def trig(self):
name = self.getString(self.name, MDSplus.DevBAD_NAME)
status = MDSplus.Data.execute('AEON_TRIGGER("%s")' % (name, ))
if (status & 1) == 0:
raise MDSplus.DevCAMAC_ERROR('AEON 3248 Triggering %s status %d' %
(
name,
status,
))
def init(self):
import math
if self.debug:
print("A3248 INIT starting")
name = self.getString(self.name, MDSplus.DevBAD_NAME)
gain = self.getInteger(self.gain, MDSplus.DevBAD_GAIN)
if not gain in (1, 2, 4, 8):
raise MDSplus.DevBAD_GAIN("Gain must be one of 1,r or 8")
gain_code = int(math.log(gain, 2))
offset = self.getInteger(self.offset, MDSplus.DevBAD_OFFSET)
offset = max(min(offset, 255), 0)
gain_offset_reg = (gain_code << 8) | offset
pretrig = max(
min(self.getInteger(self.pretrig, MDSplus.DevBAD_PRE_TRIG), 32768),
0)
posttrig_code = (32768 - pretrig) << 7
clock = self.getInteger(self.frequency, MDSplus.DevBAD_CLOCK_FREQ)
if not clock in self.clock_freqs:
raise MDSplus.DevBAD_CLOCK_FREQ("Clock must be in %r" %
(self.clock_freqs, ))
if self.ext_clock.length > 0:
clock_code = 7
else:
clock_code = 0
for f in self.clock_freqs:
if clock == f:
break
clock_code = clock_code + 1
status_reg = clock_code << 8
if pretrig != 0:
status_reg = status_reg | posttrig_code | (1 << 12)
status = MDSplus.Data.execute('AEON_ARM("%s", %d, %d)' % (
name,
gain_offset_reg,
status_reg,
))
if (status & 1) == 0:
raise MDSplus.DevCAMAC_ERROR('AEON 3248 Arming %s status %d' % (
name,
status,
))
