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mount_tnc/astromecca/mountastro/mountremote.py 33.5 KB
40aba612   aklotz   Ajoute les nouvea...
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# -*- coding: utf-8 -*-
import sys, os
import time
import traceback
import socket
from threading import Thread, Event
#from threading import RLock
import select, queue

try:
    from .mountastro import Mountastro
except:
    from mountastro import Mountastro

try:
    from .mountchannel import Mountchannel
except:
    from mountchannel import Mountchannel

try:
    from .mountaxis import Mountaxis
except:
    from mountaxis import Mountaxis

try:
    from .mounttools import Mounttools
except:
    from mounttools import Mounttools
    
path = os.path.join(os.path.dirname(__file__), '..')
if path not in sys.path:
    sys.path.append(path)    
# --- celme imports
modulename = 'celme'
if modulename in dir():
    del celme
if modulename not in dir():
    import celme

# #####################################################################
# #####################################################################
# #####################################################################
# Class MountremoteServer
# #####################################################################
# #####################################################################
# This class provides a server 
# for mount communication and a client software
# #####################################################################

#lock = RLock()

class MountremoteServer(Thread):
    """
    For SERIAL or TCP connections
    """
    
    def __init__(self, *args, **kwargs):
        Thread.__init__(self)
        self._themount = args[0]
        #print("*args={}".format(args))
        #print("**kwargs={}".format(kwargs))
        # --- Dico of optional parameters for all axis_types
        param_optionals = {}
        param_optionals["PROTOCOL"] = (str, "LX200")
        param_optionals["VERBOSE_LEVEL"] = (int, 1)
        # --- Dico of axis_types and their parameters
        remote_transport_protocols = {}
        remote_transport_protocols["SERIAL"] = {"MANDATORY" : {"PORT":[str,"//./COM1"]}, "OPTIONAL" : {"BAUD":[int,9600]} }
        remote_transport_protocols["TCP"]    = {"MANDATORY" : {"PORT":[int,1111]}, "OPTIONAL" : {} }
        # --- Decode args and kwargs parameters
        mounttools = Mounttools()
        params = mounttools.decode_args_kwargs(1,remote_transport_protocols, param_optionals, *args, **kwargs)
        self._remote_transport_protocol = params["SELECTED_ARG"]
        self._remote_command_protocol = params["PROTOCOL"]
        self._verbose_level = params["VERBOSE_LEVEL"]
        if self._remote_transport_protocol=="SERIAL":
            self._port = params["PORT"]
            self._baud_rate = params["BAUD"]
            #msg = "port={} baud={}".format(self._port,self._baud_rate)
            #self.print(msg)
        elif self._remote_transport_protocol=="TCP":
            self._port = params["PORT"]
            #msg = "port={}".format(self._port)
            #self.print(msg)
        # --- Propagate the protocol to the mount for the remote_command_processing
        self._themount.remote_command_protocol(self._remote_command_protocol)
        # ---
        self._stopevent = Event( )        

