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gac-x04sa
@@ -24,20 +24,18 @@ class Pixel(DeviceBase, Readable):
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self.PIX_THRESH1 = 40
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self.PIX_THRESH2 = 500
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self.PIX_THRESH3 = 8000
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self.PIX_THRESH4 = 100000
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self.PIX_THRESH4 = 100000
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self.PIX_EXP_START_TIME = 0
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self._update_header_length()
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self.show()
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def _update_header_length():
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format = self_get_image_format(self)
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def _update_header_length(self):
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format = self.get_image_format()
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ext = format.split('.')[-1]
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if (ext == "tif"):
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if ext == "tif":
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self.IMAGE_HEADER_LENGTH = 4096
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else if (ext == "edf"):
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elif ext == "edf":
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self.IMAGE_HEADER_LENGTH = 1024
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else:
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self.IMAGE_HEADER_LENGTH = 0
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@@ -53,6 +51,7 @@ class Pixel(DeviceBase, Readable):
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def set_image_format(self, fmt):
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caput(self.prefix + ":FNAM_FMT", fmt)
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self._update_header_length();
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def get_count_id(self):
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return caget (self.prefix + ":FNUM", 'i')
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@@ -67,9 +66,27 @@ class Pixel(DeviceBase, Readable):
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val = max(float(val), 0.000005)
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caput (self.prefix + ":EXPOSE", val * 1000)
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def get_status(self):
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return caget (self.prefix + ":STATUS")
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def get_status(self):
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ret = caget (self.prefix + ":STATUS", 's')
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if ret in ["Ready0", "Ready1"]:
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setState(State.Ready)
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elif ret in ["Snapping", "Writing", "Updating"]:
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setState(State.Busy)
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elif ret in ["Error"]:
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setState(State.Error)
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elif ret in ["Time-out", "Disconnected"]:
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setState(State.Offline)
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elif ret in ["Undefined","Connected",]:
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setState(State.Invalid)
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else:
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setState(State.Invalid)
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return ret
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def is_status_ready(self, status=None):
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if status is None:
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status = self.get_status()
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return status in ["Ready0", "Ready1"]
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def set_path(self, patha, pathb=""):
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caput(self.prefix + ":PATHa", patha)
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caput(self.prefix + ":PATHb", pathb)
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@@ -83,76 +100,62 @@ class Pixel(DeviceBase, Readable):
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return caget (self.prefix + ":TRIG")
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def get_trigger_id(self):
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return caget (self.prefix + ":TRIG", 'i')
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def pixsnap(self):
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pixwait() # Wait until pixel detector is ready
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PIX_EXPOSE = epics_get(PIX_EXPOSE_CHN)
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slef.set_trigger ("Inc+Sn+Wr")
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self.PIX_EXP_START_TIME = time.time()
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def pixwait():
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cnt = 0
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def pixwait(self):
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cnt = 0
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expose = self.get_expose()
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#
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# First wait for "TRIG" to go back to idle. This should
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# ensure that execution of the command has started.
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#
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trig = epics_get (PIX_TRIG_CHN, "long")
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while (trig != 0) {
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cnt = cnt + 1
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if (cnt > 1000) {
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printf("Triger signal still busy, pixwait timed-out!\n")
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exit
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}
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sleep (0.05)
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trig = epics_get (PIX_TRIG_CHN, "long")
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}
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while (get_trigger_id() != 0):
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cnt = cnt + 1
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if (cnt > 1000):
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raise Exception("Trigger signal still busy, pixwait timed-out!\n")
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time.sleep (0.05)
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#
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# Then wait for exposure time to elapse.
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# (PIX_EXPOSE is in milliseconds!)
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#
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while (time() <= PIX_EXP_START_TIME+(PIX_EXPOSE/1000)){
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sleep(0.05)
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}
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while time.time() <= self.PIX_EXP_START_TIME + (expose * 1000) :
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time.sleep(0.05)
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#
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# Then wait for the pixel detector to become ready.
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# Wait time is 1000 x 0.05 sec = 50 sec.
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#
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smsFlag = 0
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stat = epics_get (PIX_STATUS_CHN, "string")
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while ((stat != "Ready0") && (stat != "Ready1")) {
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cnt = cnt + 1
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if (cnt > 1000) {
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printf("%s %s", "pixwait: Pixel status did not return to \"Ready\" within 50", \\
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"seconds.\n")
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beep; beep; beep; beep; beep;
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if (smsFlag == 0) {
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smsSendMessage ("Pixel detector problem in pixwait.")
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}
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smsFlag = 1
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printf ("\n")
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secs=15
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while (secs > 0) {
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printf ("\r\aHit any keyboard character within %3d secs to abort.", secs)
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sleep (1.0)
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_9 = input (-1)
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if (length (_9) > 0) {
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beep; printf ("\nAborted.\n")
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exit
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}
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secs--
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}
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printf ("Trying for another 50 secs\n")
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}
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if ((stat == "Undefined") || \
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(stat == "Time-out") || \
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(stat == "Error")) {
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print "\aInvalid PIX status:", stat
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exit
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}
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sleep (0.05)
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stat = epics_get (PIX_STATUS_CHN, "string")
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}
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if (smsFlag == 1) {
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smsSendMessage ("Pixel detector seems to have recovered from error.")
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}
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sms_flag = 0
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while (True):
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stat = self.get_status()
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if is_status_ready(stat):
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break
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cnt = cnt + 1
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if cnt > 1000 :
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if (smsFlag == 0):
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print("pixwait: Pixel status did not return to 'Ready' within 50 seconds.")
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notify ("Pixel detector problem in pixwait.")
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sms_flag = 1
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if stat in ("Undefined", "Time-out", "Error"):
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raise Exception ("Invalid PIX status:", stat)
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time.sleep (0.05)
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if sms_flag == 1:
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notify ("Pixel detector seems to have recovered from error.")
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def show(self):
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print ("\nThe current pixel detector settings are:\n")
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@@ -175,11 +178,11 @@ class Pixel(DeviceBase, Readable):
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printf(" Threshold values: Thresh1 = %d, Thresh2 = %d, Thresh3 = %d, Thresh4 = %d\n" % (PIX_THRESH1,PIX_THRESH2,PIX_THRESH3,PIX_THRESH4))
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def doUpdate(self):
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pass
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self.get_status()
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def read(self):
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return None
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add_device( Pixel("pixel", "X04SA-ES3-CCD"), True)
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#mythen.polling = 1000
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pixel.polling = 1000
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pixel.update()
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