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
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
|
#!/usr/bin/python
# Copyright 2016 The Chromium OS Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""Program to fetch power logging data from a sweetberry device
or other usb device that exports a USB power logging interface.
"""
from __future__ import print_function
import argparse
import array
from distutils import sysconfig
import json
import os
import struct
import sys
import time
import traceback
from pprint import pprint
import usb
from stats_manager import StatsManager
LIB_DIR = os.path.join(sysconfig.get_python_lib(standard_lib=False), 'servo',
'data')
# This can be overridden by -v.
debug = False
def debuglog(msg):
if debug:
print(msg)
def logoutput(msg):
print(msg)
sys.stdout.flush()
def process_filename(filename):
"""Find the file path from the filename.
If filename is already the complete path, return that directly. If filename is
just the short name, look for the file in the current working directory, in
the directory of the current .py file, and then in the directory installed by
hdctools. If the file is found, return the complete path of the file.
Args:
filename: complete file path or short file name.
Returns:
a complete file path.
Raises:
IOError if filename does not exist.
"""
# Check if filename is absolute path.
if os.path.isabs(filename) and os.path.isfile(filename):
return filename
# Check if filename is relative to current working directory.
cwd = os.path.join(os.getcwd(), filename)
if os.path.isfile(cwd):
return cwd
# Check if filename is relative to same directory as current .py file.
sd = os.path.join(os.path.dirname(os.path.realpath(__file__)), filename)
if os.path.isfile(sd):
return sd
# Check if file is installed by hdctools.
hdc = os.path.join(LIB_DIR, filename)
if os.path.isfile(hdc):
return hdc
raise IOError('No such file or directory: \'%s\'' % filename)
class Spower(object):
"""Power class to access devices on the bus.
Usage:
bus = Spower()
Instance Variables:
_dev: pyUSB device object
_read_ep: pyUSB read endpoint for this interface
_write_ep: pyUSB write endpoint for this interface
"""
# INA interface type.
INA_POWER = 1
INA_BUSV = 2
INA_CURRENT = 3
INA_SHUNTV = 4
# INA_SUFFIX is used to differentiate multiple ina types for the same power
# rail. No suffix for when ina type is 0 (non-existent) and when ina type is 1
# (power, no suffix for backward compatibility).
INA_SUFFIX = ['', '', '_busv', '_cur', '_shuntv']
# usb power commands
CMD_RESET = 0x0000
CMD_STOP = 0x0001
CMD_ADDINA = 0x0002
CMD_START = 0x0003
CMD_NEXT = 0x0004
CMD_SETTIME = 0x0005
# Map between header channel number (0-47)
# and INA I2C bus/addr on sweetberry.
CHMAP = {
0: (3, 0x40),
1: (1, 0x40),
2: (2, 0x40),
3: (0, 0x40),
4: (3, 0x41),
5: (1, 0x41),
6: (2, 0x41),
7: (0, 0x41),
8: (3, 0x42),
9: (1, 0x42),
10: (2, 0x42),
11: (0, 0x42),
12: (3, 0x43),
13: (1, 0x43),
14: (2, 0x43),
15: (0, 0x43),
16: (3, 0x44),
17: (1, 0x44),
18: (2, 0x44),
19: (0, 0x44),
20: (3, 0x45),
21: (1, 0x45),
22: (2, 0x45),
23: (0, 0x45),
24: (3, 0x46),
25: (1, 0x46),
26: (2, 0x46),
27: (0, 0x46),
28: (3, 0x47),
29: (1, 0x47),
30: (2, 0x47),
31: (0, 0x47),
32: (3, 0x48),
33: (1, 0x48),
34: (2, 0x48),
35: (0, 0x48),
36: (3, 0x49),
37: (1, 0x49),
38: (2, 0x49),
39: (0, 0x49),
40: (3, 0x4a),
41: (1, 0x4a),
42: (2, 0x4a),
43: (0, 0x4a),
44: (3, 0x4b),
45: (1, 0x4b),
46: (2, 0x4b),
47: (0, 0x4b),
}
def __init__(self, board, vendor=0x18d1,
product=0x5020, interface=1, serialname=None):
