pyinst: rsib.py annotate

annotate rsib.py @ 72:da3558dec4e3

Fetch large data blocks correctly. Add ask function.

author	Daniel O'Connor <doconnor@gsoft.com.au>
date	Wed, 25 Sep 2024 20:56:39 +0930
parents	00800345fbae
children	b6ebe05f250f

rev	line source
6 85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	1 #!/usr/bin/env python
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	2
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	3 # Copyright (c) 2009
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	4 # Daniel O'Connor <darius@dons.net.au>. All rights reserved.
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	5 #
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	6 # Redistribution and use in source and binary forms, with or without
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	7 # modification, are permitted provided that the following conditions
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	8 # are met:
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	9 # 1. Redistributions of source code must retain the above copyright
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	10 # notice, this list of conditions and the following disclaimer.
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	11 # 2. Redistributions in binary form must reproduce the above copyright
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	12 # notice, this list of conditions and the following disclaimer in the
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	13 # documentation and/or other materials provided with the distribution.
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	14 #
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	15 # THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	16 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	17 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	18 # ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	19 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	20 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	21 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	22 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	23 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	24 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	25 # SUCH DAMAGE.
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	26 #
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	27
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	28 # Reverse engineered from the Linux library & example program at
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	29 # http://epsrv.astro.umk.pl/~ep/irbene/rsib/library/RSIB-Linux.zip
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	30 #
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	31 # There are 2 socket connections for some reason.
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	32 # The first seems to do [nearly] all the work
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	33 #
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	34 # Packets to the instrument
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	35 # On connection:
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	36 # -> 00 00 00 40
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	37 # <- 00 00 00 40 a0 04 00 00
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	38 #
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	39 # We need to echo back the last 4 bytes of the reply to a second
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	40 # socket opened to the same port. I don't know what that socket is for
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	41 # though.
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	42 #
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	43 # Send a command:
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	44 # -> 00 00 00 05 90 00 01 2a 49 44 4e 3f .......* IDN?
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	45 #
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	46 # Offs Value Meaning
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	47 # 00 00 ?
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	48 # 01 00 ?
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	49 # 02 00 ?
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	50 # 03 05 Length
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	51 # 04 90 MsgID
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	52 # 05 00 ?
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	53 # 06 03 Seq number
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	54 # 07 2a (*) Cmd byte 0
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	55 # 08 49 (I) Cmd byte 1
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	56 # 09 44 (D) Cmd byte 2
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	57 # 10 4a (N) Cmd byte 3
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	58 # 10 3f (?) Cmd byte 4
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	59 #
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	60 # Interactive program seems to cap length at 0x99 but perhaps the
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	61 # first 4 bytes are length.
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	62 #
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	63 # Reply to command:
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	64 # <- 00 00 00 23 80 00 01 52 6f 68 ...
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	65 #
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	66 # Offs Value Meaning
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	67 # 00 00 Length 31..24
72 da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	68 # 01 00 of 23..16
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	69 # 02 00 block 15..8
6 85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	70 # 03 23 7..0
72 da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	71 # 04 00/80 Is 0x80 if this is the last block in a sequence
6 85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	72 # 05 00 ?
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	73 # 06 01 Seq number
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	74
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	75 MSG_HELLO = 0x40 # We send this on connect
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	76 MSG_CMD = 0x90 # Command to the instrument
