Re: [myhdl-list] always_comb exception
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Re: [myhdl-list] always_comb exception
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From: Steve V. <ste...@ea...> - 2013-10-09 18:34:21
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<head><style>body{font-size:10pt;font-family:arial,sans-serif;background-color:#ffffff;color:black;}p{margin:0px;}</style></head><body><font color="#000000"><font size="2"><font face="arial,sans-serif">Hi<font size="2"> <br><font size="2"> Thanks very much<font size="2"> !</font></font><br></font></font></font></font><blockquote style="PADDING-LEFT: 5px; MARGIN-LEFT: 0px; BORDER-LEFT: #0000ff 2px solid">-----Original Message-----
<br>From: Per Karlsson <bas...@gm...>
<br>Sent: Oct 9, 2013 1:16 PM
<br>To: Steve Vejcik <ste...@ea...>, General discussions on MyHDL <myh...@li...>
<br>Subject: Re: [myhdl-list] always_comb exception
<br><br><div dir="ltr">I suspect you are running from the interpreter. <div>That won't work, because MyHDL uses inspection. </div><div>Every piece of MyHDL code has to be written to an actual file somewhere (or at least that's how I understand it).</div>
<div><br></div><div>Cheers</div><div>Per</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Wed, Oct 9, 2013 at 7:48 PM, Steve Vejcik <span dir="ltr"><<a target="_blank" href="mailto:ste...@ea...">ste...@ea...</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Folks - I'm just wetting my feet with myhdl and have run into a problem<br>
running the simple latch example from the wiki. I'm running python 2.7 with<br>
myhdl v0.8. If anyone can offer some insight I'd appreciate it. Here's a<br>
variant of the problem:<br>
<br>
def Mux(z, a, b, sel):<br>
@always_comb<br>
def muxLogic():<br>
if sel == 1:<br>
z.next = a<br>
else:<br>
z.next = b<br>
return muxLogic<br>
>>> z, a, b, sel = [Signal(0) for i in range(4)]<br>
>>> mux_1 = Mux(z,a,b,sel)<br>
<br>
Traceback (most recent call last):<br>
File "<stdin>", line 1, in <module><br>
File "<stdin>", line 2, in Mux<br>
File "/usr/local/lib/python2.7/dist-packages/myhdl/_always_comb.py", line<br>
64, in always_comb<br>
c = _AlwaysComb(func, symdict)<br>
File "/usr/local/lib/python2.7/dist-packages/myhdl/_always_comb.py", line<br>
185, in __init__<br>
s = inspect.getsource(func)<br>
File "/usr/lib/python2.7/inspect.py", line 701, in getsource<br>
lines, lnum = getsourcelines(ZZZobject)<br>
File "/usr/lib/python2.7/inspect.py", line 690, in getsourcelines<br>
lines, lnum = findsource(ZZZobject)<br>
File "/usr/lib/python2.7/inspect.py", line 538, in findsource<br>
raise IOError('could not get source code')<br>
IOError: could not get source code<br>
<br>
Steve<br>
<br>
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</blockquote></div><br></div>
</myh...@li...></ste...@ea...></bas...@gm...></blockquote></body><pre>
Steve</pre>
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