ide

Telangana train accident: Goods train derails near Peddapalli. Check full list of cancelled, diverted trains today | Today News - Mint

  1. Telangana train accident: Goods train derails near Peddapalli. Check full list of cancelled, diverted trains today | Today News  Mint
  2. Goods train derails in Telangana's Peddapalli; 20 trains cancelled, 10 diverted  The Economic Times
  3. 11 coaches of goods train derail in Telangana  The Times of India
  4. Goods train derailment in Telangana affects rail traffic between Delhi and Chennai  Telangana Today
  5. Goods train derails in Telangana's Peddapalli; 30 trains cancelled, several diverted  The Hindu




ide

Video: When Steve Jobs Paused For 18 Seconds To Think About His Answer

In this clip, Steve Jobs pauses for 18 seconds to contemplate a question deeply before answering.




ide

Chinese Store Swaps Mannequins For Real Women, Video Shocks Internet

The video features models dressed in the latest fashion, strutting like mannequins on a moving runway outside the designer store ITIB.




ide

Bride Kalina Marie Devastated After Almost No One Turns Up For Her Wedding

The couple, together for nine years, had announced the wedding date in January and were eagerly looking forward to their long-awaited special day.




ide

[Exclusive Interview] This Startup Promises Out-Of-The-Box Ideas For Businesses To Scale Their Content Marketing

Recently, we interacted with Mr. Ayush Shukla, Creator & Founder, Finnet Media, and asked him about his startup journey, and their plans to disrupt the ecosystem with ideas and passion. With a B.A in Economic Honors from Delhi University, Ayush learned the nuances of networking and explored it for his self-growth by building a strong […]




ide

Cape Town Secures Historic Bid to Host WorldPride 2028

[allAfrica] We are excited to share the momentous news that Cape Town Pride has officially won the bid to host WorldPride 2028. This significant event is a global celebration of LGBTQ+ pride and rights, marking a pivotal milestone not only for the LGBTQ+ community in the city but also for the entire African continent. This victory positions Cape Town as a leading symbol of inclusivity and diversity, showcasing its commitment to advancing a welcoming environment for all.




ide

GDDR7: The Ideal Memory Solution in AI Inference

The generative AI market is experiencing rapid growth, driven by the increasing parameter size of Large Language Models (LLMs). This growth is pushing the boundaries of performance requirements for training hardware within data centers. For an in-depth look at this, consider the insights provided in "HBM3E: All About Bandwidth". Once trained, these models are deployed across a diverse range of applications. They are transforming sectors such as finance, meteorology, image and voice recognition, healthcare, augmented reality, high-speed trading, and industrial, to name just a few.

The critical process that utilizes these trained models is called AI inference. Inference is the capability of processing real-time data through a trained model to swiftly and effectively generate predictions that yield actionable outcomes. While the AI market has primarily focused on the requirements of training infrastructure, there is an anticipated shift towards prioritizing inference as these models are deployed.

The computational power and memory bandwidth required for inference are significantly lower than those needed for training. Inference engines typically need between 300-700GB/s of memory bandwidth, compared to 1-3TB/s for training. Additionally, the cost of inference needs to be lower, as these systems will be widely deployed not only in data centers but also at the network's edge (e.g., 5G) and in end-user equipment like security cameras, cell phones, and automobiles.

When designing an AI inference engine, there are several memory options to consider, including DDR, LPDDR, GDDR, and HBM. The choice depends on the specific application, bandwidth, and cost requirements. DDR and LPDDR offer good memory density, HBM provides the highest bandwidth but requires 2.5D packaging, and GDDR offers high bandwidth using standard packaging and PCB technology.

The GDDR7 standard, announced by JEDEC in March of this year, features a data rate of up to 192GB/s per device, a chip density of 32Gb, and the latest data integrity features. The high data rate is achieved by using PAM3 (Pulse Amplitude Modulation) with 3 levels (+1, 0, -1) to transmit 3 bits over 2 cycles, whereas the current GDDR6 generation uses NRZ (non-return-to-zero) to transmit 2 bits over 2 cycles.

GDDR7 offers many advantages for AI Inference having the best balance of bandwidth and cost. For example, an AI Inference system requiring 500GB/s memory bandwidth will need only 4 GDDR7 DRAM running at 32Gbp/s (32 data bits x 32Gbp/s per pin = 1024Gb/s per DRAM). The same system would use 13 LPDDR5X PHYs running at 9.6Gbp/s, which is currently the highest data rate available (32 data bits x 9.6Gb/s = 307Gb/s per DRAM).

Cadence stands at the forefront of AI inference hardware support, being the first IP company to roll out GDDR7 PHYs capable of impressive speeds up to 36Gb/s across various process nodes. This milestone builds on Cadence's established leadership in GDDR6 PHY IP, which has been available since 2019. The company caters to a diverse client base spanning AI inference, graphics, automotive, and networking equipment.

While GDDR7 continues to utilize standard PCB board technology, the increased signal speeds seen in GDDR6 (20Gbp/s) and now GDDR7 (36Gb/s) calls for careful attention with the physical design to ensure optimized system performance. In addition to providing the PHY, Cadence also offers comprehensive PCB and package reference design, which are essential in helping customers achieve optimal signal and power integrity (SI/PI) for their systems.

Cadence is dedicated to ensuring customer success beyond just providing hardware. They provide expert support in SI/PI, collaborating closely with customers throughout the design process. This approach ensures that customers can benefit from Cadence's expertise in navigating the complexities of high-speed design and achieving optimal performance in their AI inference systems.

