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Agilex5 o_tx_ready and o_rx_ready not asserting
I'm working on a design for a video router, and having trouble with the transceivers. I have the premium devkit to test run the setup. This board has ES silicon, A5ED065BB32AE6SR0. The design would implement 4 or 8 lanes of 12.5Gbps (later 17Gbps or faster), on the GTS XCVR, PCS Direct with IEEE_FLEXE_66 implementation. I followed the User Guide to implement the startup sequence (Reset_Sequencer is OK - it handshakes src_rst_req and src_rst_grant). Figure 65 was my guideline to develop the FSM to bring the Tx and Rx lane up and running. The issue I'm observing: The TX run-time reset sequence (UG Fig 56) completes: i_tx_reset asserted → o_tx_reset_ack asserts → i_tx_reset deasserted → o_tx_pll_locked asserts → src_rs_grant completes. But o_tx_ready never asserts (o_rx_ready likewise). As an extra measure against metastability, all status signals are 2-flop synchronized before use. When I hook up the Transceiver Toolkit, it brings the same channel up reliably. What additional condition gates o_tx_ready that isn't in Figure 56, or what should I look for to get the XCVR reliable up and running. After the initial 'bring_up_sequence, I'll run 4kb packets at 64/66bit to minimize overhead, hence the FLEXE_66. I'm kind of stuck5Views0likes0CommentsAgilex 5 FPGA EMIF: sharing LPDDR4 reference clock between Bank 3A and Bank 3B
Hello, I'm working with an Agilex 5 E-Series A5ED043BB32AI4S device. On my board, I have two 32-bit LPDDR4 interfaces connected to the HSIO banks 3A and 3B. The DDR reference clock is available only on the dedicated differential CLK pins in bank 3A (K105/M105). There is no refclk in bank 3B. HPS EMIF case Using the External Memory Interfaces for HPS IP configured as 2x32 LPDDR4, Quartus instantiates two EMIFs (one in bank 3A and one in bank 3B). From the generated netlist (see attached images), it appears that the PLL associated with the EMIF in bank 3A receives the external CLK (K105/M105), the PLL reference clock is then internally forwarded/shared to the PLL associated with the EMIF in bank 3B. The design routes and fits successfully. This is the intended DDR architecture on my board and works correctly. FPGA EMIF case For debug purposes, I would like to use the LPDDR4 External Memory Interfaces (EMIF) IP together with the EMIF Debug Toolkit. Since this IP only supports up to 1x32 LPDDR4, I instantiated one LPDDR4 EMIF in bank 3A and one LPDDR4 EMIF in bank 3B. The EMIF in bank 3A works correctly when using the REFCLK in bank 3A (on K105/M105). However, I cannot get the EMIF in bank 3B to fit when its PLL reference clock is assigned to the same REFCLK source located in bank 3A. The fitter reports routing/connectivity issues. Questions 1) For the FPGA LPDDR4 External Memory Interfaces (EMIF) IP, is it mandatory that the PLL reference clock be located in the same bank as the EMIF instance? 2) Is there any supported mechanism to share or bypass the PLL reference clock from the EMIF PLL in bank 3A to the EMIF PLL in bank 3B, similar to what appears to be done automatically by the HPS EMIF 2x32 implementation? Any guidance would be appreciated. Thanks,Solved143Views0likes3CommentsQuesta warning vsim-3473 Component instance is not bound.
