When designing a PCB, it is often desirable to add TestPoints for ICT probing. There are various ways to do this, but the most economical is to place TestPoints on the Bottom Side of the PCB, allowing for the 'pogo-pins' to make contact with pads on the PCB. This allows for testing the completed Printed Circuit Assembly while powered.
DBX2NNR is a program that aids the PCB Designer by scanning the PCB Design, and creating a list of Nets that need Bottom-Side TestPoints, or bottom and top side Testpoints - for Clam-Shell Testing. DBX2NNR also goes one step further and generates an ECO with Testpoints in it for placement in the PCB Design. This allows the Designer to add TestPoints quickly to Nets that need probe points on the Bottom (or Top) Side of the PCB.
DBX2NNR can save a designer many hours of tedious manual labor, since it is a computer program and can complete the task much quicker.
DBX2NNR is a 32-bit program that runs in a Windows 95/98/XP environment, and works with the latest Version of P-CAD.
DBX2NNR uses the ACCEL DataBase eXchange (DBX) Interface to communicate with the application, and therefore requires P-CAD 200x PCB to be running, as well as the ACCEL DBX Development files to be installed from the ACCEL EDA CD.
The example file shown below, is the result of running DBX2NNR.
TP_RefDes NetName TP1 D01-01 TP2 D02-02 TP3 D04-02 TP4 D05-02 TP5 D06-02 TP6 GEN_SHUNT TP7 IBAT TP8 J05-02 TP9 J05-07 TP10 J05-11 TP11 P03-04 TP12 P04-04 TP13 P05-06 TP14 P06-06 TP15 P07-01 TP16 P07-06 TP17 Q01-D1 TP18 Q02-S TP19 Q03-S TP20 Q04-S TP21 Q05-01 TP22 Q06-01 TP23 Q07-01 TP24 Q11-01 TP25 Q12-01 TP26 Q13-01 TP27 Q14-G TP28 Q15-G TP29 Q16-G TP30 Q17-01 TP31 R11-02 TP32 R37A-01 TP33 R39A-02 TP34 R42A-02 TP35 R54-01 TP36 SOLAR_VOLTS TP37 SOLAR_VOLTS_MON TP38 U01-01 TP39 U01-02 TP40 U01-03 TP41 U01-04 TP42 U01-09 TP43 U01-10 TP44 U02-11 TP45 U04-04 TP46 U05-03 TP47 U05-04 TP48 VIN