AIO all channels loopback

  1'''
  2AIO - AIO_all_channels_loopback.py with synchronous mode.
  3
  4This example demonstrates the process of AIO loopback across all channels of USBDAQF1AOD.
  5It involves using AO pins to send signals and AI pins to receive signals on a single device, commonly referred to as "loopback".
  6The AI and AO pins are connected using a wire.
  7
  8Initially, the example demonstrates the steps required to open the AI and AO.
  9Next, it reads AI data and displays its corresponding values.
 10Following that, it writes digital signals to the AO pins and reads AI on-demand data once again.
 11Lastly, it closes the AO and AI ports.
 12
 13-------------------------------------------------------------------------------------
 14Please change correct serial number or IP and port number BEFORE you run example code.
 15
 16For other examples please check:
 17    https://github.com/WPC-Systems-Ltd/WPC_Python_driver_release/tree/main/examples
 18See README.md file to get detailed usage of this example.
 19
 20Copyright (c) 2022-2024 WPC Systems Ltd. All rights reserved.
 21'''
 22
 23## Python
 24import time
 25
 26## WPC
 27
 28from wpcsys import pywpc
 29
 30
 31def main():
 32    ## Get Python driver version
 33    print(f'{pywpc.PKG_FULL_NAME} - Version {pywpc.__version__}')
 34
 35    ## Create device handle
 36    dev = pywpc.USBDAQF1AOD()
 37
 38    ## Connect to device
 39    try:
 40        dev.connect("default") ## Depend on your device
 41    except Exception as err:
 42        pywpc.printGenericError(err)
 43        ## Release device handle
 44        dev.close()
 45        return
 46
 47    try:
 48        ## Parameters setting
 49        port = 0 ## Depend on your device
 50        ao_value_list = [0, 0.5, 1, 1.5, 2, 2.5, 3, 3.5]
 51        timeout = 3 ## second
 52        channel = 8
 53
 54        ## Get firmware model & version
 55        driver_info = dev.Sys_getDriverInfo(timeout)
 56        print("Model name: " + driver_info[0])
 57        print("Firmware version: " + driver_info[-1])
 58
 59        ## Open AI
 60        err = dev.AI_open(port, timeout)
 61        print(f"AI_open in port {port}, status: {err}")
 62        
 63
 64        ## Set AI channel
 65        err = dev.AI_enableChannel(port, channel, timeout)
 66        print(f"AI_enableChannel in port {port}, status: {err}")
 67
 68        ## Open AO
 69        err = dev.AO_open(port, timeout)
 70        print(f"AO_open in port {port}, status: {err}")
 71
 72        ## Read data acquisition
 73        ai_list = dev.AI_readOnDemand(port, timeout)
 74        print(f"AI data in port {port}: {ai_list}")
 75
 76        ## Write AO value simultaneously
 77        err = dev.AO_writeAllChannels(port, ao_value_list, timeout)
 78        print(f"In port {port} the AO value is {ao_value_list}, status: {err}")
 79
 80        ## Read data acquisition
 81        ai_list = dev.AI_readOnDemand(port, timeout)
 82        print(f"AI data in port {port}: {ai_list}")
 83
 84        ## Close AI
 85        err = dev.AI_close(port, timeout)
 86        print(f"AI_close in port {port}, status: {err}")
 87
 88        ## Close AO
 89        err = dev.AO_close(port, timeout)
 90        print(f"AO_close in port {port}, status: {err}")
 91    except Exception as err:
 92        pywpc.printGenericError(err)
 93
 94    ## Disconnect device
 95    dev.disconnect()
 96
 97    ## Release device handle
 98    dev.close()
 99
100    return
101
102if __name__ == '__main__':
103    main()