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| 1 | #!/usr/bin/python | |
| 2 | # -*- coding: UTF-8 -*- | |
| 3 | # Contec CMS 50F firmware 3.7 dumper | |
| 4 | # (C) 2014, François Revol <[email protected]> | |
| 5 | ||
| 6 | #cf. http://elinux.org/Serial_port_programming | |
| 7 | ||
| 8 | - | #port = serial.Serial("/dev/ttyUSB1")
|
| 8 | + | |
| 9 | import sys | |
| 10 | import time | |
| 11 | ||
| 12 | ||
| 13 | def send_cmd(p, c): | |
| 14 | print "> %s" % c | |
| 15 | c = c.replace(' ', '')
| |
| 16 | c = c.decode("hex")
| |
| 17 | #print c.encode("hex")
| |
| 18 | p.write(c) | |
| 19 | - | def recv_data(p, l): |
| 19 | + | #p.flush() |
| 20 | ||
| 21 | - | for i in range(l): |
| 21 | + | def recv_data(p, l=None): |
| 22 | - | print "waiting for byte" |
| 22 | + | |
| 23 | while l is None or len(data) < l: | |
| 24 | - | d = p.read(1) |
| 24 | + | time.sleep(0.5) |
| 25 | - | print "< %s" % d.encode("hex")
|
| 25 | + | if p.inWaiting() < 1: |
| 26 | - | data.append(d) |
| 26 | + | print "No more data..." |
| 27 | - | return d |
| 27 | + | # XXX: do something? |
| 28 | if l is None: | |
| 29 | break | |
| 30 | want = max(p.inWaiting(), 1) | |
| 31 | if l is not None: | |
| 32 | want = min(want, l - len(data)) | |
| 33 | - | with serial.Serial(sys.argv[1], 19200) as p: |
| 33 | + | # just for nicer hex dump, wrap at 8 bytes |
| 34 | - | print p.isOpen() |
| 34 | + | want = min(want, 8) |
| 35 | #print len | |
| 36 | d = p.read(want) | |
| 37 | hx = d.encode("hex")
| |
| 38 | print "< %s" % " ".join(hx[i:i+2] for i in range(0, len(hx), 2)) | |
| 39 | data += d | |
| 40 | - | recv_data(p, 4) |
| 40 | + | |
| 41 | return data | |
| 42 | ||
| 43 | if len(sys.argv) < 2: | |
| 44 | print "Usage: %s serialdev" % sys.argv[0] | |
| 45 | exit(1) | |
| 46 | ||
| 47 | #, parity=serial.PARITY_ODD | |
| 48 | with serial.Serial(port=sys.argv[1], baudrate=115200) as p: | |
| 49 | send_cmd(p, '7d 81 a7 80 80 80 80 80 80') | |
| 50 | recv_data(p, 2) | |
| 51 | send_cmd(p, '7d 81 a2 80 80 80 80 80 80') | |
| 52 | recv_data(p, 2) | |
| 53 | send_cmd(p, '7d 81 a0 80 80 80 80 80 80') | |
| 54 | recv_data(p, 4) | |
| 55 | ||
| 56 | send_cmd(p, '7d 81 b0 80 80 80 80 80 80') | |
| 57 | recv_data(p) | |
| 58 | ||
| 59 | send_cmd(p, '7d 81 ac 80 80 80 80 80 80') | |
| 60 | recv_data(p) | |
| 61 | ||
| 62 | send_cmd(p, '7d 81 b3 80 80 80 80 80 80') | |
| 63 | recv_data(p) | |
| 64 | ||
| 65 | send_cmd(p, '7d 81 ad 80 80 80 80 80 80') | |
| 66 | recv_data(p) | |
| 67 | ||
| 68 | send_cmd(p, '7d 81 a3 80 80 80 80 80 80') | |
| 69 | recv_data(p) | |
| 70 | ||
| 71 | send_cmd(p, '7d 81 ab 80 80 80 80 80 80') | |
| 72 | recv_data(p) | |
| 73 | ||
| 74 | send_cmd(p, '7d 81 a4 80 80 80 80 80 80') | |
| 75 | recv_data(p) | |
| 76 | ||
| 77 | send_cmd(p, '7d 81 a5 80 80 80 80 80 80') | |
| 78 | recv_data(p) | |
| 79 | ||
| 80 | send_cmd(p, '7d 81 af 80 80 80 80 80 80') | |
| 81 | recv_data(p) | |
| 82 | ||
| 83 | send_cmd(p, '7d 81 a7 80 80 80 80 80 80') | |
| 84 | recv_data(p) | |
| 85 | ||
| 86 | send_cmd(p, '7d 81 a2 80 80 80 80 80 80') | |
| 87 | recv_data(p) | |
| 88 | ||
| 89 | ||
| 90 | send_cmd(p, '7d 81 a6 80 80 80 80 80 80') | |
| 91 | recv_data(p) |
