def acquire_cb(self, state):
#print("acq callback")
#print(state)
if (self.action_acq.get_active()):
# This is commented because it seems that comedi_cancel()
# clears stale data in the fd and card?
#data = os.read(self.fd, BUF_SIZE)
#print("LEN DATA: %d" % len(data))
# Start comedi command
ret = c.comedi_command(self.dev, self.cmd)
if (ret != 0):
self.warn_dialog("PCI-6033E cannot collect data! Error: %d" % ret)
print(c.comedi_strerror(c.comedi_errno()))
return(False)
#self.timer_id = GObject.timeout_add(100, self.my_timer)
# Make these timeouts configurable...
self.plotter_id = GObject.timeout_add(250, self.update_plots)
self.plot_id = GObject.timeout_add(500, self.num_data_timer)
self.timer_id = GObject.timeout_add(20, self.pci_6033e_get_data)
#self.plot_timer.start()
self.action_acq.set_label("Halt")
else:
self.action_acq.set_label("Acquire")
if (self.timer_id):
if (c.comedi_cancel(self.dev, SUBDEVICE) < 0):
print("failed to cancel comedi command...")
GObject.source_remove(self.timer_id)
if (self.plot_id):
GObject.source_remove(self.plot_id)
if (self.plotter_id):
GObject.source_remove(self.plotter_id)
#self.plot_timer.stop()
# Empty stale data
self.data_buf = ""
def comedi_errcheck():
errc = c.comedi_errno()
raise Exception("NICOMEDI: %s" % c.comedi_strerror(errc))
def _raise_comedi_error(fname, rc):
errno = _comedi.comedi_errno()
raise ComediError("%s() returned %r" % (fname, rc), errno,
_comedi.comedi_strerror(errno))
def _raise_comedi_error(fname, rc):
errno = _comedi.comedi_errno()
raise ComediError("%s() returned %r" % (fname, rc),
errno, _comedi.comedi_strerror(errno))
def comedi_errcheck():
errc = c.comedi_errno()
raise Exception("NICOMEDI: %s" % c.comedi_strerror(errc))
