> What effect does a DEBUG {} block have? I've seen it in a couple of places.
This lets a particular component turn enable UI debugging, versus the global enable method. You may place a single assignment inside the debug section which indicates the debug-level, e.g.:
DEBUG
{
level = 2;
}
The level 0 (zero) means debugging is off, and level 9 is the highest level currently used (with level 9, you will see every command-line of every external program run). Pretty much everything else prints when debugging is set to level 1 as the "level" feature was only recently added.
The global-enable method: add the following assignment to your ~/.sopc_builder/.sopc_builder file:
sopc_ui_debug = 1;
(choose any debug level, 0/1..9) On windows, ~ is your %USERPROFILE% directory (typ.
C:\Documents and Settings\<username>)
>What is the format for the WAVEFORM/ITEM/value field?
This is something we have no documentation for, and it isn't easily described in a reply -- but here is an attempt. The format is basically a comma-delimited series of directives. The directives are:
HH,HL,LH,LL: High-High, High-Low, etc. transitions
CH,CL: Clock transitions (Low-High, High-Low)
TT,TD,DT: Tristrate, Tristrate to/from double-line transitions
VV: Vertical line
TO: Time (called "the little circles" in the code)
C<color>: color-change (CBLACK, CRED, CGREEN, CBLUE, CYELLOW supported)
SC,SS: draw string with/without advancing cursor
OO: dot,dot,dot
X<#>,Y<#>: positional changes
BB: advance cursor forward
There is probably more to it than this, and I suggest making a little UI to try things out if you need to go deeper. For example:
EDIT
{
title = "Waveform Source";
DATA { $$waveform_source = "$"; }
}
WAVEFORM
{
ITEM { value = "{{ $$waveform_source }}";
}
Then when you type in the edit-field the waveform will draw...
>What is the Europa library that you use to generate your Perl module-generation scripts?
>What language is used between the {{ }} delimiters in strings?
These are Altera-created languages/libraries which we'll be documenting in the future (near-future, hopefully). For now your best bet is to look at other components as Kerri pointed out, and ask questions in the forum as needed!
Honored Contributor
