From f3f25a1cec7d2a034aa544569cfd23bea1a996c5 Mon Sep 17 00:00:00 2001 From: Keith Packard Date: Sun, 12 Apr 2009 23:53:55 -0700 Subject: Add beep/led support. Support our P2_0 connected buzzer, and formalize LED output support. Signed-off-by: Keith Packard --- ao_test.c | 34 ++++++++++++++++++++++++---------- 1 file changed, 24 insertions(+), 10 deletions(-) (limited to 'ao_test.c') diff --git a/ao_test.c b/ao_test.c index 05245359..9a8adc3d 100644 --- a/ao_test.c +++ b/ao_test.c @@ -20,6 +20,7 @@ struct ao_task __xdata blink_0_task; struct ao_task __xdata blink_1_task; struct ao_task __xdata wakeup_task; +struct ao_task __xdata beep_task; void delay(int n) __reentrant { @@ -34,8 +35,13 @@ static __xdata uint8_t blink_chan; void blink_0(void) { + uint8_t b = 0; for (;;) { - P1 ^= 1; + b = 1 - b; + if (b) + ao_led_on(AO_LED_GREEN); + else + ao_led_off(AO_LED_GREEN); ao_sleep(&blink_chan); } } @@ -49,9 +55,9 @@ blink_1(void) ao_sleep(&ao_adc_ring); ao_adc_get(&adc); if (adc.accel < 15900) - P1_1 = 1; + ao_led_on(AO_LED_RED); else - P1_1 = 0; + ao_led_off(AO_LED_RED); } } @@ -59,11 +65,24 @@ void wakeup(void) { for (;;) { - ao_delay(10); + ao_delay(AO_MS_TO_TICKS(100)); ao_wakeup(&blink_chan); } } +void +beep(void) +{ + static struct ao_adc adc; + + for (;;) { + ao_delay(AO_SEC_TO_TICKS(1)); + ao_adc_get(&adc); + if (adc.temp > 7400) + ao_beep_for(AO_BEEP_LOW, AO_MS_TO_TICKS(50)); + } +} + void main(void) { @@ -71,14 +90,9 @@ main(void) while (!(SLEEP & SLEEP_XOSC_STB)) ; - /* Set p1_1 and p1_0 to output */ - P1DIR = 0x03; - - ao_adc_init(); - ao_timer_init(); - ao_add_task(&blink_0_task, blink_0); ao_add_task(&blink_1_task, blink_1); ao_add_task(&wakeup_task, wakeup); + ao_add_task(&beep_task, beep); ao_start_scheduler(); } -- cgit v1.2.3