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Questa FPGA Starter Edition: Fatal WLF Error when restarting sim
Simulating some SystemVerilog code (example attached) on Questasim Starter Edition 24.1 or 25.1, when clicking on "restart" on the gui (or typing restart in the console), QuestaSim crashes and gives the following error: ** Error: Fatal WLF Error (2): allocateArchiveNumbers: unknown opcode error: 0 1 I have attached a minimal reproducible example, along with the transcript. On the example, I have found the crash only occurs when passing req_i.b to the "control_decoder" module. Passing req_i.a works fine. Defining type_t with just one member logic b also works. On the Makefile, removing -pedanticerrors also prevents the crash. Thanks23Views0likes3CommentsStratix 10 HPS LED example
Can someone suggest a basic HPS project with PIO for LED control. Need the complete flow of building the project from scratch. How to assign the HPS pins in Quartus. How to add uboot along with fpga pof file in QSPI flash. How to load linux in emmc.92Views0likes13CommentsHow to Simulate the ADC IP from MAX 10
Hi, I want to simulate the ADC IP. I have generated a qsys file and then I have generated the Synthesis and Simulations files (both VHDL) in Quartus Prime Lite I have set the simulator to Questa Intel FPGA and also VHDL, and added my test Bench (also VHDL) then i start the simulation: Tools--> Run Simulation Tool--> RTL Simulation Its compiling, but then I get these errors. it seems that either some settings are wrong in the Simulation files from the ADC IP, or an library include is missing. I have no idea how to fix it. The ADC block works in the synthesis on the Hardware. I also get 2 warnings in the IP files during compilation: ** Warning: (vlog-2083) d:/quartus/tb_adc_to_parallel_vhdl/db/ip/adc_to_parallel/submodules/fiftyfivenm_adcblock_top_wrapper.v(11): Carriage return (0x0D) is not followed by a newline (0x0A). ** Warning: d:/quartus/tb_adc_to_parallel_vhdl/db/ip/adc_to_parallel/submodules/altera_merlin_master_translator.sv(536): (vlog-13528) Extra Parentheses after time system function. I have tried to simalate a none qsys IP block (FIFO) and this worked as expected. Used Software: Quartus Prime Lite 24.1 (because the 25.1 has problems with the PLL IP, but the same error message during Simulation) Questa Intel Starter FPGA Edition 2024.3 Kind Regrards Jonas66Views0likes6CommentsNIOS-V Shell: qsys-generate not found
Hello, we are using makefiles to build our Quartus & QSYS projects. Since we switched from NIOS-II shell to NIOS-V shell, I realized that qsys-generate is no longer accesible. The command "qsys-generate.exe" is either misspelled or was not found. Other quartus commandline tools remain available in NIOS-V Shell: quartus_sh/quartus_sh.exe quartus_fit/quartus_fit.exe The command qsys-generate.exe does exist, it is simple not added to the path in NIOS-V shell. What is the correct way to invoke qsys-generate.exe from within NIOS-V shell? best regards Fabian2Views0likes0CommentsHPS ip configuration in platform designer for uart0 enabling in arria 10 soc
I have software tools Quartus prime pro 26.1, soc eds 20.1 and linaro baremetal tool chain. Now i configure the HPs ip for uart0 enabling but i am not sure wether it is correct or not, can you please conform it, and guide if there any changes required and if configuration is fine tell me the next steps to do. Regards Tean D&D, ESSEN31Views0likes3CommentsUnstable fpga programming using HPS(Agilex3)
Hi I have a problem where the fpga programming sometime fail when using the overlay method described here under "Reconfiguring Core Fabric from Linux": https://altera-fpga.github.io/rel-25.3.1/embedded-designs/agilex-3/c-series/boot-examples/ug-linux-boot-agx3/#reconfiguring-core-fabric-from-u-boot Here I have first two successful attempt then it fail on the third: root@agilex3:~# rmdir /sys/kernel/config/device-tree/overlays/0 ; sleep 1 ; mkdir /sys/kernel/config/device-tree/overlays/0 ; cd /lib/firmware/ ; sleep 1; echo overlay.dtb >/sys/kernel/config/device-tree/overlays/0/path rmdir: '/sys/kernel/config/device-tree/overlays/0': No such file or directory [ 182.671913] fpga_manager fpga0: writing overlay.rbf to Stratix10 SOC FPGA Manager [ 184.865664] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /fpga-region/firmware-name [ 184.876007] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /fpga-region/config-complete-timeout-us root@agilex3:/lib/firmware# rmdir /sys/kernel/config/device-tree/overlays/0 ; sleep 1 ; mkdir /sys/kernel/config/device-tree/overlays/0 ; cd /lib/firmware/ ; sleep 1; echo overlay.dtb >/sys/kernel/config/device-tree/overlays/0/path [ 196.530735] fpga_manager fpga0: writing overlay.rbf to Stratix10 SOC FPGA Manager [ 198.659279] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /fpga-region/firmware-name [ 198.669650] OF: overlay: WARNING: memory leak will occur if overlay removed, property: /fpga-region/config-complete-timeout-us root@agilex3:/lib/firmware# rmdir /sys/kernel/config/device-tree/overlays/0 ; sleep 1 ; mkdir /sys/kernel/config/device-tree/overlays/0 ; cd /lib/firmware/ ; sleep 1; echo overlay.dtb >/sys/kernel/config/device-tree/overlays/0/path [ 214.383163] fpga_manager fpga0: writing overlay.rbf to Stratix10 SOC FPGA Manager [ 217.508857] arm-smmu-v3 16000000.iommu: CMD_SYNC timeout at 0x00004405 [hwprod 0x00004408, hwcons 0x00004405] [ 217.509907] arm-smmu-v3 16000000.iommu: CMD_SYNC timeout at 0x00004407 [hwprod 0x00004408, hwcons 0x00004405] U-Boot SPL 2025.10 (May 18 2026 - 08:34:29 +0000) Reset state: Cold MPU 800000 kHz L4 Main 400000 kHz L4 sys free 100000 kHz L4 MP 200000 kHz L4 SP 100000 kHz SDMMC 200000 kHz init_mem_cal: Initial DDR calibration IO96B_0 succeed DDR: Calibration success is_mailbox_spec_compatible: IOSSM mailbox version: 1 LPDDR4: 1792 MiB ecc_interrupt_status: ECC error number detected on IO96B_0: 0 SDRAM-ECC: Initialized success Does anybody know how to debug and fix this? I'm using Quartus Prime Version 25.3.0 Build 109 Devboard: DK-A3W135BM16AEA: Agilex™ 3 FPGA and SoC C-Series Development Kit8Views0likes2CommentsThe F-Tile HDMI FPGA IP Design and the F-Tile Architecture and PMA and FEC Direct PHY IP with “HDMI” configuration rule are not of production quality.
Description Due to a problem in the Quartus® Prime Pro Edition software version 25.1.1 , the F-Tile HDMI FPGA IP Design and the F-Tile PMA/FEC Direct PHY Intel FPGA IP with “HDMI” configuration rule are not completely compliant with the HDMI receiver specifications. Do not use these IP cores in production designs. However, these IP cores can be used for hardware evaluation and simulation. Resolution The problem has been fixed starting with Quartus® Prime Pro Edition software version 26.1.Why is the eCPRI FPGA IP unable to run on hardware using Stratix® 10 E-Tile with the Nios® V Processor for FPGA and turn on the interworking function (IWF)?
Description Due to a problem in the eCPRI FPGA IP version 3.0.2 in the example design, you may find that there is an error shown at the 10G transaction after changing the dynamic reconfiguration process from 25G to 10G. Resolution There is currently no plan to fix this behavior in a future Quartus® Prime release.Why does Arria® 10 HPS IP generation fail with missing mgc_common_axi.sv in Quartus® Prime Pro 24.1/24.2?
Description Due to a problem in the Quartus® Prime Pro Edition Software versions 24.1 and 24.2, Arria® 10 HPS IP generation may fail with an error similar to: Error: add_fileset_file: no such file .../ip/altera/mentor_vip_ae/axi3/bfm/mgc_common_axi.sv This occurs because AXI3 Mentor Graphics BFM collateral was removed starting in Quartus Prime Pro 24.1, while the Arria 10 HPS generation flow still referenced the removed AXI3 BFM file. Associated Quartus Suite bug: QS-569165. Resolution To resolve this issue, upgrade to Quartus Prime Pro Edition Software version 24.3, regenerate the Platform Designer system/IP output files, and rerun compilation.
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Recent Blogs
2 MIN READ
Altera is extending the availability of its Agilex®, MAX® 10, and Cyclone® V FPGA families through 2045 to support long-lifecycle applications like industrial, aerospace, and medical systems. This helps customers avoid costly redesigns and ensures reliable, long-term supply, reinforcing Altera as a trusted partner for decades-long deployments.
1 day ago2likes
To help address these challenges, Altera® is expanding the Agilex® 9 Direct RF-Series FPGA portfolio with the addition of the AGRW039, a new maximum-compute wideband device designed for demanding aerospace and defense RF applications.
