1
2'''
3AI - AI_continuous_multi_slot.py with asynchronous mode.
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) 2022-2025 WPC Systems Ltd. All rights reserved.
33'''
34
35## WPC
36from wpcsys import pywpc
37
38## Python
39import asyncio
40import sys
41sys.path.insert(0, 'src/')
42
43
44async def main():
45 ## Get Python driver version
46 print(f'{pywpc.PKG_FULL_NAME} - Version {pywpc.__version__}')
47
48 ## Create device handle
49 dev = pywpc.STEM()
50
51 ## Connect to device
52 try:
53 dev.connect("192.168.1.110") ## Depend on your device
54 except Exception as err:
55 pywpc.printGenericError(err)
56 ## Release device handle
57 dev.close()
58 return
59
60 try:
61 ## Parameters setting
62 slot_list = [1, 2] ## Connect AIO module to slot
63 mode = 2 ## 0: On demand, 1: N-samples, 2: Continuous
64 sampling_rate = 200
65 read_points = 200
66 read_delay = 0.2 ## [sec]
67 chip_select = [0, 1]
68
69 ## Get firmware model & version
70 driver_info = await dev.Sys_getDriverInfo_async()
71 print(f"Model name: {driver_info[0]}, Firmware version: {driver_info[-1]} ")
72
73 for slot in slot_list:
74 ## Get slot mode
75 slot_mode = await dev.Sys_getMode_async(slot)
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 = await dev.Sys_setAIOMode_async(slot)
81 print(f"Sys_setAIOMode_async in slot {slot}, status: {err}")
82
83 ## Get slot mode
84 slot_mode = await dev.Sys_getMode_async(slot)
85 print("Slot mode:", slot_mode)
86
87 ## Open AI
88 err = await dev.AI_open_async(slot)
89 print(f"AI_open_async in slot {slot}, status: {err}")
90
91 ## Enable CS
92 err = await dev.AI_enableCS_async(slot, chip_select)
93 print(f"AI_enableCS_async in slot {slot}, status: {err}")
94
95 ## Set AI acquisition mode to continuous mode (2)
96 err = await dev.AI_setMode_async(slot, mode)
97 print(f"AI_setMode_async {mode} in slot {slot}, status: {err}")
98
99 ## Set AI sampling rate
100 err = await dev.AI_setSamplingRate_async(slot, sampling_rate)
101 print(f"AI_setSamplingRate_async {sampling_rate} in slot {slot}, status: {err}")
102
103 ## Open AI streaming
104 err = await dev.AI_openStreaming_async(slot)
105 print(f"AI_openStreaming_async in slot {slot}, status: {err}")
106
107 ## Start AI streaming
108 err = await dev.AI_startStreaming_async(slot)
109 print(f"AI_startStreaming_async in slot {slot}, status: {err}")
110
111 ## Wait for acquisition
112 await asyncio.sleep(1) ## delay [sec]
113
114 data_len = 1
115 while data_len > 0:
116 for slot in slot_list:
117 ## Read data acquisition
118 ai_2Dlist = await dev.AI_readStreaming_async(slot, read_points, read_delay)
119 print(f"Slot{slot}: data len {len(ai_2Dlist)}")
120
121 ## Update data len and counter
122 data_len = len(ai_2Dlist)
123
124 except Exception as err:
125 pywpc.printGenericError(err)
126 except KeyboardInterrupt:
127 print("Press keyboard")
128 finally:
129 for slot in slot_list:
130 ## Close AI streaming
131 err = await dev.AI_closeStreaming_async(slot)
132 print(f"AI_closeStreaming_async in slot {slot}, status: {err}")
133
134 ## Close AI
135 err = await dev.AI_close_async(slot)
136 print(f"AI_close_async in slot {slot}, status: {err}")
137
138 ## Disconnect device
139 dev.disconnect()
140
141 ## Release device handle
142 dev.close()
143
144
145def main_for_spyder(*args):
146 if asyncio.get_event_loop().is_running():
147 return asyncio.create_task(main(*args)).result()
148 else:
149 return asyncio.run(main(*args))
150
151
152if __name__ == '__main__':
153 asyncio.run(main()) ## Use terminal
154 # await main() ## Use Jupyter or IPython(>=7.0)
155 # main_for_spyder() ## Use Spyder
156