AI continuous

  1'''
  2AI - AI_continuous.py with asynchronous mode.
  3
  4This example demonstrates the process of obtaining AI data in continuous mode with 8 channels from USBDAQF1AOD.
  5
  6To begin with, it demonstrates the steps to open the AI and configure the AI parameters.
  7Next, it outlines the procedure for reading the streaming AI data.
  8Finally, it concludes by explaining how to close the AI.
  9
 10-------------------------------------------------------------------------------------
 11Please change correct serial number or IP and port number BEFORE you run example code.
 12
 13For other examples please check:
 14    https://github.com/WPC-Systems-Ltd/WPC_Python_driver_release/tree/main/examples
 15See README.md file to get detailed usage of this example.
 16
 17Copyright (c) 2022-2025 WPC Systems Ltd. All rights reserved.
 18'''
 19
 20## WPC
 21from wpcsys import pywpc
 22
 23## Python
 24import asyncio
 25import sys
 26sys.path.insert(0, 'src/')
 27
 28
 29async def main():
 30    ## Get Python driver version
 31    print(f'{pywpc.PKG_FULL_NAME} - Version {pywpc.__version__}')
 32
 33    ## Create device handle
 34    dev = pywpc.USBDAQF1AOD()
 35
 36    ## Connect to device
 37    try:
 38        dev.connect("default")  ## Depend on your device
 39    except Exception as err:
 40        pywpc.printGenericError(err)
 41        ## Release device handle
 42        dev.close()
 43        return
 44
 45    try:
 46        ## Parameters setting
 47        port = 0  ## Depend on your device
 48        mode = 2  ## 0: On demand, 1: N-samples, 2: Continuous
 49        sampling_rate = 200
 50        read_points = 200
 51        read_delay = 0.2  ## [sec]
 52        channel = 8
 53
 54        ## Get firmware model & version
 55        driver_info = await dev.Sys_getDriverInfo_async()
 56        print(f"Model name: {driver_info[0]}, Firmware version: {driver_info[-1]} ")
 57
 58        ## Open AI
 59        err = await dev.AI_open_async(port)
 60        print(f"AI_open_async in port {port}, status: {err}")
 61        
 62        ## Set AI channel
 63        err = await dev.AI_enableChannel_async(port, channel)
 64        print(f"AI_enableChannel_async in port {port}, status: {err}")
 65
 66        ## Set AI acquisition mode to continuous mode (2)
 67        err = await dev.AI_setMode_async(port, mode)
 68        print(f"AI_setMode_async {mode} in port {port}, status: {err}")
 69
 70        ## Set AI sampling rate
 71        err = await dev.AI_setSamplingRate_async(port, sampling_rate)
 72        print(f"AI_setSamplingRate_async {sampling_rate} in port {port}, status: {err}")
 73
 74        ## Open AI streaming
 75        err = await dev.AI_openStreaming_async(port)
 76        print(f"AI_openStreaming_async in port {port}, status: {err}")
 77
 78        ## Start AI streaming
 79        err = await dev.AI_startStreaming_async(port)
 80        print(f"AI_startStreaming_async in port {port}, status: {err}")
 81
 82        ## Wait for acquisition
 83        await asyncio.sleep(1)  ## delay [sec]
 84
 85        ## Close AI streaming
 86        err = await dev.AI_closeStreaming_async(port)
 87        print(f"AI_closeStreaming_async in port {port}, status: {err}")
 88
 89        data_len = 1
 90        while data_len > 0:
 91            ## Read data acquisition
 92            ai_2Dlist = await dev.AI_readStreaming_async(port, read_points, read_delay)
 93            print(f"number of samples = {len(ai_2Dlist)}")
 94
 95            ## Update data len
 96            data_len = len(ai_2Dlist)
 97
 98        ## Close AI
 99        err = await dev.AI_close_async(port)
100        print(f"AI_close_async in port {port}, status: {err}")
101    except Exception as err:
102        pywpc.printGenericError(err)
103
104    finally:
105        ## Disconnect device
106        dev.disconnect()
107
108        ## Release device handle
109        dev.close()
110
111
112def main_for_spyder(*args):
113    if asyncio.get_event_loop().is_running():
114        return asyncio.create_task(main(*args)).result()
115    else:
116        return asyncio.run(main(*args))
117
118
119if __name__ == '__main__':
120    asyncio.run(main())  ## Use terminal
121    # await main()  ## Use Jupyter or IPython(>=7.0)
122    # main_for_spyder()  ## Use Spyder