    def run(self):
        """Code à exécuter pendant l'exécution du Thread"""
        msg = "The thread MountremoteServer is started"
        self.print(msg)
        # ---
        if self._remote_command_protocol=="LX200":
            delay_init_chan=0.1
            end_of_command_to_send="#".encode('utf8')
            end_of_command_to_receive="#".encode('utf8')
            delay_put_read=0.06
        elif self._remote_command_protocol=="MCS":
            delay_init_chan=0.1
            end_of_command_to_send="#".encode('utf8')
            end_of_command_to_receive="#".encode('utf8')
            delay_put_read=0.06
        if self._remote_command_protocol=="ASCOM":
            delay_init_chan=0.1
            end_of_command_to_send="#".encode('utf8')
            end_of_command_to_receive="#".encode('utf8')
            delay_put_read=0.06
        # ---
        if self._remote_transport_protocol=="SERIAL":
            self._channel = None
            while not self._stopevent.isSet():
                # --- Open the serial server if needed
                if self._channel==None: 
                    try:
                        params = dict(port=self._port, baud_rate=self._baud_rate)
                        params["delay_init_chan"]=delay_init_chan
                        params["end_of_command_to_send"]=end_of_command_to_send
                        params["end_of_command_to_receive"]=end_of_command_to_receive
                        params["delay_put_read"]=delay_put_read
                        #print("MountremoteServer params={}".format(params))
                        self._channel = Mountchannel("SERIAL", **params)
                        self._channel.verbose_chan = False
                    except:
                        msg = "{} instance problem. {}".format(self._remote_transport_protocol,self._channel.get_last_error_msg())
                        self.print(msg)
                        time.sleep(0.1)
                        break
                    if self._channel.check_chan()[0] != Mountchannel.NO_ERROR:
                        msg = "{} opening problem. {}".format(self._remote_transport_protocol,self._channel.get_last_error_msg())
                        self.print(msg)
                        time.sleep(0.1)
                        break
                    msg = "{} server listening port {} for protocol {}".format(self._remote_transport_protocol, self._port, self._remote_command_protocol)
                    self.print(msg)
                # --- read the commands from the client
                valid_commands = False
                try:
                    err, commands = self._channel.read_chan()
                    #print("=== Recu commands={} type={}".format(commands,type(commands)))
                    if isinstance(commands, list) == True:
                        # --- used by LX200
                        while '' in commands:
                            commands.remove('')
                        if len(commands)>0:
                            #print("=== Recu List commands={}".format(commands))
                            valid_commands = True
                    elif isinstance(commands, str) == True:
                        # --- used by ASTROMECCA
                        if len(commands)>0:
                            cmd = []
                            cmd.append(commands)
                            commands = cmd
                            #print("=== Recu Str commands={}".format(commands))
                            valid_commands = True
                except:
                    # --- connexion problem
                    msg = "{} server problem, close. {}".format(self._remote_transport_protocol,sys.exc_info()[0])
                    self.print(msg)
                    traceback.print_exc(file=sys.stdout)
                    try:
                        self._channel.close_chan()
                    except:
                        pass
                    #self._channel = None
                    time.sleep(1)
                # --- process the received message
                try:
                    if err==self._channel.NO_ERROR and valid_commands==True:
                        for command in commands:
                            msg = self._themount.remote_command_processing(command)
                            #message = command + " - SERIAL -> " + msg
                            #self.print(message)
                            # --- send the answer to client
                            self._channel.put_chan(msg)
                except:
                    traceback.print_exc(file=sys.stdout)
                time.sleep(0.01)
            # ---
            if self._channel != None:
                self._channel.close_chan()
        elif self._remote_transport_protocol=="TCP":        
            self._channel = None
            # --- Open the serial server if needed
            try:
                self._channel = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
                self._channel.setblocking(0)
                self._channel.bind((socket.gethostname(), self._port))
                self._channel.listen(5)
                inputs = [self._channel]
                outputs = []
                message_queues = {}
            except:
                # --- connexion problem
                try:
                    self._channel.close_chan()
                except:
                    pass
                self._channel = None 
                msg = "Unexpected error: {}".format(sys.exc_info())
                self.print(msg)
                return
            msg = "{} server listening port {} for protocol {}".format(self._remote_transport_protocol, self._port, self._remote_command_protocol)
            self.print(msg)
            msg = "{}".format(self._channel)
            self.print(msg)
            # --- read the commands from the client
            try:
                while inputs:
                    if self._stopevent.isSet():
                        break
                    time_out = 0.5
                    readable, writable, exceptional = select.select(inputs, outputs, inputs, time_out)
                    #readable, writable, exceptional = select.select(inputs, outputs, inputs)
                    # ---
                    for s in readable:
                        if s is self._channel:
                            connection, client_address = s.accept()
                            connection.setblocking(0)
                            inputs.append(connection)
                            message_queues[connection] = queue.Queue()
                        else:
                            data = s.recv(1024)
                            if data:
                                #print("data={}".format(data))
                                commands = str(data.decode("utf-8"))
                                #print("commands={}".format(commands))
                                if end_of_command_to_receive!="":
                                    commands = commands.split(end_of_command_to_receive.decode("utf-8"))
                                #print("commands={}".format(commands))
                                #print("=== Recu commands={} type={}".format(commands,type(commands)))
                                if isinstance(commands, list) == True:
                                    # --- used by LX200
                                    while '' in commands:
                                        commands.remove('')
                                    if len(commands)>0:
                                        #print("=== Recu List commands={}".format(commands))
                                        valid_commands = True
                                elif isinstance(commands, str) == True:
                                    # --- used by ASTROMECCA
                                    if len(commands)>0:
                                        cmd = []
                                        cmd.append(commands)
                                        commands = cmd
                                        #print("=== Recu Str commands={}".format(commands))
                                        valid_commands = True
                                # --- process the received message
                                try:
                                    if valid_commands==True:
                                        for command in commands:
                                            msg = self._themount.remote_command_processing(command)
                                            #message = command + " - TCP -> " + msg
                                            #self.print(message)
                                            # --- send the answer to client
                                            message_queues[s].put(msg.encode("utf-8"))
                                            if s not in outputs:
                                                outputs.append(s)
                                except:
                                    traceback.print_exc(file=sys.stdout)
                            else:
                                #print("step 2")
                                if s in outputs:
                                    outputs.remove(s)
                                inputs.remove(s)
                                s.close()
                                del message_queues[s]
                    # ---
                    for s in writable:
                        try:
                            #print("step 3 s.fileno()={}".format(s.fileno()))
                            if s.fileno()==-1:
                                continue
                            next_msg = message_queues[s].get_nowait()
                        except queue.Empty:
                            outputs.remove(s)
                        else:
                            s.send(next_msg)
                
