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 ...
Hello, I am trying to make a simple for loop to add up a parameterizable count of numbers, all in the same clock cycle( I am aware that this may
assign 不能放在if里，除非是generate if。如果用always，就不能用assign
晕，你要给count赋值就要把count定义成reg型的，不能定义成integer（整数型），改成reg[31:0]count试试。
如果这样写编译时会报错: Error: Error (10734): Verilog HDL error at seg7_controller.v(82): avs_s1_address is not a constant File: f:/fpga/niosii_mpc/de3_seg/ip/seg7_controller/seg7_controller.v Line: 82 错误提示解释说avs_s1_address不是常值。代码可以修改为: ...
x.data[theword][thebyteH : thebyteL] = $urandom_range(0,255) ; 'this' is not an elaboration-time constant. To correct the error you may convert this const variable to a parameter or a localparam. The geometry of the data record, just a memory, is declared in the def...
It seems this issue may not have been resolved, at least not in a way that applies to SystemVerilog `interface` objects. This is a toy example, but I
conditional expression could not be resolved to a constant The error was with the generation of routers. the expressions in the two for loops could not be evaluated and hence, the conditionals. I tried putting everything in an always block but no luck. here is the code: `timescale 1ns...