no Population Is Not a Problem, but Our Greatest Strength By feedproxy.google.com Published On :: 2019-06-09T03:27:29+00:00 This is the 21st installment of The Rationalist, my column for the Times of India. When all political parties agree on something, you know you might have a problem. Giriraj Singh, a minister in Narendra Modi’s new cabinet, tweeted this week that our population control law should become a “movement.” This is something that would find bipartisan support – we are taught from school onwards that India’s population is a big problem, and we need to control it. This is wrong. Contrary to popular belief, our population is not a problem. It is our greatest strength. The notion that we should worry about a growing population is an intuitive one. The world has limited resources. People keep increasing. Something’s gotta give. Robert Malthus made just this point in his 1798 book, An Essay on the Principle of Population. He was worried that our population would grow exponentially while resources would grow arithmetically. As more people entered the workforce, wages would fall and goods would become scarce. Calamity was inevitable. Malthus’s rationale was so influential that this mode of thinking was soon called ‘Malthusian.’ (It is a pejorative today.) A 20th-century follower of his, Harrison Brown, came up with one of my favourite images on this subject, arguing that a growing population would lead to the earth being “covered completely and to a considerable depth with a writhing mass of human beings, much as a dead cow is covered with a pulsating mass of maggots.” Another Malthusian, Paul Ehrlich, published a book called The Population Bomb in 1968, which began with the stirring lines, “The battle to feed all of humanity is over. In the 1970s hundreds of millions of people will starve to death in spite of any crash programs embarked upon now.” Ehrlich was, as you’d guess, a big supporter of India’s coercive family planning programs. ““I don’t see,” he wrote, “how India could possibly feed two hundred million more people by 1980.” None of these fears have come true. A 2007 study by Nicholas Eberstadt called ‘Too Many People?’ found no correlation between population density and poverty. The greater the density of people, the more you’d expect them to fight for resources – and yet, Monaco, which has 40 times the population density of Bangladesh, is doing well for itself. So is Bahrain, which has three times the population density of India. Not only does population not cause poverty, it makes us more prosperous. The economist Julian Simon pointed out in a 1981 book that through history, whenever there has been a spurt in population, it has coincided with a spurt in productivity. Such as, for example, between Malthus’s time and now. There were around a billion people on earth in 1798, and there are around 7.7 billion today. As you read these words, consider that you are better off than the richest person on the planet then. Why is this? The answer lies in the title of Simon’s book: The Ultimate Resource. When we speak of resources, we forget that human beings are the finest resource of all. There is no limit to our ingenuity. And we interact with each other in positive-sum ways – every voluntary interactions leaves both people better off, and the amount of value in the world goes up. This is why we want to be part of economic networks that are as large, and as dense, as possible. This is why most people migrate to cities rather than away from them – and why cities are so much richer than towns or villages. If Malthusians were right, essential commodities like wheat, maize and rice would become relatively scarcer over time, and thus more expensive – but they have actually become much cheaper in real terms. This is thanks to the productivity and creativity of humans, who, in Eberstadt’s words, are “in practice always renewable and in theory entirely inexhaustible.” The error made by Malthus, Brown and Ehrlich is the same error that our politicians make today, and not just in the context of population: zero-sum thinking. If our population grows and resources stays the same, of course there will be scarcity. But this is never the case. All we need to do to learn this lesson is look at our cities! This mistaken thinking has had savage humanitarian consequences in India. Think of the unborn millions over the decades because of our brutal family planning policies. How many Tendulkars, Rahmans and Satyajit Rays have we lost? Think of the immoral coercion still carried out on poor people across the country. And finally, think of the condescension of our politicians, asserting that people are India’s problem – but always other people, never themselves. This arrogance is India’s greatest problem, not our people. © 2007 IndiaUncut.com. All rights reserved. India Uncut * The IU Blog * Rave Out * Extrowords * Workoutable * Linkastic Full Article
no Farmers, Technology and Freedom of Choice: A Tale of Two Satyagrahas By feedproxy.google.com Published On :: 2019-06-30T03:29:02+00:00 This is the 23rd installment of The Rationalist, my column for the Times of India. I had a strange dream last night. I dreamt that the government had passed a law that made using laptops illegal. I would have to write this column by hand. I would also have to leave my home in Mumbai to deliver it in person to my editor in Delhi. I woke up trembling and angry – and realised how Indian farmers feel every single day of their lives. My column today is a tale of two satyagrahas. Both involve farmers, technology and the freedom of choice. One of them began this month – but first, let us go back to the turn of the millennium. As the 1990s came to an end, cotton farmers across India were in distress. Pests known as bollworms were ravaging crops across the country. Farmers had to use increasing amounts of pesticide to keep them at bay. The costs of the pesticide and the amount of labour involved made it unviable – and often, the crops would fail anyway. Then, technology came to the rescue. The farmers heard of Bt Cotton, a genetically modified type of cotton that kept these pests away, and was being used around the world. But they were illegal in India, even though no bad effects had ever been recorded. Well, who cares about ‘illegal’ when it is a matter of life and death? Farmers in Gujarat got hold of Bt Cotton seeds from the black market and planted them. You’ll never guess what happened next. As 2002 began, all cotton crops in Gujarat failed – except the 10,000 hectares that had Bt Cotton. The government did not care about the failed crops. They cared about the ‘illegal’ ones. They ordered all the Bt Cotton crops to be destroyed. It was time for a satyagraha – and not just in Gujarat. The late Sharad Joshi, leader of the Shetkari Sanghatana in Maharashtra, took around 10,000 farmers to Gujarat to stand with their fellows there. They sat in the fields of Bt Cotton and basically said, ‘Over our dead bodies.’ ¬Joshi’s point was simple: all other citizens of India have access to the latest technology from all over. They are all empowered with choice. Why should farmers be held back? The satyagraha was successful. The ban on Bt Cotton was lifted. There are three things I would like to point out here. One, the lifting of the ban transformed cotton farming in India. Over 90% of Indian farmers now use Bt Cotton. India has become the world’s largest producer of cotton, moving ahead of China. According to agriculture expert Ashok Gulati, India has gained US$ 67 billion in the years since from higher exports and import savings because of Bt Cotton. Most importantly, cotton farmers’ incomes have doubled. Two, GMO crops have become standard across the world. Around 190 million hectares of GMO crops have been planted worldwide, and GMO foods are accepted in 67 countries. The humanitarian benefits have been massive: Golden Rice, a variety of rice packed with minerals and vitamins, has prevented blindness in countless new-born kids since it was introduced in the Philippines. Three, despite the fear-mongering of some NGOs, whose existence depends on alarmism, the science behind GMO is settled. No harmful side effects have been noted in all these years, and millions of lives impacted positively. A couple of years ago, over 100 Nobel Laureates signed a petition asserting that GMO foods were safe, and blasting anti-science NGOs that stood in the way of progress. There is scientific consensus on this. The science may be settled, but the politics is not. The government still bans some types of GMO seeds, such as Bt Brinjal, which was developed by an Indian company called Mahyco, and used successfully in Bangladesh. More crucially, a variety called HT Bt Cotton, which fights weeds, is also banned. Weeding takes up to 15% of a farmer’s time, and often makes farming unviable. Farmers across the world use this variant – 60% of global cotton crops are HT Bt. Indian farmers are so desperate for it that they choose to break the law and buy expensive seeds from the black market – but the government is cracking down. A farmer in Haryana had his crop destroyed by the government in May. On June 10 this year, a farmer named Lalit Bahale in the Akola District of Maharashtra kicked off a satyagraha by planting banned seeds of HT Bt Cotton and Bt Brinjal. He was soon joined by thousands of farmers. Far from our urban eyes, a heroic fight has begun. Our farmers, already victimised and oppressed by a predatory government in countless ways, are fighting for their right to take charge of their lives. As this brave struggle unfolds, I am left with a troubling question: All those satyagrahas of the past by our great freedom fighters, what were they for, if all they got us was independence and not freedom? © 2007 IndiaUncut.com. All rights reserved. India Uncut * The IU Blog * Rave Out * Extrowords * Workoutable * Linkastic Full Article
no Special Route not connecting to Power Rings By feedproxy.google.com Published On :: Sun, 17 Nov 2019 13:15:57 GMT Hi, I'm a newbie and I'm working on a mixed-signal chip in Innovus. I've got a few analog LEF files that I've imported into my floorplan as macros. My chip has got two power domains - VCC and VBAT. One of the macro in the VBAT domain uses VBAT and GND as power rails myloweslife.com. On doing Special-Route, I've got a lot of minute power rails for the standard cells, as expected. But, the VBAT power rails are not getting extended till the outer power rings. Only the GND rails are correctly getting extended till the outer power rings. A screen shot is attached for reference. Thanks for any help Full Article
no Special Route not connecting to Power Rings By feedproxy.google.com Published On :: Tue, 31 Dec 2019 15:47:05 GMT Hi, I'm a newbie and I'm working on a mixed-signal chip in Innovus. I've got a few analog LEF files that I've imported into my floorplan as macros. My chip has got two power domains - VCC and VBAT. One of the macro in the VBAT domain uses VBAT and GND as power rails KrogerFeedback.com. On doing Special-Route, I've got a lot of minute power rails for the standard cells, as expected. But, the VBAT power rails are not getting extended till the outer power rings. Only the GND rails are correctly getting extended till the outer power rings. A screen shot is attached for reference. Thanks for any help Full Article
no Cadence SoC Encounter 8.1 - Keyboard is not working By feedproxy.google.com Published On :: Tue, 21 Jan 2020 21:45:03 GMT Hello, I am using Encounter 8.1. My mouse is working fine, but my keyboard is not working well in Encounter. I can type in some boxes, but in many boxes I cannot type. The binding key is also not responding. How do I fix this issue? Thanks. Full Article
no Innovus Stylus Common UI By feedproxy.google.com Published On :: Mon, 10 Feb 2020 17:48:06 GMT How can I make innovus start with common UI instead of legacy? When I launch Innovus with command "innovus", I get the legacy UI. I have Innovus version 17.11 installed. Thanks in advance. Full Article
no Interaction between Innovus and Virtuoso through OA database By feedproxy.google.com Published On :: Mon, 06 Apr 2020 14:32:45 GMT Hello,I created a floorplan view in Virtuoso ( it contains pins and blockages). I am trying to run PnR in Innovus for floorplan created in Virtuoso. I used set vars(oa_fp) "Library_name cell_name view_name" to read view from virtuoso. I am able to see pins in Innovus but not the blockages. Can i know how do i get the blockages created in virtuoso to Innovus. Regards,Amuu Full Article
no How to write Innovus Gui command to a cmd/log file? By feedproxy.google.com Published On :: Tue, 07 Apr 2020 03:07:13 GMT HI, I have been using the Innovus GUI commands for several things and wonder if those command can be written to a log or cmd file so I can use it in my flow script? Is there such options that we can set? Thanks Full Article
no How to place pins inside of the edge in Innovus By feedproxy.google.com Published On :: Fri, 10 Apr 2020 04:02:08 GMT Hi, I am doing layout for a mixed-signal circuit in Innovus. I want to create a digital donut style of layout (i.e. put analog circuit in the middle, and circle analog part with digital circuits). To do that, I need to place some pins inside the edge to connect to analog circuit (as shown in my attachment), but the problems is that I cannot place pins inside the edge by using "pin editor" within Innovus. Any suggestions to place pins inside? Thank you so much for your time and effort. Full Article
no Allegro System Architect 17.2 Project Settings not Opening By feedproxy.google.com Published On :: Wed, 08 Apr 2020 07:02:20 GMT I have been working on a an ASA 17.2 project for the last 6 months. When I go to Project --> Settings, the settings window does not open. The tool indicates that a window is open, as I cannot click on anything else in the project. But it does not show the Settings window. This has been happening only for the last 2 months. Before that it was working fine. If I send the project to my colleague, the settings window shows up for him. Full Article
no SpectreRF Tutorials and Appnotes... Shhhh... We Have a NEW Best Kept Secret! By feedproxy.google.com Published On :: Tue, 17 Dec 2013 15:23:00 GMT It's been a while since you've heard from me...it has been a busy year for sure. One of the reasons I've been so quiet is that I was part of a team working diligently on our latest best kept secret: The MMSIM 12.1.1/MMSIM 13.1 Documentation has...(read more) Full Article RF Simulation wireless Wilsey tutorial spectreRF Appnote RF design transmission lines harmonic balance SpectreRF tutorials
no See Cadence RF Technologies at IEEE International Microwave Symposium 2014 By feedproxy.google.com Published On :: Thu, 08 May 2014 16:02:00 GMT RF Enthusiasts, Come connect with Cadence RF experts and discover the latest advances in Cadence RF technologies, including Spectre RF at the IEEE International Microwave Symposium (IMS) 2014. This year, IMS will be held in Tampa, Florida. Cadence...(read more) Full Article RF Simulation IMS RFIC Spectre RF Virtuoso International Microwave Symposium IEEE
no How to Specify Phase Noise as an Instance Parameter in Spectre Sources (e.g. vsource, isource, Port) By feedproxy.google.com Published On :: Wed, 21 May 2014 00:33:00 GMT Last year, I wrote a blog post entitled Modeling Oscillators with Arbitrary Phase Noise Profiles . We now have an easier way to do this. Starting in MMSIM 13.1 , you can specify the phase noise as an instance parameter in Spectre sources, including...(read more) Full Article Spectre RF phase noise spectreRF analogLib port noise profiles
