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WIP deep sleep mode

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This commit is contained in:
Joey Castillo
2021-08-03 18:00:07 -04:00
parent 8a06636833
commit fc31739eb6
9 changed files with 126 additions and 51 deletions
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10
watch-library/main.c
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@@ -43,7 +43,6 @@
//-----------------------------------------------------------------------------
HAL_GPIO_PIN(UART_TX, B, 0)
HAL_GPIO_PIN(UART_RX, B, 2)
//-----------------------------------------------------------------------------
static void uart_init(uint32_t baud) {
@@ -51,8 +50,6 @@ static void uart_init(uint32_t baud) {
HAL_GPIO_UART_TX_out();
HAL_GPIO_UART_TX_pmuxen(HAL_GPIO_PMUX_C);
HAL_GPIO_UART_RX_in();
HAL_GPIO_UART_RX_pmuxen(HAL_GPIO_PMUX_C);
MCLK->APBCMASK.reg |= MCLK_APBCMASK_SERCOM3;
@@ -92,10 +89,15 @@ int main(void) {
// User code. Give the app a chance to initialize its data structures and state.
app_init();
// At this point, if the RTC peripheral is enabled, we are waking from BACKUP.
// If the RTC is already enabled, we're either waking from BACKUP mode or a reset.
// Ideally we should check if the TAMPER or CMP0 (alarm) flags are set.
if (watch_rtc_is_enabled()) {
// User code. Give the application a chance to restore state from backup registers.
app_wake_from_deep_sleep();
// disable the tamper interrupt and clear the tamper bit
hri_rtcmode0_clear_INTEN_TAMPER_bit(RTC);
hri_rtcmode0_clear_interrupt_TAMPER_bit(RTC);
}
// Watch library code. Set initial parameters for the device and enable the RTC.