I am using Quartus Prime Pro 25.3 and Questa Altera Starter FPGA Edition-64 2025.2. I am trying to simulate a design with numerous Altera IP. I get the "not bound" warning for the many, possibly all, of the Altera IP. I have searched online and this forum. I see the same problem identified with ModelSim. I could not find anything specifically Questa. I have tried various posted solutions but have had no success. I generated simulation models for all IP in Quartus. For one of the IP, I tried creating the simulation model in VHDL and Verilog and tried Traditional and Qrun QuestSim flow selection. I checked the QuestaSim box for which simulator script will be generated. I found some solutions talking about using the command line in Questa. I very much prefer to remain in in the GUI for all commands.152Views0likes4CommentsQuarus Prime Installer 24.1 - Error SSL Certificate, Curlcde : 60
Hello, I've got an error during the installation of quartus prime 24.1 : During somes mounths, I uses this solution I've found on the download page. It works great until a few days ago. There s an other solution t use the 24.1 installer now ?37Views0likes2CommentsUnable to Generate Valid PAM4 Eye Diagram and BER Measurements on Stratix 10 SI E-Tile Native PHY
Hardware Intel Stratix 10 Development Kit E-Tile Native PHY IP Single SMA TX and RX channel SMA-to-SMA cable (50 Ω) Software Quartus Prime Pro 18.1 Intel Transceiver Toolkit Configuration PAM4 operation Line rate: 51 Gbps One TX channel connected directly to one RX channel through an SMA cable Design compiles successfully and programming is successful. Problems Encountered 1. PAM4 Eye Detection Failure Transceiver Toolkit reports: "PAM4 eye could not be detected, check lock status and run RX adaptation." 2. RX Adaptation Questions One-time adaptation completes successfully, but: Eye detection still fails. BER measurements do not produce a usable eye diagram. Questions: Should continuous adaptation be used instead? Is there a recommended adaptation sequence before running Eye Viewer? 3. Eye Diagram Parameters Undefined After running Eye Viewer: Eye Width = Undefined Eye Height = Undefined i.e. ratio = (0/0) The heatmap returns with full RED and no eye diagram. The eye diagram is not generated even though the receiver reports lock. 4. BER Test Issues I am unsure: How many bits are required before Eye Viewer can successfully generate a PAM4 heat map. Whether there is a minimum BER sample count required for a valid eye diagram at 51 Gbps. Whether insufficient captured bits can cause "Undefined" eye width/height. 5. TX Pattern Currently transmitting a repeating user-defined pattern, for example: .tx_parallel_data({20{40'b0, 40'h0F0F0F0F0F, 40'b0, 40'h0F0F0F0F0F}}) Questions: Is this pattern suitable for PAM4 eye measurements? Would PRBS13 or PRBS31 be required instead? 6. Signal Integrity Questions: Can a 50 cm SMA cable (Pasterneck PE3CA1035) reliably carry a 51 Gbps PAM4 signal? Is additional equalization or TX pre-emphasis typically required even for short SMA connections? 7. Transceiver Toolkit Configuration I would appreciate guidance on: Recommended Eye Viewer settings. Auto Sweep configuration. Vertical and horizontal ranges. TX FIR tap values. RX CTLE/DFE settings. Required number of bits before starting the eye scan. What are the common reasons for "PAM4 eye could not be detected" despite PLL/CDR lock? What checks should be performed before running Eye Viewer? PRBS as well as USER sequence, both generate complete RED heatmap, why? How many bits should be accumulated before generating an eye diagram at 51 Gbps? Are there recommended TX FIR, CTLE, and DFE settings for a direct SMA-to-SMA connection? Has anyone successfully generated a PAM4 eye using the Stratix 10 E-Tile Native PHY over SMA? If so, could you share the required configuration or debugging steps?IO Standard for GTS Transceiver REFCLK
Hi, We use on the Agilex 5 and 3 Transceivers with AC coupling. Agilex 5 requires CML, HCSL in Agilex 5 datasheet. However, Agilex 5 Premium kit uses LVDS Clock for some Transceiver REFCLK. Is it possible to use LVDS as REFCLK for XCVRs when we use with AC Coupling ?Solved316Views0likes2CommentsGuidance on Enabling USB Mode in F-Tile PMA Direct PHY IP – Quartus Prime 26.1
Hello, I am currently working on USB 3.x data-rate implementation using the F-Tile PMA Direct PHY IP in Quartus Prime for the Agilex 7 device. In earlier versions of the F-Tile PMA Direct PHY IP, the FGT PMA Configuration Rules parameter provided a USB mode. Selecting this mode enabled several USB-specific interfaces and features, including ports such as: fgt_rx_signal_detect_lfps fgt_tx_pma_elecidle Simplified TX Data Interface However, in the newer Quartus Prime versions, including Quartus Prime 26.1, the USB option appears to have been removed from the FGT PMA Configuration Rules parameter. Could you please guide me on how to enable or configure the F-Tile PMA Direct PHY IP in USB mode in Quartus Prime 26.1? In particular, I would like to know whether there is a supported Tcl command, configuration setting, or other method to enable the previously available USB PMA configuration. I would appreciate any guidance or documentation regarding the recommended procedure for enabling the USB-specific PMA configuration and associated ports in the latest IP version. Quartus Prime Version: 26.1 Regards, HMV40Views0likes1Comment
