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You can use the automated solution in primetime, prime time ECO solution for fixing hold violations. either by swapping to higher vt cells or by adding buffers.
If you want to re-design and fix the issues by correct by construct, then you might need to add tighter skew constraint and balance the...
For hold analysis in general for the flops which are same phase we check the hold timing on the same edge i.e. zeroth edge and hence even if you increase or decrease the frequency your hold will not impact.
If you are having half cycle paths in the design rise to fall or fall to rise paths...
To implement full chip design it is more or less like the block level implementation. Here you might need to have greater understanding of the architecture of the design and very good understanding of many issues upfront. We can implement full-chip in flat as well as hierarchical. If it is less...
It is a good question. Infact macro placement can be either automatic or manual. In general manual placement is very efficient if you have few macro's to place and engineer is well aware of the connectivity and data flow diagram. If you have hundreds of macro's to place and not aware of data...
We are hiring Physical Design & STA Synthesis Lead for India (Bangalore) with 5 -10 Years of exp.
Also, we multiple onsite (Singapore/Taiwan) requirements for PD/STA engineers with minimum 3+ years experience.
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Hi,
We are looking to adapt the best in class IO placer in our ASIC design flow to replace the decade old internal solution. Any recommendation of IO placer tool which you folks use in the design flow. We want to adapt some of the best in class technology, so please suggest some of CAD...
It might vary from the company to company based on the technology you adopt.
Sorry, for 28nm technology I have mentioned wrongly, we have two adopted two technologies for 28nm :
One with 0.63u cell row height and other with 1.1u cellrow height.
Re: Doubt Regarding IR Drop Analysis
Your query is little bit unclear. I am assuming that you seeing drop on vdd_aon, where as adding switches will it help reducing the static IR drop?
Definitely, it will not reduce the drop on vdd_aon but drop will reduce on the vdd_sw net assuming you have...
Please check whether you are exporting the empty modules, (if yes, remove the empty modules).
PT requires that the INTERCONNECT delay for a net in the SDF be between a leaf cell pin and another leaf cell pin, such that a valid driver and load pin combination exist. When it encounters a net...
Based on the technology, if it is 65nm and below you need to align the pins (centre of the pins) of the macro with the centre of routing grid. If it is due to routing congestion, plan the enough routing channel in order tool to be able to route the nets.
Use Simple math : For example if you...
If both vcd and netlist are consistent you should not see any annotation issue.
grep in vcd the net which is not annotated.
Also, have you run legalize names before dumping the netlist?
Is that vcd file dumped using your post synthesis netlist or using the RTL file?
If you are using vcd file which is generated using the RTL file then definitely there are chances of some annotation issues, because some of the nets which are present in the RTL vcd may not be present in the post...
In general for the digital chips, we use the same ground across the IO and core.
You need to instantiate 1vdd_io,1vss pad for every 5 signals having 5:1:1 as the same ground is shared for the supplying the core vss as well.
Also, based on the power consumption and EM limit of the pad we will...
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