Forum Discussion
Hi Chandu,
As the initial issue for this thread is not showing anymore, could you create a new forum post regarding the new issue?
Error(21961): Input port OE of a "LVDS" I/O output buffer "*|gpio_0|core|i_loop[0].altera_gpio_bit_i|output_buffer.obuf_0" is not supported.
We prefer a new case for each unique technical problem, as it aids our case analysis and helps us assess our customer support requirements.
Thank you for your understanding.
Regards,
Richard Tan
Hi Richard,
I could get this error working. had to enable pad_out_n signal from GPIO IP core as my I/O standard is LVDS. currently I am getting error for pin assignments.
working on clearing the I/O assignments. will raise a new ticket if issue is not resolved at my end.
Thanks for the support,
Regards,
Chandu sri
Error (20403): Global setting for OUTPUT_IO_TIMING_FAR_END_VMEAS is not supported. Please use this setting with pin assignments.
Error (20403): Global setting for OUTPUT_IO_TIMING_NEAR_END_VMEAS is not supported. Please use this setting with pin assignments.
Error (20403): Global setting for OUTPUT_IO_TIMING_FAR_END_VMEAS is not supported. Please use this setting with pin assignments.
Error (16297): An error has occurred while trying to initialize the plan stage.
Error: Quartus Prime Fitter was unsuccessful. 624 errors, 5 warnings
Error: Peak virtual memory: 3919 megabytes
Error: Processing ended: Fri Mar 13 02:55:55 2026
Error: Elapsed time: 00:01:01
Error: System process ID: 22710
Error (21794): Quartus Prime Full Compilation was unsuccessful. 626 errors, 322 warnings
Error: Flow compile (for project /prj/kratos/users/chandusr/p4v_work/62702_18_1std/kram/krpi_kraq_fpga) was not successful
Error: run_flow flow:run1 finished: 0 Failed
Error (23031): Evaluation of Tcl script /pkg/altera/quartus/25.3pro/quartus/common/tcl/internal/qsh_flowengine.tcl unsuccessful
Error: Quartus Prime Shell was unsuccessful. 633 errors, 322 warnings
Error: Peak virtual memory: 1240 megabytes
Error: Processing ended: Fri Mar 13 02:55:58 2026
Error: Elapsed time: 00:07:19
Error: System process ID: 6053
Error : Failed to compile