1 regarding error "Range must be bounded by constant expressions" 2 How can I set a full variable constant? 21 Using parameters to create constant in verilog 0 Verilog error : A reference to a wire or reg is not allowed in a constant expression 0 <signal> is not constant 1 How...
Verilog error : A reference to a wire or reg is not allowed in a constant expression 1 Concurrent assignment to a non-net is not permitted 0 What is "concurrent assignment to a non-net <port_name> is not permitted" Verilog simulation error? 1 SV ERROR: driven via a p...
出现"i is not a constant"(i不是一个常量)的错误是因为作者在索引表达式中使用了非常量的变量。
这个错误的直接原因是 Verilog 不支持 Data_i[i*8-1:i*8-8] 这种语法。如果把向量的位选取写成 v...
这个是用c语言写电路。那个for里面的i需要定义为genvar i;另外从你写的逻辑看,你是希望那个shift_reg不断的变化,但是你这么写的话。系统会认为是一个组合逻辑,所以会立刻计算出结果。你需要写成时续逻辑的电路,用always @(posedge clk)begin ...end ...
2.Error (10158): Verilog HDL Module Declaration error at clkseg.v(1): port "XXXX" is not declared as port 解析:大意了,端口类型还没定义啊! 3.Error (10110): variable "en" has mixed blocking and nonblocking Procedural Assignments -- must be all blocking or all nonblocking assignments ...
//end 上面这段可以全删了。加到下面去:// Memory Write Block // Write Operation : When we = 1, cs = 1 always @ (posedge ph1)begin : MEM_WRITE if(cont == 15)PM_11[0] = 10'd100;else if (cont < 76 && cont >= 16 && we_pm_11)begin PM_11[address] = data_in...
“logic” is an unknown type in Verilog (which is distinct from SystemVerilog) -- means that the word "logic" is not the name of a valid type. Usually an output port needs to be of type reg, and an input port would be of type wire. See Verilog Reference Guide https:...
// port "c" is changed to a reg type reg [7:0] c; endmodule 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. Verilog 2001修订: ANSI-C 样式的端口命名是在 2001 年引入的, 允许在端口列表中指定类型。
type is specified, then the port shall default to a net of net type wire. This default net type can be changed using the ‘default_nettype compiler directive, as in Verilog. --- Quote End --- So because you declared rl_sck as output, it defaults to...