                    for s in exceptional:
                        inputs.remove(s)
                        if s in outputs:
                            outputs.remove(s)
                        s.close()
                        del message_queues[s]
                    # ---
                    #time.sleep(0.7)
            except:
                traceback.print_exc(file=sys.stdout)
            # ---
            #print("STEP 200 self._channel={}".format(self._channel))
            if self._channel != None:
                self._channel.close()
        msg = "The thread MountremoteServer termined properly"
        self.print(msg)

    def print(self, *args, **kwargs):
        """
        print method
        """
        if self._verbose_level>0:
            print (*args, **kwargs,end='\n')

    def stop(self):
        self._stopevent.set( )
        
    def __del__(self):
        if self._channel != None:
            if self._remote_transport_protocol=="SERIAL":
                self._channel.close_chan()
            elif self._remote_transport_protocol=="TCP":        
                self._channel.close()            
        self.stop()

# #####################################################################
# #####################################################################
# #####################################################################
# Class MountremoteClient
# #####################################################################
# #####################################################################
# This class provides a client
# for mount communication and a server software
# #####################################################################

class MountremoteClient():
    """
    For SERIAL or TCP connections
    """
    
    def __init__(self, *args, **kwargs):
        """
        Initialisation du protocole Remote.
        
        Blabla.
        
        Example:
            
        >>> MountremoteClient("SERIAL",port="COM1")
        
        """
        Thread.__init__(self)
        #self._themount = args[0]
        #print("*args={}".format(args))
        #print("**kwargs={}".format(kwargs))
        # --- Dico of optional parameters for all axis_types
        param_optionals = {}
        param_optionals["PROTOCOL"] = (str, "LX200")
        param_optionals["VERBOSE_LEVEL"] = (int, 1)
        param_optionals["WAIT_MS"] = (int, 200)
        # --- Dico of axis_types and their parameters
        remote_transport_protocols = {}
        remote_transport_protocols["SERIAL"] = {"MANDATORY" : {"PORT":[str,"//./COM1"]}, "OPTIONAL" : {"BAUD":[int,9600]} }
        #remote_transport_protocols["TCP"]    = {"MANDATORY" : {"PORT":[int,1111]}, "OPTIONAL" : {} }
        remote_transport_protocols["TCP"]    = {"MANDATORY" : {"HOSTNAME":[str,'localhost'], "PORT":[int,1111]}, "OPTIONAL" : {} }
        # --- Decode args and kwargs parameters
        mounttools = Mounttools()
        params = mounttools.decode_args_kwargs(0,remote_transport_protocols, param_optionals, *args, **kwargs)
        self._remote_transport_protocol = params["SELECTED_ARG"]
        self._remote_command_protocol = params["PROTOCOL"]
        self._verbose_level = params["VERBOSE_LEVEL"]
        self._wait_sec = params["WAIT_MS"]/1000.0
        if self._remote_transport_protocol=="SERIAL":
            self._port = params["PORT"]
            self._baud_rate = params["BAUD"]
            #msg = "port={} baud={}".format(self._port,self._baud_rate)
            #self.print(msg)
        elif self._remote_transport_protocol=="TCP":
            self._hostname = params["HOSTNAME"]
            self._port = params["PORT"]
            #msg = "port={}".format(self._port)
            #self.print(msg)
        # ---
        self._channel = None