no Noise Simulation in Spectre RF Using Improved Pnoise/Hbnoise and Direct Plot Form Options By feedproxy.google.com Published On :: Wed, 19 Apr 2017 06:09:58 GMT Did you check out the new Pnoise and Hbnoise Choosing Analyses forms in the MMSIM 15.1 and IC6.1.7 /ICADV12.2 releases? These forms have been significantly improved and simplified. The Direct Plot Form has also been enhanced and is much easy to use....(read more) Full Article HBnoise HB Spectre RF pnoise noise simulation Virtuoso RF design pss
no Measurement of Phase Noise in Oscillators By feedproxy.google.com Published On :: Fri, 07 Sep 2018 11:21:00 GMT The other day, I happened to sneak out some time for myself after having sent the kids to play in the neighborhood park. I made myself a hot cup of coffee and settled on the couch hoping to enjoy the silence in the house. But was it really ...(read more) Full Article HBnoise HB Spectre RF pnoise phase noise harmonic balance pss Oscillator
no Not able to close a form By feedproxy.google.com Published On :: Tue, 28 Apr 2020 11:13:08 GMT Hi, I am trying to write a skill code where it takes form inputs by default and just displays tree directly. i have written below code, procedure( create_tree() let(() leHiTree() leTreeForm->treeOption->value="Current to user level" leTreeForm->userLevel->value= 31 ipcSleep(1) hiFormDone(leTreeForm) )) the form takes in values but it is not closing. tried with regtimer in place of ipc sleep, didn't work. how to close form(should be same as pressing OK)? Thanks in advance, vishwas Full Article
no How can I make a SKILL procedure not callable? By feedproxy.google.com Published On :: Fri, 01 May 2020 19:57:35 GMT Inside the scope of isCallable there is code which I don't want to be executed. The procedure named in isCallable to-day is callable. I want to make that procedure so it cannot be called. How do I do that? I can't change the isCallable line or the scope. I want to change its behavior by making sure that the procedure does not exist (obviously this would be done before the code is executed). Full Article
no Default param values not saved in OA cell property. By feedproxy.google.com Published On :: Tue, 05 May 2020 06:34:40 GMT When I place a pcell and do not change the W parameter (default is used) the value is not saved in the OA cell property. When I change the default value of the super master now, the old pcell will get the new default value automatically because there is nothing saved inside the OA cell for this parameter. Do you have any Idea, that how we can save the default values in the OA cell properties so that this value doesn't get updated if the default values are updated in the new PDKs Full Article
no Parasitic node coordinates By feedproxy.google.com Published On :: Thu, 07 May 2020 20:15:50 GMT Howdy, In the netlist generated after parasitic extraction, nodes have been added at fracture points to add parasitic devices. For example, in the image below, I'm referring to the nodes IN#1 and IN#2. Is there a way to determine their co-ordinates relative to the layout co-ordinate system? I could not find them in the Skill command reference and when I query the parasitic elements in the extracted view, it gives the graphical pin locations of the elements rather than the physical. Thanks Audi Full Article
no Celebrating Five Years of Performance-Optimized Arm-Based SoCs: Now including AMBA5 By feedproxy.google.com Published On :: Thu, 12 Oct 2017 22:05:00 GMT It’s been quite a long 5-year journey building and deploying Performance Analysis, Verification, and Debug capabilities for Arm-based SoCs. We worked with some of the smartest engineers on the planet. First with the engineers at Arm, with whom we...(read more) Full Article iwb interconnect amba5 Interconnect Workbench Palladium Performance Analysis AMBA CoreLink xcelium ARM
no Portable Stimulus User Gives Perspec PSS Technology Nearly Perfect Review By feedproxy.google.com Published On :: Mon, 08 Jan 2018 09:01:00 GMT It’s always good to hear what real users think of products. Here is a very detailed review (~4000 words) by an Anonymous user, nick named Ant-Man (from the movie). Overall it’s a very strong endorsement of Perspec, and summarize...(read more) Full Article
no How to check a cluster of same net vias spacing, with have no shape or cline covered By feedproxy.google.com Published On :: Fri, 14 Feb 2020 04:12:15 GMT Hi all, I have a question regarding the manufacture : how to check a cluster of same net vias spacing, with have no shape or cline covered Full Article
no Linley Processor Conference 2020 Keynote By community.cadence.com Published On :: Fri, 01 May 2020 12:00:00 GMT The Linley Processor Conference always opens with a keynote by Linley Gwenapp giving an overview of processors in whatever is the hottest area. Most of the other presentations during the conference... [[ Click on the title to access the full blog on the Cadence Community site. ]] Full Article
no 2019 HF1 Release for Clarity, Celsius, and Sigrity Tools Now Available By community.cadence.com Published On :: Fri, 01 May 2020 21:20:00 GMT The 2019 HF1 production release for Clarity, Celsius, and Sigrity Tools is now available for download at Cadence Downloads . SIGRITY2019 HF1 For information about supported platforms, compatibility... [[ Click on the title to access the full blog on the Cadence Community site. ]] Full Article
no Signoff in the Cloud By community.cadence.com Published On :: Mon, 04 May 2020 12:00:00 GMT Here's a nightmare. You sign off your design with the usual margins. It is a 7nm chip that is meant to run at 3GHz. But it only runs at 2.7GHz. You get Cadence to help you work out what is going... [[ Click on the title to access the full blog on the Cadence Community site. ]] Full Article
no Low-Power IEEE 1801 / UPF Simulation Rapid Adoption Kit Now Available By feedproxy.google.com Published On :: Fri, 22 Nov 2013 03:59:00 GMT There is no better way other than a self-help training kit -- (rapid adoption kit, or RAK) -- to demonstrate the Incisive Enterprise Simulator's IEEE 1801 / UPF low-power features and its usage. The features include: Unique SimVision debugging Patent-pending power supply network visualization and debugging Tcl extensions for LP debugging Support for Liberty file power description Standby mode support Support for Verilog, VHDL, and mixed language Automatic understanding of complex feedthroughs Replay of initial blocks ‘x' corruption for integers and enumerated types Automatic understanding of loop variables Automatic support for analog interconnections Mickey Rodriguez, AVS Staff Solutions Engineer has developed a low power UPF-based RAK, which is now available on Cadence Online Support for you to download. This rapid adoption kit illustrates Incisive Enterprise Simulator (IES) support for the IEEE 1801 power intent standard. Patent-Pending Power Supply Network Browser. (Only available with the LP option to IES) In addition to an overview of IES features, SimVision and Tcl debug features, a lab is provided to give the user an opportunity to try these out. The complete RAK and associated overview presentation can be downloaded from our SoC and Functional Verification RAK page: Rapid Adoption Kits Overview RAK Database Introduction to IEEE-1801 Low Power Simulation View Download (2.3 MB) We are covering the following technologies through our RAKs at this moment: Synthesis, Test and Verification flow Encounter Digital Implementation (EDI) System and Sign-off Flow Virtuoso Custom IC and Sign-off Flow Silicon-Package-Board Design Verification IP SOC and IP level Functional Verification System level verification and validation with Palladium XP Please visit https://support.cadence.com/raks to download your copy of RAK. We will continue to provide self-help content on Cadence Online Support, your 24/7 partner for learning more about Cadence tools, technologies, and methodologies as well as getting help in resolving issues related to Cadence software. If you are signed up for e-mail notifications, you're likely to notice new solutions, application notes (technical papers), videos, manuals, etc. Note: To access the above documents, click a link and use your Cadence credentials to log on to the Cadence Online Support https://support.cadence.com/ website. Happy Learning! Sumeet Aggarwal and Adam Sherer Full Article Low Power IEEE 1801 Functional Verification Incisive Enterprise Simulator IEEE 1801-2013 IEEE 1801-2009 RAK Incisive 1801 UPF 2.1 UPF RAKs simulation IES
