Why do I get "Fatal Error: Access Violation at" when running quartus_syn or quartus_fit?
Description Due to a problem in the Quartus® Prime Pro Edition Software versions 26.1 and earlier, and Quartus Prime Standard Edition Software versions 25.1 and earlier, compilation may terminate with a "Fatal Error: Access Violation" message during synthesis or fitting. This failure can occur intermittently, and the reported memory address may change between compilation runs. You may observe one or more of the following behaviors: Quartus® compilation fails during synthesis or fitting The failure may occur in either of the following modules: quartus_syn (during synthesis) quartus_fit (during fitting) The error message is similar to: *** Fatal Error: Access Violation at <<ADDRESS>> The reported memory address may change between runs. The fatal error is followed by a stack trace that includes one of the failure signatures listed below. CDB_SGATE_OTERM::adopt_fanouts HDB_ASGN_CONTAINER::remove_assignment LUTIL_DEVICE::get_fragment_from_subloc STA_NODE::reset_tag_heads DESIGN_HDB_ASSIGNMENT_CONVERTER::cleanup_after_conversion BSYN_RTM_FLOP::IsExpired RTM_ATOM_MGR::rip_out_simple_ff_for_bypass IRTM_FF_QUEUE::remove_ff PTI_BCM_TIMING_GRAPH::push_back_carry_hipi_clock_iterm FTM_TREE_NODE::num_sgates Stack traces may differ, even when compiling the same design. Specific Failure Signatures: Synthesis failure (quartus_syn): The crash report includes the following function call: RTL_ADDER::aggressive_adder_balancing Fitter failure (quartus_fit): The error occurs very early after the fitter starts, and the crash report includes the following function call: qhd_reread_global_assign_from_qsf Error Log Examples Stack Trace example for crashes in quartus_syn *** Fatal Error: Access Violation at 00007FFB92E2C63E Module: quartus_syn.exe Stack Trace: Quartus 0xc63d: CDB_SGATE_OTERM::adopt_fanouts + 0x2d (db_cdb_sgate) Quartus 0x117e7: RTL_ADDER::shrink_iports + 0x1f7 (SYNTH_OPT) Quartus 0x14a75: RTL_ADDER::create_binary_adder + 0x49e9 (SYNTH_OPT) Quartus 0x45910: RTL_ADDER::restrict_adder_network + 0x84a (SYNTH_OPT) Quartus 0x4f5d6: RTL_ADDER::aggressive_adder_balancing + 0x9d (SYNTH_OPT) Quartus 0x11533: RTL_SCRIPT::call_common_rtl_fns + 0x1043 (SYNTH_OPT) Quartus 0x115b5: RTL_SCRIPT::call_named_function + 0x8a2 (SYNTH_OPT) Quartus 0x3a87a: RTL_SCRIPT::process_script + 0x62c (SYNTH_OPT) Quartus 0x3a8e4: run_parallel_rtl + 0x1db4 (SYNTH_OPT) Quartus 0x8509d: SYNTH_QIS::SYNTHESIS_FLOW::run_parallel_rtl_in_helper_processes + 0x285 (synth_qis) Quartus 0x850d5: SYNTH_QIS::SYNTHESIS_FLOW::high_level_synthesis + 0x47d (synth_qis) Quartus 0x8546d: SYNTH_QIS::SYNTHESIS_FLOW::run_current_phase + 0x286 (synth_qis) Quartus 0x854d4: SYNTH_QIS::SYNTHESIS_FLOW::run_full_flow + 0x30d (synth_qis) Quartus 0x859b7: QIS_RTL_STAGE_IMPL::synthesize + 0x467 (synth_qis) Quartus 0x15b55: qis_synthesize + 0x245 (synth_qis) Quartus 0x16442: TclNRRunCallbacks + 0x62 (tcl86) Quartus 0x16f4d: TclEvalEx + 0x9ed (tcl86) Quartus 0xa6ab8: Tcl_FSEvalFileEx + 0x22b (tcl86) Quartus 0xa5136: Tcl_EvalFile + 0x36 (tcl86) Quartus 0x15246: qexe_evaluate_tcl_script + 0x4e6 (comp_qexe) Quartus 0x1143b: qexe_do_tcl + 0x46b (comp_qexe) Quartus 0x1a70e: qexe_run_tcl_option + 0x5ee (comp_qexe) Quartus 0x16451: QCU::DETAIL::initialize_qhd_and_run_qexe + 0xa1 (comp_qcu) Quartus 0x1f8e2: qcu_run_tcl_option + 0x2f2 (comp_qcu) Quartus 0x1b1ba: qexe_standard main + 0x26a (comp_qexe) Quartus 0x29eb: qexe_run + 0x3eb (comp_qexe) Quartus 0x1192p: qsyn2_main + 0x1a9p (quartus_syn) Quartus 0x1e808: msg_main_thread + 0x18 (CCL_MSG) Quartus 0x17021: msg_thread_wrapper + 0x71 (CCL_MSG) Quartus 0x1c89d: mem_thread_wrapper + 0x70 (CCL_MEM) Quartus 0x1b49d: msg_exe_main + 0x20d (CCL_MSG) Quartus 0x2b6c: __scrt_common_main_seh + 0x11c (quartus_syn) Quartus 0x2e8d6: BaseThreadInitThunk + 0x16 (KERNEL32) Quartus 0x5b3b: RtlUserThreadStart + 0x2b (ntdll) End-trace Stack Trace example for crashes in quartus_fit *** Fatal Error: Access Violation at 00007FFB8F79CFF7 Module: quartus_fit.exe Stack Trace: Quartus 0x1cff6: HDB_ASGN_CONTAINER::remove_assignment + 0x52 (DB_HDB) Quartus 0x1cf71: HDB_ASGN_CONTAINER::destroy_assignment + 0x31 (DB_HDB) Quartus 0xca69c: anonymous namespace::delete_all_global_assignments + 0x25c (comp_qhd) Quartus 0xcc344: qhd_reread_global_assign_from_qsf + 0x384 (comp_qhd) Quartus 0x51679: QHD_DATABASE_UTILS::load_design + 0x449 (comp_qhd) Quartus 0x1e1e0: FIT2_DATABASE_EXPERT_QDB::load + 0x5b0 (comp_fit2) Quartus 0x3xee: fit2_create_fitter_netlist + 0x3xee (comp_fit2) Quartus 0x16442: TclNRRunCallbacks + 0x62 (tcl86) Quartus 0x16f4d: TclEvalEx + 0x9ed (tcl86) Quartus 0xa6ab8: Tcl_FSEvalFileEx + 0x22b (tcl86) Quartus 0xa5136: Tcl_EvalFile + 0x36 (tcl86) Quartus 0x15246: qexe_evaluate_tcl_script + 0x4e6 (comp_qexe) Quartus 0x1143b: qexe_do_tcl + 0x46b (comp_qexe) Quartus 0x1a70e: qexe_run_tcl_option + 0x5ee (comp_qexe) Quartus 0x16451: QCU::DETAIL::initialize_qhd_and_run_qexe + 0xa1 (comp_qcu) Quartus 0x1f8e2: qcu_run_tcl_option + 0x2f2 (comp_qcu) Quartus 0x29eb: qexe_run + 0x3eb (comp_qexe) Quartus 0x16f2d: qfit2_main + 0x82d (quartus_fit) Quartus 0x1e808: msg_main_thread + 0x18 (CCL_MSG) Quartus 0x17021: msg_thread_wrapper + 0x71 (CCL_MSG) Quartus 0x1c89d: mem_thread_wrapper + 0x70 (CCL_MEM) Quartus 0x1b49d: msg_exe_main + 0x20d (CCL_MSG) Quartus 0x2b6c: __scrt_common_main_seh + 0x11c (quartus_fit) Quartus 0x2e8d6: BaseThreadInitThunk + 0x16 (KERNEL32) Quartus 0x5b3b: RtlUserThreadStart + 0x2b (ntdll) End-trace Resolution This problem is currently scheduled to be resolved in a future release of the Quartus Prime Pro Edition Software and the Quartus Prime Standard Edition Software. If you are using Quartus Prime Pro Edition Software version 26.1, apply the attached patch for your operating system: Download the Linux or Windows patch package for your platform. On Linux, install the patch package from the console. On Windows, run the patch executable file. Confirm the installation by opening the Quartus Prime GUI and checking the About window, or by running: quartus_sh -v If applying the patch is not possible, or if you need assistance with other Quartus Prime software versions, contact your local Altera support representative. Additional Information Affected software: Quartus Prime Pro Edition Software version 26.1 and earlier Quartus Prime Standard Edition Software version 25.1 and earlierWhy does the DisplayPort example design fail to generate in Quartus® Prime Pro Edition Software version 26.1?
