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-rwxr-xr-xwatch-library/main.c41
-rw-r--r--watch-library/watch/watch.c40
-rw-r--r--watch-library/watch/watch.h105
3 files changed, 104 insertions, 82 deletions
diff --git a/watch-library/main.c b/watch-library/main.c
index 0d457b5f..67e47896 100755
--- a/watch-library/main.c
+++ b/watch-library/main.c
@@ -1,6 +1,6 @@
/*
* Copyright (c) 2021, Joey Castillo
- * SAML22 starter project is Copyright (c) 2014-2017, Alex Taradov <alex@taradov.com>
+ * UART methods are Copyright (c) 2014-2017, Alex Taradov <alex@taradov.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -82,26 +82,35 @@ void uart_puts(char *s) {
while (*s) uart_putc(*s++);
}
-//-----------------------------------------------------------------------------
-static void sys_init(void) {
- uart_puts("init_mcu\n");
+int main(void) {
+ // Temporary, for debugging.
+ uart_init(115200);
+
+ // ASF code. Initialize the MCU with configuration options from Atmel Studio.
init_mcu();
- uart_puts("watch_init\n");
- watch_init();
- uart_puts("app_init\n");
+
+ // User code. Give the app a chance to initialize its data structures and state.
app_init();
-}
-//-----------------------------------------------------------------------------
-int main(void) {
- uart_init(115200);
- sys_init();
+ // At this point, if the RTC peripheral is enabled, we are waking from BACKUP.
+ if (watch_rtc_is_enabled()) {
+ // User code. Give the application a chance to restore state from backup registers.
+ app_wake_from_deep_sleep();
+ }
+
+ // Watch library code. Set initial parameters for the device and enable the RTC.
+ watch_init();
+
+ // User code. Give the app a chance to enable and set up peripherals.
+ app_setup();
while (1) {
- app_loop();
- app_prepare_for_sleep();
- sleep(4);
- app_wake_from_sleep();
+ bool can_sleep = app_loop();
+ if (can_sleep) {
+ app_prepare_for_sleep();
+ sleep(4);
+ app_wake_from_sleep();
+ }
}
return 0;
diff --git a/watch-library/watch/watch.c b/watch-library/watch/watch.c
index 6ab093bd..82b7467c 100644
--- a/watch-library/watch/watch.c
+++ b/watch-library/watch/watch.c
@@ -1,15 +1,8 @@
-/*
- * watch.c
- *
- * Created: 4/25/2021 10:22:10 AM
- * Author: joeycastillo
- */
-
#include "watch.h"
#include <stdlib.h>
void watch_init() {
- // use switching regulator
+ // Use switching regulator for lower power consumption.
SUPC->VREG.bit.SEL = 1;
while(!SUPC->STATUS.bit.VREGRDY);
@@ -17,9 +10,8 @@ void watch_init() {
CALENDAR_0_init();
calendar_enable(&CALENDAR_0);
- // TODO: use performance level 0?
-// _set_performance_level(0);
-// hri_pm_write_PLCFG_PLDIS_bit(PM, true);
+ // Not sure if this belongs in every app -- is there a power impact?
+ delay_driver_init();
}
static const uint8_t Character_Set[] =
@@ -258,6 +250,10 @@ void watch_set_led_off() {
}
}
+bool watch_rtc_is_enabled() {
+ return RTC->MODE0.CTRLA.bit.ENABLE;
+}
+
void watch_set_date_time(struct calendar_date_time date_time) {
calendar_set_date(&CALENDAR_0, &date_time.date);
calendar_set_time(&CALENDAR_0, &date_time.time);
@@ -314,7 +310,7 @@ void watch_enable_pull_down(const uint8_t pin) {
gpio_set_pin_pull_mode(pin, GPIO_PULL_DOWN);
}
-bool watch_get_pin_level(const uint8_t pin, const bool level) {
+bool watch_get_pin_level(const uint8_t pin) {
return gpio_get_pin_level(pin);
}
@@ -348,3 +344,23 @@ void watch_i2c_receive(int16_t addr, uint8_t *buf, uint16_t length) {
i2c_m_sync_set_slaveaddr(&I2C_0, addr, I2C_M_SEVEN);
io_read(I2C_0_io, buf, length);
}
+
+void watch_store_backup_data(uint32_t data, uint8_t reg) {
+ if (reg < 8) {
+ RTC->MODE0.BKUP[reg].reg = data;
+ }
+}
+
+uint32_t watch_get_backup_data(uint8_t reg) {
+ if (reg < 8) {
+ return RTC->MODE0.BKUP[reg].reg;
+ }
+
+ return 0;
+}
+
+void watch_enter_deep_sleep(){
+ // Not yet implemented.
