wren | Wren Programming Language | Script Programming library

Yes, you can do this with either $display or $monitor.

Typically, $monitor would be called inside an initial block since it should only be called at one time in your simulation. It automatically displays values whenever one of its argument signals changes value.

Unlike $monitor, $display only displays values when it is called; it must be called whenever you want to display a signal value. It can be called in an initial block, but it is often called in an always block.

Regarding when to use either one, it is up to you to decide what you require.

If you are not planning to synthesize your modules, you could place monitor/display inside your design module directly. However, if you plan to synthesize, it might be better to place them in the testbench.

You can use hierarchical scoping to view internal signals from the testbench module. For example, assume you named the instance of the Register_File_RF module in the testbench as dut:

You never execute the line with the shift because the if condition is always true. The following line is always true because you mistakenly omitted Opcode == for the last 2 comparisons:

So, after bashing my head against my table and my coworker stealing my oscilloscope, it worked, so i found out that the oscilloscope channels pulled my signal down bc i had the inputs in 50 Ohm mode and not 1MOhm. Switching that fixed it.

Your backend server is giving a 200 OK response with error JSON.

Now an Observable treats a 200 response as success.

Many thanks to @FaneDuru for the answer s/he have provided in the comments.

The problem was caused by DataBodyRange(1, i).Value, as Excel understands that it's iterating by the table's rows.

The correct answer must be DataBodyRange(i, 1).Value, so that Excel can iterate by row's indices.

The code corrected:

This is a literal result of the act of elaboration. When the line

if_memory if_memory();

is elaborated, it doesn't take into context what the logic nets are connected to at that level of hierarchy, or another.

If the declaration contained a port, such as:

if_memory if_memory(.clk(clk));

This warning would go away, because there would be a default net connected. Apparently the quartus assembler builds the modports at a later runtime.

While this is 'just how quartus works', this isn't a useful warning, and really doesn't contain useful information in this context. The warning is preceded by the elaboration step. In system verilog, it's common to have interfaces that just connect nets, in this case, there would be no way to not get this warning, even if all nets were connected in lower level modules even if modports attached to all nets.

you want to hide/show capital, do you have to just play with the class capital and span:

The traceback message explains it plainly, dict types do not have sort attribute method:

This check is supposed to disallow impossible situations when referring to a specific BlackBox. Namely, the following must be true:

• If the BlackBox has no parameters, then all ports must have the same name, same width, and be in the same order
• If the BlackBox has parameters, then all ports must have the same name and be in the same order (but may have different widths)

It sounds like either your example is producing BlackBoxes that violate the latter condition (since your BlackBoxes have parameters) or this has exposed a bug in that FIRRTL compiler check.

The actual Verilog module is never checked and can't cause any problems here.

Could you update your question to provide the FIRRTL IR that is producing these errors? Specifically, what does the FIRRTL IR for XilinxSimpleDualPortNoChangeBRAM and XilinxSimpleDualPortNoChangeBRAM_1 look like? This should be in a file like "Foo.fir". Alternatively, you can do something like: