forked from adafruit/circuitpython
-
Notifications
You must be signed in to change notification settings - Fork 0
Expand file tree
/
Copy pathtimer.py
More file actions
117 lines (98 loc) · 2.53 KB
/
Copy pathtimer.py
File metadata and controls
117 lines (98 loc) · 2.53 KB
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
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
'''
Timer test for the CC3200 based boards.
'''
from machine import Timer
import os
import time
mch = os.uname().machine
if 'LaunchPad' in mch:
pwm_pin = ('GP24')
elif 'WiPy' in mch:
pwm_pin = ('GP24')
else:
raise Exception('Board not supported!')
for i in range(4):
tim = Timer(i, mode=Timer.PERIODIC)
print(tim)
ch = tim.channel(Timer.A, freq=5)
print(ch)
ch = tim.channel(Timer.B, freq=5)
print(ch)
tim = Timer(i, mode=Timer.ONE_SHOT)
print(tim)
ch = tim.channel(Timer.A, freq=50)
print(ch)
ch = tim.channel(Timer.B, freq=50)
print(ch)
tim = Timer(i, mode=Timer.PWM)
print(tim)
ch = tim.channel(Timer.A, freq=50000, duty_cycle=2000, polarity=Timer.POSITIVE)
print(ch)
ch = tim.channel(Timer.B, freq=50000, duty_cycle=8000, polarity=Timer.NEGATIVE)
print(ch)
tim.deinit()
print(tim)
for i in range(4):
tim = Timer(i, mode=Timer.PERIODIC)
tim.deinit()
class TimerTest:
def __init__(self):
self.tim = Timer(0, mode=Timer.PERIODIC)
self.int_count = 0
def timer_isr(self, tim_ch):
self.int_count += 1
timer_test = TimerTest()
ch = timer_test.tim.channel(Timer.A, freq=5)
print(ch.freq() == 5)
ch.irq(handler=timer_test.timer_isr, trigger=Timer.TIMEOUT)
time.sleep_ms(1001)
print(timer_test.int_count == 5)
ch.freq(100)
timer_test.int_count = 0
time.sleep_ms(1001)
print(timer_test.int_count == 100)
ch.freq(1000)
time.sleep_ms(1500)
timer_test.int_count = 0
time.sleep_ms(2000)
print(timer_test.int_count == 2000)
timer_test.tim.deinit()
timer_test.tim.init(mode=Timer.ONE_SHOT)
ch = timer_test.tim.channel(Timer.A, period=100000)
ch.irq(handler=timer_test.timer_isr, trigger=Timer.TIMEOUT)
timer_test.int_count = 0
time.sleep_ms(101)
print(timer_test.int_count == 1)
time.sleep_ms(101)
print(timer_test.int_count == 1)
timer_test.tim.deinit()
print(timer_test.tim)
# 32 bit modes
tim = Timer(0, mode=Timer.PERIODIC, width=32)
ch = tim.channel(Timer.A | Timer.B, period=5000000)
# check for memory leaks...
for i in range(1000):
tim = Timer(0, mode=Timer.PERIODIC)
ch = tim.channel(Timer.A, freq=5)
# next ones must fail
try:
tim = Timer(0, mode=12)
except:
print('Exception')
try:
tim = Timer(4, mode=Timer.ONE_SHOT)
except:
print('Exception')
try:
tim = Timer(0, mode=Timer.PWM, width=32)
except:
print('Exception')
tim = Timer(0, mode=Timer.PWM)
try:
ch = tim.channel(TIMER_A | TIMER_B, freq=10)
except:
print('Exception')
try:
ch = tim.channel(TIMER_A, freq=4)
except:
print('Exception')