From 02f5a60065a651d1283ad21214d0599b817b3a8c Mon Sep 17 00:00:00 2001
From: Marek Bel <marek.bel@posta.cz>
Date: Thu, 2 Aug 2018 17:23:11 +0200
Subject: [PATCH] Fix compiler warning: sketch/ultralcd.cpp:6540:23: warning:
 array subscript has type 'char' [-Wchar-subscripts]

---
 Firmware/ultralcd.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Firmware/ultralcd.cpp b/Firmware/ultralcd.cpp
index 767fafd7..70e3a0db 100644
--- a/Firmware/ultralcd.cpp
+++ b/Firmware/ultralcd.cpp
@@ -149,7 +149,7 @@ static void lcd_selftest_v();
 static bool lcd_selfcheck_endstops();
 
 #ifdef TMC2130
-static void reset_crash_det(char axis);
+static void reset_crash_det(unsigned char axis);
 static bool lcd_selfcheck_axis_sg(char axis);
 static bool lcd_selfcheck_axis(int _axis, int _travel);
 #else
@@ -6536,7 +6536,7 @@ bool lcd_selftest()
 
 #ifdef TMC2130
 
-static void reset_crash_det(char axis) {
+static void reset_crash_det(unsigned char axis) {
 	current_position[axis] += 10;
 	plan_buffer_line(current_position[X_AXIS], current_position[Y_AXIS], current_position[Z_AXIS], current_position[3], manual_feedrate[0] / 60, active_extruder);
 	st_synchronize();