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Code Issues Wiki Activity

Cache sysTickPending inside ATOMIC_BLOCK

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This commit is contained in:
jflyper 2016-10-04 03:53:59 +09:00
parent 59e78fcd8e
commit a89c36b5e1
1 changed files with 3 additions and 2 deletions
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5
src/main/drivers/system.c
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@ -78,7 +78,7 @@ void SysTick_Handler(void)
uint32_t microsISR(void)
{
register uint32_t ms, cycle_cnt;
register uint32_t ms, pending, cycle_cnt;
ATOMIC_BLOCK(NVIC_PRIO_MAX) {
cycle_cnt = SysTick->VAL;
@ -97,9 +97,10 @@ uint32_t microsISR(void)
}
ms = sysTickUptime;
pending = sysTickPending;
}
return ((ms + sysTickPending) * 1000) + (usTicks * 1000 - cycle_cnt) / usTicks;
return ((ms + pending) * 1000) + (usTicks * 1000 - cycle_cnt) / usTicks;
}
uint32_t micros(void)