1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
|
#!/usr/bin/env python3
"""
# Copyright (C) 2012-2021 Michael Buesch <m@bues.ch>
#
# Licensed under the Apache License version 2.0
# or the MIT license, at your option.
# SPDX-License-Identifier: Apache-2.0 OR MIT
"""
import sys
import getopt
import time
try:
from serial import *
except ImportError:
print("ERROR: pyserial module not available.")
print("On Debian Linux please do: apt-get install python3-serial")
sys.exit(1)
def str2bool(string):
if string.lower() in ("true", "on", "yes"):
return True
if string.lower() in ("false", "off", "no"):
return False
try:
return bool(int(string))
except ValueError as e:
pass
return False
def hexdump(data):
ret = []
for c in data:
ret.append("%02X" % c)
return "".join(ret)
class MySmartUsbError(Exception): pass
class MySmartUsb(object):
PREFIX = b"\xE6\xB5\xBA\xB9\xB2\xB3\xA9"
MODE_PROG = b'p'
MODE_DATA = b'd'
MODE_QUIET = b'q'
def __init__(self, ttyDev, debug=False):
self.debug = debug
self.serial = Serial(ttyDev, 19200, 8, PARITY_NONE, 1)
self.serial.flushInput()
self.serial.flushOutput()
def resetBoard(self):
self.__sendCmd(b'r')
def resetProg(self):
self.__sendCmd(b'R')
def power(self, on):
self.__sendCmd(b'+' if on else b'-')
def setMode(self, mode):
if self.getMode() == mode:
return
self.__sendCmd(mode)
time.sleep(0.5)
if self.getMode() == mode:
return
raise MySmartUsbError("Failed to set mode")
def getMode(self):
return self.__sendCmd(b'i')
def getVersion(self):
b = self.__sendCmd(b'v')
try:
return b.decode('ASCII')
except UnicodeError:
raise MySmartUsbError("Failed to read version string")
def close(self):
self.serial.flush()
self.serial.close()
def __sendCmd(self, cmd):
data = self.PREFIX + cmd
if self.debug:
print("Sending command: " + hexdump(data))
self.serial.write(data)
self.serial.flush()
if cmd == b'R':
return
if cmd == b'v':
time.sleep(0.25)
count = self.serial.inWaiting()
ret = self.serial.read(count)
ret = ret[ret.find(b'\xF7')+1:]
ret = ret[:ret.find(b'\xF7')]
return ret
ret = self.serial.read(5)
while ret[0:2] != b"\xF7\xB1" or ret[3:5] != b"\x0D\x0A":
ret = ret[1:] + self.serial.read(1)
if self.debug:
print("Command returned: " + hexdump(ret))
if cmd != b'i' and ret[2] != ord(cmd):
raise MySmartUsbError(
"Invalid command return: %02X" %\
(ret[2]))
return bytes( (ret[2], ) )
def usage():
print("mysmartusb [OPTIONS] /dev/ttyUSBx")
print("")
print("Options:")
print(" -r|--reset-board Reset the board")
print(" -R|--reset-prog Reset the programmer")
print(" -p|--power 1/0 Turn on board power on/off")
print(" -m|--mode p/d/q Enter progmode/datamode/quietmode")
print(" -V|--getversion Read and display the mysmartusb version")
print("")
print(" -D|--debug Enable debugging")
def main():
actions = []
debug = False
try:
(opts, args) = getopt.getopt(sys.argv[1:],
"hrRp:m:VD",
[ "help", "reset-board", "reset-prog", "prog=",
"mode=", "getversion", "debug", ])
except getopt.GetoptError:
usage()
return 1
for (o, v) in opts:
if o in ("-h", "--help"):
usage()
return 0
if o in ("-r", "--reset-board"):
actions.append( ("reset-board",) )
if o in ("-R", "--reset-prog"):
actions.append( ("reset-prog",) )
if o in ("-p", "--power"):
actions.append( ("power", str2bool(v)) )
if o in ("-m", "--mode"):
if v.lower() == "p":
mode = MySmartUsb.MODE_PROG
elif v.lower() == "d":
mode = MySmartUsb.MODE_DATA
elif v.lower() == "q":
mode = MySmartUsb.MODE_QUIET
else:
print("Invalid mode: " + v)
return 1
actions.append( ("mode", mode) )
if o in ("-V", "--getversion"):
actions.append( ("getversion",) )
if o in ("-D", "--debug"):
debug = True
if len(args) != 1:
usage()
return 1
dev = args[0]
try:
msu = MySmartUsb(dev, debug)
for action in actions:
if action[0] == "reset-board":
msu.resetBoard()
elif action[0] == "reset-prog":
msu.resetProg()
elif action[0] == "power":
msu.power(action[1])
elif action[0] == "mode":
msu.setMode(action[1])
elif action[0] == "getversion":
print(msu.getVersion())
else:
assert(0)
msu.close()
except MySmartUsbError as e:
print("ERROR: " + str(e))
return 1
return 0
if __name__ == "__main__":
sys.exit(main())
|
