RE: UCHAR to BitArray conversion

[<peter.owens@stfc.ac.uk>]

Is your device sending this data as a stream of bytes (eg over a serial line)?

If so I would suggest you use stream device to parse your input into 5 mbbiDirect records.

What do you want to do with the “bit array”?

 

 

From: tech-talk-bounces@aps.anl.gov [mailto:tech-talk-bounces@aps.anl.gov] On Behalf Of ishita bhatia
Sent: 25 June 2015 12:18
To: Ralph Lange
Cc: EPICS Tech-Talk
Subject: Re: UCHAR to BitArray conversion

 

Hello,

 

How can i get output of mbbiDirect record in form of bitArray ? Is there any record available in VDCT to get such output.

To get understanding of mbbiDirect record i tried following:

 

I have taken a decimal value (for eg.4 ) in ai record. This value is given as input in mbbiDirect record (for eg. bits). Now when i run ioc, i give command

caget bits.B0

 I get output as 1 i.e. just one bit of 100(binary of 4). then when I run caget bits.B1, i get output 0...same caget bits.B1 gives 0.

but as this mbbiDirect gives bit by bit output, i wan't to get output in form of bitArray.

My main requirement is i am getting output from waveform record as waf 4 50 66 64 51(this is the output which i have got from VME using asyn record )which i wan't to convert in binary or bitArray form. So kindly suggest me how to do it without code or even if I create a device support how will i fetch this data (waf 4 50 66 64 5)from VDCT to device support to create the logic.