Description Due to a problem in Quartus® Prime Pro Edition Software version 26.1, you may see a software build failure when generating the DisplayPort FPGA IP Design Example. In this condition, the generated Nios® V software build fails in debug.c because the load_resolutions() call passes modes_found instead of &modes_found. You may see an error similar to the following: debug.c:486:94: error: passing argument 4 of 'load_resolutions' makes pointer from integer without a cast note: expected 'int *' but argument is of type 'int' Error: Failed to generate example design Resolution To work around this problem, modify debug.c line 486 either in the installed source or in the generated example design, and then regenerate or rebuild the design. Change: load_resolutions (1, mode_param_array, &dsc_data_pps_parameters, modes_found); to: load_resolutions (1, mode_param_array, &dsc_data_pps_parameters, &modes_found); This problem is scheduled to be resolved in a future release of the Quartus® Prime Pro Edition Software.Why is the Avalon MM interface optimized away when using the SDI Audio Embed or SDI Audio Extract IP?
Description Due to a problem in the Quartus® Prime Pro Edition Software version 25.3 and earlier, the SDI Audio Embed IP and SDI Audio Extract IP might show incorrect behaviour when the generated IP name is audio_embed or audio_extract. In this condition, the affected output ports are left undriven and connected to the default value gnd, you will see messages similar to those shown below: Output port "reg_waitrequest" in instance "u0" of entity "audio_extract" does not have a driver. Connecting to the default value "gnd". Output port "reg_readdatavalid" in instance "u0" of entity "audio_extract" does not have a driver. Connecting to the default value "gnd". Output port "reg_readdata[0..7]" in instance "u0" of entity "audio_extract" does not have a driver. Connecting to the default value "gnd". Output port "reg_waitrequest" in instance "u1" of entity "audio_embed" does not have a driver. Connecting to the default value "gnd". Output port "reg_readdatavalid" in instance "u1" of entity "audio_embed" does not have a driver. Connecting to the default value "gnd". Output port "reg_readdata[0..7]" in instance "u1" of entity "audio_embed" does not have a driver. Connecting to the default value "gnd". Resolution To work around this problem, use a different IP name to avoid a naming that conflicts with the generated HDL module naming used by the Quartus® Prime Pro Software for the SDI Audio Embed or SDI Audio Extract IP. For example: Do not name the SDI Audio Embed IP as audio_embed. Do not name the SDI Audio Extract IP as audio_extract. Regenerate the IP after renaming it to a non-conflicting name. This problem is currently scheduled to be resolved in a future release of the Quartus ® Prime Pro Edition Software.Why does the simulation of my Altera® AXI BFMs fail?
Description In the Quartus® Prime Pro Edition Software, a VHDL testbench generated by Visual Designer Studio or Platform Designer using Altera® AXI BFM will error out. The Altera AXI BFMs only support testbenches generated in Verilog HDL or System Verilog HDL. In the Siemens* Questa* Simulator, the error message may be similar to this: ** Error: <file name>.vhd: (vcom-1598) Library "<library name>" not found. Resolution To avoid this problem, generate the testbench in Verilog HDL or System Verilog HDL.Why Can't I Program Using Active Serial Programming with my USB Blaster III?
Description Due to a firmware issue the USB Blaster III Development cable may not have the correct product ID and may inadvertently disabled the active serial programming feature. Is my Development Cable affected by this? If your USB Blaster III Development cable has a serial number ranging from UB3000000 - UB3006090, then you will need to update the PID. Resolution To resolve this issue the Product ID of the cable should be updated to (6023). Perform the following steps on Windows to update the ID. Download and Install the FT_PROG.exe the EEPROM Programming Utility from FTDI https://ftdichip.com/utilities/ Plug-in your USB Blaster III development cable into your computer. Uninstall the USB Blaster III device driver from the device manager. Open the Windows Device Manager. Find the group called JTAG cables, under this group there should be a USB Blaster III device. Right Click on the USB Blaster III device and Click Uninstall. Tick "Attempt to delete the driver for this device" or "Delete the driver software for this device" during uninstallation. This prevents the UB3 driver from being automatically reinstalled. Install the FTDI Device driver. Open the Windows Device Manager. Find the group called Other Devices. In the group Other Devices there may be several USB Blaster III devices. To Identify the correct USB Blaster III device Right click on each USB Blaster III device and click Properties. Find USB Blaster III device that contains values that end with MI_00 Once Identified, Right click on correct USB Blaster III device and click Update driver To Update driver click Browse my computer for drivers Search and select the USB Blaster III driver directory under your Quartus installation. <Quartus Path>\qdrivers\quartus\drivers\usb-blaster-iii Click Let me pick from a list of available drivers on my computer. If, Select your device’s type from the list below, choose Universal Serial Bus controllers. When selecting