2.组合逻辑一定要用阻塞赋值=,敏感列表没有posedge就用=,有assign就用= 3.时序逻辑和组合逻辑必须分成不同的模块,即一个always中只能有=和<=中的一种 部分报错信息(参考 https://www.bilibili.com/read/cv12437719) [Synth 8-2576] procedural assignment to a non-register Data is not permitted always 块...
Error "procedural assignment to a non-register result is not permitted", You are assigning to result inside an always block, which is not allowed, because result is a wire , not a reg . Show activity on this post. By How to use case for continuous assignment? Solution 1: The signalnext...
代码: reg[data_width-1:0] in31_reg [0:depth-1];//genvar k1; // Error:procedural assignment to a non-register k1 is not permitted, left-hand side should be reg/integer/time/genvarintegerk1;generatealways@(posedgeclkornegedgerst_n)beginif(!rst_n)beginfor(k1=0;k1<depth;k1=k1+1)beg...
verilog hdl procedural assignment error -回复 在Verilog HDL中,出现了一种常见的错误,即过程性赋值错误。过程性赋值是指在描述硬件行为时,使用非阻塞赋值(<=)或阻塞赋值(=)进行信号赋值操作。然而,由于Verilog HDL的过程性建模特性,使用过程性赋值时容易出现一些错误,因此需要注意并避免这些错误的发生。 一、什么...
procedural assignment to a non-register result_a is not permitted. VERI-1100 Done: error code 2 The line in question is the first assignment to one of these registers, in another always block. Code:[Select] result_a <= 0; I guess it does not like setting the register through the wires...
The significant thing to notice in the example is the use of the non-blocking assignment. A basic rule of thumb is to use ⇐ when there is a posedge or negedge statement within the always clause. A variant of the D-flop is one with an asynchronous reset; there is a convention that ...
(5)//non-block-assigment with block-assignmentai = 4'd3 ; //(6)bi = 4'd4 ; //(7)value_blk = ai + bi ; //(8)value_non <= ai + bi ; //(9)//non-block-assigment itselfai2 <= 4'd5 ; //(10)bi2 <= 4'd6 ; //(11)value_non2 <= ai2 + bi2 ; //(12)...
Example 24 - Blocking and nonblocking assignment in the same always block - generally a bad idea! 下面的例25在大多数情况下仿真是正确的,但是新思(Synopsys)工具会报告语法错误因为针对同一个既进行了“阻塞赋值”又进行了“非阻塞赋值”。这样的编码必须进行修改才可以综合。(Error:Cannot mix blocking and ...
发表于 2019-12-07 14:35阅读次数:416评论次数:0 摘要:https://stackoverflow.com/questions/31472546/error-procedural-assignment-to-a-non-register-result-is-not-permitted 后续补全 阅读全文 » HDL的三种描述方式 发表于 2019-12-01 21:28阅读次数:952评论次数:0 摘要:结构化描述 结构化描述方式是...
照惯例,还是先将官方说明贴出来,verilog 2001关于blocking and non-blocking assignment 表述如下: blocking assignment :A blocking procedural assignment statement shall be executed before the execution of the statements that follow it in a sequential block (see 9.8.1). A blocking procedural assignment state...