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25 Threads found on edaboard.com: Toggle Coverage
Hi, all, I was try to get good toggle coverage for my design!!! Here were some reports from VCS ----------------------------------------- MODULE top.mydesign.sub_design_1 // Net coverage // Name toggled 1->0 0->1 mpu_addr (...)
What's the Significance of toggle coverage in Code coverage. Why we need toggle coverage. What's the use of this and Where is the application.
what do you mean?function coverage?VCS provides four types of coverage analysis in functional simulation: line or statement coverage FSM coverage toggle coverage condition coverage
Modelsim also provide code coverage covering statements, branch, expression and toggle coverage. I find it quite user friendly, just need to compile with the coverage options that you want and then simulate by turning on coverage, interactively or script driven.
My design run with VCS 7.0 report toggle rate is 0. The cm.log message is following : Starting toggle coverage for module RM5012_SIM_TOP.RM5012.TOP.RM5012_TOP_ROM : Starting toggle coverage for module RM5012_SIM_TOP.RM5012.TOP.RM5012_TOP_ROM.u_dafilter_top : Starting toggle (...)
hi everyone, i have return one simple code in verilog now i want to see the code coverage for the same can anyone guide me which command we need to execute in batch mode to add code coverage and to view the same. first compile the file with cover option b?Collect branch statistics. c?C
Hello, I want to exclude bits in toggle coverage. I m working on cadence (iccr) tool. I used this "set_toggle_excludefile" command in coverage configuration file has .ccf extension. I created two file one exclude_bits.ccf and other one is exclude_file.dat. contents of exclude_file.dat. file: -ere instance (...)
1. use design compiler's utility vcd2saif to generate the switch activity information and read into test compiler to report the coverage info. 2. there is one toggle rate caculate PLI example under nc-sim's sub-directory , compiled it then use PLI link from simulator to get the result .
Hi Verilog code-coverage utility Covered is a Verilog code-coverage utility used for Design Verification which is capable of performing line, toggle, combinational logic and finite state machine (FSM) coverage analysis. 1. 2. -> t tnx
The coverage have two .the first is code coverage, if you use some coverage tools , you should see such as: condition coverage , code coverage , brach coverage, toggle coverage and more. when you verify , you should reach 100% of those, the tools manual (...)
hi, Firstly, u need to compile ur design file with ur selected coverage. For example, ModelSim > vlog -cover bcst file_name.v Here, ur coverage are b=branch, c=condition, s=statement and t=toggle. then, ModelSim > vsim -coverage file_testbench.v next, run -all. OR, u can enable it using GUI. U go to (...)
I am trying to generate severate coverage reports and merge them after that. This error appear when I merge it and produce a report. I have no idea what it means and I am notsure whether the coverage report generated actually reflects the true result. What I did was: vlog -cover bst -f ../files.vc; vsim -c -coverage tbench -do (...)
Code coverage Checks How your testBench covers the Statments,Expressions, Conditions, Branches, toggle Nodes in your Design Under Test. Different TestBenches can target Different Statments in the Design Unit Functional coverage From its name it checks the Functionality of your Design unit. PSL & SV are used for Functional Cov
Hi all, I am just wondering, do we need to run the code coverage at the gate-level netlist? Can the code coverage from cadence support code coverage at the gate-level netlist? Thanks To a limited extent yes. For instance: * toggle cov on important nets * FSM coming out of reset properly Yes, Cad
yes,you can't say verification is completed for design and you can say only that i have done verification of some percentage(%)... the percentages based on your verification strategies. like if you done branch coverage you can say how many branches have you exercised successfully, if you done toggle coverage you can say how much % of (...)
hi shahsanket24, you can write a file , the content is just like: select_coverage -toggle -instance * select_coverage -block -expr -instance * set_toggle_portsonly set_assign_scoring then you can use command "-input covfile.cf" to load this file!
The IDDQ target is to cover maximum no of states for each logic gate in given design. we no need to observe any fault outside. Hence is just a toggle profile. due to these reasons the IDDQ coverage is high with lesser patterns.
Hi, I have a testcase in verilog to program different register using randomization. The value is given to a register as below: initial begin repeat(100) begin reg = $urandom_range(0,48); end end so reg is getting assigned with values between 0 and 48.I want the reg to be assigned with all values between 0 and 48 like randc in sys
A stuck node means you can't toggle this node by DFT or simulation. One thing you can try or I did before is isolate the node and trace the fanin and fanout until known nets(Exist in RTL) or instances(like flipflops). From these known nets, and the partial schematic, you can figure out simulation or DFT to toggle the net. Or the stuck node can neve
Hi, I want to run a test on my chip, and make sure that the IP I bought is integrated according to the vendor's specifications. I added checks for each pin according to the behaviour it should have: i.e., check that the pin has a constant value of 1, or check if the pin gets a value of Z or X during the simulation, or check t
Hi, Code coverage ---> Checks How your testBench covers the Statments,Expressions, Conditions, Branches, toggle Nodes in your Design Under Test. Different TestBenches can target Different Statments in the Design Unit Functional coverage ---> From its name it checks the Functionality of your Design unit. PSL & SV are used for (...)
hi, While generating patterns for transition faults, should the reset be declared as a clock or not? How does declaring the reset as clock help in increasing test coverage for transition patterns when it is known that the reset cannot toggle at speed? Will such patterns pass in the tester? Regards Anjana
At my company, we have some FPGA & ASIC designers that insist on using BATS (back-annotated timing simulations) to prove timing, because they have trouble wrapping their heads around (read: trusting) STA (static timing analysis). I want to demonstrate to them the lack of path sensitization and propagation ( to primary outputs of the design ) tha
The IDDQ test is to measure the leakage of the chip at each stop point inside the patterns. Usually up to 30-40 test points are needed for a 80% toggle iddq coverage. This test is long, because some stabilisation time is required to measure the leakage with the same repatibility.
I have design with async reset. This is async in assertion and sync in de-assertion. Also, the output of the synchronizers is ORed with a top level dftrstdisable port which behaves the same way as scan enable. This is done to avoid any reset issues during shift. In capture, the reset can toggle to acheive coverage on the synch paths. I am using