changind BB vias to Thru hole

[kumaran]

Hi All,,

There is an board (allegro) with BB vias and thru hole vias...i need to change all the BBvias to thru hole bcos of the cost...could u pls tell me a way to trace the BBvias in the board...now am manuallly checking each n every vias in all layers and changing it to thru hole..Pls reply me soon.....

Thanks
Kumaran.


Its you who decides your future.
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[Prapat]

You can change Padstack in allegro PCB by go to
Tool---> Padstack--->Replace
and then select BB via replat to Thru hole via.

any question can mail to me.
prapatset@se-ed.net

[kumaran]

pat,

Great! it works fine...i was doing it manually for three days..ohh this works in minutes..Thanks for your reply...

Thanks,
Kumaran.

Its you who decides your future...
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[cadpro2k]

Hi Kumaran,

You can also do it using the SKILL code replace_via.il This is a more selective way of doing it instead of replacing ALL the BB to TH. With replace_via you do a window around only the vias you want to change, and can change them from BB -> TH. Either way.

Good day.

Mitch

[kumaran]

Hi Mitch.,

could u pls tell me the way to implement the skill code you have given?..i dont have any idea abt skill codes...pls reply me...

Regards
Kumaran

Its you who decides your future..
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[cadpro2k]

[QUOTE]Originally posted by kumaran
could u pls tell me the way to implement the skill code you have given?..i dont have any idea abt skill codes...pls reply me...
QUOTE]

Do you have access to Cadence Sourcelink, their online help support? You need access to get the SKILL code. You just need any of their software with current maintainence to get access to Sourcelink. Let me know if you do, and I'll tell you how to set up your SKILL routines.

Mitch

[kumaran]

yes mitch we do have the support...thanks for your effort...

Regards,
Kumaran

[cadpro2k]

Hi Kumaran,

To get this to work is pretty easy.

1) Download the SKILL code from Sourcelink

http://www.cadence.com/sourcelink

go to RELEASES in the left side, grey section of the site
click on PCB DesignInformation, Videos... (in red print under Releases)

log in. email address and sourcelink password.

Download all the allegro SKILL file and store them somewhere on your system. (I normally put them in a folder called 'skill' within my pcbenv folder.

2) create an allegro.ilinit file (inside the pcbenv folder)
something to look like:

;------------cut this line off----------
load "c:/apps/cadence/psd_14.2/pcbenv/skill/nc_tools.il"
;another NC Drill generator

load "c:/apps/cadence/psd_14.2/pcbenv/skill/hl_ntp.il"
;hilight pads with no test point coverage

load "c:/apps/cadence/psd_14.2/pcbenv/skill/conv.il"
; conv MILS - MM

load "c:/apps/cadence/psd_14.2/pcbenv/skill/replace_via.il"
; replace vias by area selection

load "c:/apps/cadence/psd_14.2/pcbenv/skill/dsht.il"
;access datasheets from selecting components

load "c:/apps/cadence/psd_14.2/pcbenv/skill/Rename_Ref_Des.il"
;Renames the reference designators
;------------cut this line off----------

That's it. Point your C:/ location to where you have the skill files stored, and you're ready.

3) start allegro.

type conv (inside allegro) and see if the conversion GUI pops up.

Good day.