AI continuous multi slot

  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