test/wipy: Add Timer class tests.

cc3200/mods/pybtimer.c

@@ -252,17 +252,6 @@ STATIC void timer_channel_init (pyb_timer_channel_obj_t *ch) {
         MAP_TimerMatchSet(ch->timer->timer, ch->channel, match);
         MAP_TimerPrescaleMatchSet(ch->timer->timer, ch->channel, match >> 16);
     }
-    // configure the event edge type if we are in such mode
-    else if ((ch->timer->config & 0x0F) == TIMER_CFG_A_CAP_COUNT || (ch->timer->config & 0x0F) == TIMER_CFG_A_CAP_TIME) {
-        uint32_t polarity = TIMER_EVENT_BOTH_EDGES;
-        if (ch->polarity == PYBTIMER_POLARITY_POS) {
-            polarity = TIMER_EVENT_POS_EDGE;
-        }
-        else if (ch->polarity == PYBTIMER_POLARITY_NEG) {
-            polarity = TIMER_EVENT_NEG_EDGE;
-        }
-        MAP_TimerControlEvent(ch->timer->timer, ch->channel, polarity);
-    }
 
 #ifdef DEBUG
     // stall the timer when the processor is halted while debugging
@@ -292,7 +281,7 @@ STATIC void pyb_timer_print(const mp_print_t *print, mp_obj_t self_in, mp_print_
     default:
         break;
     }
-    mp_printf(print, "Timer(%u, mode=Timer.%q)", (tim->id + 1), mode_qst);
+    mp_printf(print, "Timer(%u, mode=Timer.%q)", tim->id, mode_qst);
 }
 
 STATIC mp_obj_t pyb_timer_init_helper(pyb_timer_obj_t *tim, mp_uint_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
@@ -317,7 +306,7 @@ STATIC mp_obj_t pyb_timer_init_helper(pyb_timer_obj_t *tim, mp_uint_t n_args, co
     }
     bool is16bit = (args[1].u_int == 16);
 
-    if (!is16bit && (_mode != TIMER_CFG_A_ONE_SHOT_UP && _mode != TIMER_CFG_A_PERIODIC_UP)) {
+    if (!is16bit && _mode == TIMER_CFG_A_PWM) {
         // 32-bit mode is only available when in free running modes
         goto error;
     }
@@ -544,7 +533,7 @@ STATIC void pyb_timer_channel_print(const mp_print_t *print, mp_obj_t self_in, m
     mp_printf(print, "timer.channel(Timer.%s, %q=%u", ch_id, MP_QSTR_freq, ch->frequency);
 
     uint32_t mode = ch->timer->config & 0xFF;
-    if (mode == TIMER_CFG_A_CAP_COUNT || mode == TIMER_CFG_A_CAP_TIME || mode == TIMER_CFG_A_PWM) {
+    if (mode == TIMER_CFG_A_PWM) {
         mp_printf(print, ", %q=Timer.", MP_QSTR_polarity);
         switch (ch->polarity) {
             case PYBTIMER_POLARITY_POS:
@@ -557,9 +546,7 @@ STATIC void pyb_timer_channel_print(const mp_print_t *print, mp_obj_t self_in, m
                 mp_printf(print, "BOTH");
                 break;
         }
-        if (mode == TIMER_CFG_A_PWM) {
-            mp_printf(print, ", %q=%u.%02u", MP_QSTR_duty_cycle, ch->duty_cycle / 100, ch->duty_cycle % 100);
-        }
+        mp_printf(print, ", %q=%u.%02u", MP_QSTR_duty_cycle, ch->duty_cycle / 100, ch->duty_cycle % 100);
     }
     mp_printf(print, ")");
 }

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')

tests/wipy/timer.py.exp

@@ -0,0 +1,52 @@
+Timer(0, mode=Timer.PERIODIC)
+timer.channel(Timer.A, freq=5)
+timer.channel(Timer.B, freq=5)
+Timer(0, mode=Timer.ONE_SHOT)
+timer.channel(Timer.A, freq=50)
+timer.channel(Timer.B, freq=50)
+Timer(0, mode=Timer.PWM)
+timer.channel(Timer.A, freq=50000, polarity=Timer.POSITIVE, duty_cycle=20.00)
+timer.channel(Timer.B, freq=50000, polarity=Timer.NEGATIVE, duty_cycle=80.00)
+Timer(0, mode=Timer.PWM)
+Timer(1, mode=Timer.PERIODIC)
+timer.channel(Timer.A, freq=5)
+timer.channel(Timer.B, freq=5)
+Timer(1, mode=Timer.ONE_SHOT)
+timer.channel(Timer.A, freq=50)
+timer.channel(Timer.B, freq=50)
+Timer(1, mode=Timer.PWM)
+timer.channel(Timer.A, freq=50000, polarity=Timer.POSITIVE, duty_cycle=20.00)
+timer.channel(Timer.B, freq=50000, polarity=Timer.NEGATIVE, duty_cycle=80.00)
+Timer(1, mode=Timer.PWM)
+Timer(2, mode=Timer.PERIODIC)
+timer.channel(Timer.A, freq=5)
+timer.channel(Timer.B, freq=5)
+Timer(2, mode=Timer.ONE_SHOT)
+timer.channel(Timer.A, freq=50)
+timer.channel(Timer.B, freq=50)
+Timer(2, mode=Timer.PWM)
+timer.channel(Timer.A, freq=50000, polarity=Timer.POSITIVE, duty_cycle=20.00)
+timer.channel(Timer.B, freq=50000, polarity=Timer.NEGATIVE, duty_cycle=80.00)
+Timer(2, mode=Timer.PWM)
+Timer(3, mode=Timer.PERIODIC)
+timer.channel(Timer.A, freq=5)
+timer.channel(Timer.B, freq=5)
+Timer(3, mode=Timer.ONE_SHOT)
+timer.channel(Timer.A, freq=50)
+timer.channel(Timer.B, freq=50)
+Timer(3, mode=Timer.PWM)
+timer.channel(Timer.A, freq=50000, polarity=Timer.POSITIVE, duty_cycle=20.00)
+timer.channel(Timer.B, freq=50000, polarity=Timer.NEGATIVE, duty_cycle=80.00)
+Timer(3, mode=Timer.PWM)
+True
+True
+True
+True
+True
+True
+Timer(0, mode=Timer.ONE_SHOT)
+Exception
+Exception
+Exception
+Exception
+Exception