33、SIGNMENT -并行信号代入语句CONDITIONAL SIGNAL ASSIGNMENT - -条件信号代入语句SELECTIVE SIGNAL ASSIGNMENT - -选择信号代入语句CONCURRENT PROCEDURE CALL -并行过程调用语句ASSERT - -并行断言语句GENERIC - -参数传递语句COMPONENT_INSTANT -元件例化语句GENERATE -生成语句并行描述语句语句可以是结构性的,也可以是行为...
• 并行语句主要有进程语句(PROCESS)、块语句(BLOCK )、并行信号赋值语句(concurrent signal assignment, conditional signal assignment, selective signal assignment )、生成语句(GENERATE )、元件例化语句(component instantiations)、断言语句 (assert)。 Concurrent Assignment Statements Concurrent Assignment Statements 1...
并行语句主要有:并行信号赋值语句(ConcurrentSignalAssignments)、条件信号赋值语句(ConditionalSignalAssignments)、选择信号赋值语句(SelectiveSignalAssignments)、进程语句(ProcessStatement)、块语句(BlockStatement)、生成语句(GenerateStatement)、元件例化语句(ComponentInstantiations)和并行过程调用语句(Concurrent...
·PROCESS--进程语句·BLOCK--块语句·CONCURRENTSIGNALASSIGNMENT--并行信号代入语句·CONDITIONALSIGNALASSIGNMENT--条件信号代入语句·SELECTIVESIGNALASSIGNMENT--选择信号代入语句·ASSERT--并行断言语句·COMPONENT_INSTANT--元件例化语句·GENERATE--生成语句.FUNCTIONCALL--子程序调用语句并行描述语句语句可以是结构性的,也...
It looks like this is a bug that came into being when I was adding the conditional generate stuff which DOES put if statements into concurrents. It may be as simple as making sure the if has whitespace boundaries around it. 0 Likes Remi...
VHDL sequential conditional signal assignment statement error Ask Question Asked 8 years, 6 months ago Modified 8 years, 6 months ago Viewed 754 times 0 In my VHDL code I have an error in sig_out_real <= X"00" & sig_in when sig_in(7)='0' else X"ff" & sig_in;. I don'...
gcc -Dproduct_A source.c product_B: source.c gcc -Dproduct_B source.c Have you considered using the vhdl GENERATE statement and wrapping it around the logic you want to be configurable. FORNIN1TO8GENERATEconcurrent statements hereENDname;...
“with/select” conditional assignment66–68113115 WORK library147–49185 X Xilinx: CoreGen tool143–44 debuggers126 embedded multipliers189 flip flops7374 FPGA architecture4–512 generate statements160164 ISim tool109139 RTL Schematic viewer81 XST tool104 (see also UNISIM library) “xnor” function47–...
VHDL-2008 makes thegeneratestatement much more flexible. It is now allowed to useelseandelsif. Also there is acaseversion ofgenerate. This makesgenerateeasier to use. Instead of writing g1: if mode = 0 generate c1 : entity work.comp(rtl1) ...
1.先看一个VHDL代码的例子2.简单代码结构:端口定义和电路逻辑表达3.代码文件命名4.进程(PROCESS)5.VHDL代码中的:Port,Siganl,Variable6.学会简单VHDL设计的三板斧7.VHDL与C代码中的函数的区别?8.操作符&数据类型&赋值语句9.逻辑分支语句:IF;CASE,10.循环语句(LOOP)本章内容 7.VHDL代码中的时序逻辑和组合...