from pprint import pp from driver.kirdy_async import Kirdy, FilterConfig import asyncio import signal """ Enter Device Firmware Upgrade(Dfu) mode Please see README.md for flash instructions. """ async def enter_dfu_mode(kirdy: Kirdy): print(await kirdy.device.dfu()) await kirdy.end_session() exit() """ Configure Kirdy to actively report status Press Ctrl + C to exit active report mode """ async def active_report(kirdy: Kirdy): class SignalHandler: def __init__(self): signal.signal(signal.SIGINT, self.exit_gracefully) signal.signal(signal.SIGTERM, self.exit_gracefully) def exit_gracefully(self, signum, frame): kirdy.stop_report_mode() signal_handler = SignalHandler() async for data in kirdy.report_mode(): pp(data) """ Configure Kirdy network and board specific transconductance settings. These configs are saved to flash immediately after command is processed. """ async def device_cfg(kirdy: Kirdy): # Kirdy rev0_3's gain and transconductance varies between boards to maximize the # PD current range resolution. await kirdy.device.set_pd_mon_fin_gain(1.0) await kirdy.device.set_pd_mon_transconductance(1/1000.0) # Network Settings will be updated on next reboot. await kirdy.device.set_ip_settings( addr="192.168.1.128", port=1337, prefix_len=24, gateway="192.168.1.1" ) # Hard reset Kirdy. await kirdy.device.hard_reset() await kirdy.end_session() exit() """ Control and config laser diode and thermostat parameters. """ async def ld_thermostat_cfg(kirdy: Kirdy): # Load the laser diode and thermostat settings from flash await kirdy.device.restore_settings_from_flash() # Power off the laser diode and thermostat and clear alarm (if any) await kirdy.laser.set_power_on(False) await kirdy.laser.clear_alarm() await kirdy.thermostat.set_power_on(False) await kirdy.thermostat.clear_alarm() # Set the laser diode terminals not to be shorted await kirdy.laser.set_ld_terms_short(False) # Do not power up the laser & thermostat during initial startup await kirdy.laser.set_default_pwr_on(False) await kirdy.thermostat.set_default_pwr_on(False) # The laser diode output current range is bounded by this software limit setting await kirdy.laser.set_i(0) await kirdy.laser.set_i_soft_limit(30.0 / 1000) # Configure the laser diode output power limit and photodiode parameters # Exceeding the measured power limit triggers overpower protection alarm. # The laser diode power will be turned off while the thermostat power remains unchanged. await kirdy.laser.set_ld_pwr_limit(0.0) await kirdy.laser.set_pd_mon_dark_current(0.0) await kirdy.laser.set_pd_mon_responsitivity(0.0) # Configure the thermostat NTC thermistor parameters. await kirdy.thermostat.set_sh_r0(10.0 * 1000) await kirdy.thermostat.set_sh_t0(25) await kirdy.thermostat.set_sh_beta(3900) # Configure the thermostat output limits. # The actual output current is limited by the hardware limit set below. await kirdy.thermostat.set_tec_max_cooling_i(1.0) await kirdy.thermostat.set_tec_max_heating_i(1.0) await kirdy.thermostat.set_tec_max_v(4.0) # Configure the thermostat temperature monitor limit. # Exceeding the limit will trigger over temperature protection alarm. # The laser diode and thermostat power will be turned off. await kirdy.thermostat.set_temp_mon_upper_limit(70) await kirdy.thermostat.set_temp_mon_lower_limit(0) # Configure the thermostat PID related parameter. # You can configure the PID parameter with the autotune tool. # Here provides an example if it is configured manually. await kirdy.thermostat.set_temperature_setpoint(25) await kirdy.thermostat.set_pid_kp(0.15668282198105507) await kirdy.thermostat.set_pid_ki(0.002135962407793784) await kirdy.thermostat.set_pid_kd(0.829254515277143) await kirdy.thermostat.set_pid_output_max(1.0) await kirdy.thermostat.set_pid_output_min(-1.0) # Configure the thermostat ADC Filter Setting / PID Update Rate / Report Rate. # The ADC sampling rate determines the report and pid update rate. # The chosen filter and sampling rate affects the noise of the readings. # For details, please refer to the AD7172 datasheet. await kirdy.thermostat.config_temp_adc_filter(FilterConfig.Sinc5Sinc1With50hz60HzRejection.f16sps) # Configure thermostat to run in PID control mode await kirdy.thermostat.set_pid_control_mode() # When control mode is switched from PID to constant current(CC) control mode, # the thermostat keeps its instantaneous output current unchanged. # Thermostat output current should only be set if it is in CC control mode # or the value set will not be overwritten by PID output. await kirdy.thermostat.set_constant_current_control_mode() await kirdy.thermostat.set_tec_i_out(0.0) # Save the above settings configured into the flash await kirdy.device.save_current_settings_to_flash() # Power on the laser diode and thermostat await kirdy.laser.set_power_on(True) await kirdy.thermostat.set_power_on(True) pp(await kirdy.device.get_settings_summary()) pp(await kirdy.device.get_status_report()) async def main(): kirdy = Kirdy() await kirdy.start_session(host='192.168.1.128', port=1337, timeout=0.25) # await ld_thermostat_cfg(kirdy) # await active_report(kirdy) # await device_cfg(kirdy) await enter_dfu_mode(kirdy) await kirdy.end_session() if __name__ == "__main__": asyncio.run(main())