counter.py
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1 '''
2  Copyright (C) 2019 Moxa Inc. All rights reserved.
3  SPDX-License-Identifier: Apache-2.0
4 
5  Counter Python Sample Application
6 
7  Date Author Comment
8  2019-02-11 William Chang Created it.
9 '''
10 
11 
19 
20 from ioThinx_4530 import ioThinx_4530_API
21 import argparse
22 
23 DI_MODE_COUNTER = 1
24 CNT_TRIGGER_BOTH = 2
25 
26 
27 def main():
28  parser = argparse.ArgumentParser(description="Counter sample program.")
29  parser.add_argument("-s", "--slot", dest="di_slot", type=int, default=11)
30  parser.add_argument("-c", "--channel_start", dest="counter_channel_start", type=int, default=0)
31  parser.add_argument("-n", "--channel_count", dest="counter_channel_count", type=int, default=2)
32  args = parser.parse_args()
33 
34  di_slot = args.di_slot
35  counter_channel_start = args.counter_channel_start
36  counter_channel_count = args.counter_channel_count
37  print("DI slot = {}".format(di_slot))
38  print("Counter start channel = {}".format(counter_channel_start))
39  print("Counter channel count = {}".format(counter_channel_count))
40 
41  # initialize ioThinx I/O
42  device = ioThinx_4530_API.ioThinx_4530_API()
43 
44  # temporarily set config
45  di_modes = [DI_MODE_COUNTER] * counter_channel_count
46  device.ioThinx_DI_Config_SetModes(di_slot, counter_channel_start, counter_channel_count, di_modes)
47 
48  counter_triggers = [CNT_TRIGGER_BOTH] * counter_channel_count
49  device.ioThinx_DI_Config_SetCntTriggers(di_slot, counter_channel_start, counter_channel_count, counter_triggers)
50  counter_values = [0] * counter_channel_count
51  device.ioThinx_DI_Config_SetCntValues(di_slot, counter_channel_start, counter_channel_count, counter_values)
52 
53  # reload config
54  device.ioThinx_IO_Config_Reload()
55 
56  # start counter
57  counter_start = [0] * 4
58  for i in range(counter_channel_start, counter_channel_start + counter_channel_count):
59  counter_start[i] = 1
60  device.ioThinx_DI_SetCntStarts(di_slot, counter_start)
61 
62  # get value
63  while True:
64  counter_values = device.ioThinx_DI_GetCntValues(di_slot, counter_channel_start, counter_channel_count)
65  for i in range(counter_channel_count):
66  print("[ {}:{}] counter = {}".format(di_slot, counter_channel_start + i, counter_values[i]))
67 
68  if input("Press 'q' to exit. other keys to continue") == 'q':
69  break
70 
71 
72 if __name__ == '__main__':
73  main()
def main()
Definition: counter.py:27
char const int const cJSON_bool format
Definition: cJSON.h:161