Hello embdev-Community.

I'm from Germany, but I'll do my very best in writing clean English ;)

I am developing with VHDL since a few weeks, I love this method to
design hardware. All this time along I used the Xilinx ISE to create
testbenches for evaluation.

But today I decided to write my own bench on a linuxbox. This was a
little difficult, but in the end it worked.

I coded a for loop which iterates an array of pattern and stimulates my
entity with the desired values. After that it compares the output saved
in the array with the output of the entity.

If this doesn't match, an error-string is shown.

But I want to tweak this a little bit. It is not really helpful to see,
that an error occures. It would be great to see, on which index of the
pattern-array this thing happened.

But I really don't know how to convert the iterator i:

for i in pattern'range loop 

to a string in my error string.

My actual output is:

assert Q_is = patterns(i).Q
report "Q doesn't match!" severity error;

But I want something like: "Q doesn't match @ i", where i is replaced by
it's value.

Since I only coded CPLD-Hardware for synthesizing, I'm absolutely
unfamiliar with strings a.s.o. in VHDL.

Hope, someone could help.

Greets and best wishes from Germany,
Sebastian

Herzlichsten Dank, genau das hat mir gefehlt!

Gibt es eine Übersicht solcher Debug und Testing Anweisungen?

Grüße,
Sebastian

Sorry, I wrote back in the german board, didn't mind that my post will
appear also in the english.

I asked about a kind of list or summary with the most used debugging-
and testing-codes in VHDL.

Greets, Sebastian