As the AI market continues to advance, Cadence remains at the forefront by offering a comprehensive memory IP portfolio tailored for every segment of this dynamic market. From DDR5 and HBM3E, which cater to the intensive demands of training in servers and high-performance computing (HPC), to LPDDR5X designed for low-end inference at the network edge and in consumer devices, Cadence's offerings cover a wide range of applications.

Looking to the future, Cadence is dedicated to innovating at the forefront of memory system performance, ensuring that the evolving needs of AI training and inference are met with the highest standards of excellence. Whether it's pushing the boundaries with GDDR7 or exploring new technologies, Cadence is dedicated to driving the AI revolution forward, one breakthrough at a time.

Learn more about Cadence GDDR7 PHY

Learn more about Cadence Simulation VIP for GDDR7.




ide

μWaveRiders: New Python Library Provides a Higher-Level API in the Cadence AWR Design Environment

A new Python library has been written to facilitate an interface between Python and AWR software using a command structure that adheres more closely to Python coding conventions. This library is labeled "pyawr-utils" and it is installed using the standard Python pip command. Comprehensive documentation for installing and using pyawr-utils is available.(read more)




ide

μWaveRiders: Setting Up a Successful AWR Design Environment Design - UI and Simulation

When starting a new design, it's important to take the time to consider design recommendations that prevent problems that can arise later in the design cycle. This two-part compilation of guidelines for starting a new design is the result of years of Cadence AWR Design Environment platform Support experience with designs. Pre-design decisions for user interface, simulation, layout, and library configuration lay the groundwork for a successful and efficient AWR design. This blog covers the user interface (UI) and simulation considerations designers should note prior to starting a design.(read more)




ide

μWaveRiders: Thermal Analysis for RF Power Applications

Thermal analysis with the Cadence Celsius Thermal Solver integrated within the AWR Microwave Office circuit simulator gives designers an understanding of device operating temperatures related to power dissipation. That temperature information can be introduced into an electrothermal model to predict the impact on RF performance.(read more)




ide

μWaveRiders: Cadence AWR Design Environment V22.1 Software Release Highlights

The Cadence AWR Design Environment V22.1 production release is now available for download at Cadence Downloads with design environment, AWR Microwave Office, AWR VSS, AWR Analyst, and other enhancements.(read more)




ide

μWaveRiders: Scoring Goals with the Latest AWR Design Environment Optimizer

AWR V22.1 software introduces the Pointer-Hybrid optimization method which uses a combination of optimization methods, switching back and forth between methods to efficiently find the lowest optimization error function cost. The optimization algorithm automatically determines when to switch to a different optimization method, making this a superior method over manual selection of algorithms. This method is particularly robust in regards to finding the global minima without getting stuck in a local minima well.(read more)




ide

μWaveRiders: Setting Up a Successful AWR Design Environment Design - Layout and Component Libraries

When starting a new design, it's important to take the time to consider design recommendations that prevent problems that can arise later in the design cycle. This two-part compilation of guidelines for starting a new design is the result of years of Cadence AWR Design Environment platform Support experience with designs. Pre-design decisions for user interface, simulation, layout, and library configuration lay the groundwork for a successful and efficient AWR design. This blog, part 2, covers the layout and component library considerations designers should note prior to starting a design.(read more)




ide

How to identify old Orcad Schematic entry version


Good morning,
I dug up an old project from 2005 and I should open the schematic to check some things.
This is the schematic of a XILINX XC95108-pq160 CPLD which the XILINX ISE 6.1 software then translated and compiled, to generate a JEDEC file to burn CPLD.

My problem is that I can't open schematics with the versions of Orcad Schematic Entry that I have.
Can anyone help me understand which version of Orcad Schematic Entry I need to install to see these files?

I shared the files on:
drive.google.com/.../view

Thank you very much




ide

The Mechanical Side of Multiphysics System Simulation

Introduction

Multiphysics is an integral part of the concepts around digital twins. In this post, I want to discuss the mechanical aspects of multiphysics in system simulations, which are critical for 3D-IC, multi-die, and chiplet design.

The physical world in which we live is growing ever more electrified. Think of the transformation that the cell phone has brought into our lives, as has the present-day migration to electronic vehicles (EVs). These products are not only feats of electronic engineering but of mechanical as well, as the electronics find themselves in new and novel forms such as foldable phones and flying cars (eVOTLs). Here, engineering domains must co-exist and collaborate to bring about the best end products possible.

Start with the electronics—chips, chiplets, IC packaging, PCB, and modules. But now put these into a new form factor that can be dropped or submerged in water or accelerated along a highway. What about drop testing, aerodynamics, and aeroacoustics? These largely computational fluid dynamics (CFD) and/or mechanical multiphysics phenomena must also be accounted for. And then how does the drop testing impact the electrical performance? The world of electronics and its vast array of end products is pushing us beyond pure electrical engineering to be more broadly minded and develop not only heterogeneous products but heterogeneous engineering teams as well.

Cadence's Unique Expertise

It's at this crossroad of complexity and electronic proliferation that Cadence shines. Let's take, for example, the latest push for higher-performing high-bandwidth memory (HBM) devices and AI data center expansion. These technologies are growing from several layers to 12, and I can't emphasize enough the importance of teamwork and integrated solutions in tackling the challenges of advanced packaging technologies and how collaboration is shaping the future of semiconductor innovation and paving the way for cutting-edge developments in the industry.

These layered electronics are powered, and power creates heat. Heat needs to be understood, and thus, the thermal integrity issues uncovered along the way must be addressed. However, electronic thermal issues are just the first domino in a chain of interdependencies. What about the thermal stress and warpage that can be caused by the powering of these stacked devices? How does that then lend to mechanical stress and even material fatigue as the temperature cycles from high to low and back through the use of the electronic device? This is just one example in a long list of many...