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As AI, cloud, and high-performance computing systems continue to scale, data center operators need more bandwidth within increasingly constrained power and thermal envelopes. Linear Pluggable Optics (LPO) offers an important path forward by simplifying optical modules, reducing power consumption, and lowering latency. LPO places signal-conditioning responsibilities in the host device, allowing the optical module to operate without the DSP used in traditional retimed optics. This architecture can reduce optical module power by 30% to 40%, helping data center designers increase connectivity density while simplifying cooling and thermal management. Altera Brings LPO to the FPGA Market Altera is the first FPGA provider to publicly demonstrate Linear Pluggable Optics interoperability using production FPGA devices. Continued validation with LPO modules from Amphenol and FS further demonstrates the breadth of the emerging ecosystem supported by Altera. Agilex® 7 FPGAs and SoCs bring the power and latency advantages of LPO to programmable platforms used in SmartNICs, data processing units, AI accelerators, and custom infrastructure. The initial public demonstration established that Agilex 7 devices could successfully interoperate with 400G LPO modules. The latest validation advances that milestone by confirming that the implementation meets the performance requirements expected for deployment in demanding data center environments. Validated for Real Deployment Conditions Comprehensive testing confirms that Agilex 7 F-Tile transceivers meet the electrical and link-performance requirements defined by the 100G-DR-LPO specification. The validation demonstrated: Compliance with the required transmit, receive, and link-performance criteria Successful interoperability with LPO modules from Amphenol and FS Successful LPO connectivity across distances from 1 meter to 500 meters Consistent performance across temperature and voltage conditions Measurable performance margin beyond required thresholds Testing covered demanding signal conditions, voltage variation, and temperatures ranging from minus 40 degrees Celsius to 105 degrees Celsius for electrical characterization. Functional link testing included a 1-meter LPO connection, a 100-meter active optical cable, and 500-meter LPO modules from Amphenol and FS. The results demonstrate robust, repeatable operation across multiple module suppliers and link distances, with measurable margin relative to the required performance limits. For customers, this validation provides confidence that Agilex® 7 support for LPO is ready for real-world deployment. Following the industry’s first public FPGA interoperability demonstration, the solution has now been evaluated against LPO performance requirements using modules from multiple suppliers and over link distances up to 500 meters. Together, these results demonstrate a practical foundation for deploying LPO connectivity in next-generation data center systems. More Efficient Connectivity for AI and Cloud Infrastructure The value of LPO grows as data centers deploy more high-speed optical connections. Eliminating the DSP from each optical module can reduce power across thousands of links, simplify optical module design, ease thermal pressure at the front panel, and support lower-latency data movement. Agilex 7 FPGAs add programmability to this more efficient optical architecture. Customers can combine LPO connectivity with packet processing, acceleration, security, telemetry, and evolving protocol support on a single adaptable platform. This flexibility is especially valuable for AI clusters and cloud infrastructure, where workloads, network architectures, and connectivity standards continue to evolve. Validation with multiple module vendors also gives system designers greater flexibility as the LPO supplier ecosystem continues to develop. Ready for the Next Generation of Data Centers The combination of public interoperability and comprehensive validation marks a major step for LPO in the FPGA market. Altera has demonstrated that LPO works with production Agilex 7 devices and validated that the solution meets key LPO requirements with measurable operating margin. This gives customers a proven foundation for evaluating and deploying lower-power, lower-latency optical connectivity in real data center environments. With Agilex® 7 FPGAs, LPO is ready for real-world data center deployment.
