1
2'''
3AI - AI_continuous_multi_slot.py.
4
5This example demonstrates the process of obtaining AI data in continuous mode with multi slot from STEM.
6
7To begin with, it demonstrates the steps to open the AI and configure the AI parameters.
8Next, it outlines the procedure for reading the streaming AI data.
9Finally, it concludes by explaining how to close the AI.
10
11Please invoke the function `Sys_setAIOMode_async`and `AI_enableCS_async`.
12Example: AI_enableCS_async is {0, 2}
13Subsequently, the returned value of AI_readOnDemand_async and AI_readStreaming_async will be displayed as follows.
14data:
15 CH0, CH1, CH2, CH3, CH4, CH5, CH6, CH7, CH0, CH1, CH2, CH3, CH4, CH5, CH6, CH7
16 | | |
17 |---------------- CS0-----------------|---------------- CS2------------------|
18[sample0]
19[sample1]
20 .
21 .
22 .
23[sampleN]
24
25-------------------------------------------------------------------------------------
26Please change correct serial number or IP and port number BEFORE you run example code.
27
28For other examples please check:
29 https://github.com/WPC-Systems-Ltd/WPC_Python_driver_release/tree/main/examples
30See README.md file to get detailed usage of this example.
31
32Copyright (c) 2022-2024 WPC Systems Ltd. All rights reserved.
33'''
34
35## Python
36import time
37
38## WPC
39
40from wpcsys import pywpc
41
42def main():
43 ## Get Python driver version
44 print(f'{pywpc.PKG_FULL_NAME} - Version {pywpc.__version__}')
45
46 ## Create device handle
47 dev = pywpc.STEM()
48
49 ## Connect to device
50 try:
51 dev.connect("192.168.1.110") ## Depend on your device
52 except Exception as err:
53 pywpc.printGenericError(err)
54 ## Release device handle
55 dev.close()
56 return
57
58 try:
59 ## Parameters setting
60 slot_list = [1, 2] ## Connect AIO module to slot
61 chip_select = [0, 1]
62 mode = 2 ## 0 : On demand, 1 : N-samples, 2 : Continuous.
63 sampling_rate = 200
64 read_points = 200
65 read_delay = 2 ## second
66 timeout = 3 ## second
67
68 ## Get firmware model & version
69 driver_info = dev.Sys_getDriverInfo(timeout)
70 print("Model name: " + driver_info[0])
71 print("Firmware version: " + driver_info[-1])
72
73 for slot in slot_list:
74 ## Get slot mode
75 slot_mode = dev.Sys_getMode(slot, timeout)
76 print("Slot mode:", slot_mode)
77
78 ## If the slot mode is not set to "AIO", set the slot mode to "AIO"
79 if slot_mode != "AIO":
80 err = dev.Sys_setAIOMode(slot, timeout)
81 print(f"Sys_setAIOMod in slot {slot}, status: {err}")
82
83 ## Get slot mode
84 slot_mode = dev.Sys_getMode(slot, timeout)
85 print("Slot mode:", slot_mode)
86
87 ## Open AI
88 err = dev.AI_open(slot, timeout)
89 print(f"AI_open in slot {slot}, status: {err}")
90
91 ## Enable CS
92 err = dev.AI_enableCS(slot, chip_select, timeout)
93 print(f"AI_enableCS in slot {slot}, status: {err}")
94
95 ## Set AI acquisition mode to continuous mode (2)
96 err = dev.AI_setMode(slot, mode, timeout)
97 print(f"AI_setMode {mode} in slot {slot}, status: {err}")
98
99 ## Set AI sampling rate
100 err = dev.AI_setSamplingRate(slot, sampling_rate, timeout)
101 print(f"AI_setSamplingRate {sampling_rate} in slot {slot}, status: {err}")
102
103 ## Open AI streaming
104 err = dev.AI_openStreaming(slot, timeout)
105 print(f"AI_openStreaming in slot {slot}, status: {err}")
106
107 ## Start AI streaming
108 err = dev.AI_startStreaming(slot, timeout)
109 print(f"AI_startStreaming in slot {slot}, status: {err}")
110
111 data_len = 1
112 while data_len > 0:
113 for slot in slot_list:
114 ## Read data acquisition
115 ai_2Dlist = dev.AI_readStreaming(slot, read_points, read_delay)
116 print(f"Slot{slot}: data len {len(ai_2Dlist)}" )
117
118 ## Update data len and counter
119 data_len = len(ai_2Dlist)
120
121 except Exception as err:
122 pywpc.printGenericError(err)
123 except KeyboardInterrupt:
124 print("Press keyboard")
125 finally:
126 for slot in slot_list:
127 ## Close AI streaming
128 err = dev.AI_closeStreaming(slot, timeout)
129 print(f"AI_closeStreaming in slot {slot}, status: {err}")
130
131 ## Close AI
132 err = dev.AI_close(slot, timeout)
133 print(f"AI_close in slot {slot}, status: {err}")
134
135 ## Disconnect device
136 dev.disconnect()
137
138 ## Release device handle
139 dev.close()
140
141 return
142
143if __name__ == '__main__':
144 main()