test/wipy: Add Timer class tests.

1 files changed, 117 insertions, 0 deletions

diff --git a/tests/wipy/timer.py b/tests/wipy/timer.py
new file mode 100644
index 000000000..f62899b47
--- /dev/null
+++ b/tests/wipy/timer.py
@@ -0,0 +1,117 @@
+'''
+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')