    def close_chan(self):
        if self._channel != None:
            self._channel.close_chan()
            msg = "The MountremoteClient is closed"
            self.print(msg)

    def open_chan(self):
        """Open a channel"""
        if self._channel != None:
            return
        params = dict()
        if self._remote_transport_protocol=="SERIAL":
            params = dict(port=self._port, baud_rate=self._baud_rate)
        elif self._remote_transport_protocol=="TCP":
            params = dict(port=self._port, hostname=self._hostname)
        if self._remote_command_protocol=="LX200":
            params["delay_init_chan"]=0.1
            params["end_of_command_to_send"]="#".encode('utf8')
            params["end_of_command_to_receive"]="#".encode('utf8')
            params["delay_put_read"]=0.06
        elif self._remote_command_protocol=="ASTROMECCA":
            params["delay_init_chan"]=0.1
            params["end_of_command_to_send"]="".encode('utf8')
            params["end_of_command_to_receive"]="".encode('utf8')
            params["delay_put_read"]=0.06
        #print("MountremoteClient params={}".format(params))
        try:
            self._channel = Mountchannel(self._remote_transport_protocol, **params)
            self._channel.verbose_chan = True
            #print("#"*30)
        except:
            # --- connexion problem
            try:
                self._channel.close()
            except:
                pass
            self._channel = None 
            msg = "{} opening problem. {}".format(self._remote_transport_protocol,sys.exc_info())
            self.print(msg)
            return
        msg = "{} client can communicate on port {} for protocol {}".format(self._remote_transport_protocol, self._port, self._remote_command_protocol)
        self.print(msg)
        msg = "The MountremoteClient is opened"
        self.print(msg)
            
    def put_chan(self, msg):
        # -- open a channel if not ever done
        self.open_chan()
        # -- do not work if the channel does not exists
        if self._channel == None:
            return
        # -- send the message according the transport protocol
        try:
            # --- send the message to the client
            # .encode("utf-8")
            #self.print("=== envoi message={}".format(msg))
            self._channel.put_chan(msg)
        except:
            # --- connection problem
            msg = "{} client problem. {}".format(self._remote_transport_protocol,sys.exc_info())
            self.print(msg)
            traceback.print_exc(file=sys.stdout)
            
    def read_chan(self):
        # -- open a channel if not ever done
        self.open_chan()
        # -- do not work if the channel does not exists
        if self._channel == None:
            return
        # -- read the message according the transport protocol
        valid_responses = False
        try:
            #print("On va lire")
            err, responses = self._channel.read_chan()
            #print("read_chan responses={}".format(responses))
            if isinstance(responses, list) == True:
                # --- used by LX200
                while '' in responses:
                    responses.remove('')
                if len(responses)>0:
                    #self.print("=== Recu responses={}".format(responses))
                    valid_responses = True
            elif isinstance(responses, str) == True:
                # --- used by ASTROMECCA
                valid_responses = True
        except:
            # --- connection problem
            msg = "{} client problem. {}".format(self._remote_transport_protocol,sys.exc_info())
            self.print(msg)
            traceback.print_exc(file=sys.stdout)
        if valid_responses == True:
            return responses

    def putread_chan(self, msg):
        self.put_chan(msg)
        time.sleep(self._wait_sec)
        res = self.read_chan()
        return res

    def print(self, *args, **kwargs):
        """
        print method
        """
        if self._verbose_level>0:
            print (*args, **kwargs,end='\n')

    def __del__(self):
        self.close_chan()

