Mercurial > avr_jtag

annotate py_avrjtag/jtagdev.py @ 10:cc106f278d7d

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Get identify of components
author Thinker K.F. Li <thinker@branda.to>
date Tue, 24 Feb 2009 13:32:04 +0800
parents 074e860d7d31
children 520f45b72ba7
rev   line source
8
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
1 import tms_ptns
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
2 import cmd_proto
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
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3
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
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4 class jtagdev(object):
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cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
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5 ST_RESET = 0
8
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
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6 ST_IDLE = 1
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
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7 ST_SHIFT_DR = 2
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
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8 ST_SHIFT_IR = 3
10
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
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diff changeset
9 ST_EXIT1_DR = 4
cc106f278d7d Get identify of components
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parents: 8
diff changeset
10 ST_EXIT1_IR = 5
8
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
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11
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
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12 def __init__(self, fo):
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
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13 self.fo = fo
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cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
14 self.state = self.ST_IDLE
8
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
15 self.seq = 0
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
16 pass
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
17
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
18 def _send_cmd(self, code, data):
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
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19 cmd = cmd_proto.cmd(self.seq, code, data)
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
20 frame = cmd.to_frame()
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
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21
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
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22 self.fo.write(frame)
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
23 self.fo.flush()
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
24 pass
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
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25
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
26 def _send_nbits_data_cmd(self, code, nbits, data):
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
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27 nbits_data = cmd_proto.prepend_nbits(nbits, data)
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
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parents:
diff changeset
28 self._send_cmd(code, nbits_data)
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
29 pass
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
30
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
31 def _send_tms(self, ptn, nbits):
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
32 self._send_nbits_data_cmd(cmd_proto.CPCMD_SHIFT_TMS,
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
33 nbits, ptn)
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
34 pass
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
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35
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
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parents:
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36 def wait_reply(self, tmo=None):
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
37 import select
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
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38
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cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
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39 frame = ''
cc106f278d7d Get identify of components
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parents: 8
diff changeset
40 while True:
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
41 if tmo == None:
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
42 rlist, wlist, xlist = select.select((self.fo,), (), ())
cc106f278d7d Get identify of components
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parents: 8
diff changeset
43 else:
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
44 rlist, wlist, xlist = select.select((self.fo,), (), (), tmo)
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
45 pass
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
46 if not rlist:
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
47 break
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
48 frame = frame + self.fo.read()
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
49 if len(frame) >= 4 and \
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
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50 len(frame) >= (ord(frame[3]) +
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
51 cmd_proto.cmd.FRAME_OVERHEAD):
cc106f278d7d Get identify of components
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diff changeset
52 break
cc106f278d7d Get identify of components
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parents: 8
diff changeset
53 tmo = 0.05
8
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
54 pass
10
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
55
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
56 if not frame:
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
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diff changeset
57 return None
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
58
8
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
59 cmd = cmd_proto.cmd()
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cc106f278d7d Get identify of components
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60 r = cmd.from_frame(frame)
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
61 if r:
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
62 return None
8
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
63 return cmd
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
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64
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
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diff changeset
65 def idle(self):
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
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parents:
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66 self.seq = (self.seq + 1) % 256
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
67
10
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
68 if self.state == self.ST_RESET:
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
69 ptn, nbits = tms_ptns.TMS_RESET_2_IDLE
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
70 else:
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
71 ptn, nbits = tms_ptns.TMS_IDLE_SEQ
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
72 pass
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
73 self._send_tms(ptn, nbits)
8
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
74
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
75 self.state = self.ST_IDLE
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
76 pass
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
77
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
78 def go_shift_IR(self):
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
79 if self.state == self.ST_SHIFT_IR:
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
80 return
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
81
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
82 if self.state == self.ST_IDLE:
10
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
83 ptn, ptn_nbits = tms_ptns.TMS_SHIFT_IR
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
84 self._send_tms(ptn, ptn_nbits)
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
85 elif self.state == self.ST_EXIT1_DR:
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
86 ptn, ptn_nbits = tms_ptns.TMS_EXIT1_DR_2_SHIFT_IR
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
87 self._send_tms(ptn, ptn_nbits)
8
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
88 else:
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
89 raise RuntimeError, 'Transite to shift IR state from invalid state'
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
90 self.state = self.ST_SHIFT_IR
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
