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Main -> Hookup -> [DFT] Scan Inertion Issues
  • 17.09.2019
  • by Maugore
  • 2 comments

[DFT] Scan Inertion Issues

Basics of DFT in 10 minutes

Question: in the case you described, why did the scan enable have to be shared in order to define with a hook-up pin? A hook up is defined since the scan enable is shared, it is not the other way around. When the scan enable is shared it cannot be directly controlled from the primary inputs. A hook up is a pin which would virtually act as the scan enable in scan mode. When the scan enable is not share you do not need a hook up pin. I understand that when the scan enable is shared, it can be used for other purposes during functional mode, but in test mode, it has to be held at 1 during shift and 0 during capture.

To enable this feature, you need to disable the scan connection and enable the.

This is accomplished by using the following command:. Read a ddc or Verilog netlist or continue in the same run after compile. If you are using a Verilog netlist, set the attribute to activate the.

Automatic Identification of the clock-gating cells inserted by Power Compiler. When using a Verilog netlist, set the clock-gating style and check that all. If hookup needs to be done on an internal pin, use.

“scan mode” by setting an input pin to an appropriate value. In this mode all these multiplexer, we can hook up a scan chain to test various portions of the die.

If hookup needs to be done on a port, the -port name in the following. Try to read. Please try the following steps: a We can trace the 'CP' of DFF and check whether it is controllable by the primary input.

Hook up pin in dft

Please let me know if this helps. See I have to stictch the test enable of clock gating cell to scan enable pin So this is not working But If I hook up the pin thn it is solved As we discussed, reidentify clock-gating cells to the tool.

In my log there is not any TEST warning Team delivering.

DFT Compiler Default Scan Synthesis Approach. Specifying a Hookup Pin for DFT-Inserted Clock Connections Requirements for Valid. Design for Testability with DFT Compiler and TetraMax ??? Hot Line: (03) Introduction -- Pins/Gates TTL logic allowed easy access to. SE -hookup BUF /Z Instantiate a clock-tree buffer in the HDL description, or build. Note: The term hookup-pin could be particular to Mentor tools.

If possible, ask for a. Now we only have. If you manually connect the test pin to top level, then no violations will be reported.

Can you please share the exact command line? Thn all the clock gating cell te pins are connected to particular dedicated clock gated port.

hookup-pin is considered by the tool as the source of scan enable and will assume that this pin is directly controllable from a primary input -hookup_pin [ find / -pin dft_fix/Z] -active high TOP/dft_fix/Z (if using an internal pin for. Hook up pin in dft, This multiplexer allows a chip, Tech design forum techniques; Design for Testability with DFT Compiler and TetraMax ??? Hot Line: pins. DFT Compiler Test-Ready or Unmapped Flow. DFT Compiler Existing Scan Flow. Valid Internal Pins Hookup Locations.

I am not understanding that. I am not getting any test warning Can I know whay you are more concentrating on the test warning?

Hookup pin dft

Re: [DFT] Scan Inertion Issues Since you tell that you are able to connect, I am assuming that now the tool is able to infer the clock gating cells in the design. Have you manually connected the 'TE' pins to desired top-level ports? Please check whether the top level connection is already there in clock gate enable pins.

TEST warnings comes in this case. Originally Posted by assud.

Basics of DFT in 10 minutes

Since you tell that you are able to connect, I am assuming that now the tool is able to infer the clock gating cells in the design.

How you made the tool identify clock gating cells? I am slo thinking that.

?4?20? the insert_dft command to hookup the clock-gating test pins. Use the command set_dft_configuration -connect_clock_gating enable | disable. Dft hookup pin - Want to meet eligible single woman who share your zest for life? Indeed, for those who've tried and failed to find the right man offline, internet. [DFT] Scan Inertion Issues in DFT Compiler If the netlist is without scan controllable pin for clock gating cells, then I guess you will be getting some violations like 'clock not controllable But If I hook up the pin thn it is solved.

We need info about clock gating cells Part and Inventory Search. Welcome to EDABoard. Design Resources.

What does hookup-pin mean?

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