Contents
Purpose[edit]
Analyze the operating point of a 2-stage opamp 1) to check MOSFETs are in their saturation region and 2) to determine the compensation resistance
Description[edit]
Run the op simulation in Spectre and read results
Outputs[edit]
Result Name  | 
  Result Type  | 
  Description  | 
  Unit  | 
Rcomp  | 
  design parameter  | 
  compensation resistance  | 
  Ohm  | 
sw_tag  | 
  Rcomp  | 
IOError
[Errno 2] No usable temporary directory found in ['/tmp', '/var/tmp', '/usr/tmp', '/var/www']
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Traceback
A problem occurred in a Python script. Here is the sequence of function calls leading up to the error, in the order they occurred.
/servers/wiki/moin-active/MoinMoin/request/__init__.py in run (self=<MoinMoin.request.request_wsgi.Request object>)
- 1309 self.page.send_page()
 - 1310 else:
 - 1311 handler(self.page.page_name, self)
 - 1312
 - 1313 # every action that didn't use to raise MoinMoinFinish must call this now:
 
- handler = <function do_show>
 - self = <MoinMoin.request.request_wsgi.Request object>
 - self.page = <MoinMoin.Page.Page object>
 - self.page.page_name = u'seobin/doc/op.py'
 
/servers/wiki/moin-active/MoinMoin/action/__init__.py in do_show (pagename=u'seobin/doc/op.py', request=<MoinMoin.request.request_wsgi.Request object>, content_only=0, count_hit=1, cacheable=1, print_mode=0)
- 251 count_hit=count_hit,
 - 252 print_mode=print_mode,
 - 253 content_only=content_only,
 - 254 )
 - 255
 
- content_only = 0
 
/servers/wiki/moin-active/MoinMoin/Page.py in send_page (self=<MoinMoin.Page.Page object>, **keywords={'content_only': 0, 'count_hit': 1, 'print_mode': 0})
- 1199 format_args=pi['formatargs'],
 - 1200 do_cache=do_cache,
 - 1201 start_line=pi['lines'])
 - 1202
 - 1203 # check for pending footnotes
 
- start_line undefined
 - pi = {'acl': <MoinMoin.security.AccessControlList instance>, 'format': u'wiki', 'formatargs': u'', 'language': 'en', 'lines': 4}
 
/servers/wiki/moin-active/MoinMoin/Page.py in send_page_content (self=<MoinMoin.Page.Page object>, request=<MoinMoin.request.request_wsgi.Request object>, body=u'\n<<TableOfContents>>\n\n= Purpose =\n\n## BEGIN_PURP...ng macro displays the page tags\n<<ShowPageTags>>\n', format=u'wiki', format_args=u'', do_cache=1, **kw={'start_line': 4})
- 1285 #if not (do_cache and self.canUseCache(Parser)):
 - 1286 if True:
 - 1287 self.format(parser)
 - 1288 else:
 - 1289 try:
 
- self = <MoinMoin.Page.Page object>
 - self.format = <bound method Page.format of <MoinMoin.Page.Page object>>
 - parser = <MoinMoin.parser.text_moin_wiki.Parser instance>
 
/servers/wiki/moin-active/MoinMoin/Page.py in format (self=<MoinMoin.Page.Page object>, parser=<MoinMoin.parser.text_moin_wiki.Parser instance>)
- 1306 def format(self, parser):
 - 1307 """ Format and write page content without caching """
 - 1308 parser.format(self.formatter)
 - 1309
 - 1310 def execute(self, request, parser, code):
 
- parser = <MoinMoin.parser.text_moin_wiki.Parser instance>
 - parser.format = <bound method Parser.format of <MoinMoin.parser.text_moin_wiki.Parser instance>>
 - self = <MoinMoin.Page.Page object>
 - self.formatter = <MoinMoin.formatter.text_html.Formatter instance>
 
/servers/wiki/moin-active/MoinMoin/parser/text_moin_wiki.py in format (self=<MoinMoin.parser.text_moin_wiki.Parser instance>, formatter=<MoinMoin.formatter.text_html.Formatter instance>, inhibit_p=False)
- 1544
 - 1545 # Scan line, format and write
 - 1546 formatted_line = self.scan(line, inhibit_p=inhibit_p)
 - 1547 self.request.write(formatted_line)
 - 1548
 
- formatted_line = u'<tr> <td><p class="line862"> sw_tag </td>\n <td><p class="line862"> Rcomp </td>\n</tr>\n'
 - self = <MoinMoin.parser.text_moin_wiki.Parser instance>
 - self.scan = <bound method Parser.scan of <MoinMoin.parser.text_moin_wiki.Parser instance>>
 - line = ru|| TTTT || <<latex($\frac{1}{g_{m,\textit{MM6}}}$)>> = 4.4160K || u
 - inhibit_p = False
 
