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[sam] Fixed wrap-around bug in delay() (Mark Tillotson)

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Fixes #1736
This commit is contained in:
Cristian Maglie
2013-12-14 00:31:45 +01:00
parent e2b15c852b
commit 2e7b645571
2 changed files with 10 additions and 4 deletions
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3
build/shared/revisions.txt
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@ -8,6 +8,9 @@ ARDUINO 1.5.6 BETA
* TFT: warning messages in PImage class and strings inside examples now stored in flash to save RAM. * TFT: warning messages in PImage class and strings inside examples now stored in flash to save RAM.
* Ethernet: added operator == for EthernetClient class (Norbert Truchsess) * Ethernet: added operator == for EthernetClient class (Norbert Truchsess)
[core]
* sam: Fixed wrap-around bug in delay() (Mark Tillotson)
ARDUINO 1.5.5 BETA 2013.11.28 ARDUINO 1.5.5 BETA 2013.11.28
NOTICE: NOTICE:

7
hardware/arduino/sam/cores/arduino/wiring.c
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@ -74,9 +74,12 @@ uint32_t micros( void )
void delay( uint32_t ms ) void delay( uint32_t ms )
{ {
uint32_t end = GetTickCount() + ms; if (ms == 0)
while (GetTickCount() < end) return;
uint32_t start = GetTickCount();
do {
yield(); yield();
} while (GetTickCount() - start < ms);
} }
#if defined ( __ICCARM__ ) /* IAR Ewarm 5.41+ */ #if defined ( __ICCARM__ ) /* IAR Ewarm 5.41+ */