self._board = board
# Find the stm32.
dev_list = usb.core.find(idVendor=vendor, idProduct=product, find_all=True)
if dev_list is None:
raise Exception("Power", "USB device not found")
# Check if we have multiple stm32s and we've specified the serial.
dev = None
if serialname:
for d in dev_list:
dev_serial = "PyUSB dioesn't have a stable interface"
try:
dev_serial = usb.util.get_string(d, 256, d.iSerialNumber)
except ValueError:
# Incompatible pyUsb version.
dev_serial = usb.util.get_string(d, d.iSerialNumber)
if dev_serial == serialname:
dev = d
break
if dev is None:
raise SusbError("USB device(%s) not found" % serialname)
else:
try:
dev = dev_list[0]
except TypeError:
# Incompatible pyUsb version.
dev = dev_list.next()
debuglog("Found USB device: %04x:%04x" % (vendor, product))
self._dev = dev
# Get an endpoint instance.
try:
dev.set_configuration()
except usb.USBError:
pass
cfg = dev.get_active_configuration()
intf = usb.util.find_descriptor(cfg, custom_match=lambda i: \
i.bInterfaceClass==255 and i.bInterfaceSubClass==0x54)
self._intf = intf
debuglog("InterfaceNumber: %s" % intf.bInterfaceNumber)
read_ep = usb.util.find_descriptor(
intf,
# match the first IN endpoint
custom_match = \
lambda e: \
usb.util.endpoint_direction(e.bEndpointAddress) == \
usb.util.ENDPOINT_IN
)
self._read_ep = read_ep
debuglog("Reader endpoint: 0x%x" % read_ep.bEndpointAddress)
write_ep = usb.util.find_descriptor(
intf,
# match the first OUT endpoint
custom_match = \
lambda e: \
usb.util.endpoint_direction(e.bEndpointAddress) == \
usb.util.ENDPOINT_OUT
)
self._write_ep = write_ep
debuglog("Writer endpoint: 0x%x" % write_ep.bEndpointAddress)
self.clear_ina_struct()
debuglog("Found power logging USB endpoint.")
def clear_ina_struct(self):
""" Clear INA description struct."""
self._inas = []
def append_ina_struct(self, name, rs, port, addr,
data=None, ina_type=INA_POWER):
"""Add an INA descriptor into the list of active INAs.
Args:
name: Readable name of this channel.
rs: Sense resistor value in ohms, floating point.
port: I2C channel this INA is connected to.
addr: I2C addr of this INA.
data: Misc data for special handling, board specific.
ina_type: INA function to use, power, voltage, etc.
"""
ina = {}
ina['name'] = name
ina['rs'] = rs
ina['port'] = port
ina['addr'] = addr
ina['type'] = ina_type
# Calculate INA231 Calibration register
# (see INA231 spec p.15)
# CurrentLSB = uA per div = 80mV / (Rsh * 2^15)
# CurrentLSB uA = 80000000nV / (Rsh mOhm * 0x8000)
ina['uAscale'] = 80000000. / (rs * 0x8000);
ina['uWscale'] = 25. * ina['uAscale'];
ina['mVscale'] = 1.25
ina['uVscale'] = 2.5
ina['data'] = data
self._inas.append(ina)
def wr_command(self, write_list, read_count=1, wtimeout=100, rtimeout=1000):
"""Write command to logger logic.
This function writes byte command values list to stm, then reads
byte status.
Args:
write_list: list of command byte values [0~255].
read_count: number of status byte values to read.
Interface:
write: [command, data ... ]
read: [status ]
Returns:
bytes read, or None on failure.
