X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=src%2Fstm%2Fao_timer.c;h=387df184c7747bb3f595c1c6d00d86a80d09993c;hp=76304f0e2b9fea2c590dbb55ab0c00c198a17eaf;hb=ab6ea9043b592c25948a70b6204d613756a9a250;hpb=0cc01d378ae96325e429ad608b953661582939b0

diff --git a/src/stm/ao_timer.c b/src/stm/ao_timer.c
index 76304f0e..387df184 100644
--- a/src/stm/ao_timer.c
+++ b/src/stm/ao_timer.c
@@ -48,13 +48,16 @@ ao_debug_out(char c);
 
 void stm_tim6_isr(void)
 {
-	++ao_tick_count;
+	if (stm_tim6.sr & (1 << STM_TIM67_SR_UIF)) {
+		stm_tim6.sr = 0;
+		++ao_tick_count;
 #if HAS_ADC
-	if (++ao_adc_count == ao_adc_interval) {
-		ao_adc_count = 0;
-		ao_adc_poll();
-	}
+		if (++ao_adc_count == ao_adc_interval) {
+			ao_adc_count = 0;
+			ao_adc_poll();
+		}
 #endif
+	}
 }
 
 #if HAS_ADC