Add beep/led support.

[fw/altos] / ao_adc.c

diff --git a/ao_adc.c b/ao_adc.c
index d45e10b1f7de252000ff0ad9066f67bd879ced0a..f043b5a133a3d1b099e9793bcd02124ec14e9111 100644 (file)
--- a/ao_adc.c
+++ b/ao_adc.c
@@ -18,8 +18,8 @@
 
 #include "ao.h"
 
-__xdata struct ao_adc  ao_adc_ring[ADC_RING];
-__data uint8_t         ao_adc_head;
+volatile __xdata struct ao_adc ao_adc_ring[ADC_RING];
+volatile __data uint8_t                ao_adc_head;
 
 void ao_adc_isr(void) interrupt 1
 {