Analog Devices / Mbed OS EVAL-AD4110

IIO firmware for the AD4110

Dependencies:   tempsensors sdp_k1_sdram

scripts/ad4110_sensor_measurement.py@1:a78dbaa4b05d, 2022-08-01 (annotated)

Committer:
Janani Sunil
Date:
Mon Aug 01 11:09:48 2022 +0530
Revision:
1:a78dbaa4b05d
Parent:
0:6ca37a8f8ba9 
Initial implementation of AD4110 IIO Firmware

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Janani Sunil 0:6ca37a8f8ba9 1 # @file ad4110_sensor_measurement.py
Janani Sunil 0:6ca37a8f8ba9 2 # @brief Sensor Measurement steps for the demo mode configurations in AD4110
Janani Sunil 0:6ca37a8f8ba9 3 #
Janani Sunil 0:6ca37a8f8ba9 4 # Copyright (c) 2022 Analog Devices, Inc.
Janani Sunil 0:6ca37a8f8ba9 5 # All rights reserved.
Janani Sunil 0:6ca37a8f8ba9 6 #
Janani Sunil 0:6ca37a8f8ba9 7 # This software is proprietary to Analog Devices, Inc. and its licensors.
Janani Sunil 0:6ca37a8f8ba9 8 # By using this software you agree to the terms of the associated
Janani Sunil 0:6ca37a8f8ba9 9 # Analog Devices Software License Agreement.
Janani Sunil 0:6ca37a8f8ba9 10 #
Janani Sunil 0:6ca37a8f8ba9 11
Janani Sunil 0:6ca37a8f8ba9 12 import serial
Janani Sunil 0:6ca37a8f8ba9 13 from time import sleep
Janani Sunil 0:6ca37a8f8ba9 14 from pynput import keyboard
Janani Sunil 0:6ca37a8f8ba9 15 from adi.ad4110 import *
Janani Sunil 0:6ca37a8f8ba9 16 from ad4110_xattr import *
Janani Sunil 0:6ca37a8f8ba9 17
Janani Sunil 0:6ca37a8f8ba9 18 # Delays in seconds
Janani Sunil 0:6ca37a8f8ba9 19 short_time = 0.5
Janani Sunil 0:6ca37a8f8ba9 20 long_time = 1
Janani Sunil 0:6ca37a8f8ba9 21
Janani Sunil 0:6ca37a8f8ba9 22 def key_press_event(key):
Janani Sunil 0:6ca37a8f8ba9 23 global key_pressed
Janani Sunil 0:6ca37a8f8ba9 24 key_pressed = True
Janani Sunil 0:6ca37a8f8ba9 25
Janani Sunil 0:6ca37a8f8ba9 26 def init_sensor_measurement():
Janani Sunil 0:6ca37a8f8ba9 27 global device
Janani Sunil 0:6ca37a8f8ba9 28 global demo_config
Janani Sunil 0:6ca37a8f8ba9 29 global listener
Janani Sunil 0:6ca37a8f8ba9 30
Janani Sunil 0:6ca37a8f8ba9 31 ######## User configuration ##########
Janani Sunil 0:6ca37a8f8ba9 32 # Configure the backend for PC to IIOD interface
Janani Sunil 0:6ca37a8f8ba9 33 uri = "serial:COM17,230400" # For UART, baud rate must be same as set in the FW. COM port is physical Or VCOM.
Janani Sunil 0:6ca37a8f8ba9 34 device_name = "ad4110" # Name of the device must be same as set in the FW.
Janani Sunil 0:6ca37a8f8ba9 35 ######################################
Janani Sunil 0:6ca37a8f8ba9 36
Janani Sunil 0:6ca37a8f8ba9 37 # Create an IIO device context
Janani Sunil 0:6ca37a8f8ba9 38 device = ad4110_xattr(uri, device_name)
Janani Sunil 0:6ca37a8f8ba9 39 device._ctx.set_timeout(100000)
Janani Sunil 0:6ca37a8f8ba9 40 device.rx_output_type = "raw"
Janani Sunil 0:6ca37a8f8ba9 41
Janani Sunil 0:6ca37a8f8ba9 42 # Get current user device config from the firmware
