python4penguin/midniteTimeConv.py at master · clarkj/python4penguin · GitHub

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
#!/usr/bin/python
#
# @brief convert MidNite solar modbus registers for time to ISO860 date format.
#
# produce iso date from register values
# example ISO 8601 date format ISODate("2014-09-17T23:25:56.314Z")
# @see MidNite Solar MODBUS Network Spec. Rev C.4 --- Dec 9, 2013
# http://www.midnitesolar.com/pdfs/classic_register_map_Rev-C5-December-8-2013.pdf
# document later

import datetime

class MidniteTimeConv:

  def __init__(self):
    self.deviceTime = 0

  def setRegs(**refDict):
    CTime0r0 = refDict["CTime0r0"]
    CTime0r1 = refDict["CTime0r1"]
    CTime1r0 = refDict["CTime1r0"]
    CTime1r1 = refDict["CTime1r1"]
    CTime2 = refDict["CTime2"]
    #self.getTime()

  def getTime():
    #
    # | Register  | R/W Name| Conversion                     |                  Notes
    # | 4214 4215 | R       | CTIME0 ([4215] << 16) + [4214] | (possibly atomic op) Consolidated Time Registers See Table 4214-1
    # Table 4214-1 Consolidated Time Registers CTime0r0 a/b
    # Name Value Description
    # BITS 5:0 0to59 Seconds Seconds value in the range of 0 to 59
    # BITS 7:6 RESERVED RESERVED
    secMask=0x3f
    # secShift=0
    # sec   = (CTime0r0 >> secShift) & secMask
    sec = CTime0r0 & secMask
    # BITS 13:8 0to59 Minutes value in the range of 0 to 59
    # BITS 15:14 RESERVED RESERVED
    minsMask=0x3f
    minsShift=8
    mins  = (CTime0r0 >> minsShift) & minsMask
    # BITS 20:16 0to23 Hours value in the range of 0 to 23
    # BITS 23:21 RESERVED RESERVED
    hrsMask=0x0f
    hrsShift=0
    hrs  = CTime0r1 & hrsMask
    # BITS 36:24 0to6 Day Of Week Day of week value in the range of 0 to 6
    # BITS 31:27 RESERVED RESERVED
    dayOfWeekMask = 0x0f
    dayOfWeekShift = 0
    dayOfWeek  = CTime0r1 & dayOfWeekMask

    # Table 4216-1 Consolidated Time Registers 1  Ctime1 r0/r1
    #  Name Value Description
    # BITS 4:0 1to28,29,39,31 Day of month value in the range of 1 to 28, 29, 30, or 31(depending on the month and whether it is a leap year)
    # BITS 7:5 RESERVED RESERVED
    dayMask = 0x1f
    dayShift = 0
    day = CTime1r0 & dayMask

    # BITS 11:8 1to12 Month value in the range of 1 to 12
    # BITS 15:12 RESERVED RESERVED
    monthMask = 0x0f
    monthShift = 8
    month = (CTime1r0 >> monthShift) & monthMask

    # BITS 27:16 0 to 4095 Year value in the range of 0 to 4095
    # BITS 31:28 RESERVED RESERVED
    yearMask = 0x0fff
    yearShift = 0
    year = CTime1r1 & yearMask

    # Table 4218-1 ConsolidatedTimeRegister2(ReadOnlyfromClassic--Normally,MNGPwillClassictimefromitsbatterybackedRTC through file transfer)
    # Name Value Description
    # BITS 11:0 1to366* Day of year value in the range of 1 to 365 * (366 for leap years)
    # BITS 31:12 RESERVED RESERVED

    dayOfYearMask = 0x0fff
    dayOfYearShift = 0
    dayOfYear = CTime2 & dayOfYearMask

    #String values attempt to hand format BUT doesn't account for zero prefixes
    # tval  = "T"
    # zval  = "Z"
    # colon=":"
    # dash="-"
    # # example ISO860 date format ISODate("2014-09-17T23:25:56.314Z")
    # isoval = str(year)+dash+str(month)+dash+str(day)+tval
    # isoval += str(hr)+colon+str(mins)+colon+str(sec)+zval
    # print isoval

    # use library to proprly format ISO860 date
    d = datetime.datetime(year, month, day, hrs, mins, sec)
    format = "%Y-%m-%dT%H:%M:%SZ"

    today = datetime.datetime.today()
    print 'today ISO datetime default  :', today

    self.deviceTime = d.strftime(format)

    print 'ctime utc assume appended Z strptime iso-Z:', d.strftime(format)
    #print "assume utc time with appended Z"
    #print '{%Y-%m-%dT%H:%M:%SZ}'.format(d)
    #'{:%Y-%m-%d %H:%M:%S}'.format(d)
    # format = ":%Y-%m-%dT%H:%M:%S.0-07:00"
    # print "assume offset of PST but does not account for daylight savings time"
    # #print "{:%Y-%m-%dT%H:%M:%S.0-07:00}".format(d)
    # print  d.strftime(format)

    return self.deviceTime

  def setTestData():
    # SAMPLE DATA
    # example:
    # CTime0r1,1044  == 0x0414 # CTime0r0,13066 == 0x330A
    # dayofweek=0x04 hr=0x14 min=0x33 sec=0x0A
    #
    CTime0r0 = 13066
    CTime0r1 = 1044

    # CTime1r0,1556  == 0x614
    # CTime1r1,2016  == 0x800
    # year=0x800 month=0x6 day=0x14
    CTime1r0 = 1556
    CTime1r1 = 2016

    # CTime2a,463,0x1CF
    # dayofyear=0x1CF (463 days out of 365, seems odd since jan1)
    CTime2 = 463
    # 4 byte registers
    # CTime0r0/b 4214, 4215
    # CTime1r0/b 4216, 4217
    # Ctime2    4218
    #