# #####################################################################
# #####################################################################
# #####################################################################
# Main
# #####################################################################
# #####################################################################
# #####################################################################
            
if __name__ == "__main__":

    example = 1
    print("Example       = {}".format(example))
    
    if example == 1:
        """
        Create a Mount in simulation
        Create a Server linked to the mount
        Create a Client linked to the server
        """

        #--- Choice the transport and the langage protocol
        remote_transport = "TCP" ; # SERIAL TCP
        remote_protocol = "MCS"   ; # LX200 ASTROMECCA ASCOM
        test_client = True         ; # True -> port_serial_remote_client
        connect_real_mount = False  ; # True -> port_serial_astromecca
        use_pad = False            ; # True to use the GUI pad
        
        if 'remote_client' in globals():
            del(remote_client)
        if 'remote_server' in globals():
            del(remote_server)
            time.sleep(1)
        if 'mount_astromecca' in globals():
            del(mount_astromecca)
        time.sleep(0.5)
    
        # --- configuration depending the computer
        hostname = socket.gethostname()

        # --- serial port configurations
        if remote_transport == "SERIAL":
            tools = Mounttools()
            available_serial_ports = tools.get_available_serial_ports()
            nport = len(available_serial_ports)
            # --- At minima the server port exists
            if nport<1:
                print("Not enough serial ports for the server")
                exit()
            else:
                port_serial_remote_server=available_serial_ports[0]
            # --- Other ports
            if test_client == True and connect_real_mount == False:
                # --- Case : only client test, no real mount
                port_serial_remote_client=available_serial_ports[1]
            if test_client == False and connect_real_mount == True:
                # --- Case : only real mount, no client test
                port_serial_astromecca=available_serial_ports[1]
            if test_client == True and connect_real_mount == True:
                # --- Case : real mount and client test
                port_serial_remote_client=available_serial_ports[1]
                port_serial_astromecca=available_serial_ports[2]
            # === Special computers
            if hostname == "titanium":
                print("Configuration = {}".format(hostname))
                port_serial_remote_server=available_serial_ports[0]
                port_serial_remote_client=available_serial_ports[1]
                port_serial_astromecca=available_serial_ports[0]
            elif hostname == "rapido2":
                print("Configuration = {}".format(hostname))
                port_serial_astromecca='/dev/ttyAMA0'
                port_serial_remote_server='/dev/ttyAMA1'
                port_serial_remote_client='/dev/ttyAMA0'
            else:
                print("No predefined configuration for {}".format(hostname))
                
        # --- TCP port configurations
        if remote_transport == "TCP":
            host_tcp_remote_server = socket.gethostname()
            port_tcp_remote_server = 1111
            # === Special computers
            if hostname == "titanium":
                print("Configuration = {}".format(hostname))
                host_tcp_remote_server = '192.168.0.4'
            elif hostname == "rapido2":
                print("Configuration = {}".format(hostname))
            else:
                print("No predefined configuration for {}".format(hostname))

        # --- Summary of the configuration
        print("Transport protocol = {}".format(remote_transport))
        print("Langage protocol = {}".format(remote_protocol))
        if connect_real_mount == True:
            print("port_serial_mount         = {}".format(port_serial_astromecca))
        if remote_transport == "SERIAL":
            print("port_serial_remote_server = {}".format(port_serial_remote_server))
            if test_client == True:
                print("port_serial_remote_client = {}".format(port_serial_remote_client))
        else:
            print("host_tcp_remote_server = {}".format(host_tcp_remote_server))
            print("port_tcp_remote_server = {}".format(port_tcp_remote_server))
        
        home = celme.Home("GPS 2.0375 E 43.6443484725 136.9")
        site = celme.Site(home)
        
