Differential Bus Naming Issue

On 17/12/2015 9:22 a.m., Alan Stummer wrote:

For example, buses are named D[0..7], resulting in D0, D1, ... D7.

Differential buses have _P and N appended, resulting in D0P, D0_N, ...

D7_P, D7_N. I can name individual nets with this format. However, when I

try to make a bus and give it the name D[0..7]_P,D[0..7]_N, Eagle throws

an error saying "Unexpected '_' ", meaning that the underscore is

invalid. The work-around is to not use a bus, just a cluster of nets

beside a thick blue line.

This format was taken from various places including

http://www.element14.com/community/message/37820/l/differential-pair-signals-and-buses#37820

(/message/37820/l/differential-pair-signals-and-buses#37820), right from

the horse's mouth. It says "+To be able to define a differential pair

bus, the bus naming convention will be extended to allow the ']' to be

followed by "_P" or "_N" which results in the individual net/signal

names ABC0_P, ABC1_P, ..., ABC31_P+". Doesn't work.

Am I doing something wrong?

 

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Hi

Your only mistake is interpreting that the functionality came to be.

The quote was a statement of intent that was never implemented.

The writer was one of the original creators/owner of Eagle and that post

was about the time Eagle was sold to E14 so the work was not done by the

new owner. There was a lot of discussion on the Cadsoft forum at that

time as how to move forward with Eagle. Another discussion was the value

of making 32 layers available. That idea did make the cut as you will know.

HTH

Warren

On 17/12/2015 9:22 a.m., Alan Stummer wrote:

For example, buses are named D[0..7], resulting in D0, D1, ... D7.

Differential buses have _P and N appended, resulting in D0P, D0_N, ...

D7_P, D7_N. I can name individual nets with this format. However, when I

try to make a bus and give it the name D[0..7]_P,D[0..7]_N, Eagle throws

an error saying "Unexpected '_' ", meaning that the underscore is

invalid. The work-around is to not use a bus, just a cluster of nets

beside a thick blue line.

This format was taken from various places including

http://www.element14.com/community/message/37820/l/differential-pair-signals-and-buses#37820

(/message/37820/l/differential-pair-signals-and-buses#37820), right from

the horse's mouth. It says "+To be able to define a differential pair

bus, the bus naming convention will be extended to allow the ']' to be

followed by "_P" or "_N" which results in the individual net/signal

names ABC0_P, ABC1_P, ..., ABC31_P+". Doesn't work.

Am I doing something wrong?

 

--

To view any images and attachments in this post, visit:

http://www.element14.com/community/message/169535

 

Hi

Your only mistake is interpreting that the functionality came to be.

The quote was a statement of intent that was never implemented.

The writer was one of the original creators/owner of Eagle and that post

was about the time Eagle was sold to E14 so the work was not done by the

new owner. There was a lot of discussion on the Cadsoft forum at that

time as how to move forward with Eagle. Another discussion was the value

of making 32 layers available. That idea did make the cut as you will know.

HTH

Warren