no QPSS with non-50% dutycycle square wave clocks (For sample and hold) By feedproxy.google.com Published On :: Sat, 29 Feb 2020 11:07:00 GMT Hello, Would anyone know how to setup a PSS or QPSS simulation with 25% dutycycle clock sources or if such a thing is possible with QPSS. Fig1 (below) is a snapshot of the circuit I am trying to characterize. This has 4 clock ports each with 25%duty cycle in the ON state. Fig2 below shows two of these clocks. Each path in the circuit consists of two switches with a low pass RC sandwiched in between. The Input is a 50Ohm port sine wave and the output is a 1K resistor. The output nets of all paths are connected together. I am trying to determine the swept frequency response from input to output (voltage) when the input is from 500Mhz to 510MHz. The Period (T=1/Fp) of each of the pulses is such that Fp=500MHz. The first pulse source has a delay=0, second has delay=T/4, third delay=2T/4, etc... I am currently getting it working and seeing the correct result (bandpass response) with Transient but the problem is doing a dft at 500MHz with 10KHz spacings needs at least 100us and takes up a lot of time and disk space. Many Thanks,Chris. Fig1 Fig2 Full Article
no Noise figure optimization of LNA By feedproxy.google.com Published On :: Wed, 18 Mar 2020 17:02:57 GMT Hello, I looking for reaching minimal NOISE FIRUGE by peaking a combination of the RLC on the output load as shown bellow.I tried to do it with PNOISE but it gives me an error on the |f(in)| i am not sure regarding the sidebands in my case(its not a mixer) How can i show Noise Figure and optimize it using my output RLC? Thanks Full Article
no Kf parameter testing in spectre under non standart conditions By feedproxy.google.com Published On :: Tue, 31 Mar 2020 19:02:42 GMT Hello, i need to test the parameter Kf under some conditions in subthreshold.i cannot just plot the OP param,becasue i need to derive it under certain conditions. Spectre(of Cadence) like BSIM(of Berkley) has developed a method for deriving each parameter in their model. Is there a way to help me with such manual where i can test in cadence virtuoso the Kf parameter shown in the formula bellow? Thanks. Full Article
no LNA output noise floor at receiver front end. By feedproxy.google.com Published On :: Thu, 02 Apr 2020 07:30:37 GMT Hi, i am designing a broadband (100 MHz -6 GHz BW) receiver chain for radar/rcs measurement tester. i will put Low noise amplifier after antenna input followed by mixed(10 MHz IF BW and digitizer. I am facing problem regarding LAN. bandwidth of LAN is approx 6 GHz(100 MHz-6GHz), gain 25-35 dB, with NF less than 2. I am uncertain about noise floor at the output of LNA. I dont know exact SNR at the input of LNA but it shall be good.System operation will be on stepped CW waveform so receiver input signal will sweep over the BW and some step size. so LNA output r noise floor will be? i assume, we can neglect thr role of input noise because it will be lesser than internal noise of LNA. will it be LNA internal noise (Thermal noise due to BW) only ? will it be LNA internal noise (Thermal noise due to BW) + LAN Gain ? -78+25 =-53 dB? internal noise shall be lesser because NF is less than 3 . i have practically observed that that output noise floor is much lesser then even thermal noise( over LNA BW). i have gone through some tutorial where formula says( internal noise+input noise)+gain. in my case input noise shall be much less than theoretical internal noise. Thanks Full Article
no pnoise pmjitter simulation By feedproxy.google.com Published On :: Fri, 24 Apr 2020 07:20:31 GMT Hi, when I applied a voltage divider implemented by two 100-ohm resistors to a 2Vpp 5GHz vsin source, the phase noise simulation using pnoise/fullspectrum with different types, jitter and source have different results. The simulated output noise results are 165.76aV2/Hz for pmjitter case, and 828.79zV2/Hz for source case. The source case result equals to the output noise calculation. For my application, the output will be applied to driven circuits and thus pm jitter is concerned. As the pmjitter is based on the noise sampling at the threshold crossings, I was wondering how spectre gets the pmjitter resullts since sampling white noise with infinite bandwidth is impossible to my knowledge? Interestingly, the Jee result by integration from 10kHz to 2.5GHz is ~41fs and is closed to Jee,rms from the transient noise simulation. I am also not sure how these results come and match each other. If applying the voltage divider output to drive next stages, I was wondering to what extent I can trust the input jitter from these simulations? Thank you. Full Article
no E- (SPMHDB-187): SHAPE boundary may not cross itself. By feedproxy.google.com Published On :: Mon, 24 Feb 2020 07:26:13 GMT Hi experts, I have a problem with my design as below ERROR: in SHAPE (-2.3622 2.3622) class = ETCH subclass = TOP Part of Symbol Def SHAPE_4725X4725. Which is part of a padstack as a SHAPE symbol. ERROR(SPMHDB-187): SHAPE boundary may not cross itself. Error cannot be fixed. Object has first point location at (-2.3622 2.3622).Can you tell me how to solve my problem?Thanks a lot. Full Article
no axlShapeAutoVoid not voiding Backdrill shapes By feedproxy.google.com Published On :: Fri, 13 Mar 2020 22:49:44 GMT Hi all, I am creating shapes on plane layers for a coupon and want to void them using axlShapeAutoVoid() The shapes are attached to a symbol. I've tried using axlShapeAutoVoid, but this only voids the pins, not the route keepouts created by nc_backdrill. I also tried selecting the shape, individually, then running axlShapeAutoVoid. That was unsuccessful, also. planeShapes is a list of shapes I created. The code for voiding: ;run backdrill to get route keepouts axlShell("setwindow pcb;backdrill setup ;setwindow form.nc_backdrill;FORM nc_backdrill apply ;FORM nc_backdrill close") foreach(sHape planeShapes axlShapeAutoVoid(car(sHape)) ) Full Article
no Here Is Why the Indian Voter Is Saddled With Bad Economics By feedproxy.google.com Published On :: 2019-02-03T03:54:17+00:00 This is the 15th installment of The Rationalist, my column for the Times of India. It’s election season, and promises are raining down on voters like rose petals on naïve newlyweds. Earlier this week, the Congress party announced a minimum income guarantee for the poor. This Friday, the Modi government released a budget full of sops. As the days go by, the promises will get bolder, and you might feel important that so much attention is being given to you. Well, the joke is on you. Every election, HL Mencken once said, is “an advance auction sale of stolen goods.” A bunch of competing mafias fight to rule over you for the next five years. You decide who wins, on the basis of who can bribe you better with your own money. This is an absurd situation, which I tried to express in a limerick I wrote for this page a couple of years ago: POLITICS: A neta who loves currency notes/ Told me what his line of work denotes./ ‘It is kind of funny./ We steal people’s money/And use some of it to buy their votes.’ We’re the dupes here, and we pay far more to keep this circus going than this circus costs. It would be okay if the parties, once they came to power, provided good governance. But voters have given up on that, and now only want patronage and handouts. That leads to one of the biggest problems in Indian politics: We are stuck in an equilibrium where all good politics is bad economics, and vice versa. For example, the minimum guarantee for the poor is good politics, because the optics are great. It’s basically Garibi Hatao: that slogan made Indira Gandhi a political juggernaut in the 1970s, at the same time that she unleashed a series of economic policies that kept millions of people in garibi for decades longer than they should have been. This time, the Congress has released no details, and keeping it vague makes sense because I find it hard to see how it can make economic sense. Depending on how they define ‘poor’, how much income they offer and what the cost is, the plan will either be ineffective or unworkable. The Modi government’s interim budget announced a handout for poor farmers that seemed rather pointless. Given our agricultural distress, offering a poor farmer 500 bucks a month seems almost like mockery. Such condescending handouts solve nothing. The poor want jobs and opportunities. Those come with growth, which requires structural reforms. Structural reforms don’t sound sexy as election promises. Handouts do. A classic example is farm loan waivers. We have reached a stage in our politics where every party has to promise them to assuage farmers, who are a strong vote bank everywhere. You can’t blame farmers for wanting them – they are a necessary anaesthetic. But no government has yet made a serious attempt at tackling the root causes of our agricultural crisis. Why is it that Good Politics in India is always Bad Economics? Let me put forth some possible reasons. One, voters tend to think in zero-sum ways, as if the pie is fixed, and the only way to bring people out of poverty is to redistribute. The truth is that trade is a positive-sum game, and nations can only be lifted out of poverty when the whole pie grows. But this is unintuitive. Two, Indian politics revolves around identity and patronage. The spoils of power are limited – that is indeed a zero-sum game – so you’re likely to vote for whoever can look after the interests of your in-group rather than care about the economy as a whole. Three, voters tend to stay uninformed for good reasons, because of what Public Choice economists call Rational Ignorance. A single vote is unlikely to make a difference in an election, so why put in the effort to understand the nuances of economics and governance? Just ask, what is in it for me, and go with whatever seems to be the best answer. Four, Politicians have a short-term horizon, geared towards winning the next election. A good policy that may take years to play out is unattractive. A policy that will win them votes in the short term is preferable. Sadly, no Indian party has shown a willingness to aim for the long term. The Congress has produced new Gandhis, but not new ideas. And while the BJP did make some solid promises in 2014, they did not walk that talk, and have proved to be, as Arun Shourie once called them, UPA + Cow. Even the Congress is adopting the cow, in fact, so maybe the BJP will add Temple to that mix? Benjamin Franklin once said, “Democracy is two wolves and a lamb voting on what to have for lunch.” This election season, my friends, the people of India are on the menu. You have been deveined and deboned, marinated with rhetoric, seasoned with narrative – now enter the oven and vote. The India Uncut Blog © 2010 Amit Varma. All rights reserved. Follow me on Twitter. Full Article
no India’s Problem is Poverty, Not Inequality By feedproxy.google.com Published On :: 2019-02-17T04:23:30+00:00 This is the 16th installment of The Rationalist, my column for the Times of India. Steven Pinker, in his book Enlightenment Now, relates an old Russian joke about two peasants named Boris and Igor. They are both poor. Boris has a goat. Igor does not. One day, Igor is granted a wish by a visiting fairy. What will he wish for? “I wish,” he says, “that Boris’s goat should die.” The joke ends there, revealing as much about human nature as about economics. Consider the three things that happen if the fairy grants the wish. One, Boris becomes poorer. Two, Igor stays poor. Three, inequality reduces. Is any of them a good outcome? I feel exasperated when I hear intellectuals and columnists talking about economic inequality. It is my contention that India’s problem is poverty – and that poverty and inequality are two very different things that often do not coincide. To illustrate this, I sometimes ask this question: In which of the following countries would you rather be poor: USA or Bangladesh? The obvious answer is USA, where the poor are much better off than the poor of Bangladesh. And yet, while Bangladesh has greater poverty, the USA has higher inequality. Indeed, take a look at the countries of the world measured by the Gini Index, which is that standard metric used to measure inequality, and you will find that USA, Hong Kong, Singapore and the United Kingdom all have greater inequality than Bangladesh, Liberia, Pakistan and Sierra Leone, which are much poorer. And yet, while the poor of Bangladesh would love to migrate to unequal USA, I don’t hear of too many people wishing to go in the opposite direction. Indeed, people vote with their feet when it comes to choosing between poverty and inequality. All of human history is a story of migration from rural areas to cities – which have greater inequality. If poverty and inequality are so different, why do people conflate the two? A key reason is that we tend to think of the world in zero-sum ways. For someone to win, someone else must lose. If the rich get richer, the poor must be getting poorer, and the presence of poverty must be proof of inequality. But that’s not how the world works. The pie is not fixed. Economic growth is a positive-sum game and leads to an expansion of the pie, and everybody benefits. In absolute terms, the rich get richer, and so do the poor, often enough to come out of poverty. And so, in any growing economy, as poverty reduces, inequality tends to increase. (This is counter-intuitive, I know, so used are we to zero-sum thinking.) This is exactly what has happened in India since we liberalised parts of our economy in 1991. Most people who complain about inequality in India are using the wrong word, and are really worried about poverty. Put a millionaire in a room with a billionaire, and no one will complain about the inequality in that room. But put a starving beggar in there, and the situation is morally objectionable. It is the poverty that makes it a problem, not the inequality. You might think that this is just semantics, but words matter. Poverty and inequality are different phenomena with opposite solutions. You can solve for inequality by making everyone equally poor. Or you could solve for it by redistributing from the rich to the poor, as if the pie was fixed. The problem with this, as any economist will tell you, is that there is a trade-off between redistribution and growth. All redistribution comes at the cost of growing the pie – and only growth can solve the problem of poverty in a country like ours. It has been estimated that in India, for every one percent rise in GDP, two million people come out of poverty. That is a stunning statistic. When millions of Indians don’t have enough money to eat properly or sleep with a roof over their heads, it is our moral imperative to help them rise out of poverty. The policies that will make this possible – allowing free markets, incentivising investment and job creation, removing state oppression – are likely to lead to greater inequality. So what? It is more urgent to make sure that every Indian has enough to fulfil his basic needs – what the philosopher Harry Frankfurt, in his fine book On Inequality, called the Doctrine of Sufficiency. The elite in their airconditioned drawing rooms, and those who live in rich countries, can follow the fashions of the West and talk compassionately about inequality. India does not have that luxury. The India Uncut Blog © 2010 Amit Varma. All rights reserved. Follow me on Twitter. Full Article
