X-Git-Url: http://git.rot13.org/?a=blobdiff_plain;f=examples%2Fparts%2Fac_input.c;h=2262c3e104b6d2e3ab680c8e51ec960bb7fa8016;hb=d63e2a190fcc83978ffcead60e2d6db597ed8ecc;hp=75d07180388837bf236a637cc6a2e8f288229d56;hpb=8e195b43da0db4f2e9bd6f56cf68ba91b57676e2;p=simavr

diff --git a/examples/parts/ac_input.c b/examples/parts/ac_input.c
index 75d0718..2262c3e 100644
--- a/examples/parts/ac_input.c
+++ b/examples/parts/ac_input.c
@@ -25,6 +25,9 @@
 #include "sim_time.h"
 #include "ac_input.h"
 
+#define USECS_PER_SECOND (1000 * 1000)
+#define HZ (50)
+
 static avr_cycle_count_t
 switch_auto(
 		struct avr_t * avr,
@@ -34,7 +37,7 @@ switch_auto(
 	ac_input_t * b = (ac_input_t *) param;
 	b->value = !b->value;
 	avr_raise_irq(b->irq + IRQ_AC_OUT, b->value);
-	return when + avr_usec_to_cycles(avr, 100000 / 50);
+	return when + avr_usec_to_cycles(avr, USECS_PER_SECOND / HZ);
 }
 
 static const char * name = ">ac_input";
@@ -44,7 +47,8 @@ void ac_input_init(avr_t *avr, ac_input_t *b)
 	b->irq = avr_alloc_irq(&avr->irq_pool, 0, IRQ_AC_COUNT, &name);
 	b->avr = avr;
 	b->value = 0;
-	avr_cycle_timer_register_usec(avr, 100000 / 50, switch_auto, b);
+	avr_cycle_timer_register_usec(avr, USECS_PER_SECOND / HZ, switch_auto, b);
 	printf("ac_input_init period %duS or %d cycles\n",
-			100000 / 50, (int)avr_usec_to_cycles(avr, 100000 / 50));
+			USECS_PER_SECOND / HZ,
+			(int)avr_usec_to_cycles(avr, USECS_PER_SECOND / HZ));
 }