/servers/wiki/moin-active/MoinMoin/parser/text_moin_wiki.py in scan (self=<MoinMoin.parser.text_moin_wiki.Parser instance>, line=ru|| TTTT || <<latex($\frac{1}{g_{m,\textit{MM6}}}$)>> = 4.4160K || u, inhibit_p=False)
- 1358 self.in_table or self.in_list):
 - 1359 result.append(self.formatter.paragraph(1, css_class="line867"))
 - 1360 result.append(self.replace(match, inhibit_p))
 - 1361 end = match.end()
 - 1362 lastpos = end
 
- result = [u'<tr> <td><span class="anchor" id="line-34"></span>', '<p class="line862">', u' TTTT ', '</td>\n <td>', '<p class="line862">', u' ']
 - result.append = <built-in method append of list object>
 - self = <MoinMoin.parser.text_moin_wiki.Parser instance>
 - self.replace = <bound method Parser.replace of <MoinMoin.parser.text_moin_wiki.Parser instance>>
 - match = <_sre.SRE_Match object>
 - inhibit_p = False
 
/servers/wiki/moin-active/MoinMoin/parser/text_moin_wiki.py in replace (self=<MoinMoin.parser.text_moin_wiki.Parser instance>, match=<_sre.SRE_Match object>, inhibit_p=False)
- 1402 # Get replace method and replace hit
 - 1403 replace_func = getattr(self, '_%s_repl' % type)
 - 1404 result.append(replace_func(hit, match.groupdict()))
 - 1405 return ''.join(result)
 - 1406 else:
 
- result = []
 - result.append = <built-in method append of list object>
 - replace_func = <bound method Parser._macro_repl of <MoinMoin.parser.text_moin_wiki.Parser instance>>
 - hit = ru$\frac{1}{g_{m,\textit{MM6}}}$u
 - match = <_sre.SRE_Match object>
 - match.groupdict = <built-in method groupdict of _sre.SRE_Match object>
 
/servers/wiki/moin-active/MoinMoin/parser/text_moin_wiki.py in _macro_repl (self=<MoinMoin.parser.text_moin_wiki.Parser instance>, word=ru$\frac{1}{g_{m,\textit{MM6}}}$u, groups={u'big': None, u'big_off': None, u'big_on': None, u'comment': None, u'dl': None, u'email': None, u'emph': None, u'emph_ib_or_bi': None, u'emph_ibb': None, u'emph_ibi': None, ...})
- 1325 if self.macro is None:
 - 1326 self.macro = macro.Macro(self)
 - 1327 return self.formatter.macro(self.macro, macro_name, macro_args, markup=groups.get('macro'))
 - 1328 _macro_name_repl = _macro_repl
 - 1329 _macro_args_repl = _macro_repl
 
- self = <MoinMoin.parser.text_moin_wiki.Parser instance>
 - self.formatter = <MoinMoin.formatter.text_html.Formatter instance>
 - self.formatter.macro = <bound method Formatter.macro of <MoinMoin.formatter.text_html.Formatter instance>>
 - self.macro = <MoinMoin.macro.Macro instance>
 - macro_name = u'latex'
 - macro_args = ru$\frac{1}{g_{m,\textit{MM6}}}$u
 - markup undefined
 - groups = {u'big': None, u'big_off': None, u'big_on': None, u'comment': None, u'dl': None, u'email': None, u'emph': None, u'emph_ib_or_bi': None, u'emph_ibb': None, u'emph_ibi': None, ...}
 - groups.get = <built-in method get of dict object>
 
/servers/wiki/moin-active/MoinMoin/formatter/__init__.py in macro (self=<MoinMoin.formatter.text_html.Formatter instance>, macro_obj=<MoinMoin.macro.Macro instance>, name=u'latex', args=ru$\frac{1}{g_{m,\textit{MM6}}}$u, markup=ru<<latex($\frac{1}{g_{m,\textit{MM6}}}$)>>u)
- 308 # call the macro
 - 309 try:
 - 310 return macro_obj.execute(name, args)
 - 311 except ImportError, err:
 - 312 errmsg = unicode(err)
 
- macro_obj = <MoinMoin.macro.Macro instance>
 - macro_obj.execute = <bound method Macro.execute of <MoinMoin.macro.Macro instance>>
 - name = u'latex'
 - args = ru$\frac{1}{g_{m,\textit{MM6}}}$u
 
/servers/wiki/moin-active/MoinMoin/macro/__init__.py in execute (self=<MoinMoin.macro.Macro instance>, macro_name=u'latex', args=ru$\frac{1}{g_{m,\textit{MM6}}}$u)
- 126 else:
 - 127 raise ImportError("Cannot load macro %s" % macro_name)
 - 128 return execute(self, args)
 - 129
 - 130 def _m_lang(self, text):
 