        # === ASTROMECCA connection
        mount_astromecca = Mountastro("HADEC", name="Guitalens Mount", manufacturer="Astro MECCA", model="TM350", serial_number="beta001", site=site, CONTROLLER_BASE_ID=1, CONTROLLER_POLAR_ID=2)
        if connect_real_mount == True:
            mount_astromecca.set_channel_params("SERIAL", port=port_serial_astromecca, baud_rate=115200, delay_init_chan=0.1, end_of_command_to_send="\r\n".encode('utf8'), end_of_command_to_receive="\r\n".encode('utf8'), delay_put_read=0.06)
            mount_astromecca.verbose_chan = False
        # --- shortcuts        
        mount_astromecca_axisb = mount_astromecca.axis[Mountaxis.BASE]
        mount_astromecca_axisp = mount_astromecca.axis[Mountaxis.POLAR]
        # --- simulation or not        
        mount_astromecca_axisb.real = False
        mount_astromecca_axisb.ratio_wheel_puley = 6.132857; # 6.27819 ; # 6.32721 ; # D=208.0 ; d=32.5 ; f=1.5 ; (D+f/2)/(d+f/2)
        mount_astromecca_axisb.inc_per_motor_rev = 1540 # DPR for -490000 to +490000
        mount_astromecca_axisb.senseinc = 1
        mount_astromecca_axisp.real = False
        mount_astromecca_axisp.ratio_wheel_puley = 6.75 ; # 6.75 ; # 6.7462935 ; # D=208.0 ; d=30.0 ; f=1.5 ; (D+f/2)/(d+f/2)
        mount_astromecca_axisp.inc_per_motor_rev = 1421
        mount_astromecca_axisp.senseinc = -1

        # --- Initial ha,dec for encoders
        #mount_astromecca_axisb.update_inc0(10750,-90,mount_astromecca_axisb.PIERSIDE_POS1)
        mount_astromecca.set_param("CONFIGURATION","Fork")
        if mount_astromecca.get_param("CONFIGURATION")=="German":
            # --- German mount
            mount_astromecca.set_param("LABEL_REGULAR","Tube West") ; # Tube west = PIERSIDE_POS1
            mount_astromecca.set_param("LABEL_FLIPED","Tube East")
            mount_astromecca.set_param("CAN_REVERSE",True)
            mount_astromecca.set_param("LIME_REVERSE",+30) ; # Tube west = PIERSIDE_POS1 = [-180 : lim_side_east]
            mount_astromecca.set_param("LIMW_REVERSE",-30) ; # Tube east = PIERSIDE_POS2 = [lim_side_west : +180]
            mount_astromecca_axisb.update_inc0(0,-90,mount_astromecca_axisb.PIERSIDE_POS1)
            mount_astromecca_axisp.update_inc0(0,90,mount_astromecca_axisp.PIERSIDE_POS1) 
            if mount_astromecca_axisb.real == True:
                mount_astromecca_axisb.update_inc0(62500,-90,mount_astromecca_axisb.PIERSIDE_POS1)
            if mount_astromecca_axisp.real == True:
                mount_astromecca_axisp.update_inc0(6500,90,mount_astromecca_axisp.PIERSIDE_POS1)
            mount_astromecca.park_ha = 270
            mount_astromecca.park_dec = 90
            mount_astromecca.park_side = mount_astromecca_axisb.PIERSIDE_POS1    
        elif mount_astromecca.get_param("CONFIGURATION")=="Fork":
            # --- Fork mount. Tube always "west" in "auto"
            mount_astromecca.set_param("LABEL_REGULAR","Regular") ; # Regular = PIERSIDE_POS1
            mount_astromecca.set_param("LABEL_FLIPED","Fliped")
            mount_astromecca.set_param("CAN_REVERSE",False)
            mount_astromecca.set_param("LIME_REVERSE",+90) ; # Tube west = PIERSIDE_POS1 = [-180 : lim_side_east]
            mount_astromecca.set_param("LIMW_REVERSE",-90) ; # Tube east = PIERSIDE_POS2 = [lim_side_west : +180]
            mount_astromecca_axisb.update_inc0(0,0,mount_astromecca_axisb.PIERSIDE_POS1)
            mount_astromecca_axisp.update_inc0(0,90,mount_astromecca_axisp.PIERSIDE_POS1) 
            if mount_astromecca_axisb.real == True:
                mount_astromecca_axisb.update_inc0(62500,0,mount_astromecca_axisb.PIERSIDE_POS1)
            if mount_astromecca_axisp.real == True:
                mount_astromecca_axisp.update_inc0(6500,90,mount_astromecca_axisp.PIERSIDE_POS1) 
            else:
                mount_astromecca_axisp._incsimu = -239793.8
            mount_astromecca.park_ha = 0
            mount_astromecca.park_dec = 0
            mount_astromecca.park_side = mount_astromecca_axisb.PIERSIDE_POS1    
            
