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ChibiOS
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git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@348 35acf78f-673a-0410-8e92-d51de3d6d3f4

This commit is contained in:
gdisirio 2008-07-23 10:22:14 +00:00
parent 2a249f7ff9
commit 6596113930
4 changed files with 18 additions and 12 deletions
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2
demos/ARMCM3-STM32F103-GCC/board.h
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@ -31,7 +31,7 @@
/*
* Uncomment this if you want a 48MHz system clock, else it will be 72MHz.
*/
//#define SYSCLK_48
#define SYSCLK_48
/*
* NOTES: PLLPRE can be 1 or 2, PLLMUL can be 2..16.

15
ports/ARMCM3/chcore.c
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@ -132,18 +132,19 @@ void PendSVVector(void) {
chSysUnlock();
asm volatile ("pop {pc}");
}
asm volatile ("pop {lr}");
asm volatile ("pop {lr} \n\t" \
"movs r3, #0 \n\t" \
"mrs %0, PSP" : "=r" (sp_thd) : );
register uint32_t tmp asm ("r3") = BASEPRI_USER;
#ifdef CH_CURRP_REGISTER_CACHE
asm volatile ("stmdb %0!, {r3-r6,r8-r11, lr}" :
asm volatile ("mrs %0, PSP \n\t" \
"stmdb %0!, {r3-r6,r8-r11, lr}" :
"=r" (sp_thd) :
"r" (sp_thd));
"r" (sp_thd), "r" (tmp));
#else
asm volatile ("stmdb %0!, {r3-r11,lr}" :
asm volatile ("mrs %0, PSP \n\t" \
"stmdb %0!, {r3-r11,lr}" :
"=r" (sp_thd) :
"r" (sp_thd));
"r" (sp_thd), "r" (tmp));
#endif
(otp = currp)->p_ctx.r13 = sp_thd;

12
ports/ARMCM3/chcore.h
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@ -24,6 +24,12 @@
typedef void *regarm;
/*
* Port-related configuration parameters.
*/
#define BASEPRI_USER 0 /* User level BASEPRI, 0 = disabled. */
#define BASEPRI_KERNEL 0x10 /* BASEPRI level within kernel lock. */
/*
* Interrupt saved context, empty in this architecture.
*/
@ -83,13 +89,11 @@ typedef struct {
}
#define chSysLock() { \
register uint32_t tmp asm ("r3"); \
asm volatile ("movs %0, #0x10" : "=r" (tmp): ); \
register uint32_t tmp asm ("r3") = BASEPRI_KERNEL; \
asm volatile ("msr BASEPRI, %0" : : "r" (tmp)); \
}
#define chSysUnlock() { \
register uint32_t tmp asm ("r3"); \
asm volatile ("movs %0, #0" : "=r" (tmp): ); \
register uint32_t tmp asm ("r3") = BASEPRI_USER; \
asm volatile ("msr BASEPRI, %0" : : "r" (tmp)); \
}
#define chSysSwitchI(otp, ntp) { \

1
readme.txt
View File

@ -79,6 +79,7 @@ Win32-MinGW - ChibiOS/RT simulator and demo into a WIN32 process,
problems when the CH_USE_MESSAGES_PRIORITY was enabled, this option is
disabled by default in ChibiOS/RT so it should not affect any user.
- Merged the documentation fixes submitted by Leon Woestenberg (thank you).
- Made the default BASEPRI levels (CM3 port) configurable into chcore.h.
*** 0.6.7 ***
- NEW: New chThdCreateFast() API, it is a simplified form of chThdCreate()