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Security requirements are entering a new phase. Systems being designed today may remain deployed for many years, while regulatory expectations, cryptographic standards, and threat models continue to evolve. For designs in industrial, communications, infrastructure, aerospace, defense, and embedded applications, long-term security is becoming a core platform requirement. FPGA-based designs allow designs to meet today’s security needs and evolve with tomorrow’s requirements. Altera is now offering Agilex® 3 and Agilex® 5 devices with PQC-enabled secure boot and configuration support, helping customers prepare for the next generation of security requirements. With the Quartus® Prime Pro Edition 26.1.1 release, customers can begin using a PQC flow that works with Agilex 3 and Agilex 5 based hardware. This milestone extends the security architecture already built into the Agilex platform. Agilex devices use the Secure Device Manager as a hardware root of trust for secure configuration and device management. By combining PQC-capable devices with Quartus software enablement, Altera is helping customers strengthen the FPGA chain of trust as post-quantum requirements move from planning to implementation. The value is immediate and practical. Customers can start designing with supported devices today, while using Quartus 26.1.1 to take advantage of the current software flow. This gives teams a path to address emerging compliance and security expectations without needing a future platform redesign. The same hardware foundation also allows for additional security enhancements over time. Customers designing with PQC-capable Agilex 3 and Agilex 5 devices can benefit from planned software and firmware improvements enabled by the underlying hardware, with no further FPGA hardware upgrade required for those enhancements. Agilex 3 devices bring this capability to power- and cost-optimized FPGA and SoC designs used in embedded, edge, industrial, control, and platform-management applications. Agilex 5 devices extend the same security direction into mid-range FPGA and SoC designs that require higher performance, greater integration, and broader system capability. Post-quantum readiness will continue to advance, and Altera is building that evolution into the Agilex platform roadmap. With PQC-capable Agilex 3 and Agilex 5 devices and Quartus 26.1.1 software enablement, customers have a practical starting point today and a scalable foundation for future security enhancements.
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Altera has started to sample Agilex® 5 D-Series FPGA devices to customers, expanding the Agilex 5 family for customers building higher-performance midrange systems. This adds a second Agilex 5 path alongside Agilex 5 E-Series FPGAs, which are already in full production. Agilex 5 E-Series remains the production-ready choice for power- optimized midrange designs. It is a strong fit when customers need production availability, efficient power, and right-sized capability for applications such as industrial control, edge compute, physical AI, and embedded systems. Agilex 5 D-Series extends the family for designs that need more system performance headroom. It is intended for applications that place heavier demands on signal processing, embedded memory, memory bandwidth, and fabric performance, including broadcast, wireless, video, AI-enabled embedded systems, and higher-performance applications that benefit from memory interfaces such as DDR5 and LPDDR5 capability. One Agilex 5 family, two design paths Agilex 5 E-Series Agilex 5 D-Series In full production Engineering samples available Power-optimized midrange designs Higher-performance midrange designs Right-sized logic and efficient power More DSP, embedded memory, EMIF bandwidth, and higher DDR and LPDDR bandwidth Industrial control, edge compute, physical AI and embedded systems Data Center, Communications, Broadcast, video, and AI-enabled embedded systems Together, Agilex 5 E-Series and D-Series enable customers a clearer way to choose the right midrange FPGA path: production deployment today with E-Series, or higher-performance design evaluation with D-Series. Customers evaluating Agilex 5 D-Series can begin real-silicon design work with Quartus® Prime Pro Edition 26.1.1 support. To order Agilex 5 D-Series engineering samples, please contact your Altera representative. Visit the Agilex 5 D-Series page Visit the Quartus Pro 26.1 Page
