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Fix alarm so that it is correctly set.

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This commit is contained in:
Scott Shawcroft 2020-04-07 13:07:29 -07:00
parent c49d2ea278
commit a8dfba235c
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GPG Key ID: 9349BC7E64B1921E
2 changed files with 9 additions and 3 deletions
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1
ports/mimxrt10xx/common-hal/rtc/RTC.c
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@ -72,5 +72,6 @@ int common_hal_rtc_get_calibration(void) {
} }
void common_hal_rtc_set_calibration(int calibration) { void common_hal_rtc_set_calibration(int calibration) {
// SNVS has HPCALB_VAL bits for calibration.
mp_raise_NotImplementedError(translate("RTC calibration is not supported on this board")); mp_raise_NotImplementedError(translate("RTC calibration is not supported on this board"));
} }

11
ports/mimxrt10xx/supervisor/port.c
View File

@ -328,7 +328,7 @@ uint32_t *port_heap_get_top(void) {
return &_ld_heap_end; return &_ld_heap_end;
} }
// Place the word to save just after our BSS section that gets blanked. // Place the word into the low power section of the SNVS.
void port_set_saved_word(uint32_t value) { void port_set_saved_word(uint32_t value) {
SNVS->LPGPR[1] = value; SNVS->LPGPR[1] = value;
} }
@ -366,8 +366,11 @@ void port_interrupt_after_ticks(uint32_t ticks) {
uint8_t subticks; uint8_t subticks;
uint64_t current_ticks = port_get_raw_ticks(&subticks); uint64_t current_ticks = port_get_raw_ticks(&subticks);
current_ticks += ticks; current_ticks += ticks;
SNVS->HPTALR = current_ticks << 5 | subticks; SNVS->HPCR &= ~SNVS_HPCR_HPTA_EN_MASK;
// Wait for the alarm to be disabled.
while ((SNVS->HPCR & SNVS_HPCR_HPTA_EN_MASK) != 0) {}
SNVS->HPTAMR = current_ticks >> (32 - 5); SNVS->HPTAMR = current_ticks >> (32 - 5);
SNVS->HPTALR = current_ticks << 5 | subticks;
SNVS->HPCR |= SNVS_HPCR_HPTA_EN_MASK; SNVS->HPCR |= SNVS_HPCR_HPTA_EN_MASK;
} }
@ -379,8 +382,10 @@ void port_sleep_until_interrupt(void) {
__set_FPSCR(__get_FPSCR() & ~(0x9f)); __set_FPSCR(__get_FPSCR() & ~(0x9f));
(void) __get_FPSCR(); (void) __get_FPSCR();
} }
// Call wait for interrupt ourselves if the SD isn't enabled. NVIC_ClearPendingIRQ(SNVS_HP_WRAPPER_IRQn);
CLOCK_SetMode(kCLOCK_ModeWait);
__WFI(); __WFI();
CLOCK_SetMode(kCLOCK_ModeRun);
} }
/** /**