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| author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2008-08-01 09:24:16 +0000 |
|---|---|---|
| committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2008-08-01 09:24:16 +0000 |
| commit | 8e2d082b7bb0c2b9d938f7bb32dc9425767b645d (patch) | |
| tree | 7473c6ca22f4ec9a6206ad7ebddc9e6ee231eb55 | |
| parent | da290782934b7038dfccd5f76b2b75a792e7304f (diff) | |
| download | ChibiOS-8e2d082b7bb0c2b9d938f7bb32dc9425767b645d.tar.gz ChibiOS-8e2d082b7bb0c2b9d938f7bb32dc9425767b645d.tar.bz2 ChibiOS-8e2d082b7bb0c2b9d938f7bb32dc9425767b645d.zip | |
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@380 35acf78f-673a-0410-8e92-d51de3d6d3f4
| -rw-r--r-- | ports/ARMCM3/chcore.c | 4 | ||||
| -rw-r--r-- | ports/ARMCM3/chcore.h | 1 | ||||
| -rw-r--r-- | readme.txt | 5 |
3 files changed, 9 insertions, 1 deletions
diff --git a/ports/ARMCM3/chcore.c b/ports/ARMCM3/chcore.c index 199c71fd9..b9c7ce39a 100644 --- a/ports/ARMCM3/chcore.c +++ b/ports/ARMCM3/chcore.c @@ -27,7 +27,9 @@ __attribute__((weak)) void _IdleThread(void *p) { while (TRUE) { -// asm volatile ("wfi"); +#if ENABLE_WFI_IDLE != 0 + asm volatile ("wfi"); +#endif } } diff --git a/ports/ARMCM3/chcore.h b/ports/ARMCM3/chcore.h index 17b9e5b0b..1e451dfc7 100644 --- a/ports/ARMCM3/chcore.h +++ b/ports/ARMCM3/chcore.h @@ -29,6 +29,7 @@ typedef void *regarm; */ #define BASEPRI_USER 0 /* User level BASEPRI, 0 = disabled. */ #define BASEPRI_KERNEL 0x10 /* BASEPRI level within kernel lock. */ +#define ENABLE_WFI_IDLE 0 /* Enables the use of the WFI ins. */ /* * Interrupt saved context, empty in this architecture. diff --git a/readme.txt b/readme.txt index dc89f5fe6..d63d462f8 100644 --- a/readme.txt +++ b/readme.txt @@ -91,6 +91,11 @@ Win32-MinGW - ChibiOS/RT simulator and demo into a WIN32 process, performance.
- Added a test_terminate_threads() function to the test framework.
- Made the Cortex-M3 port preemption code more readable.
+- Added a ENABLE_WFI_IDLE option to the chcore.h file in the Cortex-M3 port,
+ setting this option to 1 enables the kernel to enter a low power mode when
+ executing the idle thread. Be careful however, this option can be not
+ compatible with some JTAB probes, it is better to enable it only on final
+ builds and not when debugging.
*** 0.6.8 ***
- FIX: Fixed a bug in the priority inheritance mechanism, the bug was only a
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