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Quartus® Prime Pro Edition 2026.1.1 expands memory options across the Agilex® FPGA portfolio. Memory is increasingly setting the performance, power, and lifecycle limits of modern systems. AI acceleration, packet processing, storage, video, industrial automation, and edge computing all depend on moving large amounts of data efficiently. At the same time, memory availability and vendor transitions can force design teams to revisit component choices long after a platform architecture has been selected. With Quartus® Prime Pro Edition 2026.1.1, Altera expands memory options across the Agilex portfolio. The release brings higher-speed DDR5 and LPDDR5 options to Agilex 7 M-Series FPGAs and SoCs, broadens component choice through documented LPDDR5X device support, and extends LPDDR5 support to Agilex 3 FPGAs and SoCs. Together, these enhancements give designers greater flexibility to balance performance, power, footprint, memory cost, and supply continuity. What is new with Quartus Prime Pro Edition 2026.1.1 Enhancement Customer value DDR5-6400 and LPDDR5-6400 on Agilex 7 M-Series devices Higher Memory Bandwidth Raises the maximum supported memory data rate from 5600 to 6400 MT/s, an increase of more than 14%. DDR5 delivers up to 204.8 GB/s of aggregate bandwidth, while LPDDR5 provides a lower-power, compact-footprint option for bandwidth-intensive designs. LPDDR5X device use in LPDDR5-compatible mode New Sourcing Option Adds sourcing flexibility when LPDDR5 availability, or component strategy favors an LPDDR5X device. LPDDR5 now available for Agilex 3 devices New Memory Support Added Brings a modern low-power memory option to power- and cost-optimized Agilex 3 device configurations. Two 6400 MT/s paths for high-performance systems Agilex 7 M-Series FPGAs and SoCs already combine high logic density, high-speed connectivity, and advanced external memory functionality in a device family available today in full-volume production. Quartus Prime Pro Edition 2026.1.1 strengthens that family’s offering with DDR5-6400 and LPDDR5-6400 in approved configurations. For DDR5, the move from 5600 MT/s to 6400 MT/s increases the maximum data rate by more than 14%. That additional throughput can help AI, networking, storage, and infrastructure designs sustain higher data movement without expanding the FPGA footprint. It can also give architects more flexibility in how they meet a target bandwidth, including the potential to optimize channel count, DIMM selection, board space, and subsystem complexity when the application and supported configuration allow it. LPDDR5-6400 brings a second option to the same top-line interface rate. LPDDR5 is increasingly relevant beyond mobile products because it combines strong bandwidth with lower I/O power and a compact board footprint. Those characteristics are valuable in embedded systems, smart network interface cards, industrial platforms, edge compute, and other designs, where thermal limits and board area matter alongside performance. The result is a high-end FPGA platform that lets designers choose between DDR5 for capacity and server-class memory options, or LPDDR5 for power and footprint efficiency, while reaching up to 6400 MT/s and 204.8 GB/s of aggregate memory bandwidth in selected Agilex 7 M-Series device configurations. LPDDR5X device compatibility adds practical supply-chain flexibility The LPDDR5X enhancement addresses a different customer need. LPDDR5X devices are backward compatible with the LPDDR5 interface, so components can be used with an Agilex LPDDR5 memory interface while operating at the same speeds, voltages, and specifications as the LPDDR5 configuration. Customers can now design with LPDDR5X components in LPDDR5-compatible mode with greater confidence, backed by documented Altera support process. A complete memory offering across the Agilex portfolio Because the Agilex portfolio spans high-performance, mid-range, and power- and cost-optimized devices, customers can carry a consistent FPGA architecture and Quartus development flow across products with very different memory requirements. That continuity helps reduce redesign effort and gives engineering teams more freedom to scale compute, connectivity, and memory together. Teams can preserve DDR4 or LPDDR4 where product requirements, temperature range, or supply conditions still favor those technologies. New designs can move to DDR5 or LPDDR5 for higher bandwidth and better system efficiency. LPDDR5X device compatibility provides an additional sourcing path without requiring customers to redesign a separate memory interface. Explore Agilex FPGA external memory solutions and review the Quartus Prime Pro Edition 2026.1.1 documentation for supported devices, speed grades, memory components, and configurations.