+ // TODO: enable tamper interrupt on ALARM pin.
+ // sleep(5);
+}
diff --git a/watch-library/watch/watch.h b/watch-library/watch/watch.h
index 0a8f8a38..ece87eed 100644
--- a/watch-library/watch/watch.h
+++ b/watch-library/watch/watch.h
@@ -1,55 +1,52 @@
-/*
- * Watch.h
- *
- * Created: 4/25/2021 8:29:16 AM
- * Author: joeycastillo
- */
-
-
-#ifndef WATCH_H_
-#define WATCH_H_
-#include <stdint.h>
-#include "driver_init.h"
-#include "hpl_calendar.h"
-#include "hal_ext_irq.h"
-
-void watch_init();
-
-void watch_enable_display();
-void watch_display_pixel(uint8_t com, uint8_t seg);
-void watch_display_string(char *string, uint8_t position);
-
-void watch_enable_led(bool pwm);
-void watch_disable_led(bool pwm);
-void watch_set_led_color(uint16_t red, uint16_t green);
-void watch_set_led_red();
-void watch_set_led_green();
-void watch_set_led_yellow();
-void watch_set_led_off();
-
-void watch_set_date_time(struct calendar_date_time date_time);
-void watch_get_date_time(struct calendar_date_time *date_time);
-
-void watch_enable_tick_callback(ext_irq_cb_t callback);
-
-void watch_enable_analog(const uint8_t pin);
-
-void watch_enable_buttons();
-void watch_register_button_callback(const uint32_t pin, ext_irq_cb_t callback);
-
-void watch_enable_digital_input(const uint8_t pin);
-void watch_enable_pull_up(const uint8_t pin);
-void watch_enable_pull_down(const uint8_t pin);
-bool watch_get_pin_level(const uint8_t pin, const bool level);
-
-void watch_enable_digital_output(const uint8_t pin);
-void watch_disable_digital_output(const uint8_t pin);
-void watch_set_pin_level(const uint8_t pin, const bool level);
-
-struct io_descriptor *I2C_0_io;
-
-void watch_enable_i2c();
-void watch_i2c_send(int16_t addr, uint8_t *buf, uint16_t length);
-void watch_i2c_receive(int16_t addr, uint8_t *buf, uint16_t length);
-
+#ifndef WATCH_H_
+#define WATCH_H_
+#include <stdint.h>
+#include "driver_init.h"
+#include "hpl_calendar.h"
+#include "hal_ext_irq.h"
+
+void watch_init();
+
+void watch_enable_display();
+void watch_display_pixel(uint8_t com, uint8_t seg);
+void watch_display_string(char *string, uint8_t position);
+
+void watch_enable_led(bool pwm);
+void watch_disable_led(bool pwm);
+void watch_set_led_color(uint16_t red, uint16_t green);
+void watch_set_led_red();
+void watch_set_led_green();
+void watch_set_led_yellow();
+void watch_set_led_off();
+
+bool watch_rtc_is_enabled();
+void watch_set_date_time(struct calendar_date_time date_time);
+void watch_get_date_time(struct calendar_date_time *date_time);
+
+void watch_enable_tick_callback(ext_irq_cb_t callback);
+
+void watch_enable_analog(const uint8_t pin);
+
+void watch_enable_buttons();
+void watch_register_button_callback(const uint32_t pin, ext_irq_cb_t callback);
+
+void watch_enable_digital_input(const uint8_t pin);
+void watch_enable_pull_up(const uint8_t pin);
+void watch_enable_pull_down(const uint8_t pin);
+bool watch_get_pin_level(const uint8_t pin);
+
+void watch_enable_digital_output(const uint8_t pin);
+void watch_disable_digital_output(const uint8_t pin);
+void watch_set_pin_level(const uint8_t pin, const bool level);
+
+struct io_descriptor *I2C_0_io;
+
+void watch_enable_i2c();
+void watch_i2c_send(int16_t addr, uint8_t *buf, uint16_t length);
+void watch_i2c_receive(int16_t addr, uint8_t *buf, uint16_t length);
+
+void watch_store_backup_data(uint32_t data, uint8_t reg);
+uint32_t watch_get_backup_data(uint8_t reg);
+void watch_enter_deep_sleep();
+
#endif /* WATCH_H_ */ \ No newline at end of file
generated by cgit v1.2.3 (git 2.25.1) at 2025-03-31 16:30:08 +0000