summaryrefslogtreecommitdiff
path: root/src/stmf0/ao_adc_fast.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/stmf0/ao_adc_fast.c')
-rw-r--r--src/stmf0/ao_adc_fast.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/stmf0/ao_adc_fast.c b/src/stmf0/ao_adc_fast.c
index 7d2a4fd7..26e6691c 100644
--- a/src/stmf0/ao_adc_fast.c
+++ b/src/stmf0/ao_adc_fast.c
@@ -23,7 +23,7 @@ uint16_t ao_adc_ring[AO_ADC_RING_SIZE] __attribute__((aligned(4)));
/* Maximum number of samples fetched per _ao_adc_start call */
#define AO_ADC_RING_CHUNK (AO_ADC_RING_SIZE >> 1)
-uint16_t ao_adc_ring_head, ao_adc_ring_tail;
+uint16_t ao_adc_ring_head, ao_adc_ring_remain;
uint16_t ao_adc_running;
/*
@@ -36,6 +36,7 @@ static void ao_adc_dma_done(int index)
{
(void) index;
ao_adc_ring_head += ao_adc_running;
+ ao_adc_ring_remain += ao_adc_running;
if (ao_adc_ring_head == AO_ADC_RING_SIZE)
ao_adc_ring_head = 0;
ao_adc_running = 0;