"""
debuglog("Spower.wr_command(write_list=[%s] (%d), read_count=%s)" % (
list(bytearray(write_list)), len(write_list), read_count))
# Clean up args from python style to correct types.
write_length = 0
if write_list:
write_length = len(write_list)
if not read_count:
read_count = 0
# Send command to stm32.
if write_list:
cmd = write_list
ret = self._write_ep.write(cmd, wtimeout)
debuglog("RET: %s " % ret)
# Read back response if necessary.
if read_count:
bytesread = self._read_ep.read(512, rtimeout)
debuglog("BYTES: [%s]" % bytesread)
if len(bytesread) != read_count:
pass
debuglog("STATUS: 0x%02x" % int(bytesread[0]))
if read_count == 1:
return bytesread[0]
else:
return bytesread
return None
def clear(self):
"""Clear pending reads on the stm32"""
try:
while True:
ret = self.wr_command("", read_count=512, rtimeout=100, wtimeout=50)
debuglog("Try Clear: read %s" % "success" if ret == 0 else "failure")
except:
pass
def send_reset(self):
"""Reset the power interface on the stm32"""
cmd = struct.pack("<H", self.CMD_RESET)
ret = self.wr_command(cmd, rtimeout=50, wtimeout=50)
debuglog("Command RESET: %s" % "success" if ret == 0 else "failure")
def reset(self):
"""Try resetting the USB interface until success.
Use linear back off strategy when encounter the error with 10ms increment.
Raises:
Exception on failure.
"""
max_reset_retry = 100
for count in range(1, max_reset_retry + 1):
self.clear()
try:
self.send_reset()
return
except Exception as e:
self.clear()
self.clear()
debuglog("TRY %d of %d: %s" % (count, max_reset_retry, e))
time.sleep(count * 0.01)
raise Exception("Power", "Failed to reset")
def stop(self):
"""Stop any active data acquisition."""
cmd = struct.pack("<H", self.CMD_STOP)
ret = self.wr_command(cmd)
debuglog("Command STOP: %s" % "success" if ret == 0 else "failure")
def start(self, integration_us):
"""Start data acquisition.
Args:
integration_us: int, how many us between samples, and
how often the data block must be read.
Returns:
actual sampling interval in ms.
"""
cmd = struct.pack("<HI", self.CMD_START, integration_us)
read = self.wr_command(cmd, read_count=5)
actual_us = 0
if len(read) == 5:
ret, actual_us = struct.unpack("<BI", read)
debuglog("Command START: %s %dus" % (
"success" if ret == 0 else "failure", actual_us))
else:
debuglog("Command START: FAIL")
return actual_us
def add_ina_name(self, name_tuple):
"""Add INA from board config.
Args:
name_tuple: name and type of power rail in board config.
Returns:
True if INA added, False if the INA is not on this board.
Raises:
Exception on unexpected failure.
"""
name, ina_type = name_tuple
for datum in self._brdcfg:
if datum["name"] == name:
channel = int(datum["channel"])
rs = int(float(datum["rs"]) * 1000.)
board = datum["sweetberry"]
if board == self._board:
port, addr = self.CHMAP[channel]
self.add_ina(port, ina_type, addr, 0, rs, data=datum)
return True
else:
return False
raise Exception("Power", "Failed to find INA %s" % name)
def set_time(self, timestamp_us):
"""Set sweetberry time to match host time.
Args:
timestamp_us: host timestmap in us.
"""
# 0x0005 , 8 byte timestamp
cmd = struct.pack("<HQ", self.CMD_SETTIME, timestamp_us)
ret = self.wr_command(cmd)
debuglog("Command SETTIME: %s" % "success" if ret == 0 else "failure")
def add_ina(self, bus, ina_type, addr, extra, resistance, data=None):
"""Add an INA to the data acquisition list.
