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bsps/arm: Fix ARMv7-M CPU counter

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Read the current counter value again after we know that we had an
underflow.

Update #3456.
This commit is contained in:
Sebastian Huber
2019-04-08 11:59:29 +02:00
parent 2c09b71faf
commit b8a0a49672
1 changed files with 1 additions and 0 deletions
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bsps/arm/include/bsp/clock-armv7m.h
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@@ -59,6 +59,7 @@ static uint32_t _ARMV7M_Clock_counter(ARMV7M_Timecounter *tc)
ticks = tc->ticks; ticks = tc->ticks;
if ((systick->csr & ARMV7M_SYSTICK_CSR_COUNTFLAG) != 0) { if ((systick->csr & ARMV7M_SYSTICK_CSR_COUNTFLAG) != 0) {
counter = systick->cvr;
ticks += interval; ticks += interval;
tc->ticks = ticks; tc->ticks = ticks;
} }