vivado常见compile和elaborate错误

vivado常见compile和elaborate错误

complie error类

在错误的位置赋值或assign

module mod();wire w;reg r;assign w = 1;             // 正确,在initial或always之assignr = 0;                    // 错误，在initial或always之外赋值assign r = 0;             // 错误，在initial或always之外赋值initial beginassign w = 0;         // 错误，在initial或always之内assignr = 1;                // 正确，在initial或always之内赋值assign r = 0;         // 正确，在initial或always之内赋值end
endmodule

[USF-XSim 62] ‘compile’ step failed with error(s) while executing ‘D:/vivado/LED_8light/LED_8light.sim/sim_1/behav/compile.bat’ script. Please check that the file has the correct ‘read/write/execute’ permissions and the Tcl console output for any other possible errors or warnings.

使用了未定义的变量

[USF-XSim-62] ‘compile’ step failed with error(s) while executing ‘D:/vivado/LED_8light/LED_8light.sim/sim_1/behav/compile.bat’ script. Please check that the file has the correct ‘read/write/execute’ permissions and the Tcl console output for any other possible errors or warnings.

在always块中声明变量

always @(count or reset) beginreg [7:0] Y;
end

[USF-XSim 62] ‘compile’ step failed with error(s) while executing ‘D:/vivado/LED_8light/LED_8light.sim/sim_1/behav/compile.bat’ script. Please check that the file has the correct ‘read/write/execute’ permissions and the Tcl console output for any other possible errors or warnings.

重复声明变量

reg [7:0] Y;
wire Y;

[USF-XSim 62] ‘compile’ step failed with error(s) while executing ‘D:/vivado/LED_8light/LED_8light.sim/sim_1/behav/compile.bat’ script. Please check that the file has the correct ‘read/write/execute’ permissions and the Tcl console output for any other possible errors or warnings.

语法错误

• 
  
• 参数间没有加逗号
• 参数最后加了分号
• 参数前面没加input或output
• 参数个数不匹配
  

[USF-XSim 62] ‘compile’ step failed with error(s) while executing ‘D:/vivado/LED_8light/LED_8light.sim/sim_1/behav/compile.bat’ script. Please check that the file has the correct ‘read/write/execute’ permissions and the Tcl console output for any other possible errors or warnings.

在错误的地方使用inut/output

module multiplier_sim();input reg[31:0] multiplicand;input reg[31:0] multiplier;input wire[31:0] product;// 错误：input/output不能定义在模块参数列表之外
endmodule

[USF-XSim 62] ‘compile’ step failed with error(s) while executing ‘D:/vivado/LED_8light/LED_8light.sim/sim_1/behav/compile.bat’ script. Please check that the file has the correct ‘read/write/execute’ permissions and the Tcl console output for any other possible errors or warnings.

在input中使用reg

module ALU(input reg y);
endmodule

[USF-XSim-62] ‘compile’ step failed with error(s) while executing ‘D:/vivado/SinglePeriodCPU/SinglePeriodCPU.sim/sim_1/behav/compile.bat’ script. Please check that the file has the correct ‘read/write/execute’ permissions and the Tcl console output for any other possible errors or warnings.

elaborate error类

参数名字不符

module clock_div(input clk,output reg clk_div = 0);// 函数定义
endmodule// 错误调用
clock_div U1(.clock(clock), // 参数名应为clk，而不是clock.clk_div(clk_sys)
);

[USF-XSim-62] ‘elaborate’ step failed with error(s). Please check the Tcl console output or ‘D:/vivado/LED_8light/LED_8light.sim/sim_1/behav/elaborate.log’ file for more information.

匿名的组件调用

// 禁止匿名调用，应该为
// clock_div U1 (
clock_div ( .clk(clock),.clk_div(clk_sys)
);

[USF-XSim-62] ‘elaborate’ step failed with error(s). Please check the Tcl console output or ‘D:/vivado/LED_8light/LED_8light.sim/sim_1/behav/elaborate.log’ file for more information.
[VRFC 10-1047] module instantiation should have an instance name [“D:/vivado/SinglePeriodCPU/SinglePeriodCPU.srcs/sources_1/new/CPU.v”:95]

传入reg变量给reg参数

// 模块
module led_8lights(input clock,input reset,output reg [7:0] Y);// 模块内容
endmodule// 调用
reg [7:0] Y;  // 错误
wire [7:0] Y; // 正确
led_8lights uut(.clock(clock),.reset(reset),.Y(Y)
);

[VRFC 10-529] concurrent assignment to a non-net Y is not permitted [“D:/vivado/LED_8light/LED_8light.srcs/sim_1/new/led_sim.v”:56]