1 day ago0likes
4 MIN READ
Runtime flexibility is only valuable when it is reliable High-speed systems are being asked to do more with the same hardware. A data-center platform may need to operate as a single 400G Ethernet link in one deployment, then support multiple 100G links in another. A front-haul or edge system may need to adapt to different rates, protocol roles, or customer configurations over the life of the product. The promise is simple: deploy one platform, then adapt it as requirements change. But in high-speed design, changing a configuration is not the hardest part. Changing it correctly is. A live transition is not just a speed change. It can require coordinated updates across the the various networking layers, along with clocking, lane mapping, reset behavior, and link recovery. If those layers do not move together and in the right order, the result can be an unstable link, silent data corruption, or a system that hangs indefinitely waiting for CDR lock. That is the real value of Altera Dynamic Reconfiguration: it gives designers confidence that runtime transitions are clean, verified, and repeatable. The Altera difference: clean, verified transitions Altera Dynamic Reconfiguration is built around a profile-driven, silicon-aware flow. Designers define the target operating modes in Quartus Prime, and the system generates validated profiles for each supported state. At runtime, the Dynamic Reconfiguration Controller applies the selected profile through a managed, hardware-driven sequence. It orchestrates the transition across the full protocol stack, ensuring MAC, FEC, PCS, and PMA layers are updated in a coordinated and deterministic order, rather than leaving the designer to manually manage each step. The result: clean, verified transitions - no partial configurations, no unsequenced resets, and no user-managed state machines to debug at 2 a.m. This matters because the transition itself is often where risk appears. A system may appear to support multiple modes on paper, but if each layer must be independently controlled, reset, and validated by user logic, the design team carries the burden of proving that every edge case works under real operating conditions. Altera reduces that risk by turning reconfiguration into a controlled system operation. The selected profile is known, and the transition is repeatable. Silicon-driven confidence The assurance comes from the architecture. Agilex devices use hardened transceiver and protocol IP designed for high-speed operation. Rather than treating reconfiguration as a collection of ad hoc register writes, Altera Dynamic Reconfiguration works with hardened IP and validated profiles to help ensure that runtime switching happens in a controlled, silicon-driven way. That silicon foundation is especially important at 100G and 400G data rates, where small sequencing mistakes can lead to difficult debug cycles. When designers hand-craft transceiver reset state machines, getting the order right, the timing right, and the edge cases right can take weeks. With Altera, those critical sequencing responsibilities are built into the reconfiguration flow. The benefit is not just ease of use. Ease of use is a result. The primary benefit is trust: designers can enable live switching with greater confidence that the system will move from one valid state to another without glitches. A practical advantage for real systems In real deployments, flexibility has business value only if it does not create operational risk. Altera Dynamic Reconfiguration helps a single hardware platform support multiple configurations while avoiding the disruption of a full FPGA reprogramming cycle or duplicate hardware paths for every possible mode. For networking platforms, this can mean supporting different Ethernet configurations on the same physical transceiver resources. For multi-protocol systems, it can mean adapting a port role as requirements evolve. For platform owners, it means more deployment options from the same hardware design. This is where Altera has a practical positioning advantage: customers get runtime flexibility with more of the critical transition behavior handled by the platform. Instead of asking designers to manually manage every reconfiguration step, Altera provides a structured flow designed to produce predictable, verified results. What the demo proves The Agilex 7 400G Dynamic Reconfiguration demo turns this story into proof. In the demo, two Agilex 7 FPGA boards are connected over QSFP-DD, and the system dynamically switches between a 400G Ethernet configuration and multiple 100G Ethernet links using the same setup. The demonstration shows more than a mode change. It shows live traffic validation, link status, packet counters, error status, and FEC behavior during the transition. That is the point: the feature is not theoretical. It is running on silicon, switching in real time, and validating the kind of clean transition designers need before they trust the feature in production systems. Why this matters now As data-center, telecom, edge, and industrial systems become more configurable, customers increasingly need hardware platforms that can support multiple roles over time. The question is no longer whether a system can support more than one mode. The question is whether it can switch modes cleanly, predictably, and with confidence. Altera Dynamic Reconfiguration is designed for that moment. It combines hardened IP performance, profile-driven control, and coordinated sequencing to deliver runtime flexibility without compromising reliability. Dynamic reconfiguration is valuable because it enables flexibility. Altera makes it compelling because it makes that flexibility trustworthy. Watch the Runtime Reconfiguration You Can Trust demo video
20 days ago1like