91 pass
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
92
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
93 def go_shift_DR(self):
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
94 if self.state == self.ST_SHIFT_DR:
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
95 return
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
96
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
97 if self.state == self.ST_IDLE:
10
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
98 ptn, ptn_nbits = tms_ptns.TMS_SHIFT_DR
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
99 self._send_tms(ptn, ptn_nbits)
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
100 elif self.state == self.ST_EXIT1_IR:
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
101 ptn, ptn_nbits = tms_ptns.TMS_EXIT1_IR_2_SHIFT_DR
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
102 self._send_tms(ptn, ptn_nbits)
8
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
103 else:
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
104 raise RuntimeError, 'Transite to shift DR state from invalid state'
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
105 pass
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
106 self.state = self.ST_SHIFT_DR
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
107 pass
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
108
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
109 def shift_IR(self, data, nbits):
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
110 self.seq = (self.seq + 1) % 256
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
111
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
112 if self.state != self.ST_SHIFT_IR:
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
113 raise RuntimeError, 'Invalid state'
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
114
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
115 self._send_nbits_data_cmd(cmd_proto.CPCMD_SHIFT_TDI,
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
116 nbits, data)
10
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
117 self.state = self.ST_EXIT1_IR
8
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
118 pass
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
119
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
120 def shift_DR(self, data, nbits):
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
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parents:
diff changeset
121 self.seq = (self.seq + 1) % 256
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
122
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
123 if self.state != self.ST_SHIFT_DR:
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
124 raise RuntimeError, 'Invalid state'
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
125
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
126 self._send_nbits_data_cmd(cmd_proto.CPCMD_SHIFT_TDI,
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
127 nbits, data)
10
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
128 self.state = self.ST_EXIT1_DR
8
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
129 pass
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
130
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
131 def shift_DR_n_out(self, data, nbits):
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
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parents:
diff changeset
132 self.seq = (self.seq + 1) % 256
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
133
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
134 if self.state != self.ST_SHIFT_DR:
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
135 raise RuntimeError, 'Invalid state'
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
136
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
137 self._send_nbits_data_cmd(cmd_proto.CPCMD_SHIFT_TDI_TDO,
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
138 nbits, data)
10
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
139 self.state = self.ST_EXIT1_DR
8
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
140 pass
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
141
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
142 def reset(self):
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
143 self._send_cmd(cmd_proto.CPCMD_TRST, '')
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
144 self.state = self.ST_RESET
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
145 pass
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
146 pass
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
147
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
148 def _extract_nbits_data(nbits_data):
10
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
149 nbits = ord(nbits_data[0]) | (ord(nbits_data[1]) << 8)
8
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
150 return nbits, nbits_data[2:]
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
151
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
152 def _get_bit(data, bit_idx):
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
153 byte_off = bit_idx / 8
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
154 bit_off = bit_idx % 8
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
155 return (ord(data[byte_off]) >> bit_off) & 0x1
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
156
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
157 def identify_components(dev):
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
158 dev.go_shift_IR()
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
159 reply = dev.wait_reply()
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
160 if reply.code != cmd_proto.CPCMD_ACK:
10
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
161 raise RuntimeError, 'invalid reply code 0x%02x' % (reply.code)
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
162
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
163 dev.shift_IR('\x02', 4)
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
164 reply = dev.wait_reply()
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
165 if reply.code != cmd_proto.CPCMD_ACK:
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
166 raise RuntimeError, 'invalid reply code 0x%02x' % (reply.code)
8
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
167
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
168 dev.go_shift_DR()
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
169 reply = dev.wait_reply()
10
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
170 if reply.code != cmd_proto.CPCMD_ACK:
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
171 raise RuntimeError, 'invalid reply code 0x%02x' % (reply.code)
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
172
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
173 dev.shift_DR_n_out('\xff' * 252, 252 * 8)
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
174 reply = dev.wait_reply()
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
175 if not reply:
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
176 raise RuntimeError, 'Invalid replied message'
8
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
177 if reply.code != cmd_proto.CPCMD_DATA:
10
cc106f278d7d Get identify of components
Thinker K.F. Li <thinker@branda.to>
parents: 8
diff changeset
178 raise RuntimeError, 'invalid replied code 0x%02x %s' % (reply.code, repr(reply))
8
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
179
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
180 nbits, data = _extract_nbits_data(reply.data)
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
181
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
182 components = []
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
183 i = 0
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
184 while i < nbits:
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
185 bit = _get_bit(data, i)
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
186 if bit == 0:
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
187 components.append(0)
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
188 i = i + 1
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
189 else:
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
190 comp_id = 0
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
191 for j in range(32):
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
192 bit = _get_bit(data, i + j)
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
193 comp_id = comp_id | (bit << j)
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
194 pass
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
195 if comp_id == 0xffffffff:
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
196 break
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
197 components.append(comp_id)
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
198 i = i + 32
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
199 pass
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
200 pass
074e860d7d31 jtagdev is a desktop client to communicate with jtag device through Arduino.
Thinker K.F. Li <thinker@branda.to>
parents:
diff changeset
201 return components