AR# 11265: 3.1i ChipScope Core Inserter - NGO with unconnected logic is created: "ERROR:MapLib:32 - LUT3 symbol"
AR# 11265
3.1i ChipScope Core Inserter - NGO with unconnected logic is created: "ERROR:MapLib:32 - LUT3 symbol"
説明
Keywords: ChipScope, inserter, MapLib
Urgency: Standard
General Description: When I create an ILA core with a data width of 65 and a data depth of 4096, the following warnings appear in NGDBuild:
WARNING:NgdBuild:440 - FF primitive 'U_ila0/ila/i_dt0/1/storage/ila_ram_i/mux_if/1/fi/1/u_fde' has unconnected output pin WARNING:NgdBuild:440 - FF primitive 'U_ila0/ila/i_dt0/1/storage/ila_ram_i/mux_if/1/fi/2/u_fde' has unconnected output pin WARNING:NgdBuild:440 - FF primitive 'U_ila0/ila/i_dt0/1/storage/ila_ram_i/mux_if/1/fi/3/u_fde' has unconnected output pin WARNING:NgdBuild:440 - FF primitive 'U_ila0/ila/i_dt0/1/storage/ila_ram_i/mux_if/1/fi/4/u_fde' has unconnected output pin WARNING:NgdBuild:440 - FF primitive 'U_ila0/ila/i_dt0/1/storage/ila_ram_i/mux_if/1/fi/5/u_fde' has unconnected output pin WARNING:NgdBuild:440 - FF primitive 'U_ila0/ila/i_dt0/1/storage/ila_ram_i/mux_if/1/fi/6/u_fde' has unconnected output pin WARNING:NgdBuild:440 - FF primitive 'U_ila0/ila/i_dt0/1/storage/ila_ram_i/mux_if/1/fi/7/u_fde' has unconnected output pin WARNING:NgdBuild:452 - logical net 'icon_control0<2>' has no driver WARNING:NgdBuild:452 - logical net 'icon_control0<11>' has no driver WARNING:NgdBuild:454 - logical net 'icon_control0<11>' has no load WARNING:NgdBuild:452 - logical net 'icon_control0<12>' has no driver WARNING:NgdBuild:454 - logical net 'icon_control0<12>' has no load WARNING:NgdBuild:454 - logical net 'icon_control0<14>' has no load
The following error then occurs in MAP:
ERROR:MapLib:32 - LUT3 symbol "U_icon/icon_1/u_icon_core/i_eq1to2/1/u_ila_data_tdo1/i1/1/u_lut" (output signal=U_icon/u_icon_core/tdo1_vec_2) has an equation that uses an input pin connected to a trimmed signal. Make sure that all the pins used in the equation for this LUT have signals that are not trimmed (see trim report for details on which signals were trimmed).
ソリューション
This is fixed in the latest 3.3i ChipScope release.