Cadence Multiphysics Analysis Offerings

The confluence of electrical, mechanical, and CFD is exactly why Cadence expanded into multiphysics at a significant rate starting in 2019 with the announcement of the Clarity 3D Solver and Celsius Thermal Solver products for electromagnetic (EM) and thermal multiphysics system simulations. Recent acquisitions of Numeca, Pointwise, and Cascade (now branded within Cadence as the Fidelity CFD Platform) as well as Future Facilities (now the Cadence Reality Digital Twin product line) are all adding CFD expertise. The recent addition of Beta CAE brings mechanical multiphysics to the suite of solutions available from Cadence. The full breadth of these multiphysics system analyses, spanning EM, thermal, signal integrity/power integrity (SI/PI), CFD, and now mechanical, creates a platform for digital twinning across a wide array of applications. You can learn more by viewing Cadence's Reality Digital Twin platform launch on the keynote stage at NVIDIA's GTC in March, as well as this Designed with Cadence video: NV5, NVIDIA, and Cadence Collaboration Optimizes Data Centers.

Conclusion

Ever more sophisticated electronic designs are in demand to fulfill the needs of tomorrow's technologies, driving a convergence of electrical and mechanical aspects of multiphysics in system simulations. To successfully produce the exciting new products of the future, both domains must be able to collaborate effectively and efficiently. Cadence is fully committed to developing and providing our customers with the software products they need to enable this electrical/mechanical evolution. From EM, to thermal, to SI/PI, CFD, and mechanical, Cadence is enabling digital twinning across a wide array of applications that are forging pathways to the future.

For more information on Cadence's multiphysics system analysis offerings, visit our webpage and download our brochure.




ide

slide hug only is wrong?

Hi,

Can you tell me which setting is causing this?

In the general edit. I try slide via to other position. but the slide is wrong.

in the cm,i set pad-pad connect is all allowed,and i turn off via to pad spacing in the same net spacing. only turn on via to via spacing in the same net spacing,set to via to via spacing =0.

default the via is closer to the pad edge, I think the correct location is show in the pic2.

 




ide

Randomization considerations for PCIe Integrity and Data Encryption Verification Challenges

Peripheral Component Interconnect Express (PCIe) is a high-speed interface standard widely used for connecting processors, memory, and peripherals. With the increasing reliance on PCIe to handle sensitive data and critical high-speed data transfer, ensuring data integrity and encryption during verification is the most essential goal. As we know, in the field of verification, randomization is a key technique that drives robust PCIe verification. It introduces unpredictability to simulate real-world conditions and uncover hidden bugs from the design. This blog examines the significance of randomization in PCIe IDE verification, focusing on how it ensures data integrity and encryption reliability, while also highlighting the unique challenges it presents. For more relevant details and understanding on PCIe IDE you can refer to Introducing PCIe's Integrity and Data Encryption Feature . The Importance of Data Integrity and Data Encryption in PCIe Devices Data Integrity : Ensures that the transmitted data arrives unchanged from source to destination. Even minor corruption in data packets can compromise system reliability, making integrity a critical aspect of PCIe verification. Data Encryption : Protects sensitive data from unauthorized access during transmission. Encryption in PCIe follows a standard to secure information while operating at high speeds. Maintaining both data integrity and data encryption at PCIe’s high-speed data transfer rate of 64GT/s in PCIe 6.0 and 128GT/s in PCIe 7.0 is essential for all end point devices. However, validating these mechanisms requires comprehensive testing and verification methodologies, which is where randomization plays a very crucial role. You can refer to Why IDE Security Technology for PCIe and CXL? for more details on this. Randomization in PCIe Verification Randomization refers to the generation of test scenarios with unpredictable inputs and conditions to expose corner cases. In PCIe verification, this technique helps us to ensure that all possible behaviors are tested, including rare or unexpected situations that could cause data corruption or encryption failures that may cause serious hindrances later. So, for PCIe IDE verification, we are considering the randomization that helps us verify behavior more efficiently. Randomization for Data Integrity Verification Here are some approaches of randomized verifications that mimic real-world traffic conditions, uncovering subtle integrity issues that might not surface in normal verification methods. 1. Randomized Packet Injection: This technique randomized data packets and injected into the communication stream between devices. Here we Inject random, malformed, or out-of-sequence packets into the PCIe link and mix valid and invalid IDE-encrypted packets to check the system’s ability to detect and reject unauthorized or invalid packets. Checking if encryption/decryption occurs correctly across packets. On verifying, we check if the system logs proper errors or alerts when encountering invalid packets. It ensures coverage of different data paths and robust protocol check. This technique helps assess the resilience of the IDE feature in PCIe in below terms: (i) Data corruption: Detecting if the system can maintain data integrity. (ii) Encryption failures: Testing the robustness of the encryption under random data injection. (iii) Packet ordering errors: Ensuring reordering does not affect data delivery. 2. Random Errors and Fault Injection: It involves simulating random bit flips, PCRC errors, or protocol violations to help validate the robustness of error detection and correction mechanisms of PCIe. These techniques help assess how well the PCIe IDE implementation: (i) Detects and responds to unexpected errors. (ii) Maintains secure communication under stress. (iii) Follows the PCIe error recovery and reporting mechanisms (AER – Advanced Error Reporting). (iv) Ensures encryption and decryption states stay synchronized across endpoints. 3. Traffic Pattern Randomization: Randomizing the sequence, size, and timing of data packets helps test how the device maintains data integrity under heavy, unpredictable traffic loads. Randomization for Data Encryption Verification Encryption adds complexity to verification, as encrypted data streams are not readable for traditional checks. Randomization becomes essential to test how encryption behaves under different scenarios. Randomization in data encryption verification ensures that vulnerabilities, such as key reuse or predictable patterns, are identified and mitigated. 1. Random Encryption Keys and Payloads: Randomly varying keys and payloads help validate the correctness of encryption without hardcoding assumptions. This ensures that encryption logic behaves correctly across all possible inputs. 2. Randomized Initialization Vectors (IVs): Many encryption protocols require a unique IV for each transaction. Randomized IVs ensure that encryption does not repeat patterns. To understand the IDE Key management flow, we can follow the below diagram that illustrates a detailed example key programming flow using the IDE_KM protocol. Figure 1: IDE_KM Example As Figure 1 shows, the functionality of the IDE_KM protocol involves Start of IDE_KM Session, Device Capability Discovery, Key Request from the Host, Key Programming to PCIe Device, and Key Acknowledgment. First, the Host starts the IDE_KM session by detecting the presence of the PCIe devices; if the device supports the IDE protocol, the system continues with the key programming process. Then a query occurs to discover the device’s encryption capabilities; it ensures whether the device supports dynamic key updates or static keys. Then the host sends a request to the Key Management Entity to obtain a key suitable for the devices. Once the key is obtained, the host programs the key into the IDE Controller on the PCIe endpoint. Both the host and the device now share the same key to encrypt and authenticate traffic. The device acknowledges that it has received and successfully installed the encryption key and the acknowledgment message is sent back to the host. Once both the host and the PCIe endpoint are configured with the key, a secure communication channel is established. From this point, all data transmitted over the PCIe link is encrypted to maintain confidentiality and integrity. IDE_KM plays a crucial role in distributing keys in a secure manner and maintaining encryption and integrity for PCIe transactions. This key programming flow ensures that a secure communication channel is established between the host and the PCIe device. Hence, the Randomized key approach ensures that the encryption does not repeat patterns. 3. Randomization PHE: Partial Header Encryption (PHE) is an additional mechanism added to Integrity and Data Encryption (IDE) in PCIe 6.0. PHE validation using a variety of traffic; incorporating randomization in APIs provided for validating PHE feature can add more robust Encryption to the data. Partial Header Encryption in Integrity and Data Encryption for PCIe has more detailed information on this. Figure 2: High-Level Flow for Partial Header Encryption 4. Randomization on IDE Address Association Register values: IDE Address Association Register 1/2/3 are supposed to be configured considering the memory address range of IDE partner ports. The fields of IDE address registers are split multiple values such as Memory Base Lower, Memory Limit Lower, Memory Base Upper, and Memory Limit Upper. IDE implementation can have multiple register blocks considering addresses with 32 or 64, different registers sizes, 0-255 selective streams, 0-15 address blocks, etc. This Randomization verification can help verify all the corner cases. Please refer to Figure 2. Figure 3: IDE Address Association Register 5. Random Faults During Encryption: Injecting random faults (e.g., dropped packets or timing mismatches) ensures the system can handle disruptions and prevent data leakage. Challenges of IDE Randomization and its Solution Randomization introduces a vast number of scenarios, making it computationally intensive to simulate every possibility. Constrained randomization limits random inputs to valid ranges while still covering edge cases. Again, using coverage-driven verification to ensure critical scenarios are tested without excessive redundancy. Verifying encrypted data with random inputs increases complexity. Encryption masks data, making it hard to verify outputs without compromising security. Here we can implement various IDE checks on the IDE callback to analyze encrypted traffic without decrypting it. Randomization can trigger unexpected failures, which are often difficult to reproduce. By using seed-based randomization, a specific seed generates a repeatable random sequence. This helps in reproducing and analyzing the behavior more precisely. Conclusion Randomization is a powerful technique in PCIe verification, ensuring robust validation of both data integrity and data encryption. It helps us to uncover subtle bugs and edge cases that a non-randomized testing might miss. In Cadence PCIe VIP, we support full-fledged IDE Verification with rigorous randomized verification that ensures data integrity. Robust and reliable encryption mechanisms ensure secure and efficient data communication. However, randomization also brings various challenges, and to overcome them we adopt a combination of constrained randomization, seed-based testing, and coverage-driven verification. As PCIe continues to evolve with higher speeds and focuses on high security demands, our Cadence PCIe VIP ensures it is in line with industry demand and verify high-performance systems that safeguard data in real-world environments with excellence. For more information, you can refer to Verification of Integrity and Data Encryption(IDE) for PCIe Devices and Industry's First Adopted VIP for PCIe 7.0 . More Information: For more info on how Cadence PCIe Verification IP and TripleCheck VIP enables users to confidently verify IDE, see our VIP for PCI Express , VIP for Compute Express Link for and TripleCheck for PCI Express For more information on PCIe in general, and on the various PCI standards, see the PCI-SIG website .




ide

A Guide to Build A Mini Guitar/Audio Amplifier Based on LM386

Hey, is it suitable to post here? I wanted a small yet robust amp for practicing while I travel. I wanted something that would fit in my pocket yet still be loud enough to hear.

Presented here is a amplifier based upon the LM386 Audio Amplifier.

There is a standard circuit in the data sheet that is an excellent place to start.

Materials needed:
1 - HM359 project box
1 - 668-1237 speaker
1 - BS6I battery conn
1 - CP1-3515 stereo jack
1 - SC1316 stereo jack
2 - 450-1742 knob
1 - 679-1856 switch
1- 3mm LED
1 - 10 ohm 1/4W resistor
1 - 10uF ceramic cap
1 - .05 uF ceramic cap
1 - 420 uF electrolytic cap
1 - 8 ohm resistor
2 - 51AADB24 10K pot
1 - HM1252 circuit board
1 - LM386N-4 amplifier

Wire and Solder
Step 1: Prep the enclosure

Careful planning is required the first time you free build a circuit. The circuit board has solder pads but not traces. You will have to use thin wire to make the connections for the circuit to work.