Agilex® 9 Direct RF-Series FPGAs help system designers address two critical RF system priorities: lower latency and improved SWaP (size, weight, and power). By integrating high-performance RF data converters directly with FPGA fabric, Agilex 9 Direct RF-Series FPGAs can reduce RF-to-baseband latency, simplify the signal chain, lower system power, and free up valuable board space for future capabilities addition. In a draft comparison of discrete JESD-based architectures versus an Agilex 9 integrated Direct RF approach, the integrated solution showed up to 78% lower latency versus a JESD204C discrete solution and up to 86% lower latency versus a JESD204B discrete solution. The comparison also showed approximately 40% lower power consumption and up to 48% board-area reduction. These gains support both primary value propositions: faster system response through lower latency, and better SWaP through fewer external components, lower power, and a smaller, more efficient RF design. Digital radio frequency memory (DRFM), electronic attack, and electronic protection are good examples of applications where latency improvements can make a meaningful difference. In these types of RF systems, lower RF-to-baseband latency helps systems act on complex signals faster, improving responsiveness, timing precision, and mission effectiveness in contested electromagnetic environments. The SWaP benefit is also critical in long-lifecycle aerospace and defense platforms which may remain operational for decades, yet have limited space, weight, power, and cooling capacity for new hardware. As signal environments evolve, these platforms need room to add or upgrade capabilities without major system redesigns. By integrating RF data conversion with FPGA processing, Agilex 9 Direct RF-Series FPGAs can help system designers improve responsiveness, reduce board area, simplify the RF signal chain, and create more headroom for future upgrades. Learn more about Agilex 9 Direct RF-Series FPGAs and the benefits of integrated data converters. Discover how Agilex 9 Direct RF-Series FPGAs enable lower-latency and more power-efficient RF system designs Download the Altera® Direct RF-Series FPGA Wideband Product Brief Source for draft proof points: Agilex 9 Direct RF-Series integrated data converter app note draft, version 0.1, last updated March 31, 2026.
21 days ago0likes
2 MIN READ
New DDR5-6400 support delivers a 14% increase in maximum DDR5 data rate, strengthening Agilex® 7 M-Series device’s memory leadership on a production device family. This effort reflects Altera’s continued investment to improve features on platforms already in volume production. For customers building high-performance FPGA-based systems, memory capability is a core platform requirement, and the level of memory performance increasingly shapes overall system differentiation. That is why this latest Agilex 7 M-Series enhancement matters. With DDR5 support increasing from 5600 MT/s to 6400 MT/s, Agilex 7 M-Series devices support a 14% increase in maximum DDR5 performance on a device family already shipping in production. The significance of this update goes beyond speed alone. It reinforces a broader story about platform value: more usable bandwidth, better system efficiency, and continued innovation on a platform customers can design around today. More bandwidth, better system efficiency DDR5-6400 is not just a higher interface number. It enables more memory bandwidth from the same platform, helping customers move more data through bandwidth-intensive designs. That added bandwidth can also improve bandwidth density at the system level. In practical terms, it can help designers reach target throughput with a more optimized memory subsystem, potentially reducing DIMM or channel requirements in some designs and improving overall platform efficiency. Those advantages become increasingly important in the kinds of applications Agilex 7 M-Series devices are built to address. Across AI, networking, video processing, and data center infrastructure, system performance depends not only on compute capability, but also on how efficiently data can be moved and sustained through the platform. A broader production-ready platform advantage This update also says something important about the platform itself. Agilex 7 M-Series devices already offer production-ready support for advanced external memory technologies, and DDR5-6400 extends that advantage further. As next-generation infrastructure platforms evolve for AI, scale-out networking, and data-intensive acceleration, advanced memory capability is becoming an increasingly important platform differentiator. DDR5 support is now emerging across a broader range of FPGA segments, including mid-range devices such as Agilex 5 and even power- and cost-optimized devices such as Agilex 3 (with LPDDR5 support). Agilex 7 M-Series devicesbrings DDR5-6400 to a high-end FPGA platform tier built for larger, more data-intensive AI, networking, and infrastructure applications. By combining advanced memory performance with substantially greater logic capacity, it delivers differentiation at the platform level. This enhancement is enabled through an upcoming release of Quartus® Prime Pro Edition and is designed to be backward compatible with previously shipped silicon and boards. Customers interested in enabling DDR5-6400 should contact Altera for additional guidance on supported configurations, applicable speed grades, and implementation details. Conclusion The move to DDR5-6400 on Agilex 7 FPGAs and SoCs M-Series delivers a 14% improvement in maximum DDR5 data rate, improving bandwidth density and system-level efficiency while extending the value of a production-ready platform for evolving customer requirements. Watch the DDR5-6400 Demo Performance Video
21 days ago0likes