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issue of Synthesis the project with Vidado 2021.2
Hi Adam,
I'm following this project from youtube. after clone and unzip the file, I have the project source. when I open the project with Vivado 2012.2, the opening wizard prompts me, there are some IP need to upgrade, but I ignore them. At this stage everything ok, I can open the diagram of design_1_i, show the diagram the same as you working in youtube tutorial.
but when I do synthesis after a long time waiting, in the message window, it shows 3 errors :
[Synth 8-5535] port <sys_clock> has illegal connections. It is illegal to have a port connected to an input buffer and other components. The following are the port connections :
Input Buffer:
Port I of instance clkin1_ibufg(IBUF) in module <design_1_clk_wiz_0_0_clk_wiz>
Other Components:
Port C of instance \U0/enb_led_reg (FD) in module design_1_led_fsm_0_0
Port C of instance \U0/current_state_reg (FD) in module design_1_led_fsm_0_0
Port C of instance \U0/led_enb_reg[0] (FD) in module design_1_led_fsm_0_0
Port C of instance \U0/led_enb_reg[1] (FD) in module design_1_led_fsm_0_0
Port C of instance \U0/led_enb_reg[2] (FD) in module design_1_led_fsm_0_0
Port C of instance \ack_reg2_reg[0] (FD) in module ila_v6_2_12_ila
Port C of instance trig_in_reg_reg(FD) in module ila_v6_2_12_ila
Port C of instance \sync_reg1_reg[0] (FD) in module ila_v6_2_12_ila
Port C of instance \shifted_data_in_reg[8][0] (FD) in module ila_v6_2_12_ila_core
Port CLK of instance \shifted_data_in_reg[7][0]_srl8 (SRL16E) in module ila_v6_2_12_ila_core
Port C of instance \shifted_data_in_reg[8][1] (FD) in module ila_v6_2_12_ila_core
Port CLK of instance \shifted_data_in_reg[7][1]_srl8 (SRL16E) in module ila_v6_2_12_ila_core
Port C of instance \shifted_data_in_reg[8][2] (FD) in module ila_v6_2_12_ila_core
Port CLK of instance \shifted_data_in_reg[7][2]_srl8 (SRL16E) in module ila_v6_2_12_ila_core
Port C of instance \shifted_data_in_reg[8][3] (FD) in module ila_v6_2_12_ila_core
Port CLK of instance \shifted_data_in_reg[7][3]_srl8 (SRL16E) in module ila_v6_2_12_ila_core
Port C of instance \shifted_data_in_reg[8][4] (FD) in module ila_v6_2_12_ila_core
...
[Synth 8-2918] Failing due to illegal port connections
[Common 17-69] Command failed: Vivado Synthesis failed
I'm new in FPGA and Vivado, could you help me how to fix this issue.
Thanks.
Cai.
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