hoops converting to a boolean array, etc.

You can just do the bit operations directly as shown in the attached VI (LabVIEW 7.0). Seems much more efficient. 🙂

(VI is not fully tested, please verify correct operation. You might want to add an error condition if any of bits 13-16 are set).

[Xu]

Here is a modified version of Altenbach's 16 bit Integer version. the same idea as my boolean array version posted above. I think the algorithm is more simple and faster.

Xu

[Xu]

Here is a modified version of Altenbach's 16 bit Integer version. the same idea as my boolean array version posted above. I think the algorithm is more simple and faster.

Xu

[thomasAnder]

Nice but you did not drop the sign bit

[Yamaeda]

[carlod80]

my two cents to raise the thread from the dead

works for arbitrary bit sizes

[thomasAnder]

I have attached a 12 bit 2s complement I used for temperature senor TMP100. The Negative numbers are represented in binary twos complement format and has a resolution of .0625C per count.

[wiebe@CARYA]

Is this the same result? No, not exactly.

It's the same except for 0x800, that value (-0?) gives a bad result.