        # --- first read of encoders (zero values the first time)
        incsimus = ["" for kaxis in range(Mountaxis.AXIS_MAX)] 
        mount_astromecca.enc2cel(incsimus, save=mount_astromecca.SAVE_ALL)        
        # --- second read of encoders (valid values)
        time.sleep(0.05)
        mount_astromecca.enc2cel(incsimus, save=mount_astromecca.SAVE_ALL)        
        # --- Init the simulation values according the real ones
        mount_astromecca_axisb.synchro_real2simu()
        # --- Get the initial position
        res = mount_astromecca.hadec_coord()
        mount_astromecca.log.print("Initial position = {}".format(res))
        
        # ======= ASTROMECCA parameters
        mount_astromecca.speedslew(5.0,5.0)
        mount_astromecca.disp()

        # ======= Transport protocol parameter
        if remote_protocol == "LX200" and remote_transport == "SERIAL":
            bauds = 9600
        else:
            bauds = 115200
        
        # ======= Server
        print("="*30)
        if remote_transport == "SERIAL":
            remote_port = port_serial_remote_server
        else:
            remote_port = port_tcp_remote_server
        msg = "{} server on port {} for protocol {}".format(remote_transport, remote_port, remote_protocol)
        print(msg)
        remote_server = MountremoteServer(mount_astromecca, remote_transport, port=remote_port, protocol=remote_protocol, verbose_level=1, baud=bauds) 
        remote_server.start()
        time.sleep(1)
        
        # The server is non blocking
        # Now you have the hand to send commands to the server        
        # To illustrate that, we send a message via a client

        if test_client == True:

            # ======= Client
            print("="*30)
            if remote_transport == "SERIAL":
                remote_port = port_serial_remote_client
            else:
                remote_port = port_tcp_remote_server            
            msg = "{} client on port {} for protocol {}".format(remote_transport, remote_port, remote_protocol)
            print(msg)
            if remote_transport == "SERIAL":
                remote_client = MountremoteClient(remote_transport, port=remote_port, baud=bauds, protocol=remote_protocol, verbose_level=1)
            else:
                remote_client = MountremoteClient(remote_transport, hostname=host_tcp_remote_server, port=remote_port, protocol=remote_protocol, verbose_level=1)
            remote_client.open_chan()
            print("="*30)
            if remote_protocol == "LX200":
                command = ':GR'
                result = remote_client.putread_chan(command)
                print("Command = {}\nResult = {}".format(command,result))
                print("="*30)
                command = '#:GD#'
                result = remote_client.putread_chan(command)
                print("Command = {}\nResult = {}".format(command,result))
            elif remote_protocol == "MCS":
                command = "{'req': {'do':{'exec' : 'self.radec_coord()'}}}"
                result = remote_client.putread_chan(command)
                print("Command = {}\nResult = {}".format(command,result))
                print("="*30)
                command = "{'req': {'get': 'radec'}}"
                result = remote_client.putread_chan(command)
                print("Command = {}\nResult = {}".format(command,result))
                print("="*30)
                command = "{'req': {'get': ''}}"
                result = remote_client.putread_chan(command)
                print("Command = {}\nResult = {}".format(command,result))
            elif remote_protocol == "ASCOM":
                command = 'RightAscension'
                result = remote_client.putread_chan(command)
                print("Command = {}\nResult = {}".format(command,result))
                print("="*30)
                command = 'Declination'
                result = remote_client.putread_chan(command)
                print("Command = {}\nResult = {}".format(command,result))
            print("="*30)

        if use_pad == True:
            try:
                print("Create the pad. Tk Event loop activated.")
                mount_astromecca.pad_create("pad_dev1")
                print("Pad deleted. Tk Event loop stopped")
            except (KeyboardInterrupt, SystemExit):
                pass
            except:
                raise  
            
        # To stop the server:
        # remote_server.stop()