Begin by laying out the components on the circuit board that will need to pass through the enclosure. This enclosure has a removable top panel which will be used for the volume, gain and 1/4 inch stereo jack.

Space is limited to check for fit before drilling.

All drilling of the plastic should be done with a step drill bit. This will make the cleanest holes without breaking the plastic.

Lay out the pots a few spaces back but still in line with the desired position. mark the center of each pot shaft then drill with a step drill tot he tightest fitting hole size. Make a center mark between the pot holes then drill for the stereo jack

On the inside of the top cover position and mark where the speaker will go.

Make a template on grid paper the same size as the speaker.

Tape the template to the inside of the cover as shown then use a step bit to drill holes on the center of every square in the grid. This will form the speaker grille. clean up the holes.

Step 2: place the major components

Solder the pots to the circuit board as shown. then place the stereo jack(note in order to get the final fit I had to trim and modify the stereo jack housing a little)

Next, position and solder the switch on the circuit board and mark a space on the top cover that will need to be cut for the switch opening. Use a small file to cut the opening.

Use a sharp knife to bevel the edges of the switch hole to allow for easier operation.

Drill a hole in the side of the upper case for the headphone jack and fasten it in place. ( I had to recess the hole a bit for the retaining nut to grab)

Step 3: Build the circuit

The speaker is held in place by using 2 small brackets that come with the serial cable connector hood. ( I had a bunch around that would never be used)

Refer the the circuit shown from the datasheet and the datasheet for the LM386. The basic circuit only has the volume control while the datasheet shows how to add a gain control across pins 1 and 8 of the amplifier.

The speaker is wired in series with the headphone jack. The headphone jack has internal switches that shut the speaker off when the phones are plugged in.

I chose to use a chip socket for the amplifier which make prototyping easier since you do not have to worry about solder heating as much.

Carefully lay the circuit out on the board and begin wiring components together. I added a second pot and cap in series between pins 1 and 8 of the amp to be able to manually set the gain in addition to volume.

Check you connections with a multimeter before adding the amplifier.

I chose to add a LED indicator for power. This was done by using one side of switch contacts from the battery. The LED is in series with a 220 ohm resistor.

Assemble the case and insert the battery.

Step 4: Final notes

If the speaker is noisy while the headphones work normally, try reversing the speaker connections. If it does not correct the issue, connect a 8 ohm resistor across the speaker contacts.

You may have to place an insulating layer between the speaker and the place where the stereo jack comes through to prevent contact. This will be noted by a loud buzz.

You may have to add some foam in the battery compartment to stop the battery from banging around.

For reference, I've also read an article about amplifiers: http://www.apogeeweb.net/article/60.html

Thanks for reading!




ide

Using vManager to identify line coverage from a specific test

I have been using the rank feature to identify tests that are redundant in our environment, but then I realized I'd also like to be able to see exactly what coverage goes into increasing the delta_cov value for a given test. If I had a test in my rank report that contributed 0.5% of the delta_cov, how could I got about seeing exactly where that 0.5% was coming from? It seems like that might be part of the correlate function, but I couldn't mange to find a way to see what specific coverage was being contributed for a given test.




ide

Quickchat Video Interview: Introducing Cadence Optimality and OnCloud for Systems Analysis and Signoff

Microwaves & RF's David Maliniak interviews Sherry Hess of Cadence about recently announced products of Optimality and OnCloud.(read more)




ide

PSS Shooting - High Q crystal oscillator - Simulator by mistake detects a frequency divider

Hi *,

 

I am simulating a 32kHz high Q crystal oscillator with a pulse shaping circuit. I set up a PSS analysis using the Shooting Newton engine. I set a beat frequency of 32k and used the crystal output and ground as reference nodes. After the initial transient the amplitude growth was already pretty much settled such that the shooting iterations could continue the job.

 

My problem is: In 5...10% of my PVT runs the simulator detects a frequency divider in the initial transient simulation. The output log says:

 

Frequency divided by 3 at node <xxx>

The Estimated oscillating frequency from Tstab Tran is = 11.0193 kHz .

 

However, the mentioned node is only part of the control logic and is always constant (but it has some ripples and glitches which are all less than 30uV). These glitches spoil my fundamental frequency (11kHz instead of 32kHz). Sometimes the simulator detects a frequency division by 2 or 3 and the mentioned node <xxx> is different depending on PVT - but the node is always a genuine high or low signal inside my control logic.

 

How can I tell the simulator that there is no frequency divider and it should only observe the given node pair in the PSS analysis setup to estimate the fundamental frequency? I have tried the following workarounds but none of them worked reliably:

 

- extended/reduced the initial transient simulation time

- decreased accuracy

- preset override with Euler integration method for the initial transient to damp glitches

- tried different initial conditions

- specified various oscillator nodes in the analysis setup form

By the way, I am using Spectre X (version 21.1.0.389.ISR8) with CX accuracy.

 

Thanks for your support and best regards

Stephan




ide

AllegroX. ConstraintManager: how to define an exemption inside a SPACING RULE ?