Args:
bus: which i2c bus the INA is on. Same ordering as Si2c.
ina_type: Ina interface: INA_POWER/BUSV/etc.
addr: 7 bit i2c addr of this INA
extra: extra data for nonstandard configs.
resistance: int, shunt resistance in mOhm
"""
# 0x0002, 1B: bus, 1B:INA type, 1B: INA addr, 1B: extra, 4B: Rs
cmd = struct.pack("<HBBBBI", self.CMD_ADDINA,
bus, ina_type, addr, extra, resistance)
ret = self.wr_command(cmd)
if ret == 0:
if data:
name = data['name']
else:
name = "ina%d_%02x" % (bus, addr)
self.append_ina_struct(name, resistance, bus, addr,
data=data, ina_type=ina_type)
debuglog("Command ADD_INA: %s" % "success" if ret == 0 else "failure")
def report_header_size(self):
"""Helper function to calculate power record header size."""
result = 2
timestamp = 8
return result + timestamp
def report_size(self, ina_count):
"""Helper function to calculate full power record size."""
record = 2
datasize = self.report_header_size() + ina_count * record
# Round to multiple of 4 bytes.
datasize = int(((datasize + 3) / 4) * 4)
return datasize
def read_line(self):
"""Read a line of data from the setup INAs
Returns:
list of dicts of the values read by ina/type tuple, otherwise None.
[{ts:100, (vbat, power):450}, {ts:200, (vbat, power):440}]
"""
try:
expected_bytes = self.report_size(len(self._inas))
cmd = struct.pack("<H", self.CMD_NEXT)
bytesread = self.wr_command(cmd, read_count=expected_bytes)
except usb.core.USBError as e:
print("READ LINE FAILED %s" % e)
return None
if len(bytesread) == 1:
if bytesread[0] != 0x6:
debuglog("READ LINE FAILED bytes: %d ret: %02x" % (
len(bytesread), bytesread[0]))
return None
if len(bytesread) % expected_bytes != 0:
debuglog("READ LINE WARNING: expected %d, got %d" % (
expected_bytes, len(bytesread)))
packet_count = len(bytesread) / expected_bytes
values = []
for i in range(0, packet_count):
start = i * expected_bytes
end = (i + 1) * expected_bytes
record = self.interpret_line(bytesread[start:end])
values.append(record)
return values
def interpret_line(self, data):
"""Interpret a power record from INAs
Args:
data: one single record of bytes.
Output:
stdout of the record in csv format.
Returns:
dict containing name, value of recorded data.
"""
status, size = struct.unpack("<BB", data[0:2])
if len(data) != self.report_size(size):
print("READ LINE FAILED st:%d size:%d expected:%d len:%d" % (
status, size, self.report_size(size), len(data)))
else:
pass
timestamp = struct.unpack("<Q", data[2:10])[0]
debuglog("READ LINE: st:%d size:%d time:%dus" % (status, size, timestamp))
ftimestamp = float(timestamp) / 1000000.
record = {"ts": ftimestamp, "status": status, "berry":self._board}
for i in range(0, size):
idx = self.report_header_size() + 2*i
name = self._inas[i]['name']
name_tuple = (self._inas[i]['name'], self._inas[i]['type'])
raw_val = struct.unpack("<h", data[idx:idx+2])[0]
if self._inas[i]['type'] == Spower.INA_POWER:
val = raw_val * self._inas[i]['uWscale']
elif self._inas[i]['type'] == Spower.INA_BUSV:
val = raw_val * self._inas[i]['mVscale']
elif self._inas[i]['type'] == Spower.INA_CURRENT:
val = raw_val * self._inas[i]['uAscale']
elif self._inas[i]['type'] == Spower.INA_SHUNTV:
val = raw_val * self._inas[i]['uVscale']
debuglog("READ %d %s: %fs: 0x%04x %f" % (i,
name, ftimestamp, raw_val, val))
record[name_tuple] = val
return record
def load_board(self, brdfile):
"""Load a board config.