14 55c8dae6d1db Add test code and some (not enabled) sequence checking. Daniel O'Connor <darius@dons.net.au> parents: 6 diff changeset	77 MSG_SRQ = 0x91 # Query SRQ
26 226ea06bc050 Use "new" style exceptions. Daniel O'Connor <darius@dons.net.au> parents: 21 diff changeset	78
6 85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	79 import socket
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	80
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	81 class RSIBDevice(object):
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	82 hello = '\x00\x00\x00\x40'
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	83 docmd = '\x00\x00\x00\x05\x90\x00\x01'
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	84
26 226ea06bc050 Use "new" style exceptions. Daniel O'Connor <darius@dons.net.au> parents: 21 diff changeset	85 def __init__(self, host, port = None):
226ea06bc050 Use "new" style exceptions. Daniel O'Connor <darius@dons.net.au> parents: 21 diff changeset	86 if port == None:
226ea06bc050 Use "new" style exceptions. Daniel O'Connor <darius@dons.net.au> parents: 21 diff changeset	87 port = 2525
6 85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	88 self.host = host
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	89 self.port = port
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	90
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	91 s1 = socket.socket()
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	92 s1.settimeout(5)
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	93 s1.connect((self.host, self.port))
71 00800345fbae Python3ise RSIB code Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	94 s1.send(b'\x00\x00\x00\x40')
00800345fbae Python3ise RSIB code Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	95 rx = b''
6 85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	96 while len(rx) < 8:
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	97 rx = rx + s1.recv(8)
71 00800345fbae Python3ise RSIB code Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	98 if rx == b'':
00800345fbae Python3ise RSIB code Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	99 raise IOError("EOF from device")
6 85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	100
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	101 s2 = socket.socket()
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	102 s2.settimeout(5)
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	103 s2.connect((self.host, self.port))
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	104 s2.send(rx[4:])
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	105
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	106 self.s1 = s1
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	107 self.s2 = s2
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	108 self.tag = 0
72 da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	109
6 85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	110 def write(self, cmd, timeout = 0.5):
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	111 """Send data (string) to the instrument"""
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	112 self.s1.settimeout(timeout)
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	113
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	114 if len(cmd) > 0x99:
71 00800345fbae Python3ise RSIB code Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	115 raise ValueError("Command too long")
72 da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	116
6 85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	117 # Pre-increment for easy comparison in read
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	118 self.tag = (self.tag + 1) & 0xff
71 00800345fbae Python3ise RSIB code Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	119 msg = b'\x00\x00\x00' + bytes([len(cmd)]) + b'\x90\x00' + bytes([self.tag]) + cmd.encode('ascii')
6 85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	120 self.s1.send(msg)
72 da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	121
6 85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	122 def read(self, timeout = 0.5):
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	123 """Read data from the device, waits for up to timeout seconds for each TCP read"""
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	124
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	125 self.s1.settimeout(timeout)
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	126
71 00800345fbae Python3ise RSIB code Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	127 reply = b''
72 da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	128 last = False
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	129 while not last:
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	130 # Fetch the header
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	131 rx = b''
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	132 remain = 7
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	133 while len(rx) < 7:
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	134 rx = self.s1.recv(remain)
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	135 if rx == b'':
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	136 raise IOError("EOF from device")
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	137 remain -= len(rx)
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	138 rxlen = rx[0] << 24 \| rx[1] << 16 \| rx[2] << 8 \| rx[3]
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	139 #print(rx, rxlen)
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	140 if self.tag != rx[6]:
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	141 raise IOError("Reply out of order, got 0x%02x expected 0x%02x" % (rx[6], self.tag))
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	142 if rx[4] == 0x80:
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	143 #print('EOM')
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	144 last = True
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	145 if rx[5] != 0:
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	146 print("Mystery byte %d != 0" % (rx[5]))
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	147
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	148 # Fetch the actual data block now we know the length
