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MCUXpresso: Fix LPTimer issue when using multiple timeout objects #5347

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Merged
merged 1 commit into from
Oct 23, 2017
Merged

MCUXpresso: Fix LPTimer issue when using multiple timeout objects #5347

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10 changes: 10 additions & 0 deletions targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/api/lp_ticker.c
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Original file line number Diff line number Diff line change
Expand Up @@ -139,6 +139,11 @@ void lp_ticker_set_interrupt(timestamp_t timestamp)

/* Checking if LPTRM can handle this sleep */
delta_ticks = USEC_TO_COUNT(delta_us, CLOCK_GetFreq(kCLOCK_Er32kClk));
if (delta_ticks == 0) {
/* The requested delay is less than the minimum resolution of this counter */
delta_ticks = 1;
}

if (delta_ticks > MAX_LPTMR_SLEEP) {
/* Using RTC if wait time is over 16b (2s @32kHz) */
uint32_t delta_sec;
Expand All @@ -154,6 +159,11 @@ void lp_ticker_set_interrupt(timestamp_t timestamp)
/* Set aditional, subsecond, sleep time */
if (delta_us) {
lptmr_schedule = USEC_TO_COUNT(delta_us, CLOCK_GetFreq(kCLOCK_Er32kClk));
if (lptmr_schedule == 0) {
/* The requested delay is less than the minimum resolution of this counter */
lptmr_schedule = 1;
}

}
} else {
/* Below RTC resolution using LPTMR */
Expand Down