blob: 4add88ec6a7eb7fac03824228b51ed41fc438389 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
|
# check callback feature of the timer class
import sys
import time
from pyb import Timer
if "STM32WB" in sys.implementation._machine:
tim_extra_id = 16
else:
tim_extra_id = 4
# callback function that disables the callback when called
def cb1(t):
print("cb1")
t.callback(None)
# callback function that disables the timer when called
def cb2(t):
print("cb2")
t.deinit()
# callback where cb4 closes over cb3.y
def cb3(x):
y = x
def cb4(t):
print("cb4", y)
t.callback(None)
return cb4
# create a timer with a callback, using callback(None) to stop
tim = Timer(1, freq=100, callback=cb1)
time.sleep_ms(5)
print("before cb1")
time.sleep_ms(15)
# create a timer with a callback, using deinit to stop
tim = Timer(2, freq=100, callback=cb2)
time.sleep_ms(5)
print("before cb2")
time.sleep_ms(15)
# create a timer, then set the freq, then set the callback
tim = Timer(tim_extra_id)
tim.init(freq=100)
tim.callback(cb1)
time.sleep_ms(5)
print("before cb1")
time.sleep_ms(15)
# test callback with a closure
tim.init(freq=100)
tim.callback(cb3(3))
time.sleep_ms(5)
print("before cb4")
time.sleep_ms(15)
|
