Actions
Forum Thread Details
  • Replies 26 replies
  • Subscribers 173 subscribers
  • Views 3387 views
  • Users 0 members are here
Related

Testpoints for ICT testers

Former Member

Is there a way to systematically insert ICT testpoints onto a PCB layout

without putting a testpoint component on each net on my schematic?

Ideally I'd like to know the percent of nets covered by testpoints and

have someway to highlight or locate nets without a testpoint so I can

either add one or can decide that the particular net isn't worth the

trouble to test.

 

-Michael

 

 

Parents

  • On 12/27/2010 05:35 PM, Michael Sansom wrote:

    Is there a way to systematically insert ICT testpoints onto a PCB layout

    without putting a testpoint component on each net on my schematic?

    Ideally I'd like to know the percent of nets covered by testpoints and

    have someway to highlight or locate nets without a testpoint so I can

    either add one or can decide that the particular net isn't worth the

    trouble to test.

     

    -Michael

     

     

    You could close the schematic, and then ADD the package for your

    testpoint to the board, define an electrical connection with the SIGNAL

    tool, and then route the test point with the ROUTE tool.  When you next

    open the schematic, Eagle will complain that the schematic and board are

    not consistent, so you should only do this on a copy of your board---try

    to integrate this with your version control system.

     

    In order to verify that the test points cover all nets, you could use a

    user-language program that will tell you the percentage covered and list

    the nets that are not covered.  If you can't find an uncovered net, you

    can use the SHOW command to find it.

     

    -Dave

     

Reply

  • On 12/27/2010 05:35 PM, Michael Sansom wrote:

    Is there a way to systematically insert ICT testpoints onto a PCB layout

    without putting a testpoint component on each net on my schematic?

    Ideally I'd like to know the percent of nets covered by testpoints and

    have someway to highlight or locate nets without a testpoint so I can

    either add one or can decide that the particular net isn't worth the

    trouble to test.

     

    -Michael

     

     

    You could close the schematic, and then ADD the package for your

    testpoint to the board, define an electrical connection with the SIGNAL

    tool, and then route the test point with the ROUTE tool.  When you next

    open the schematic, Eagle will complain that the schematic and board are

    not consistent, so you should only do this on a copy of your board---try

    to integrate this with your version control system.

     

    In order to verify that the test points cover all nets, you could use a

    user-language program that will tell you the percentage covered and list

    the nets that are not covered.  If you can't find an uncovered net, you

    can use the SHOW command to find it.

     

    -Dave

     

Children
No Data