How to Convert a Project From CDB to OAFull description
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10/22/13
Microelectronics Students' Group » Documentation » How to convert a project from CDB to OA
Microelectronics Students' Group hands-on integrated-circuits design Home Forum Documentation Private area Tutorials Workshops
How to convert a project from CDB to OA What is CDB and OA Although this is a simple task, it can be a headache to figure how it is done. This tutorial was already tested with the following conversions: AMS HiT-KiT 3.70 (Cadence IC5) to AMS HiT-HiT 4.00 (Cadence IC6) First things first we should define what is CDB and what is OA!!! These two acronyms are two database formats. The CDB stands for Cadence DataBase, and OA means Open Access. Like the name of each one indicate the CDB is a proprietary format of Cadence Design Systems, while the OA is an open format. Open Access was a effort made between several electronic companies community to improve the interoperability between their projects.
How to perform the conversion The example present next, uses the HiT-KiTs AMS 3.70 and 4.00 to explain the conversion process although it should work with other FDK (Foundry Design Kits). Let us consider that we have a project already made with the AMS HiT-KiT 3.70 in Cadence IC5, and this project is located in: ~/projects/austriamicrosystems/freq_synthethizer
The first step is to create a new project with the AMS-HiT-KiT 4.00. Let us consider that this new project is created in: ~/projects/austriamicrosystems/hit-kit-4.00/freq_synthethizer_oa
Then in the CIW (Command Interpreter Window) i.e., the Cadence main window, select the menu Tools, option Conversion Tool Box like it is shown in the following figure:
The conversion tool box window will appear. Then press the option CDB to Open Access Translator.
wiki.usgroup.eu/wiki/public/tutorials/cdb2oa
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10/22/13
Microelectronics Students' Group » Documentation » How to convert a project from CDB to OA
The CDB to Open Access translator window will pop-up, where we can see the path to the cds.lib file of the AMS-HiT-KiT 3.70 version highlighted. The CDB to Open Access translator reads the cdb.lib file and displays the available libraries for translation. Just select the ones to be translated and press OK. And voilà, you now have you project translated to Open Access. Just check the CIW window to see if there were any problems during conversion.
Known problems and solutions The CIW window says that one or more libraries are locked. Lets assume that the cell view vco_control of the library ndivider from our previously converted project has its schematic locked. To unlock it go to following path ~/projects/austriamicrosystems/freq_synthethizer/charge_pump/vco_control/schematic
and delete the sch.cdb.cdslock file. After deleting the file, run the simulation again and the problem should be solved. If the same problem occurs go to all the the cell view directory and delete all the sch.cdb.cdslock if any. public /tutorials /c db2 oa.txt · L as t modified: 2 0 0 9 /0 7 /0 3 1 5 :5 8 by doliveira