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	149 remain = rxlen
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	150 while remain > 0:
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	151 rx = self.s1.recv(remain)
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	152 if rx == b'':
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	153 raise IOError("EOF from device")
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	154 reply += rx
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	155 remain -= len(rx)
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	156
6 85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	157 return(reply)
85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	158
72 da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	159 def ask(self, s, timeout = None):
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	160 '''Wrapper to send a command and wait for a reply'''
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	161 self.write(s)
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	162 return self.read(timeout = timeout)
da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	163
14 55c8dae6d1db Add test code and some (not enabled) sequence checking. Daniel O'Connor <darius@dons.net.au> parents: 6 diff changeset	164 def queryrsb(self):
71 00800345fbae Python3ise RSIB code Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	165 msg = b'\x00\x00\x00\x00\xd1\x18\x00'
14 55c8dae6d1db Add test code and some (not enabled) sequence checking. Daniel O'Connor <darius@dons.net.au> parents: 6 diff changeset	166 self.s2.send(msg)
72 da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	167
71 00800345fbae Python3ise RSIB code Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	168 reply = b''
14 55c8dae6d1db Add test code and some (not enabled) sequence checking. Daniel O'Connor <darius@dons.net.au> parents: 6 diff changeset	169 while len(reply) < 7:
55c8dae6d1db Add test code and some (not enabled) sequence checking. Daniel O'Connor <darius@dons.net.au> parents: 6 diff changeset	170 rx = self.s2.recv(7)
71 00800345fbae Python3ise RSIB code Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	171 if rx == b'':
00800345fbae Python3ise RSIB code Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	172 raise IOError("EOF from device")
14 55c8dae6d1db Add test code and some (not enabled) sequence checking. Daniel O'Connor <darius@dons.net.au> parents: 6 diff changeset	173 reply += rx
6 85dfc0babc36 Add basic RSIB parser and example program. Daniel O'Connor <darius@dons.net.au> parents: diff changeset	174
14 55c8dae6d1db Add test code and some (not enabled) sequence checking. Daniel O'Connor <darius@dons.net.au> parents: 6 diff changeset	175 # '\x00\x00\x00\x00\x80\x04\x01' => STB = 4
71 00800345fbae Python3ise RSIB code Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	176 if rx[4] != b'\x80':
00800345fbae Python3ise RSIB code Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	177 raise IOError("Incorrect Msg ID in response to STB query")
72 da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	178
71 00800345fbae Python3ise RSIB code Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	179 return rx[5]
14 55c8dae6d1db Add test code and some (not enabled) sequence checking. Daniel O'Connor <darius@dons.net.au> parents: 6 diff changeset	180
55c8dae6d1db Add test code and some (not enabled) sequence checking. Daniel O'Connor <darius@dons.net.au> parents: 6 diff changeset	181 def waitsrq(self):
71 00800345fbae Python3ise RSIB code Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	182 msg = b'\x00\x00\x00\x00\xb1\x00\x00'
72 da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	183
14 55c8dae6d1db Add test code and some (not enabled) sequence checking. Daniel O'Connor <darius@dons.net.au> parents: 6 diff changeset	184 def testsrq(self):
71 00800345fbae Python3ise RSIB code Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	185 msg = b'\x00\x00\x00\x00\x91\x00\x00'
14 55c8dae6d1db Add test code and some (not enabled) sequence checking. Daniel O'Connor <darius@dons.net.au> parents: 6 diff changeset	186 self.s2.send(msg)
71 00800345fbae Python3ise RSIB code Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	187 reply = b''
14 55c8dae6d1db Add test code and some (not enabled) sequence checking. Daniel O'Connor <darius@dons.net.au> parents: 6 diff changeset	188 while len(reply) < 7:
55c8dae6d1db Add test code and some (not enabled) sequence checking. Daniel O'Connor <darius@dons.net.au> parents: 6 diff changeset	189 rx = self.s2.recv(7)
71 00800345fbae Python3ise RSIB code Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	190 if rx == b'':
00800345fbae Python3ise RSIB code Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	191 raise IOError("EOF from device")
14 55c8dae6d1db Add test code and some (not enabled) sequence checking. Daniel O'Connor <darius@dons.net.au> parents: 6 diff changeset	192 reply += rx
72 da3558dec4e3 Fetch large data blocks correctly. Daniel O'Connor <doconnor@gsoft.com.au> parents: 71 diff changeset	193
14 55c8dae6d1db Add test code and some (not enabled) sequence checking. Daniel O'Connor <darius@dons.net.au> parents: 6 diff changeset	194 # 00 00 00 00 80 14 08 - SRQ = 0
55c8dae6d1db Add test code and some (not enabled) sequence checking. Daniel O'Connor <darius@dons.net.au> parents: 6 diff changeset	195 # 00 00 00 00 a0 64 07 - SRQ = 1
71 00800345fbae Python3ise RSIB code Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	196 if rx == b'\x00\x00\x00\x00\x80\x14\x08':
14 55c8dae6d1db Add test code and some (not enabled) sequence checking. Daniel O'Connor <darius@dons.net.au> parents: 6 diff changeset	197 return False
71 00800345fbae Python3ise RSIB code Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	198 elif rx == b'\x00\x00\x00\x00\xa0\x64\x07':
14 55c8dae6d1db Add test code and some (not enabled) sequence checking. Daniel O'Connor <darius@dons.net.au> parents: 6 diff changeset	199 return True
55c8dae6d1db Add test code and some (not enabled) sequence checking. Daniel O'Connor <darius@dons.net.au> parents: 6 diff changeset	200 else:
71 00800345fbae Python3ise RSIB code Daniel O'Connor <doconnor@gsoft.com.au> parents: 56 diff changeset	201 raise IOError("Unknown SRQ byte sequence - " + str(rx))

Mercurial > ~darius > hgwebdir.cgi > pyinst

annotate rsib.py @ 72:da3558dec4e3