Product specifications

Source Code

NRAO Linux Python Library

Source Code

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

# This program is distributed in the hope that it will be useful, but

# WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU

# General Public License for more details.

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

# Correspondence concerning GBT software should be addressed as follows:

# GBT Operations

# National Radio Astronomy Observatory

# P. O. Box 2

# Green Bank, WV 24944-0002 USA

"""

Provides a serial interface to the Valon 500x.

"""

# Python modules

import struct

# Third party modules

import serial

__author__ = "Patrick Brandt"

__credits__ = ["Patrick Brandt, Stewart Rumley, Steven Stark"]

__license__ = "GPL"

#__version__ = "1.0"

__maintainer__ = "Patrick Brandt"

# Handy aliases

SYNTH_A = 0x00

SYNTH_B = 0x08

INT_REF = 0x00

EXT_REF = 0x01

ACK = 0x06

NACK = 0x15

class Synthesizer:

def __init__(self, port):

self.conn = serial.Serial(None, 9600, serial.EIGHTBITS,

serial.PARITY_NONE, serial.STOPBITS_ONE)

self.conn.setPort(port)