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bug fixes for SCHED_RR

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This commit is contained in:
NIIBE Yutaka
2013-06-05 17:26:38 +09:00
parent 0ae3b2681f
commit 2fea34dd1c
4 changed files with 48 additions and 12 deletions
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3
example-led/Makefile
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@@ -14,7 +14,8 @@ OBJCOPY = $(CROSS)objcopy
MCU = cortex-m3
CWARN = -Wall -Wextra -Wstrict-prototypes
DEFS = -DFREE_STANDING
# DEFS = -DFREE_STANDING
DEFS = -DFREE_STANDING -DBUSY_LOOP -DCHX_FLAGS_MAIN=CHOPSTX_SCHED_RR
OPT = -O3 -Os -g
LIBS =

29
example-led/sample.c
View File

@@ -10,6 +10,20 @@ static chopstx_cond_t cnd1;
static uint8_t u, v;
static uint8_t m; /* 0..100 */
static void
wait_for (uint32_t usec)
{
#if defined(BUSY_LOOP)
uint32_t count = usec *18;
uint32_t i;
for (i = 0; i < count; i++)
asm volatile ("" : : "r" (i) : "memory");
#else
chopstx_usec_wait (usec);
#endif
}
static void *
pwm (void *arg)
{
@@ -22,9 +36,9 @@ pwm (void *arg)
while (1)
{
set_led (u&v);
chopstx_usec_wait (m);
wait_for (m);
set_led (0);
chopstx_usec_wait (100-m);
wait_for (100-m);
}
return NULL;
@@ -42,16 +56,21 @@ blk (void *arg)
while (1)
{
v = 0;
chopstx_usec_wait (200*1000);
wait_for (200*1000);
v = 1;
chopstx_usec_wait (200*1000);
wait_for (200*1000);
}
return NULL;
}
#if defined(BUSY_LOOP)
#define PRIO_PWM (CHOPSTX_SCHED_RR|1)
#define PRIO_BLK (CHOPSTX_SCHED_RR|1)
#else
#define PRIO_PWM 3
#define PRIO_BLK 2
#endif
extern uint8_t __process1_stack_base__, __process1_stack_size__;
extern uint8_t __process2_stack_base__, __process2_stack_size__;
@@ -88,7 +107,7 @@ main (int argc, const char *argv[])
while (1)
{
u ^= 1;
chopstx_usec_wait (200*1000*6);
wait_for (200*1000*6);
}
return 0;