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Merge pull request #2929 from bapclenet/samr21/rtc_isr

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samd21/rtc_safety_isr
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bapclenet 2015-05-08 14:39:14 +02:00
commit bfaa4ea1e3
1 changed files with 1 additions and 1 deletions
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2
cpu/samd21/periph/rtc.c
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@ -186,7 +186,7 @@ void isr_rtc(void)
{
RtcMode2 *rtcMode2 = &(RTC_DEV);
uint16_t status = rtcMode2->INTFLAG.reg;
if (status & RTC_MODE2_INTFLAG_ALARM0) {
if ((status & RTC_MODE2_INTFLAG_ALARM0) && (rtc_callback.cb != NULL)) {
rtc_callback.cb(rtc_callback.arg);
rtcMode2->INTFLAG.reg = RTC_MODE2_INTFLAG_ALARM0;
}