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A customer recently shared with me an interesting way they viewed the updated Altera brand: It’s like a long-time friend who had moved away for a few years but is now back and it’s time to get caught up. One of the things customers might want to 'catch up' on is Altera's efforts with regards to AI. It started when early FPGA products included the first basic digital signal processing (DSP) circuits within the FPGA fabric to improve performance for math-based logic, such as Fast Fourier transforms (FFTs) and finite impulse response (FIR) filters. These early enhancements improved general purpose FPGA-based computing but since 2015, our focus has shifted to improving AI capabilities in both silicon and software tools. DSP capabilities have gotten more sophisticated (fixed point, floating point, small and large bit precisions, etc.) and the quantity of available DSPs within a single device, have increased dramatically. Modern FPGAs are now capable of handling complex equations, especially those needed with the introduction of AI. This historical reminisce catches us up all the way until today’s news, where the latest Altera FPGA family is now broadly available to any customer who wants it; Agilex™ 5 SoC FPGAs, the first FPGAs infused with AI tensor blocks throughout the FPGA fabric. A short list of features that would be attractive to embedded or intelligent edge applications include: For those haven’t heard about Agilex™ 5 devices before today, here is how you can get started: Learn about the family. Review technical details. Download FPGA software. Free for anyone wanting access to Agilex™ 5 E-Series devices: Download Quartus® Prime Pro Test drive hardware (generally available now, lead-times may apply, via franchised distributors): Buy Altera development kits or 3rd party boards and SoMs The initial wave of board/SoM options include 9+ variants, with more coming. Evaluate AI or embedded options: Test out the FPGA AI Suite. Contact Altera sales for limited time introductory pricing. Utilize 3rd party tools (Arm DS, MathWorks) to design for the new, best-in-class Arm dual-A76 + dual-A55 based SoC subsystem or RISC-V based Nios® V soft IP processors. Altera is announcing the Agilex™ 5 family broad availability coincident with Embedded World 2024 because it is one of the key markets this mid-range FPGA family was architected for. Embedded customers clearly told us they perceive a lack of adequate compute in embedded processors, see a big need to fill security gaps, and want to add AI into their next generation systems. Agilex™ 5 devices can address all these concerns. Coming back to our initial topic, AI: GPUs are certainly a popular choice for AI training, but power consumption of GPUs for AI inferencing may be too high for intelligent edge or embedded applications. Instead of adding a separate GPU/AI semiconductor device to an embedded system (resulting in higher cost, more power, more thermal, etc.), why not add the AI function into an FPGA already planned to be used in embedded/edge equipment? For decades, FPGAs have been used in embedded/edge and communication systems for real-time control, IO connectivity, or image/data processing. The estimates on Agilex™ 5 device AI performance look good compared to equivalent class competitors. Because the FPGAs new DSP/tensor is implemented in a fine-grained architecture, it provides the FPGA designer the ability to tune for higher performance or lower power consumption, using the minimum amount of FPGA resources for the desired algorithm. Agilex™ 5 devices – AI key figures of merit: Tensor neural acceleration performance: Up to 26 / 56 TOPS ² Better performance per power efficiency versus embedded market inference GPUs. 1.7x higher frames per second per watt ³ Better raw performance versus other AI targeted FPGAs. 69% higher frames per second ⁴ There are many great reasons to look at this new family of FPGAs. If you are an architect, AI developer, or FPGA designer for embedded systems, don’t wait. As Mark Twain famously said, “The secret of getting ahead is getting started.” Don’t believe the marketing hype, try out your ideas in actual hardware, to see what is ‘possible’. Agilex™ 5 SoC FPGAs are just the latest phase in our DSP/AI journey. Altera, accelerating innovators. Come visit us at Embedded World 2024: Altera booth Hall 5, 5-135 and 5-136. Footnotes: Performance per watt: https://edc.intel.com/content/www/us/en/products/performance/benchmarks/agilex-fpga/ Theoretical peak INT8 calculations for the largest density Agilex 5 E-Series or D-Series devices. 1.7x higher frames per second per watt vs. Nvidia Jetson-class GPUs (AGX Orin) 69% higher frames per second vs. AMD/Xilinx Versal AI devices (VE2302)
1 month ago1like