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author | Joey Castillo <jose.castillo@gmail.com> | 2021-08-02 16:14:47 -0400 |
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committer | Joey Castillo <jose.castillo@gmail.com> | 2021-08-02 16:14:47 -0400 |
commit | 8b92a1b44a489ad08fc1749e105ac4565d726803 (patch) | |
tree | 4790e2f8d9bf65071099ae2e93627af95e559d43 /Sensor Watch Starter Project/app.c | |
parent | 34945d78e933fc62bedcc975e88be02a0b7fcc2e (diff) | |
download | Sensor-Watch-8b92a1b44a489ad08fc1749e105ac4565d726803.tar.gz Sensor-Watch-8b92a1b44a489ad08fc1749e105ac4565d726803.tar.bz2 Sensor-Watch-8b92a1b44a489ad08fc1749e105ac4565d726803.zip |
thinking through deep sleep stuff
Diffstat (limited to 'Sensor Watch Starter Project/app.c')
-rw-r--r-- | Sensor Watch Starter Project/app.c | 93 |
1 files changed, 76 insertions, 17 deletions
diff --git a/Sensor Watch Starter Project/app.c b/Sensor Watch Starter Project/app.c index eb862767..30c1b8ea 100644 --- a/Sensor Watch Starter Project/app.c +++ b/Sensor Watch Starter Project/app.c @@ -1,11 +1,11 @@ #include <stdio.h> #include <string.h> +#include "watch.h" #include "app.h" -// these are implemented in main.c, just want to have access to them here. -void uart_putc(char c); -void uart_puts(char *s); - +////////////////////////////////////////////////////////////////////////////////////////// +// This section sets up types and storage for our application state. +// You can tear this out and replace it with whatever you want. typedef enum ApplicationMode { MODE_HELLO = 0, MODE_THERE @@ -21,35 +21,64 @@ typedef enum LightColor { typedef struct ApplicationState { ApplicationMode mode; LightColor color; + uint8_t wake_count; } ApplicationState; ApplicationState applicationState; -void cb_light_pressed() { - applicationState.color = (applicationState.color + 1) % 4; + +////////////////////////////////////////////////////////////////////////////////////////// +// This section defines the callbacks for our button press events (implemented at bottom). +// Add any other callbacks you may need either here or in another file. +void cb_light_pressed(); +void cb_mode_pressed(); +void cb_alarm_pressed(); + + +////////////////////////////////////////////////////////////////////////////////////////// +// This section contains the required functions for any watch app. You should tear out +// all the code in these functions when writing your app, but you must implement all +// of the functions, even if they are empty stubs. You can also replace the documentation +// lines with documentation that describes what your functions do! + +/** + * @brief the app_init function is called before anything else. Use it to set up any + * internal data structures or application state required by your app. + */ +void app_init() { + memset(&applicationState, 0, sizeof(applicationState)); } -void cb_mode_pressed() { - applicationState.mode = (applicationState.mode + 1) % 2; +/** + * @brief the app_wake_from_deep_sleep function is only called if your app is waking from + * the ultra-low power BACKUP sleep mode. You may have chosen to store some state in the + * RTC's backup registers prior to entering this mode. You may restore that state here. + * + * @see watch_enter_deep_sleep() + */ +void app_wake_from_deep_sleep() { + // TODO: deep sleep demo } /** - * @brief the app_init function is like setup() in Arduino. It is called once when the + * @brief the app_setup function is like setup() in Arduino. It is called once when the * program begins. You should set pin modes and enable any peripherals you want to - * set up (real-time clock, I2C, etc.) - * - * @note If your app enters the ultra-low power BACKUP sleep mode, this function will + * set up (real-time clock, I2C, etc.) Depending on your application, you may or may not + * want to configure sensors on your sensor board here. For example, a low-power + * accelerometer that will run at all times should be configured here, whereas you may + * want to enable a more power-hungry environmental sensor only when you need it. + * + * @note If your app enters the ultra-low power BACKUP sleep mode, this function will * be called again when it wakes from that deep sleep state. In this state, the RTC will * still be configured with the correct date and time. */ -void app_init() { - memset(&applicationState, 0, sizeof(applicationState)); - - watch_enable_led(false); +void app_setup() { + watch_enable_led(false); // enable LED with plain digital IO, not PWM watch_enable_buttons(); watch_register_button_callback(BTN_LIGHT, cb_light_pressed); watch_register_button_callback(BTN_MODE, cb_mode_pressed); + watch_register_button_callback(BTN_ALARM, cb_alarm_pressed); watch_enable_display(); } @@ -68,13 +97,15 @@ void app_prepare_for_sleep() { * STANDBY sleep mode. */ void app_wake_from_sleep() { + applicationState.wake_count++; } /** * @brief the app_loop function is called once on app startup and then again each time * the watch STANDBY sleep mode. */ -void app_loop() { +bool app_loop() { + // set the LED to a color switch (applicationState.color) { case COLOR_RED: watch_set_led_red(); @@ -89,6 +120,13 @@ void app_loop() { applicationState.color = COLOR_OFF; watch_set_led_off(); } + + // Display the number of times we've woken up (modulo 32 to fit in 2 digits at top right) + char buf[3] = {0}; + sprintf(buf, "%2d", applicationState.wake_count % 32); + watch_display_string(buf, 2); + + // display "Hello there" text switch (applicationState.mode) { case MODE_HELLO: watch_display_string("Hello", 5); @@ -97,4 +135,25 @@ void app_loop() { watch_display_string("there", 5); break; } + + // Wait a moment to debounce button input + delay_ms(250); + + return true; +} + + +////////////////////////////////////////////////////////////////////////////////////////// +// Implementations for our callback functions. Replace these with whatever functionality +// your app requires. +void cb_light_pressed() { + applicationState.color = (applicationState.color + 1) % 4; +} + +void cb_mode_pressed() { + applicationState.mode = (applicationState.mode + 1) % 2; } + +void cb_alarm_pressed() { + // TODO: deep sleep demo +}
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