altos/test: Add dependencies in the Makefile for ao_flight_test

[fw/altos] / src / ao.h

diff --git a/src/ao.h b/src/ao.h
index abac22a31e619322b644e49264022c52c3d63c40..cef20e61731e869a5a3a517d7a2186cf9fa5c694 100644 (file)
--- a/src/ao.h
+++ b/src/ao.h
@@ -163,6 +163,11 @@ struct ao_adc {
 #endif
 
 #if HAS_ADC
+
+#ifndef HAS_ACCEL_REF
+#error Please define HAS_ACCEL_REF
+#endif
+
 /*
  * ao_adc.c
  */
@@ -178,6 +183,9 @@ struct ao_adc {
  */
 extern volatile __xdata struct ao_adc  ao_adc_ring[AO_ADC_RING];
 extern volatile __data uint8_t         ao_adc_head;
+#if HAS_ACCEL_REF
+extern volatile __xdata uint16_t       ao_accel_ref[AO_ADC_RING];
+#endif
 
 /* Trigger a conversion sequence (called from the timer interrupt) */
 void