Args:
brdfile: Filename of a json file decribing the INA wiring of this board.
"""
with open(process_filename(brdfile)) as data_file:
data = json.load(data_file)
#TODO: validate this.
self._brdcfg = data;
if debug:
pprint(data)
class powerlog(object):
"""Power class to log aggregated power.
Usage:
obj = powerlog()
Instance Variables:
_data: a StatsManager object that records sweetberry readings and calculates
statistics.
_pwr[]: Spower objects for individual sweetberries.
"""
def __init__(self, brdfile, cfgfile, serial_a=None, serial_b=None,
sync_date=False, use_ms=False, use_mW=False, print_stats=False,
stats_dir=None, stats_json_dir=None, print_raw_data=True,
raw_data_dir=None):
"""Init the powerlog class and set the variables.
Args:
brdfile: string name of json file containing board layout.
cfgfile: string name of json containing list of rails to read.
serial_a: serial number of sweetberry A.
serial_b: serial number of sweetberry B.
sync_date: report timestamps synced with host datetime.
use_ms: report timestamps in ms rather than us.
use_mW: report power as milliwatts, otherwise default to microwatts.
print_stats: print statistics for sweetberry readings at the end.
stats_dir: directory to save sweetberry readings statistics; if None then
do not save the statistics.
stats_json_dir: directory to save means of sweetberry readings in json
format; if None then do not save the statistics.
print_raw_data: print sweetberry readings raw data in real time, default
is to print.
raw_data_dir: directory to save sweetberry readings raw data; if None then
do not save the raw data.
"""
self._data = StatsManager()
self._pwr = {}
self._use_ms = use_ms
self._use_mW = use_mW
self._print_stats = print_stats
self._stats_dir = stats_dir
self._stats_json_dir = stats_json_dir
self._print_raw_data = print_raw_data
self._raw_data_dir = raw_data_dir
if not serial_a and not serial_b:
self._pwr['A'] = Spower('A')
if serial_a:
self._pwr['A'] = Spower('A', serialname=serial_a)
if serial_b:
self._pwr['B'] = Spower('B', serialname=serial_b)
with open(process_filename(cfgfile)) as data_file:
names = json.load(data_file)
self._names = self.process_scenario(names)
for key in self._pwr:
self._pwr[key].load_board(brdfile)
self._pwr[key].reset()
# Allocate the rails to the appropriate boards.
used_boards = []
for name in self._names:
success = False
for key in self._pwr.keys():
if self._pwr[key].add_ina_name(name):
success = True
if key not in used_boards:
used_boards.append(key)
if not success:
raise Exception("Failed to add %s (maybe missing "
"sweetberry, or bad board file?)" % name)
# Evict unused boards.
for key in self._pwr.keys():
if key not in used_boards:
self._pwr.pop(key)
for key in self._pwr.keys():
if sync_date:
self._pwr[key].set_time(time.time() * 1000000)
else:
self._pwr[key].set_time(0)
def process_scenario(self, name_list):
"""Return list of tuples indicating name and type.
Args:
json originated list of names, or [name, type]
Returns:
list of tuples of (name, type) defaulting to type "POWER"
Raises: exception, invalid INA type.
"""
names = []
for entry in name_list:
if isinstance(entry, list):
name = entry[0]
if entry[1] == "POWER":
type = Spower.INA_POWER
elif entry[1] == "BUSV":
type = Spower.INA_BUSV
elif entry[1] == "CURRENT":
type = Spower.INA_CURRENT
elif entry[1] == "SHUNTV":
type = Spower.INA_SHUNTV
else:
raise Exception("Invalid INA type", "Type of %s [%s] not recognized,"
" try one of POWER, BUSV, CURRENT" % (entry[0], entry[1]))
else:
name = entry
type = Spower.INA_POWER
names.append((name, type))
return names
def start(self, integration_us_request, seconds, sync_speed=.8):
"""Starts sampling.
