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-rw-r--r--src/drivers/stm32/drv_hrt.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/drivers/stm32/drv_hrt.c b/src/drivers/stm32/drv_hrt.c
index 36226c941..f105251f0 100644
--- a/src/drivers/stm32/drv_hrt.c
+++ b/src/drivers/stm32/drv_hrt.c
@@ -342,7 +342,7 @@ static void hrt_call_invoke(void);
#define PPM_MAX_CHANNELS 20
/* Number of same-sized frames required to 'lock' */
-#define PPM_CHANNEL_LOCK 2 /* should be less than the input timeout */
+#define PPM_CHANNEL_LOCK 4 /* should be less than the input timeout */
__EXPORT uint16_t ppm_buffer[PPM_MAX_CHANNELS];
__EXPORT unsigned ppm_decoded_channels = 0;