no To Escalate or Not? This Is Modi’s Zugzwang Moment By feedproxy.google.com Published On :: 2019-03-03T03:19:05+00:00 This is the 17th installment of The Rationalist, my column for the Times of India. One of my favourite English words comes from chess. If it is your turn to move, but any move you make makes your position worse, you are in ‘Zugzwang’. Narendra Modi was in zugzwang after the Pulwama attacks a few days ago—as any Indian prime minister in his place would have been. An Indian PM, after an attack for which Pakistan is held responsible, has only unsavoury choices in front of him. He is pulled in two opposite directions. One, strategy dictates that he must not escalate. Two, politics dictates that he must. Let’s unpack that. First, consider the strategic imperatives. Ever since both India and Pakistan became nuclear powers, a conventional war has become next to impossible because of the threat of a nuclear war. If India escalates beyond a point, Pakistan might bring their nuclear weapons into play. Even a limited nuclear war could cause millions of casualties and devastate our economy. Thus, no matter what the provocation, India needs to calibrate its response so that the Pakistan doesn’t take it all the way. It’s impossible to predict what actions Pakistan might view as sufficient provocation, so India has tended to play it safe. Don’t capture territory, don’t attack military assets, don’t kill civilians. In other words, surgical strikes on alleged terrorist camps is the most we can do. Given that Pakistan knows that it is irrational for India to react, and our leaders tend to be rational, they can ‘bleed us with a thousand cuts’, as their doctrine states, with impunity. Both in 2001, when our parliament was attacked and the BJP’s Atal Bihari Vajpayee was PM, and in 2008, when Mumbai was attacked and the Congress’s Manmohan Singh was PM, our leaders considered all the options on the table—but were forced to do nothing. But is doing nothing an option in an election year? Leave strategy aside and turn to politics. India has been attacked. Forty soldiers have been killed, and the nation is traumatised and baying for blood. It is now politically impossible to not retaliate—especially for a PM who has criticized his predecessor for being weak, and portrayed himself as a 56-inch-chested man of action. I have no doubt that Modi is a rational man, and knows the possible consequences of escalation. But he also knows the possible consequences of not escalating—he could dilute his brand and lose the elections. Thus, he is forced to act. And after he acts, his Pakistan counterpart will face the same domestic pressure to retaliate, and will have to attack back. And so on till my home in Versova is swallowed up by a nuclear crater, right? Well, not exactly. There is a way to resolve this paradox. India and Pakistan can both escalate, not via military actions, but via optics. Modi and Imran Khan, who you’d expect to feel like the loneliest men on earth right now, can find sweet company in each other. Their incentives are aligned. Neither man wants this to turn into a full-fledged war. Both men want to appear macho in front of their domestic constituencies. Both men are masters at building narratives, and have a pliant media that will help them. Thus, India can carry out a surgical strike and claim it destroyed a camp, killed terrorists, and forced Pakistan to return a braveheart prisoner of war. Pakistan can say India merely destroyed two trees plus a rock, and claim the high moral ground by returning the prisoner after giving him good masala tea. A benign military equilibrium is maintained, and both men come out looking like strong leaders: a win-win game for the PMs that avoids a lose-lose game for their nations. They can give themselves a high-five in private when they meet next, and Imran can whisper to Modi, “You’re a good spinner, bro.” There is one problem here, though: what if the optics don’t work? If Modi feels that his public is too sceptical and he needs to do more, he might feel forced to resort to actual military escalation. The fog of politics might obscure the possible consequences. If the resultant Indian military action causes serious damage, Pakistan will have to respond in kind. In the chain of events that then begins, with body bags piling up, neither man may be able to back down. They could end up as prisoners of circumstance—and so could we. *** Also check out: Why Modi Must Learn to Play the Game of Chicken With Pakistan—Amit Varma The Two Pakistans—Episode 79 of The Seen and the Unseen India in the Nuclear Age—Episode 80 of The Seen and the Unseen The India Uncut Blog © 2010 Amit Varma. All rights reserved. Follow me on Twitter. Full Article
no Population Is Not a Problem, but Our Greatest Strength By feedproxy.google.com Published On :: 2019-06-09T03:27:29+00:00 This is the 21st installment of The Rationalist, my column for the Times of India. When all political parties agree on something, you know you might have a problem. Giriraj Singh, a minister in Narendra Modi’s new cabinet, tweeted this week that our population control law should become a “movement.” This is something that would find bipartisan support – we are taught from school onwards that India’s population is a big problem, and we need to control it. This is wrong. Contrary to popular belief, our population is not a problem. It is our greatest strength. The notion that we should worry about a growing population is an intuitive one. The world has limited resources. People keep increasing. Something’s gotta give. Robert Malthus made just this point in his 1798 book, An Essay on the Principle of Population. He was worried that our population would grow exponentially while resources would grow arithmetically. As more people entered the workforce, wages would fall and goods would become scarce. Calamity was inevitable. Malthus’s rationale was so influential that this mode of thinking was soon called ‘Malthusian.’ (It is a pejorative today.) A 20th-century follower of his, Harrison Brown, came up with one of my favourite images on this subject, arguing that a growing population would lead to the earth being “covered completely and to a considerable depth with a writhing mass of human beings, much as a dead cow is covered with a pulsating mass of maggots.” Another Malthusian, Paul Ehrlich, published a book called The Population Bomb in 1968, which began with the stirring lines, “The battle to feed all of humanity is over. In the 1970s hundreds of millions of people will starve to death in spite of any crash programs embarked upon now.” Ehrlich was, as you’d guess, a big supporter of India’s coercive family planning programs. ““I don’t see,” he wrote, “how India could possibly feed two hundred million more people by 1980.” None of these fears have come true. A 2007 study by Nicholas Eberstadt called ‘Too Many People?’ found no correlation between population density and poverty. The greater the density of people, the more you’d expect them to fight for resources – and yet, Monaco, which has 40 times the population density of Bangladesh, is doing well for itself. So is Bahrain, which has three times the population density of India. Not only does population not cause poverty, it makes us more prosperous. The economist Julian Simon pointed out in a 1981 book that through history, whenever there has been a spurt in population, it has coincided with a spurt in productivity. Such as, for example, between Malthus’s time and now. There were around a billion people on earth in 1798, and there are around 7.7 billion today. As you read these words, consider that you are better off than the richest person on the planet then. Why is this? The answer lies in the title of Simon’s book: The Ultimate Resource. When we speak of resources, we forget that human beings are the finest resource of all. There is no limit to our ingenuity. And we interact with each other in positive-sum ways – every voluntary interactions leaves both people better off, and the amount of value in the world goes up. This is why we want to be part of economic networks that are as large, and as dense, as possible. This is why most people migrate to cities rather than away from them – and why cities are so much richer than towns or villages. If Malthusians were right, essential commodities like wheat, maize and rice would become relatively scarcer over time, and thus more expensive – but they have actually become much cheaper in real terms. This is thanks to the productivity and creativity of humans, who, in Eberstadt’s words, are “in practice always renewable and in theory entirely inexhaustible.” The error made by Malthus, Brown and Ehrlich is the same error that our politicians make today, and not just in the context of population: zero-sum thinking. If our population grows and resources stays the same, of course there will be scarcity. But this is never the case. All we need to do to learn this lesson is look at our cities! This mistaken thinking has had savage humanitarian consequences in India. Think of the unborn millions over the decades because of our brutal family planning policies. How many Tendulkars, Rahmans and Satyajit Rays have we lost? Think of the immoral coercion still carried out on poor people across the country. And finally, think of the condescension of our politicians, asserting that people are India’s problem – but always other people, never themselves. This arrogance is India’s greatest problem, not our people. The India Uncut Blog © 2010 Amit Varma. All rights reserved. Follow me on Twitter. Full Article
no Farmers, Technology and Freedom of Choice: A Tale of Two Satyagrahas By feedproxy.google.com Published On :: 2019-06-30T03:29:02+00:00 This is the 23rd installment of The Rationalist, my column for the Times of India. I had a strange dream last night. I dreamt that the government had passed a law that made using laptops illegal. I would have to write this column by hand. I would also have to leave my home in Mumbai to deliver it in person to my editor in Delhi. I woke up trembling and angry – and realised how Indian farmers feel every single day of their lives. My column today is a tale of two satyagrahas. Both involve farmers, technology and the freedom of choice. One of them began this month – but first, let us go back to the turn of the millennium. As the 1990s came to an end, cotton farmers across India were in distress. Pests known as bollworms were ravaging crops across the country. Farmers had to use increasing amounts of pesticide to keep them at bay. The costs of the pesticide and the amount of labour involved made it unviable – and often, the crops would fail anyway. Then, technology came to the rescue. The farmers heard of Bt Cotton, a genetically modified type of cotton that kept these pests away, and was being used around the world. But they were illegal in India, even though no bad effects had ever been recorded. Well, who cares about ‘illegal’ when it is a matter of life and death? Farmers in Gujarat got hold of Bt Cotton seeds from the black market and planted them. You’ll never guess what happened next. As 2002 began, all cotton crops in Gujarat failed – except the 10,000 hectares that had Bt Cotton. The government did not care about the failed crops. They cared about the ‘illegal’ ones. They ordered all the Bt Cotton crops to be destroyed. It was time for a satyagraha – and not just in Gujarat. The late Sharad Joshi, leader of the Shetkari Sanghatana in Maharashtra, took around 10,000 farmers to Gujarat to stand with their fellows there. They sat in the fields of Bt Cotton and basically said, ‘Over our dead bodies.’ ¬Joshi’s point was simple: all other citizens of India have access to the latest technology from all over. They are all empowered with choice. Why should farmers be held back? The satyagraha was successful. The ban on Bt Cotton was lifted. There are three things I would like to point out here. One, the lifting of the ban transformed cotton farming in India. Over 90% of Indian farmers now use Bt Cotton. India has become the world’s largest producer of cotton, moving ahead of China. According to agriculture expert Ashok Gulati, India has gained US$ 67 billion in the years since from higher exports and import savings because of Bt Cotton. Most importantly, cotton farmers’ incomes have doubled. Two, GMO crops have become standard across the world. Around 190 million hectares of GMO crops have been planted worldwide, and GMO foods are accepted in 67 countries. The humanitarian benefits have been massive: Golden Rice, a variety of rice packed with minerals and vitamins, has prevented blindness in countless new-born kids since it was introduced in the Philippines. Three, despite the fear-mongering of some NGOs, whose existence depends on alarmism, the science behind GMO is settled. No harmful side effects have been noted in all these years, and millions of lives impacted positively. A couple of years ago, over 100 Nobel Laureates signed a petition asserting that GMO foods were safe, and blasting anti-science NGOs that stood in the way of progress. There is scientific consensus on this. The science may be settled, but the politics is not. The government still bans some types of GMO seeds, such as Bt Brinjal, which was developed by an Indian company called Mahyco, and used successfully in Bangladesh. More crucially, a variety called HT Bt Cotton, which fights weeds, is also banned. Weeding takes up to 15% of a farmer’s time, and often makes farming unviable. Farmers across the world use this variant – 60% of global cotton crops are HT Bt. Indian farmers are so desperate for it that they choose to break the law and buy expensive seeds from the black market – but the government is cracking down. A farmer in Haryana had his crop destroyed by the government in May. On June 10 this year, a farmer named Lalit Bahale in the Akola District of Maharashtra kicked off a satyagraha by planting banned seeds of HT Bt Cotton and Bt Brinjal. He was soon joined by thousands of farmers. Far from our urban eyes, a heroic fight has begun. Our farmers, already victimised and oppressed by a predatory government in countless ways, are fighting for their right to take charge of their lives. As this brave struggle unfolds, I am left with a troubling question: All those satyagrahas of the past by our great freedom fighters, what were they for, if all they got us was independence and not freedom? The India Uncut Blog © 2010 Amit Varma. All rights reserved. Follow me on Twitter. Full Article
no Design library not defined while reading module with ncsim By feedproxy.google.com Published On :: Fri, 25 Oct 2019 08:27:37 GMT Hi supporters, I got the following error while I run simulation with gate netlist using Cadence Incisive (v15.20): ---- ncsim(64): 15.20-s076: (c) Copyright 1995-2019 Cadence Design Systems, Inc.ncsim: *E,DLOALB: Design library 'tcbnxxx' not defined while reading module tcbnxxx.MAOxxx:bv (VST).ncsim: *F,NOSIMU: Errors initializing simulation 'alu_tb' ---- xxx: standard library name. My netlist design uses a cell "MAOxxx". I already included the library behavior model to compile using ncverilog, there is no error while compiling. But when I run with ncsim to execute the test, I got above error. I tried to run with other vendors such as VCS or MTI, they worked. Please help to understand the error. Thanks. Full Article
