Change altos build process to support per-product compile-time changes

[fw/altos] / src / ao_timer.c

diff --git a/src/ao_timer.c b/src/ao_timer.c
index e81f937d9604096bc3995620a0b17730d55d74c9..d1731475c226eee9992ae00315c333b1877f2285 100644 (file)
--- a/src/ao_timer.c
+++ b/src/ao_timer.c
@@ -36,24 +36,30 @@ ao_delay(uint16_t ticks)
 #define T1_CLOCK_DIVISOR       8       /* 24e6/8 = 3e6 */
 #define T1_SAMPLE_TIME         30000   /* 3e6/30000 = 100 */
 
+#if HAS_ADC
 volatile __data uint8_t        ao_adc_interval = 1;
 volatile __data uint8_t        ao_adc_count;
+#endif
 
 void ao_timer_isr(void) interrupt 9
 {
        ++ao_tick_count;
+#if HAS_ADC
        if (++ao_adc_count == ao_adc_interval) {
                ao_adc_count = 0;
                ao_adc_poll();
        }
+#endif
 }
 
+#if HAS_ADC
 void
 ao_timer_set_adc_interval(uint8_t interval) __critical
 {
        ao_adc_interval = interval;
        ao_adc_count = 0;
 }
+#endif
 
 void
 ao_timer_init(void)