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Merge pull request #6055 from mprse/ticker_k64f_set_interrupt_delta_fix 

K64F lp ticker driver - calculation bug fix.
pull/6162/head
Cruz Monrreal 2018-02-20 13:18:58 -06:00 committed by GitHub
parent 0368a8463f b6a01de070
commit f2ff36b1e3
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 7 additions and 2 deletions
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7
targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_MCU_K64F/us_ticker.c
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@ -83,10 +83,15 @@ void us_ticker_clear_interrupt(void)
void us_ticker_set_interrupt(timestamp_t timestamp)
{
uint32_t now_us, delta_us;
now_us = us_ticker_read();
delta_us = timestamp >= now_us ? timestamp - now_us : (uint32_t)((uint64_t)timestamp + 0xFFFFFFFF - now_us);
uint32_t delta = timestamp - us_ticker_read();
PIT_StopTimer(PIT, kPIT_Chnl_3);
PIT_StopTimer(PIT, kPIT_Chnl_2);
PIT_SetTimerPeriod(PIT, kPIT_Chnl_3, (uint32_t)delta);
PIT_SetTimerPeriod(PIT, kPIT_Chnl_3, (uint32_t)delta_us);
PIT_EnableInterrupts(PIT, kPIT_Chnl_3, kPIT_TimerInterruptEnable);
PIT_StartTimer(PIT, kPIT_Chnl_3);
PIT_StartTimer(PIT, kPIT_Chnl_2);

2
targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/api/lp_ticker.c
View File

@ -135,7 +135,7 @@ void lp_ticker_set_interrupt(timestamp_t timestamp)
lptmr_schedule = 0;
now_us = lp_ticker_read();
delta_us = timestamp > now_us ? timestamp - now_us : (uint32_t)((uint64_t)timestamp + 0xFFFFFFFF - now_us);
delta_us = timestamp >= now_us ? timestamp - now_us : (uint32_t)((uint64_t)timestamp + 0xFFFFFFFF - now_us);
/* Checking if LPTRM can handle this sleep */
delta_ticks = USEC_TO_COUNT(delta_us, CLOCK_GetFreq(kCLOCK_Er32kClk));