Hi

I have fixed a SPACING RULE (SP1) for a CLASS_DIFF_PAIR whereas for via associated to the net (DP_VIA), the DISTANCE > 60mils respect to ANY other vias (PTH, BB, TEST vias)

Now my problem is that this rules should NOT be applied for GND VIAS (STICHING VIA) which must be placed at a distance < 40mils respect to DP_VIA

How to create an exemption to the SPACING RULE (SP1)?




ide

Technical Webinar: A Beginner’s Guide to RTL-to-GDSII Front-End Flow

In this training webinar, we explore the concepts of RTL design, design verification, and coverage analysis while unveiling the exciting world of front-end design flow. We will guide you through the essential steps in creating integrated circuits, the building blocks of modern electronics.

We’ll break down the process into manageable stages, from defining the chip’s functionality to its physical realization. We’ll investigate the front-end part of the RTL-to-GDSII flow—from specification to functional verification and design coverage—and explore:

  • Key concepts of specifying chip behavior and performance
  • How to translate ideas into a digital blueprint and transform that into a design
  • How to ensure your design is free of errors

This webinar provides practical knowledge, making it your gateway to understanding the magic behind RTL-to-GDSII front-end design flow.

When Is the Webinar?

Date and Time

Wednesday, September 18, 2024
07:00 PDT San Jose / 10:00 EDT New York / 15:00 BST London / 16:00 CEST Munich / 17:00 IDT Jerusalem / 19:30 IST Bangalore / 22:00 CST Beijing 

REGISTER

To register for this webinar, sign in with your Cadence Support account (email ID and password) to log in to the Learning and Support System.

Then select Enroll to register for the session. Once registered, you’ll receive a confirmation email containing all login details.

If you don’t have a Cadence Support account, go to Cadence User Registration and complete the requested information. Or visit Registration Help.

For inquiries or issues with registration, reach out to eur_training@cadence.com.

For inquiries or issues with registration, reach out to eur_training@cadence.com.

To view our complete training offerings, visit the Cadence Training website.

Want to share this and other great Cadence learning opportunities with someone else? Tell them to subscribe.

Want to Learn More?

This link gives you more information about the related training course and a link to enroll:

Cadence RTL-to-GDSII Flow Training

The course includes slides with audio and downloadable laboratory exercises designed to emphasize the topics covered in the lecture. There is also a Digital Badge available for the training.

 

The online class is free for all Cadence customers with a Cadence Learning and Support Portal account. For instructor-led training sessions "Live" or "Blended" please contact Cadence Training.

Also, take this opportunity to register for the free Online Trainings related to this webinar topic.

Cadence RTL-to-GDSII Flow

Xcelium Simulator

Verilog Language and Application

Xcelium Integrated Coverage

Related Training Bytes

How to Run the Synthesis Without DFT?

How to Run the Synthesis Flow with DFT? (Video)

Related Blogs

Did You Miss the RTL-to-GDSII Webinar? No Worries, the Recording Is Available!

Training Insights – Why Is RTL Translated into Gate-Level Netlist?

Training Bytes: They May Be Shorter, But the Impact Is Stronger!

Cadence Support - A Round-the-Clock Problem Solver, Webinar Recording Available!




ide

EBRD president looks to African expansion

The EU is considering a broader mandate for the EBRD, and its president, Sir Suma Chakrabarti, believes its model would work in sub-Saharan Africa.




ide

Madeira vice-president eyes fiscal independence from Lisbon

Pedro Calado, vice-president of Madeira’s regional government, tells Sebastian Shehadi about the island's capacity for more upmarket tourism and its ongoing struggle to gain financial independence from Portugal. 




ide

Android users spot a TikTok-style swipe on YouTube’s horizontal videos

YouTube might be testing a swipe-up gesture in its horizontal video player, but users aren't thrilled.




ide

Why Elon Musk is the real winner of the 2024 US Presidential election

Here's who Elon Musk is considering for a Donald Trump administration that benefits him and his companies like Tesla and SpaceX.




ide

The best birthday gift ideas for your mom

Gifts for moms need to be thoughtful and unique, and this list is full of them.




ide

57+ unique gift ideas for Dad that are way better than a tie

Browse our favorite dad gift ideas for the holiday season. Try to think outside the gift card this year.




ide

Can we keep politics out of literature? BookTok is divided.

TikTok is divided over whether books are inherently political after Donald Trump's win in the U.S. presidential election.




ide

Is T-Mobile down? Users report widespread outages

T-Mobile and its Mint Mobile subsidiary had trouble on Tuesday.




ide

‘This is punitive’: Kansas Senate committee considers poison pill wind energy bills

Senators heard three hours of testimony from anti-wind sources and just one hour from proponents of renewable energy




ide

Verisign Provides Open Source Implementation of Merkle Tree Ladder Mode

The quantum computing era is coming, and it will change everything about how the world connects online. While quantum computing will yield tremendous benefits, it will also create new risks, so it’s essential that we prepare our critical internet infrastructure for what’s to come. That’s why we’re so pleased to share our latest efforts in […]

The post Verisign Provides Open Source Implementation of Merkle Tree Ladder Mode appeared first on Verisign Blog.




ide

Austin Calling: As Texas Absorbs Influx of Residents, Rekor Taps NVIDIA Technology for Roadway Safety, Traffic Relief

Austin is drawing people to jobs, music venues, comedy clubs, barbecue and more. But with this boom has come a big city blues: traffic jams. Rekor, which offers traffic management and public safety analytics, has a front-row seat to the increasing traffic from an influx of new residents migrating to Austin. Rekor works with the Read Article




ide

Lab Confidential: Japan Research Keeps Healthcare Data Secure

Established 77 years ago, Mitsui & Co stays vibrant by building businesses and ecosystems with new technologies like generative AI and confidential computing. Digital transformation takes many forms at the Tokyo-based conglomerate with 16 divisions. In one case, it’s an autonomous trucking service, in another it’s a geospatial analysis platform. Mitsui even collaborates with a Read Article




ide

EWC Again Ranked Among Top Government-Affiliated Think Tanks Worldwide

EWC Again Ranked Among Top Government-Affiliated Think Tanks Worldwide EWC Again Ranked Among Top Government-Affiliated Think Tanks Worldwide
ferrard