Args:
integration_us_request: requested interval between sample values.
seconds: time until exit, or None to run until cancel.
sync_speed: A usb request is sent every [.8] * integration_us.
"""
# We will get back the actual integration us.
# It should be the same for all devices.
integration_us = None
for key in self._pwr:
integration_us_new = self._pwr[key].start(integration_us_request)
if integration_us:
if integration_us != integration_us_new:
raise Exception("FAIL",
"Integration on A: %dus != integration on B %dus" % (
integration_us, integration_us_new))
integration_us = integration_us_new
# CSV header
title = "ts:%dus" % integration_us
for name_tuple in self._names:
name, ina_type = name_tuple
if ina_type == Spower.INA_POWER:
unit = "mW" if self._use_mW else "uW"
elif ina_type == Spower.INA_BUSV:
unit = "mV"
elif ina_type == Spower.INA_CURRENT:
unit = "uA"
elif ina_type == Spower.INA_SHUNTV:
unit = "uV"
title += ", %s %s" % (name, unit)
name_type = name + Spower.INA_SUFFIX[ina_type]
self._data.SetUnit(name_type, unit)
title += ", status"
if self._print_raw_data:
logoutput(title)
forever = False
if not seconds:
forever = True
end_time = time.time() + seconds
try:
pending_records = []
while forever or end_time > time.time():
if (integration_us > 5000):
time.sleep((integration_us / 1000000.) * sync_speed)
for key in self._pwr:
records = self._pwr[key].read_line()
if not records:
continue
for record in records:
pending_records.append(record)
pending_records.sort(key=lambda r: r['ts'])
aggregate_record = {"boards": set()}
for record in pending_records:
if record["berry"] not in aggregate_record["boards"]:
for rkey in record.keys():
aggregate_record[rkey] = record[rkey]
aggregate_record["boards"].add(record["berry"])
else:
print("break %s, %s" % (record["berry"],
aggregate_record["boards"]))
break
if aggregate_record["boards"] == set(self._pwr.keys()):
csv = "%f" % aggregate_record["ts"]
for name in self._names:
if name in aggregate_record:
multiplier = 0.001 if (self._use_mW and
name[1]==Spower.INA_POWER) else 1
value = aggregate_record[name] * multiplier
csv += ", %.2f" % value
name_type = name[0] + Spower.INA_SUFFIX[name[1]]
self._data.AddValue(name_type, value)
else:
csv += ", "
csv += ", %d" % aggregate_record["status"]
if self._print_raw_data:
logoutput(csv)
aggregate_record = {"boards": set()}
for r in range(0, len(self._pwr)):
pending_records.pop(0)
except KeyboardInterrupt:
print('\nCTRL+C caught.')
finally:
for key in self._pwr:
self._pwr[key].stop()
self._data.CalculateStats()
if self._print_stats:
self._data.PrintSummary()
save_dir = 'sweetberry%s' % time.time()
if self._stats_dir:
stats_dir = os.path.join(self._stats_dir, save_dir)
self._data.SaveSummary(stats_dir)
if self._stats_json_dir:
stats_json_dir = os.path.join(self._stats_json_dir, save_dir)
self._data.SaveSummaryJSON(stats_json_dir)
if self._raw_data_dir:
raw_data_dir = os.path.join(self._raw_data_dir, save_dir)
self._data.SaveRawData(raw_data_dir)
def main(argv=None):
if argv is None:
argv = sys.argv[1:]
# Command line argument description.
parser = argparse.ArgumentParser(
description="Gather CSV data from sweetberry")
parser.add_argument('-b', '--board', type=str,
help="Board configuration file, eg. my.board", default="")
parser.add_argument('-c', '--config', type=str,
help="Rail config to monitor, eg my.scenario", default="")
parser.add_argument('-A', '--serial', type=str,
help="Serial number of sweetberry A", default="")
parser.add_argument('-B', '--serial_b', type=str,
help="Serial number of sweetberry B", default="")
parser.add_argument('-t', '--integration_us', type=int,
help="Target integration time for samples", default=100000)
parser.add_argument('-s', '--seconds', type=float,
help="Seconds to run capture", default=0.)