no IMC : fsm coding style not auto extracted/Identified by IMC By feedproxy.google.com Published On :: Mon, 09 Dec 2019 20:27:44 GMT Hi, I've vhdl block containing fsm . IMC not able to auto extract the state machine coded like this: There is a intermediate state state_mux between next_state & state. Pls. help in guiding IMC how to recognize this FSM coding style? Snipped of the fsm code: ---------------------------------------------------------------------------------------------------------------------------------------------- type state_type is (ST_IDLE, ST_ADDRESS, ST_ACK_ADDRESS, ST_READ, ST_ACK_READ, ST_WRITE, ST_ACK_WRITE, ST_IDLE_BYTE); signal state : state_type; signal state_mux : state_type; signal next_state : state_type; process(state_mux, start) begin next_state <= state_mux; next_count <= (others => '0'); case (state_mux) is when ST_IDLE => if(start = '1') then next_state <= ST_ADDRESS; end if; when ST_ADDRESS => ……………. when others => null; end case; end process; process(scl_clk_n, active_rstn) begin if(active_rstn = '0') then state <= ST_IDLE after delay_f; elsif(scl_clk_n'event and scl_clk_n = '1') then state <= next_state after delay_f; end if; end process; process(state, start) begin state_mux <= state; if(start = '1') then state_mux <= ST_IDLE; end if; end process; Thanks Raghu Full Article
no xmsim is not exiting the simulation for this error By feedproxy.google.com Published On :: Thu, 23 Jan 2020 18:38:33 GMT xmsim is not exiting the simulation for this error. It is unusual for the simulator to not exit for an error. I have just started using uvm and this is occurring during the randomization step for a sequencer item. xmsim: *E,RNDCNSTE I am using -EXIT on the command line. I am using Xcelium 19.03-s013. Any insights are appreciated. Thanks. -Jim Full Article
no Placement by Schematic Page Problem (Not Displaying All Page) By feedproxy.google.com Published On :: Wed, 29 Apr 2020 02:30:24 GMT I am using PCB Editor v17.2-2016. I tried to do placement by schematic page but not all pages are displayed. Earlier, I successfully do the placement by schematic pages and it was showing all the pages. But then I decided to delete all placed components and to do placement again. When I try to do placement by schematic page again, I noticed that only the pages that I have successfully do all the placement previously are missing. Full Article
no Error: CMFBC-1 The schematic and the layout constraints were not synchronized By feedproxy.google.com Published On :: Thu, 30 Apr 2020 06:47:16 GMT Hi, I am in the middle of a design and had no problem going back and forth between schematics and layout. Now I am getting the error message below. I am using Cadence 17.2. ERROR: Layout database has probably been reverted to an earlier version than that, which was used in the latest flow or the schematic database was synchronized with another board. The basecopy file generated by the last back-to-front flow not found. ERROR: Layout database has probably been reverted to an earlier version than that, which was used in the latest flow or the schematic database was synchronized with another board. The basecopy file generated by the last back-to-front flow not found. Error: CMFBC-1: The schematic and the layout constraints were not synchronized as the changes done since the last sync up could not be reconciled. Syncing the current version of the schematic or layout databases with a previous version would result in this issue. The constraint difference report is displayed. Continuing with "changes-only" processing may result in incorrect constraint updates. Thanks for your input Claudia Full Article
no Advance Annotation error By feedproxy.google.com Published On :: Thu, 30 Apr 2020 21:54:45 GMT Hello all, We are designing a backplane and in the design we are using some custom prefixes using the Advance Annotation tool. When annotating the occurances I get the following error: ERROR(ORDBDLL-1224): The total number of components for prefix J0C exceeds the range supplied for it.Increase the End value of the range. Thanks in advance for the help --Tom Full Article
no Allegro design entry DHL, pin swaps , export without exporting constraints, back annotate. By feedproxy.google.com Published On :: Wed, 06 May 2020 14:49:01 GMT Hi, I have a new customer that uses Allegro Design entry HDL for the schematic and have a few questions. 1. How do you get pin/gate swaps into the symbols in the schematic ? 2. How do you transfer them to the pcb editor ? 3. How do you back annotate the swaps from the pcb editor to the schematic ? 4. How do you stop the export/Import physical from updating the constraints in the pcb file ? Full Article
no ce_tools directory no longer shipped with Specman By feedproxy.google.com Published On :: Tue, 22 Apr 2008 08:59:07 GMT Hello All,starting with version 8.1 the contents of the ce_tools directory will no longerbe shipped with Specman. The directory contains some unsupported AE/R&Dware and has not been updated for several releases (i.e. most of those oldpackages don't work with the latest release). Attached is the contents of this directory. Please read the README beforeusing any of the packages.Regards,-hannesOriginally posted in cdnusers.org by hannes Full Article
no VHDL-AMS std and ieee libraries not found/empty By feedproxy.google.com Published On :: Thu, 23 Apr 2020 17:53:15 GMT I'm trying to set up a VHDL-AMS simulation, so I made a new cell, selected the vhdlamstext type, and copied some example from the web. But when I hit the save and compile button, I first got the following NOLSTD error: https://www.edaboard.com/showthread.php?27832-Simulating-a-VHDL-design-in-ldv5-1 So I added said file to my cds.lib and tried again. But now I'm getting this: ncvhdl_p: *F,DLUNNE: Can't find STANDARD at /cadappl/ictools/cadence_ic/6.1.7.721/tools/inca/files/STD. If I go over to the Library Browser, it indeed shows that the library is completely empty. Properties show it has the following files attached. In the file system I've also found a STD.src folder. Is there a way to recompile the library properly? Supposedly this folder includes precompiled versions, but looks like not really. Full Article
no Ultrasim does not converge with BSIMBULK model By feedproxy.google.com Published On :: Tue, 05 May 2020 09:16:51 GMT Hello, I am using ultrasim Version 18.1.0.314.isr5 64bit 03/26/2019 06:33 (csvcm20c-2). When I run my netlist, ultrasim is blocked in the first DC stage and takes forever. Then it will fail or never progress. I am using a 22nm BSIMBULK model. I tried to tune different accuracy and convergence aids options but noting works. When I run the same netlist with spectre it works fine with no problem. Also, If I use another model (not BULKSIM), ultrasim will work and converge with no problem. My first feeling is that ultrasim has a problem with using BSIMBULK model. Could you please advice, Thank you, Kotb Full Article
no ERROR (OSSGLD-18): and not able to run simulation By feedproxy.google.com Published On :: Wed, 06 May 2020 02:40:42 GMT I put some stimulus in the simulation file section : _vpd_data_enb (pu_data_enb 0) vsource wave=[0 0 1n 0 1.015n vcchbm 3n vcchbm] dc=0 type=pwl_vpu_data_enb (pd_data_enb 0) vsource dc=pu_enb type=dc I get the following error. ERROR (OSSGLD-18): The command character after '[' in the NLP expression '[0 0 1n 0 1.015n vcchbm 3n vcchbm] dc=0 type=pwl ' is not a valid character. The command character is the first character after '[' in the NLP expression. It must be '?', '!', '#', '$', 'n', '@', '.', '~' or '+'. Enter a valid character as the command character. si: simin did not complete successfully. I dont see anything wrong with the stimulus syntax Full Article
no Innovus Implementation System: What Is Stylus UI? By feedproxy.google.com Published On :: Mon, 06 Apr 2020 17:51:00 GMT Hi Everyone, Many of you would have heard about the Cadence Stylus Common UI and are wondering what it is and what the advantages might be to use it versus legacy UI. The webinar answers the following questions: Why did Cadence develop Stylus UI and what is Stylus Common UI? How does someone invoke and use the Stylus Common UI? What are some of the important and useful features of the Stylus Common UI? What are the key ways in which the Stylus Common UI is different from the default UI? If you want to learn more about Stylus UI in the context of implementation, view the 45-minute recorded webinar on the Cadence support site. Related Resource Innovus Block Implementation with Stylus Common UI Vinita Nelson Full Article