News Release

Explore

News Release

Explore




ide

Federated States of Micronesia President Panuelo Visits East-West Center

Federated States of Micronesia President Panuelo Visits East-West Center Federated States of Micronesia President Panuelo Visits East-West Center
brophyc

News Release

Explore

News Release

Explore




ide

Former Marshall Islands President Hilda Heine Joins EWC Board

Former Marshall Islands President Hilda Heine Joins EWC Board Former Marshall Islands President Hilda Heine Joins EWC Board
palmaj

News Release

Explore

News Release

Explore




ide

New President Suzanne Vares-Lum Delivers Inaugural Remarks on East-West Center’s Regional Role

New President Suzanne Vares-Lum Delivers Inaugural Remarks on East-West Center’s Regional Role New President Suzanne Vares-Lum Delivers Inaugural Remarks on East-West Center’s Regional Role
brophyc

News Release

Explore

News Release

Explore




ide

In Hawai‘i and the Pacific Islands, Climate Change Means Billions of Dollars of Coastal Damage, Widespread Coral Death and Human Health Risks, Official US Assessment Finds

In Hawai‘i and the Pacific Islands, Climate Change Means Billions of Dollars of Coastal Damage, Widespread Coral Death and Human Health Risks, Official US Assessment Finds In Hawai‘i and the Pacific Islands, Climate Change Means Billions of Dollars of Coastal Damage, Widespread Coral Death and Human Health Risks, Official US Assessment Finds
hasegaws

News Release

Explore

News Release

Explore




ide

East-West Center Disease Specialist Warns Hawaiʻi Residents: ‘This is Not the Time to Take Chances’

East-West Center Disease Specialist Warns Hawaiʻi Residents: ‘This is Not the Time to Take Chances’ East-West Center Disease Specialist Warns Hawaiʻi Residents: ‘This is Not the Time to Take Chances’
telleid

News Release

Explore

News Release

Explore




ide

East-West Center Board Names Suzanne Vares-Lum as Institution’s Next President

East-West Center Board Names Suzanne Vares-Lum as Institution’s Next President East-West Center Board Names Suzanne Vares-Lum as Institution’s Next President
brophyc

News Release

Explore

News Release

Explore




ide

East-West Center President Presents Tonga Red Cross with Eruption Recovery Funds Raised by Center Community

East-West Center President Presents Tonga Red Cross with Eruption Recovery Funds Raised by Center Community East-West Center President Presents Tonga Red Cross with Eruption Recovery Funds Raised by Center Community
brophyc

News Release

Explore

News Release

Explore




ide

International horticulture expo attracts worldwide green fingers to Chengdu

THE International Horticultural Exhibition 2024 — which opened in Chengdu, capital of southwest China’s Sichuan Province, last week — offers a comprehensive and on-site “101 handbook” for gardening devotees




ide

God’s Providence in Christ’s Burial (Selected Scriptures)

Check here each week to keep up with the latest from John MacArthur's pulpit at Grace Community Church.




ide

12 bodies recovered from Cameroon landslides

Yaounde, Cameroon — Workers have recovered 12 bodies following landslides that engulfed a road in the west of Cameroon, a regional official said Saturday, adding there is no hope of finding survivors.   State television CRTV reported the comments by the governor of Ouest region, Augustine Awa Fonka.   "In our opinion, there is no longer any possibility of finding survivors," he told the station.  Only 12 bodies had been recovered from the site of the disaster, the last of them on Saturday morning, he said.   Dozens more people are still missing, and the search for bodies is still continuing, he added.   Two landslides hit the Dschang cliff road Tuesday — the second as emergency workers were using heavy machinery to try to clear the road.   Vehicles hit included three coaches with around 20 seats each, five six-seater vehicles, and several motorbikes said Awa Fonka in an earlier statement.   Cameroon's roads are notoriously dangerous, with almost 3,000 deaths each year in accidents, or more than 10 deaths per 100,000 inhabitants, according to the latest figures from the World Health Organization, published in 2023.    In early September, a tractor-trailer carrying passengers plunged off a cliff road into a ravine near the town of Dschang, killing eight people and injuring 62 others, including eight children. 




ide

Niger rebels fighting for ousted president's release hand over weapons

Niamey, Niger — Nine members of an armed rebel movement seeking the release of Niger's ousted president surrendered Monday, officials in the north of the military-ruled country said.  The rebel Patriotic Liberation Front (FPL) was set up in August 2023, a month after Niger's democratically elected president, Mohamed Bazoum, was overthrown in a military coup.  Since then, Bazoum has been imprisoned with his wife, Hadiza, at the presidential palace in Niamey.  An official from Agadez governorate told AFP, "Nine FPL fighters repented and handed over their weapons and ammunition on Monday during a ceremony in the presence of General Ibra Boulama," who is the governor of the region. FPL members began surrendering at the start of the month after discreet negotiations by "influential local personalities," the Air-Info media outlet reported.  On November 1, FPL spokesman Idrissa Madaki and three other members turned themselves in separately in two towns near the Libyan border, according to Niger's army and national television.  Last week, FPL leader Mahmoud Sallah was "provisionally stripped" of his nationality as were seven members of the Bazoum regime who were suspected of "terrorist bomb attacks."  Sallah had claimed responsibility for attacking the army in the north and disabling part of a crucial pipeline carrying crude oil to Benin in June. He had also threatened to attack strategic sites.  Another rebel movement also demanding Bazoum's release, the Patriotic Front for Justice (FPJ), has held since June the military prefect of northeastern Bilma and four of his security team, who were kidnapped after an ambush.  Authorities in Niger, which is also battling attacks by jihadist groups, have stepped up security in recent weeks, with military patrols, checks and searches of vehicles.




