From 61b5d372c1389c861fec51c9b92d2e841a7809fb Mon Sep 17 00:00:00 2001
From: torsten <t.zunker@fettec.net>
Date: Tue, 26 Oct 2021 17:14:51 +0200
Subject: [PATCH] AP_FETtecOneWire: reset buf_used

if byte is missing due to electrical noise it can now resync
---
 libraries/AP_FETtecOneWire/AP_FETtecOneWire.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/libraries/AP_FETtecOneWire/AP_FETtecOneWire.cpp b/libraries/AP_FETtecOneWire/AP_FETtecOneWire.cpp
index 9a5a2dc5b1..156e2a7d0d 100644
--- a/libraries/AP_FETtecOneWire/AP_FETtecOneWire.cpp
+++ b/libraries/AP_FETtecOneWire/AP_FETtecOneWire.cpp
@@ -606,6 +606,7 @@ void AP_FETtecOneWire::escs_set_values(const uint16_t* motor_values)
     // No command was yet sent, so no reply is expected and all information
     // on the receive buffer is either garbage or noise. Discard it
     _uart->discard_input();
+    _receive_buf_used = 0;
 
     // send throttle commands to all configured ESCs in a single packet transfer
     if (transmit(fast_throttle_command, sizeof(fast_throttle_command))) {