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From: <by...@nc...> - 2018-10-29 18:39:29
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Signal names are different due to LXT2 limitations. Please redo your .gtkw file and it should work. LXT2 has not been in active development for at least nine years. I am considering dropping LXT/LXT2/VZT support from gtkwave in order to force their removal from other tools. -Tony -----------------------------------------From: "Ron Burkey" To: Gtk...@li... Cc: Sent: Monday October 29 2018 12:07:38PM Subject: [Gtkwave-users] Problem with viewing FST generated by Icarus Verilog in GTKWAVE I've partially switched over from using LXT2 files to using FST files in running simulations in Icarus, but can't do so entirely because of a little problem I'm having viewing the FST dumpfiles in GTKWAVE. The problem can be reproduced with the files at this Google Drive link: [1]https://drive.google.com/open?id=1sif-JU89qnlCuG_Rn3dWDskXoo9Rs6_j [2]. To see the problem, you have to view agc.fst in GTKWAVE, using test.gtkw, making sure that instruction_trans_decoder.py is in the same directory. What you should see is what's in screenshot.png (which I got by viewing agc.lxt2), but what I actually get is an error message from GTKWAVE reading: ERROR: Group End encountered with no matching start. Ignoring. What's going on in this example is that a Python script (instruction_trans_decoder.py) has been provided that decodes the signals in the dumpfile, and displays them in GTKWAVE as CPU opcodes. This works when I view the LXT2 file, but fails when I view the FST file. The signals in the dumpfile are fine, as far as I know, but the decoded instructions simply won't show up when viewing the FST file. This also fails if I use fst2vcd and vcd2lxt2 to create an LXT2 file from the FST file, and then try to view the newly-created LXT2 file. Is this a problem with the format of my gtkw file? With GTKWAVE? With Icarus? -- Ron P.S., I'm using the latest Icarus release candidate and GTKWAVE 3.3.95. Links: ------ [1] https://drive.google.com/open?id=1sif-JU89qnlCuG_Rn3dWDskXoo9Rs6_j [2] https://drive.google.com/open?id=1sif-JU89qnlCuG_Rn3dWDskXoo9Rs6_j |