ide

Somaliland prepares for presidential polls amid regional tension

WASHINGTON — According to the Somaliland National Electoral Commission, more than 1 million registered and eligible voters head to the polls Wednesday to elect their president for the next five years. Three candidates, including incumbent President Muse Bihi Abdi, seek to consolidate the region’s fragile democracy, boost economic growth and gain international recognition that the Somali enclave has struggled to secure for 33 years. Abdi, of the ruling Peace, Unity and Development Party, also known simply as Kulmiye, seeks a second term in Wednesday’s polls. He is running against Abdirahman Mohamed Abdullahi, known as "Irro,” of the Waddani party and Faisal Ali Warabe of the Justice and Development Party, or UCID. Promises In an interview with VOA Somali, each of the three candidates promised to strengthen democracy, boost economic growth and seek international recognition for the breakaway region. Abdi, 76, who was elected head of the region in 2017, has pledged there will be progress on a controversial maritime deal that Ethiopia signed with Somaliland earlier this year. “On our side, we [Somaliland] are free, we are ready to implement the MOU [Memorandum of Understanding], and we are waiting from the Ethiopian side so that we can go ahead with it,” Abdi said. “Ethiopia needs access to sea, and we need recognition, and this MOU is about these needs.” This is the fourth presidential election since the region on the northwestern tip of Somalia broke away from the rest of the country, following the collapse of the Siad Barre regime in 1991. The territory declared independence that year but has never achieved international recognition. Despite this, Somaliland has a functioning government and institutions, a political system that has allowed democratic transfers of power between rival parties, its own currency, passport and armed forces. According to Freedom House's 2024 flagship annual report, which assesses the condition of political rights and civil liberties around the world, Somaliland experienced an erosion of political rights in the past several years. The report said, “Journalists and public figures face pressure from authorities. Minority clans are subject to political and economic marginalization, and violence against women remains a serious problem.” Talks between Somaliland, which is seeking full statehood, and Mogadishu, which fiercely opposes the move, have been held on and off between 2012 and 2020 but failed to bear fruit. Irro, of the Waddani party, who also served as speaker of the House of Representatives of Somaliland’s lower chamber of parliament for more than 11 years, said he would resume talks with Somalia. “It was not our choice to talk to Somalia because our goal has always been getting recognition, but the international community urged us to talk. If I am elected, I will resume the talks if the Somaliland interest lies there, and [at] the same time we will review the previous failed talks,” said Irro. Warabe, of the Justice and Development Party, said that if elected, he would seek recognition through the establishment of a national unity government in Somaliland. “The return of Bihi [Abdi], who has been for seven years in power, and his party, which has been in power since 2010, is not [an] option for Somaliland voters,” Warabe said. “If I am elected, I will lead Somaliland to recognition and [a] more prosperous road.” Regional tension Somaliland’s Wednesday vote comes at a time when tensions remain high between Somalia and Ethiopia over the controversial Memorandum of Understanding that Ethiopia signed with Somaliland. The deal would grant Ethiopia a 50-year lease of access to 20 kilometers of the Red Sea coastline in exchange for the potential recognition of Somaliland's independence, which Somalia views as a violation of its sovereignty and territorial integrity. The deal signed on January 1 in Addis Ababa by Abdi and Ethiopia Prime Minister Abiy Ahmed sparked anger in Mogadishu, which considers Somaliland as part of its national territory. The opposition to the deal plunged the two neighboring countries into a deadlocked situation. In April, Somalia expelled Ethiopian Ambassador Muktar Mohamed Ware, alleging "internal interference" by Ethiopia. Somalia also ordered the closure of Ethiopia's consulates in Somaliland and Puntland, although they remained open. Last month, Somalia expelled Mogadishu-based Ethiopian diplomat Ali Mohamed Adan, who was a counselor at Ethiopia's embassy in Mogadishu. In July and August 2024, two rounds of talks between Ethiopia and Somalia, mediated by Turkey, failed to solve the dispute, with Somalia demanding Ethiopia withdraw from the deal and Ethiopia insisting that it does not infringe on Somalia’s sovereignty. On Saturday, Somali Defense Minister Abdulkadir Mohamed Nur repeated the Somali government position against Ethiopian troop involvement in a new African Union peacekeeping mission in Somalia starting in January. “I can say that Ethiopia is the only government we know of so far that will not participate in the new AU mission because it has violated our sovereignty and national unity," Nur said Saturday in a government-run television interview. Somaliland’s last presidential elections were held in 2017. The current presidential election was originally set to take place in 2022 but was postponed until 2023 and then again pushed back to November 2024, following a controversial extension of Abdi’s mandate by the parliament’s upper house. The Somaliland National Election Commission, or NEC, said at the time that the delays were due to “time, technical and financial constraints.” Opposition parties vehemently denounced the delays. The president is directly elected for a maximum of two five-year terms and appoints the Cabinet. Sahra Eidle Nur and Harun Maruf contributed to this report.




ide

CAF WCL: Aduku confident as Edo Queens battle Masar

Edo Queens head coach Moses Aduku is exuding confidence and expects his charges to go all out against FC Masar in the CAF Women’s Champions League Group B clash starting at 18:00 at Larbi Zaouli Stadium, Casablanca on Wednesday (today), PUNCH Sports Extra reports. The Nigerian and West African champions made a flying start to


Read More