parser.add_argument('--date', default=False,
help="Sync logged timestamp to host date", action="store_true")
parser.add_argument('--ms', default=False,
help="Print timestamp as milliseconds", action="store_true")
parser.add_argument('--mW', default=False,
help="Print power as milliwatts, otherwise default to microwatts",
action="store_true")
parser.add_argument('--slow', default=False,
help="Intentionally overflow", action="store_true")
parser.add_argument('--print_stats', default=False, action="store_true",
help="Print statistics for sweetberry readings at the end")
parser.add_argument('--save_stats', type=str, nargs='?',
dest='stats_dir', metavar='STATS_DIR',
const=os.path.dirname(os.path.abspath(__file__)), default=None,
help="Save statistics for sweetberry readings to %(metavar)s if "
"%(metavar)s is specified, %(metavar)s will be created if it does "
"not exist; if %(metavar)s is not specified but the flag is set, "
"stats will be saved to where %(prog)s is located; if this flag is "
"not set, then do not save stats")
parser.add_argument('--save_stats_json', type=str, nargs='?',
dest='stats_json_dir', metavar='STATS_JSON_DIR',
const=os.path.dirname(os.path.abspath(__file__)), default=None,
help="Save means for sweetberry readings in json to %(metavar)s if "
"%(metavar)s is specified, %(metavar)s will be created if it does "
"not exist; if %(metavar)s is not specified but the flag is set, "
"stats will be saved to where %(prog)s is located; if this flag is "
"not set, then do not save stats")
parser.add_argument('--no_print_raw_data',
dest='print_raw_data', default=True, action="store_false",
help="Not print raw sweetberry readings at real time, default is to "
"print")
parser.add_argument('--save_raw_data', type=str, nargs='?',
dest='raw_data_dir', metavar='RAW_DATA_DIR',
const=os.path.dirname(os.path.abspath(__file__)), default=None,
help="Save raw data for sweetberry readings to %(metavar)s if "
"%(metavar)s is specified, %(metavar)s will be created if it does "
"not exist; if %(metavar)s is not specified but the flag is set, "
"raw data will be saved to where %(prog)s is located; if this flag "
"is not set, then do not save raw data")
parser.add_argument('-v', '--verbose', default=False,
help="Very chatty printout", action="store_true")
args = parser.parse_args(argv)
global debug
if args.verbose:
debug = True
integration_us_request = args.integration_us
if not args.board:
raise Exception("Power", "No board file selected, see board.README")
if not args.config:
raise Exception("Power", "No config file selected, see board.README")
brdfile = args.board
cfgfile = args.config
seconds = args.seconds
serial_a = args.serial
serial_b = args.serial_b
sync_date = args.date
use_ms = args.ms
use_mW = args.mW
print_stats = args.print_stats
stats_dir = args.stats_dir
stats_json_dir = args.stats_json_dir
print_raw_data = args.print_raw_data
raw_data_dir = args.raw_data_dir
boards = []
sync_speed = .8
if args.slow:
sync_speed = 1.2
# Set up logging interface.
powerlogger = powerlog(brdfile, cfgfile, serial_a=serial_a, serial_b=serial_b,
sync_date=sync_date, use_ms=use_ms, use_mW=use_mW,
print_stats=print_stats, stats_dir=stats_dir,
stats_json_dir=stats_json_dir,
print_raw_data=print_raw_data,raw_data_dir=raw_data_dir)
# Start logging.
powerlogger.start(integration_us_request, seconds, sync_speed=sync_speed)
if __name__ == "__main__":
main()
|