From 22230e50a688ac1cdd3145399cb5def52879d0a1 Mon Sep 17 00:00:00 2001
From: rasky <rasky@38d2e660-2303-0410-9eaa-f027e97ec537>
Date: Wed, 29 Sep 2010 12:32:42 +0000
Subject: [PATCH] SEC: added cpu_relax() in busy-wait loop.

git-svn-id: https://src.develer.com/svnoss/bertos/trunk@4341 38d2e660-2303-0410-9eaa-f027e97ec537
---
 bertos/sec/random_lm3s.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/bertos/sec/random_lm3s.c b/bertos/sec/random_lm3s.c
index 0adc96ce..b5945f46 100644
--- a/bertos/sec/random_lm3s.c
+++ b/bertos/sec/random_lm3s.c
@@ -36,6 +36,7 @@
  */
 
 #include "random_p.h"
+#include <cpu/power.h>
 #include <io/cm3.h>
 #include <drv/clock_lm3s.h>
 
@@ -47,7 +48,8 @@ INLINE uint16_t hw_readRawTemp(void)
     /* Trig the temperature sampling */
     HWREG(ADC0_BASE + ADC_O_PSSI) |= ADC_PSSI_SS3;
 
-	while (!(HWREG(ADC0_BASE + ADC_O_SSFSTAT3) & ADC_SSFSTAT3_FULL));
+	while (!(HWREG(ADC0_BASE + ADC_O_SSFSTAT3) & ADC_SSFSTAT3_FULL))
+		cpu_relax();
 
     return (uint16_t)HWREG(ADC0_BASE + ADC_O_SSFIFO3);
 }
-- 
2.25.1