v6.4 Allows Delete of Footprint with No E lectrical Connection

James Morrison wrote on Tue, 15 January 2013 13:16

Hello,

 

I have a non-plated mounting hole device in my library.  This has no

electrical connections but includes holes, keepout regions, silk screen,

and other features.

 

EAGLE V6.4 (haven't tested in older V6 versions) allows me to delete

the footprint in the PCB editor.  I know this wasn't allowed in V5.  Not

sure why it is now.  The device isn't deleted from the schematic so now I

have a schematic with this device (named MH1) but the PCB doesn't have

these device. 

 

But worse, the ERC doesn't report this as an error!

 

Consistency at a minimum, in my mind, means that the netlist and BOM

are equivalent.  But in this case the BOM is not the same.  2 things

should be fixed:

 

1)  Deleting a footprint associated with a device should not be allowed

to be deleted in the PCB, even if there is no electrical connections.

 

2)  The ERC should catch this as an error.

OK, I take that all back.  What happens is that the device is deleted in

the schematic when I delete it in the PCB.  I wasn't expecting that to

happen and it's a nice surprise.

It appears that it is now allowed to delete devices in the PCB if there is

no electrical connections.  It still won't allowed deleting a footprint

that has an electrical connection.

So it is behaving OK.  I'm not sure if this was in V6 previously or not but

it's OK by me.

James.

--

James Morrison  ~~~  Stratford Digital

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"James Morrison" <james@eaglecentral.ca> a écrit dans le message de news:

kd46od$8en$1@cheetah.cadsoft.de...

James Morrison wrote on Tue, 15 January 2013 13:16

>> Hello,

>>

>> I have a non-plated mounting hole device in my library.  This has no

>> electrical connections but includes holes, keepout regions, silk screen,

>> and other features.

>>

>> EAGLE V6.4 (haven't tested in older V6 versions) allows me to delete

>> the footprint in the PCB editor.  I know this wasn't allowed in V5.  Not

>> sure why it is now.  The device isn't deleted from the schematic so now I

>> have a schematic with this device (named MH1) but the PCB doesn't have

>> these device.

>>

>> But worse, the ERC doesn't report this as an error!

>>

>> Consistency at a minimum, in my mind, means that the netlist and BOM

>> are equivalent.  But in this case the BOM is not the same.  2 things

>> should be fixed:

>>

>> 1)  Deleting a footprint associated with a device should not be allowed

>> to be deleted in the PCB, even if there is no electrical connections.

>>

>> 2)  The ERC should catch this as an error.

>

OK, I take that all back.  What happens is that the device is deleted in

the schematic when I delete it in the PCB.  I wasn't expecting that to

happen and it's a nice surprise.

 

It appears that it is now allowed to delete devices in the PCB if there is

no electrical connections.  It still won't allowed deleting a footprint

that has an electrical connection.

 

So it is behaving OK.  I'm not sure if this was in V6 previously or not but

it's OK by me.

It's not OK for me!

I found this new feature extremely dangerous!!!

I think there should be an option or at least a warning

before to delete definitely the component from the brd.

Christian Bohrer

"James Morrison" <james@eaglecentral.ca> a écrit dans le message de news:

kd46od$8en$1@cheetah.cadsoft.de...

James Morrison wrote on Tue, 15 January 2013 13:16

>> Hello,

>>

>> I have a non-plated mounting hole device in my library.  This has no

>> electrical connections but includes holes, keepout regions, silk screen,

>> and other features.

>>

>> EAGLE V6.4 (haven't tested in older V6 versions) allows me to delete

>> the footprint in the PCB editor.  I know this wasn't allowed in V5.  Not

>> sure why it is now.  The device isn't deleted from the schematic so now I

>> have a schematic with this device (named MH1) but the PCB doesn't have

>> these device.

>>

>> But worse, the ERC doesn't report this as an error!

>>

>> Consistency at a minimum, in my mind, means that the netlist and BOM

>> are equivalent.  But in this case the BOM is not the same.  2 things

>> should be fixed:

>>

>> 1)  Deleting a footprint associated with a device should not be allowed

>> to be deleted in the PCB, even if there is no electrical connections.

>>

>> 2)  The ERC should catch this as an error.

>

OK, I take that all back.  What happens is that the device is deleted in

the schematic when I delete it in the PCB.  I wasn't expecting that to

happen and it's a nice surprise.

 

It appears that it is now allowed to delete devices in the PCB if there is

no electrical connections.  It still won't allowed deleting a footprint

that has an electrical connection.

 

So it is behaving OK.  I'm not sure if this was in V6 previously or not but

it's OK by me.

It's not OK for me!

I found this new feature extremely dangerous!!!

I think there should be an option or at least a warning

before to delete definitely the component from the brd.

Christian Bohrer