From 8c5b77635e7347c6a91238113a09aa1d1c11a89f Mon Sep 17 00:00:00 2001
From: Richard Barry <ribarry@amazon.com>
Date: Mon, 23 Aug 2010 15:59:07 +0000
Subject: [PATCH] Add a -1 to the calculation of the compare match value.

---
 Source/portable/MPLAB/PIC24_dsPIC/port.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Source/portable/MPLAB/PIC24_dsPIC/port.c b/Source/portable/MPLAB/PIC24_dsPIC/port.c
index 241c47206..fb19e586e 100644
--- a/Source/portable/MPLAB/PIC24_dsPIC/port.c
+++ b/Source/portable/MPLAB/PIC24_dsPIC/port.c
@@ -260,7 +260,7 @@ void vPortEndScheduler( void )
  */
 static void prvSetupTimerInterrupt( void )
 {
-const unsigned long ulCompareMatch = ( configCPU_CLOCK_HZ / portTIMER_PRESCALE ) / configTICK_RATE_HZ;
+const unsigned long ulCompareMatch = ( ( configCPU_CLOCK_HZ / portTIMER_PRESCALE ) / configTICK_RATE_HZ ) - 1;
 
 	/* Prescale of 8. */
 	T1CON = 0;