From 7cba63c143b34f9ee4c1209a2de77c01f261c782 Mon Sep 17 00:00:00 2001
From: jhchun <jh.chun@medithings.co.kr>
Date: Wed, 8 Jul 2026 09:08:54 +0900
Subject: [PATCH] =?UTF-8?q?dummy=20burst=20ADC=20capture=20=EC=B6=94?=
 =?UTF-8?q?=EA=B0=80?=
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---
 src/measurement/piezo_measure.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/measurement/piezo_measure.c b/src/measurement/piezo_measure.c
index 1108f0b..9796da8 100644
--- a/src/measurement/piezo_measure.c
+++ b/src/measurement/piezo_measure.c
@@ -223,6 +223,13 @@ int piezo_measure_sweep(void)
                 k_busy_wait(PIEZO_AVG_INTER_BURST_GAP_US);
                 piezo_burst_sw((uint8_t)cfg->cycles);
                 k_busy_wait(capture_delay_us);
+
+                err = echo_adc_capture(echo_capture, cfg->samples);
+                if (err)
+                {
+                    DBG_PRINTF("[ECHO] dummy capture fail ch=%d dummy=%d err=%d\r\n", ch, dummy, err);
+                    return ECHO_STATUS_CAPTURE;
+                }
             }
 
             // 마지막 dummy capture와 첫 real capture 사이에도 같은 회복 시간