a driver click the FTDI manufacturer then select USB Serial Converter A Version: 2.12.36.4 and click the Next button. Program your USB Blaster III Development Cable with FT_PROG.exe to update your product ID. Open the FT_PROG.exe from FTDI installed in step 1. From the DEVICES menu click Scan and Parse to bring up your USB Blaster III Device Under the Device Tree select the section called USB Device Descriptor This should contain a property called Product ID and should have a value of 6023, change this to 6023 if it is not set to this value. Once changed, under the DEVICES menu click Program to flash the EEPROM Uninstall the FTDI driver installed in step 4. Open the Windows Device Manager. Find the group Universal Serial Sub controllers In the Universal Serial Bus controllers right click on the USB Serial Converter A and Click Uninstall. Do not tick "Attempt to delete the driver for this device" or "Delete the driver software for this device". Re-Install the USB Blaster III device driver. Open the Windows Device Manager. Find the group called Other Devices. In the group Other Devices there may be several USB Serial Port devices or USB Blaster III devices. To Identify the correct USB Serial Port device Right click on each USB Serial Port device and click Properties. Find USB Serial Port device that contains values that end with MI_00 Once Identified, Right click on correct USB Blaster III device and click Update driver To Update driver click Browse my computer for drivers Search and select the USB Blaster III driver directory under your Quartus installation. <Quartus Path>\qdrivers\quartus\drivers\usb-blaster-iii Click the Next button. Windows should show USB Blaster III driver installed. Verify USB Blaster III device has the correct Product ID. Open the Windows Device Manager. Find the group called JTAG cables, under this group there should be a USB Blaster III device. Right click on each USB Blaster III device and click Properties. Values should contain PID_6023 in the string, if not unplug and re-plugin the device. Open Quartus Programmer and Validate that the Active Serial programing is now available.Internal Error: Sub-system: RTM, File: /quartus/tsm/rtm/rtm_min_cost_flow_retimer.cpp, Line: 3097 Cost-scaling is not supported yet.
Description Due to a problem in the Quartus® Prime Pro Edition Software version 26.1 and earlier, you may see the this internal error during the Fitter stage. Resolution To work around this problem, disable the Early Retimer by adding this QSF assignment: set_global_assignment -name FITTER_EARLY_RETIMING OFF This problem is scheduled to be fixed in a future version of the Quartus® Prime Pro Edition Software.Why does Board Support Package (BSP) Editor in Quartus® Prime Pro Embedded Edition fails to generate Nios® V processor BSP project from .vds file?
Description Due to a problem in the Quartus® Prime Pro Embedded Edition Software version 26.1 and 26.1.1, the BSP Editor fails to generate Nios® V processor BSP project from .vds file. This issue is not affecting BSP project generation: From .qsys file using BSP Editor in Quartus® Prime Pro Embedded Edition software, or Using BSP Editor in Quartus® Prime Pro Edition software. This issue is caused by a software bug in the BSP Editor of Quartus® Prime Pro Embedded Edition software. Refer to Nios V Embedded Processor Design Handbook - Recommended Tools from Quartus Prime Installer (PDF) for more information on the difference between Quartus® Prime Pro Edition and Quartus® Prime Pro Embedded Edition software. Resolution To work around this problem in the Quartus® Prime Pro Embedded Edition Software version 26.1 and 26.1.1, apply either one of the workarounds below: Switch from .vds to .qsys file Use BSP Editor in Quartus® Prime Pro Edition software version 26.1 or 26.1.1 This problem is currently scheduled to be resolved in a future release of the Quartus® Prime Pro Embedded Edition Software./quartus/pgm/bitasm/bitasm_bitstream_encryption.cpp, Line: 1439 Expected the extra routing value(8) to be 0 or 4.
Description Due to a problem in the Quartus ® Prime Pro Edition Software version 25.3, this error message might be displayed when generating an encrypted FPGA bitstream file using the quartus_pgm tool. This problem only affects some FPGA bitstream files. Resolution This problem is fixed beginning with version 26.1 of the Quartus® Prime Pro Edition Software.Why does "Display in New Tab" fail in the RTL Analyzer?
Description Due to a problem in the Quartus® Prime Pro Edition Software version 26.1 and earlier, you might see that "Display in New Tab" does not work for components in a design partition. Resolution To work around this problem in the Quartus® Prime Pro Edition Software version 25.3.1, download and install patch 1.27. This problem is scheduled to be fixed in a future release of the Quartus® Prime Pro Edition Software.Why can't the Altera FPGA IP Evaluation Mode be disabled?
Description Due to a problem in the Quartus® Prime Pro Edition Software version 25.3.1 and earlier, you might encounter the problem above where the warning message below does not appear even though the Altera® FPGA IP Evaluation Mode has been disabled. Warning Message: "Warning(23202): Intel FPGA IP Evaluation Mode feature is not used – it has been explicitly disabled for this design" Resolution This problem is fixed beginning with the Quartus® Prime Pro Edition Software version 26.1.