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-rw-r--r--apps/px4io/controls.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/apps/px4io/controls.c b/apps/px4io/controls.c
index cad368ae4..6b5164756 100644
--- a/apps/px4io/controls.c
+++ b/apps/px4io/controls.c
@@ -218,7 +218,7 @@ controls_tick() {
* If we haven't seen any new control data in 200ms, assume we
* have lost input.
*/
- if ((hrt_absolute_time() - system_state.rc_channels_timestamp) > 200000) {
+ if (hrt_elapsed_time(&system_state.rc_channels_timestamp) > 200000) {
rc_input_lost = true;
/* clear the input-kind flags here */
@@ -294,7 +294,7 @@ ppm_input(uint16_t *values, uint16_t *num_values)
* If we have received a new PPM frame within the last 200ms, accept it
* and then invalidate it.
*/
- if ((hrt_absolute_time() - ppm_last_valid_decode) < 200000) {
+ if (hrt_elapsed_time(&ppm_last_valid_decode) < 200000) {
/* PPM data exists, copy it */
*num_values = ppm_decoded_channels;