When running Gen_sch8 5.0 on a large design (especially with XBLOX), the
following error may occur:
GEN_SCH8 Ver. 5.0.0
Copyright (c) 1987-1994 Xilinx Inc. All rights reserved
DDP v8.2_3.43_5 Fri Jun 04 19:07:36 1993
List of files read
Read file chip_tim.xnf
// Error: Sheet/Symbol diagram is closed (from: Capture/ddp/error 01)
ERROR: Bad status 79502001 from ddp__setup_pin_scan.
Sheet/Symbol diagram is closed
GEN_SCH8: ERROR 386: Error found in check_status.
This problem occurs when a power or ground symbol is the last symbol written
on a generated schematic sheet. Gen_sch8 closes the schematic-sheet object
before writing the symbol to it, causing the error.
This problem has been fixed in Gen_sch8 versions 5.1 and later.