- execute = <function execute>
 - self = <MoinMoin.macro.Macro instance>
 - args = ru$\frac{1}{g_{m,\textit{MM6}}}$u
 
/servers/wiki/moin-active/wiki/data/plugin/macro/latex.py in execute (macro=<MoinMoin.macro.Macro instance>, args=ru$\frac{1}{g_{m,\textit{MM6}}}$u)
- 40 return l.get(self.formatter, tex, prologue)
 - 41
 - 42
 - 43 def execute(macro, args):
 - 44 return latex(macro, args).renderInPage()
 
- global latex = <class wikiconfig.p_b18313e08628175e928155311d45cf8dc6ea9f3a.macro.latex.latex>
 - macro = <MoinMoin.macro.Macro instance>
 - args = ru$\frac{1}{g_{m,\textit{MM6}}}$u
 - ).renderInPage undefined
 
/servers/wiki/moin-active/wiki/data/plugin/macro/latex.py in renderInPage (self=<wikiconfig.p_b18313e08628175e928155311d45cf8dc6ea9f3a.macro.latex.latex instance>)
- 38 prologue = ''
 - 39 tex = tmp[0]
 - 40 return l.get(self.formatter, tex, prologue)
 - 41
 - 42
 
- l = <wikiconfig.p_b18313e08628175e928155311d45cf8dc6ea9f3a.parser.latex.Parser instance>
 - l.get = <bound method Parser.get of <wikiconfig.p_b18313...311d45cf8dc6ea9f3a.parser.latex.Parser instance>>
 - self = <wikiconfig.p_b18313e08628175e928155311d45cf8dc6ea9f3a.macro.latex.latex instance>
 - self.formatter = <MoinMoin.formatter.text_html.Formatter instance>
 - tex = ru$\frac{1}{g_{m,\textit{MM6}}}$u
 - prologue = ''
 
/servers/wiki/moin-active/wiki/data/plugin/parser/latex.py in get (self=<wikiconfig.p_b18313e08628175e928155311d45cf8dc6ea9f3a.parser.latex.Parser instance>, formatter=<MoinMoin.formatter.text_html.Formatter instance>, inputtex=ru$\frac{1}{g_{m,\textit{MM6}}}$u, prologue='', para=False)
- 174 dst = "%s/%s%%d.png" % (attachdir, fn)
 - 175 if not os.access(dst % 1, os.R_OK):
 - 176 tmpdir = tempfile.mkdtemp()
 - 177 try:
 - 178 data = open("%s/%s.tex" % (tmpdir, fn), "w")
 
- tmpdir undefined
 - global tempfile = <module 'tempfile' from '/usr/lib/python2.7/tempfile.pyc'>
 - tempfile.mkdtemp = <function mkdtemp>
 
/usr/lib/python2.7/tempfile.py in mkdtemp (suffix='', prefix='tmp', dir=None)
- 315
 - 316 if dir is None:
 - 317 dir = gettempdir()
 - 318
 - 319 names = _get_candidate_names()
 
- dir = None
 - global gettempdir = <function gettempdir>
 
/usr/lib/python2.7/tempfile.py in gettempdir ()
- 259 try:
 - 260 if tempdir is None:
 - 261 tempdir = _get_default_tempdir()
 - 262 finally:
 - 263 _once_lock.release()
 
- global tempdir = None
 - global _get_default_tempdir = <function _get_default_tempdir>
 
/usr/lib/python2.7/tempfile.py in _get_default_tempdir ()
- 206 pass
 - 207 raise IOError, (_errno.ENOENT,
 - 208 ("No usable temporary directory found in %s" % dirlist))
 - 209
 - 210 _name_sequence = None
 
- dirlist = ['/tmp', '/var/tmp', '/usr/tmp', '/var/www']
 
IOError
[Errno 2] No usable temporary directory found in ['/tmp', '/var/tmp', '/usr/tmp', '/var/www']
- args = (2, "No usable temporary directory found in ['/tmp', '/var/tmp', '/usr/tmp', '/var/www']")
 - errno = 2
 - filename = None
 - message = ''
 - strerror = "No usable temporary directory found in ['/tmp', '/var/tmp', '/usr/tmp', '/var/www']"
 
System Details
- Date: Tue, 04 Nov 2025 13:52:24 +0000
 - Platform: Linux mics 3.5.0-23-generic #35~precise1-Ubuntu SMP Fri Jan 25 17:13:26 UTC 2013 x86_64
 - Python: Python 2.7.3 (/usr/bin/python)
 - MoinMoin: Release 1.8.5 (release)
 
