1'''
2PWM - PWM_generate.py with synchronous mode.
3
4This example demonstrates how to generate PWM with USBDAQF1RD.
5
6First, you should set frequency and duty cycle so that it can generate proper signal.
7By the way, if you want to check PWM signal, you could connect DI pin with PWM pin.
8
9-------------------------------------------------------------------------------------
10Please change correct serial number or IP and port number BEFORE you run example code.
11
12For other examples please check:
13 https://github.com/WPC-Systems-Ltd/WPC_Python_driver_release/tree/main/examples
14See README.md file to get detailed usage of this example.
15
16Copyright (c) 2022-2024 WPC Systems Ltd. All rights reserved.
17'''
18
19## Python
20import time
21
22## WPC
23
24from wpcsys import pywpc
25
26def main():
27 ## Get Python driver version
28 print(f'{pywpc.PKG_FULL_NAME} - Version {pywpc.__version__}')
29
30 ## Create device handle
31 dev = pywpc.USBDAQF1RD()
32
33 ## Connect to device
34 try:
35 dev.connect("default") ## Depend on your device
36 except Exception as err:
37 pywpc.printGenericError(err)
38 ## Release device handle
39 dev.close()
40 return
41
42 try:
43 ## Parameters setting
44 channel = 0 ## Depend on your device
45 frequency = 100
46 duty_cycle = 50
47 timeout = 3 ## second
48
49 ## Get firmware model & version
50 driver_info = dev.Sys_getDriverInfo(timeout)
51 print("Model name: " + driver_info[0])
52 print("Firmware version: " + driver_info[-1])
53
54 ## Open PWM
55 err = dev.PWM_open(channel, timeout)
56 print(f"PWM_open in channel {channel}, status: {err}")
57
58 ## Set frequency
59 err = dev.PWM_setFrequency(channel, frequency, timeout)
60 print(f"PWM_setFrequency in channel {channel}, status: {err}")
61
62 ## Set duty cycle
63 err = dev.PWM_setDutyCycle(channel, duty_cycle, timeout)
64 print(f"PWM_setDutyCycle in channel {channel}, status: {err}")
65
66 ## Start PWM
67 err = dev.PWM_start(channel, timeout)
68 print(f"PWM_start in channel {channel}, status: {err}")
69
70 ## Wait for seconds for generating signal
71 time.sleep(5) ## delay [s]
72
73 ## Stop PWM
74 err = dev.PWM_stop(channel, timeout)
75 print(f"PWM_stop in channel {channel}, status: {err}")
76
77 ## Close PWM
78 err = dev.PWM_close(channel, timeout)
79 print(f"PWM_close in channel {channel}, status: {err}")
80 except Exception as err:
81 pywpc.printGenericError(err)
82
83 ## Disconnect device
84 dev.disconnect()
85
86 ## Release device handle
87 dev.close()
88
89 return
90
91if __name__ == '__main__':
92 main()