From b4e004abc23251dbc2a68794451f11f7a38471f6 Mon Sep 17 00:00:00 2001
From: "Colin J. Brigato" <colin@brigato.fr>
Date: Thu, 1 Aug 2019 01:56:30 +0200
Subject: [PATCH] Off by one in GetTickCountDelta (FIXes #301)

FIXes #301 and prevent a `-1`aka`UINT_MAX` delta.
---
 armsrc/ticks.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/armsrc/ticks.c b/armsrc/ticks.c
index 7ece25b93..22c5d5be1 100644
--- a/armsrc/ticks.c
+++ b/armsrc/ticks.c
@@ -64,7 +64,7 @@ uint32_t RAMFUNC GetTickCount(void) {
 
 uint32_t RAMFUNC GetTickCountDelta(uint32_t start_ticks) {
     uint32_t stop_ticks = AT91C_BASE_RTTC->RTTC_RTVR;
-    if (stop_ticks > start_ticks)
+    if (stop_ticks >= start_ticks)
         return stop_ticks - start_ticks;
     return (UINT32_MAX - start_ticks) + stop_ticks;
 }