Eagle PCB design question. Please Help!

On 4/15/2013 12:23 PM, Savio Galea wrote:

Dear all,

 

I am new to Eagle and I am current designing a PCB which have mixed

signals. It is a 4 layer design with Signal, Ground, Vcc, Signal. Since

I have an Analog ground and Digital ground, how can I create 2 ground

supply parts, ie AGND and DGND since when I am changing their name or

value, they are not seperating.

 

Please help me guys! Thanks!

 

--

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http://www.element14.com/community/message/74196#74196

Hello Savio,

First click on the letter i in the command button area, then click on

one of the ground plane borders.  The Properties Box will appear where

you can select the amount of isolation for each ground and also the

order of priority by setting the Rank.  Repeat for the second ground

plane and set Rank to the next higher number.  When you click Ratsnest

you will notice the two ground planes will be separated.

Best Regards,

Mike

Am 20.04.2013 23:22, schrieb Mike Malherbe:

On 4/15/2013 12:23 PM, Savio Galea wrote:

Dear all,

 

I am new to Eagle and I am current designing a PCB which have mixed

signals. It is a 4 layer design with Signal, Ground, Vcc, Signal. Since

I have an Analog ground and Digital ground, how can I create 2 ground

supply parts, ie AGND and DGND since when I am changing their name or

value, they are not seperating.

 

Please help me guys! Thanks!

 

--

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

http://www.element14.com/community/message/74196#74196

Hello Savio,

 

First click on the letter i in the command button area, then click on

one of the ground plane borders.  The Properties Box will appear where

you can select the amount of isolation for each ground and also the

order of priority by setting the Rank.  Repeat for the second ground

plane and set Rank to the next higher number.  When you click Ratsnest

you will notice the two ground planes will be separated.

 

Best Regards,

Mike

 

Additional I might say that you should use different symbols for

different grounds. Those can be found in the supply libraries. Of course

you can create them yourselves

--

Mit freundlichen Grüßen / With best regards

Joern Paschedag

Am 20.04.2013 23:22, schrieb Mike Malherbe:

On 4/15/2013 12:23 PM, Savio Galea wrote:

Dear all,

 

I am new to Eagle and I am current designing a PCB which have mixed

signals. It is a 4 layer design with Signal, Ground, Vcc, Signal. Since

I have an Analog ground and Digital ground, how can I create 2 ground

supply parts, ie AGND and DGND since when I am changing their name or

value, they are not seperating.

 

Please help me guys! Thanks!

 

--

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

http://www.element14.com/community/message/74196#74196

Hello Savio,

 

First click on the letter i in the command button area, then click on

one of the ground plane borders.  The Properties Box will appear where

you can select the amount of isolation for each ground and also the

order of priority by setting the Rank.  Repeat for the second ground

plane and set Rank to the next higher number.  When you click Ratsnest

you will notice the two ground planes will be separated.

 

Best Regards,

Mike

 

Additional I might say that you should use different symbols for

different grounds. Those can be found in the supply libraries. Of course

you can create them yourselves

--

Mit freundlichen Grüßen / With best regards

Joern Paschedag