Janani Sunil 0:6ca37a8f8ba9 43 demo_config = device.demo_config
Janani Sunil 0:6ca37a8f8ba9 44 print("\r\nDemo Config: {}\r\n".format(demo_config))
Janani Sunil 0:6ca37a8f8ba9 45
Janani Sunil 0:6ca37a8f8ba9 46 listener = keyboard.Listener(on_press=key_press_event)
Janani Sunil 0:6ca37a8f8ba9 47 listener.start()
Janani Sunil 0:6ca37a8f8ba9 48
Janani Sunil 0:6ca37a8f8ba9 49 def perform_sensor_measurement():
Janani Sunil 0:6ca37a8f8ba9 50 global key_pressed
Janani Sunil 0:6ca37a8f8ba9 51
Janani Sunil 0:6ca37a8f8ba9 52 print("\r\n*** Press any key to stop the measurement ***\r\n")
Janani Sunil 0:6ca37a8f8ba9 53 sleep(long_time)
Janani Sunil 0:6ca37a8f8ba9 54
Janani Sunil 0:6ca37a8f8ba9 55 # Print the header
Janani Sunil 0:6ca37a8f8ba9 56 header = ""
Janani Sunil 0:6ca37a8f8ba9 57 for chn in device.channel:
Janani Sunil 0:6ca37a8f8ba9 58 header = header + chn.name + ' '
Janani Sunil 0:6ca37a8f8ba9 59 print(header)
Janani Sunil 0:6ca37a8f8ba9 60
Janani Sunil 0:6ca37a8f8ba9 61 key_pressed = False
Janani Sunil 0:6ca37a8f8ba9 62 while not key_pressed:
Janani Sunil 0:6ca37a8f8ba9 63 result_str = ""
Janani Sunil 0:6ca37a8f8ba9 64 for chn in device.channel:
Janani Sunil 0:6ca37a8f8ba9 65 sleep(short_time)
Janani Sunil 0:6ca37a8f8ba9 66 adc_raw = chn.raw
Janani Sunil 0:6ca37a8f8ba9 67 adc_scale = chn.scale
Janani Sunil 0:6ca37a8f8ba9 68 adc_offset = chn.offset
Janani Sunil 0:6ca37a8f8ba9 69 if (demo_config == 'Voltage'):
Janani Sunil 0:6ca37a8f8ba9 70 actual_voltage = (adc_raw + adc_offset) * adc_scale / 1000
Janani Sunil 0:6ca37a8f8ba9 71 result_str = result_str + str(round(actual_voltage,4)) + 'V '
Janani Sunil 0:6ca37a8f8ba9 72 elif ((demo_config == 'Current') or (demo_config == 'Field Power Supply')):
Janani Sunil 0:6ca37a8f8ba9 73 actual_current = (adc_raw + adc_offset) * adc_scale
Janani Sunil 0:6ca37a8f8ba9 74 result_str = result_str + str(round(actual_current,4)) + 'mA '
Janani Sunil 0:6ca37a8f8ba9 75 elif (demo_config == 'RTD') or (demo_config == 'Thermocouple'):
Janani Sunil 0:6ca37a8f8ba9 76 actual_temperature = (adc_raw * adc_scale) / 1000
Janani Sunil 0:6ca37a8f8ba9 77 result_str = result_str + str(round(actual_temperature,4)) + 'C '
Janani Sunil 0:6ca37a8f8ba9 78 print(result_str)
Janani Sunil 0:6ca37a8f8ba9 79
Janani Sunil 0:6ca37a8f8ba9 80 def exit():
Janani Sunil 0:6ca37a8f8ba9 81 global listener
Janani Sunil 0:6ca37a8f8ba9 82 global device
Janani Sunil 0:6ca37a8f8ba9 83
Janani Sunil 0:6ca37a8f8ba9 84 # Delete the objects
Janani Sunil 0:6ca37a8f8ba9 85 del listener
Janani Sunil 0:6ca37a8f8ba9 86 del device
Janani Sunil 0:6ca37a8f8ba9 87
Janani Sunil 0:6ca37a8f8ba9 88 def main():
Janani Sunil 0:6ca37a8f8ba9 89 init_sensor_measurement()
Janani Sunil 0:6ca37a8f8ba9 90 perform_sensor_measurement()
Janani Sunil 0:6ca37a8f8ba9 91 exit()
Janani Sunil 0:6ca37a8f8ba9 92
Janani Sunil 0:6ca37a8f8ba9 93 if __name__ == "__main__":
Janani Sunil 0:6ca37a8f8ba9 94 main()