From a9b067ee93238f49e077db645414e78b6abad463 Mon Sep 17 00:00:00 2001
From: Thibaut VIARD <thibaut.viard@atmel.com>
Date: Thu, 8 May 2014 23:27:37 +0200
Subject: [PATCH] Updating delay API
---
cores/arduino/delay.c | 22 ++++++----------------
1 file changed, 6 insertions(+), 16 deletions(-)
diff --git a/cores/arduino/delay.c b/cores/arduino/delay.c
index 59189351..83427841 100644
--- a/cores/arduino/delay.c
+++ b/cores/arduino/delay.c
@@ -43,22 +43,6 @@ uint32_t micros( void )
// a runtime multiplication and shift, saving a few cycles
}
-// original function:
-// uint32_t micros( void )
-// {
-// uint32_t ticks ;
-// uint32_t count ;
-//
-// SysTick->CTRL;
-// do {
-// ticks = SysTick->VAL;
-// count = GetTickCount();
-// } while (SysTick->CTRL & SysTick_CTRL_COUNTFLAG_Msk);
-//
-// return count * 1000 + (SysTick->LOAD + 1 - ticks) / (SystemCoreClock/1000000) ;
-// }
-
-
void delay( uint32_t ms )
{
if ( ms == 0 )
@@ -74,6 +58,12 @@ void delay( uint32_t ms )
} while ( _ulTickCount - start < ms ) ;
}
+void SysTick_Handler( void )
+{
+ // Increment tick count each ms
+ _ulTickCount++ ;
+}
+
#ifdef __cplusplus
}
#endif
--
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