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Add a slow display refresh mode to fast_stopwatch

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Alessandro Genova
2025-08-26 23:56:50 -04:00
parent 7d0f4d1a33
commit edd3a5c3b4
2 changed files with 33 additions and 11 deletions
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43
watch-faces/complication/fast_stopwatch_face.c
View File

@ -31,6 +31,7 @@
#include "watch_common_display.h"
#include "watch_utility.h"
#include "watch_rtc.h"
#include "slcd.h"
/*
This watch face implements the original F-91W stopwatch functionality
@ -59,16 +60,23 @@ static inline void _button_beep() {
// How quickly should the elapsing time be displayed?
// This is just for looks, timekeeping is always accurate to 128Hz
static const uint8_t DISPLAY_RUNNING_RATE = 32;
static const uint8_t DISPLAY_RUNNING_RATE_SLOW = 2;
/// @brief Display minutes, seconds and fractions derived from 128 Hz tick counter
/// on the lcd.
/// @param ticks
static void _display_elapsed(fast_stopwatch_state_t *state, uint32_t ticks) {
char buf[3];
uint8_t sec_100 = (ticks & 0x7F) * 100 / 128;
watch_display_character_lp_seconds('0' + sec_100 / 10, 8);
watch_display_character_lp_seconds('0' + sec_100 % 10, 9);
if (state->slow_refresh && (state->status == SW_STATUS_RUNNING || state->status == SW_STATUS_IDLE)) {
watch_display_character_lp_seconds(' ', 8);
watch_display_character_lp_seconds(' ', 9);
} else {
uint8_t sec_100 = (ticks & 0x7F) * 100 / 128;
watch_display_character_lp_seconds('0' + sec_100 / 10, 8);
watch_display_character_lp_seconds('0' + sec_100 % 10, 9);
}
uint32_t seconds = ticks >> 7;
@ -157,7 +165,11 @@ static void _draw_indicators(fast_stopwatch_state_t *state, movement_event_t eve
static uint8_t get_refresh_rate(fast_stopwatch_state_t *state) {
switch (state->status) {
case SW_STATUS_RUNNING:
return DISPLAY_RUNNING_RATE;
if (state->slow_refresh) {
return DISPLAY_RUNNING_RATE_SLOW;
} else {
return DISPLAY_RUNNING_RATE;
}
case SW_STATUS_RUNNING_LAPPING:
return 2;
case SW_STATUS_STOPPED:
@ -174,7 +186,10 @@ static void state_transition(fast_stopwatch_state_t *state, rtc_counter_t counte
case EVENT_ALARM_BUTTON_DOWN:
state->status = SW_STATUS_RUNNING;
state->start_counter = counter;
movement_request_tick_frequency(DISPLAY_RUNNING_RATE);
movement_request_tick_frequency(get_refresh_rate(state));
return;
case EVENT_LIGHT_LONG_PRESS:
state->slow_refresh = !state->slow_refresh;
return;
default:
return;
@ -185,12 +200,12 @@ static void state_transition(fast_stopwatch_state_t *state, rtc_counter_t counte
case EVENT_ALARM_BUTTON_DOWN:
state->status = SW_STATUS_STOPPED;
state->stop_counter = counter;
movement_request_tick_frequency(1);
movement_request_tick_frequency(get_refresh_rate(state));
return;
case EVENT_LIGHT_BUTTON_DOWN:
state->status = SW_STATUS_RUNNING_LAPPING;
state->lap_counter = counter;
movement_request_tick_frequency(2);
movement_request_tick_frequency(get_refresh_rate(state));
return;
default:
return;
@ -201,12 +216,17 @@ static void state_transition(fast_stopwatch_state_t *state, rtc_counter_t counte
case EVENT_ALARM_BUTTON_DOWN:
state->status = SW_STATUS_STOPPED_LAPPING;
state->stop_counter = counter;
movement_request_tick_frequency(1);
movement_request_tick_frequency(get_refresh_rate(state));
return;
case EVENT_LIGHT_BUTTON_DOWN:
state->status = SW_STATUS_RUNNING;
state->lap_counter = counter;
movement_request_tick_frequency(DISPLAY_RUNNING_RATE);
movement_request_tick_frequency(get_refresh_rate(state));
return;
case EVENT_LIGHT_LONG_PRESS:
state->status = SW_STATUS_RUNNING;
state->slow_refresh = !state->slow_refresh;
movement_request_tick_frequency(get_refresh_rate(state));
return;
default:
return;
@ -218,7 +238,7 @@ static void state_transition(fast_stopwatch_state_t *state, rtc_counter_t counte
state->status = SW_STATUS_RUNNING_LAPPING;
state->start_counter = counter - state->stop_counter + state->start_counter;
state->lap_counter = counter - state->stop_counter + state->lap_counter;
movement_request_tick_frequency(2);
movement_request_tick_frequency(get_refresh_rate(state));
return;
case EVENT_LIGHT_BUTTON_DOWN:
state->status = SW_STATUS_STOPPED;
@ -232,7 +252,7 @@ static void state_transition(fast_stopwatch_state_t *state, rtc_counter_t counte
case EVENT_ALARM_BUTTON_DOWN:
state->status = SW_STATUS_RUNNING;
state->start_counter = counter - state->stop_counter + state->start_counter;
movement_request_tick_frequency(DISPLAY_RUNNING_RATE);
movement_request_tick_frequency(get_refresh_rate(state));
return;
case EVENT_LIGHT_BUTTON_DOWN:
state->status = SW_STATUS_IDLE;
@ -304,6 +324,7 @@ bool fast_stopwatch_face_loop(movement_event_t event, void *context) {
break;
case EVENT_ALARM_BUTTON_DOWN:
case EVENT_LIGHT_BUTTON_DOWN:
case EVENT_LIGHT_LONG_PRESS:
_button_beep();
// Fall into the case below;
case EVENT_TICK:

1
watch-faces/complication/fast_stopwatch_face.h
View File

@ -59,6 +59,7 @@ typedef struct {
rtc_counter_t lap_counter; // rtc counter when the stopwatch was lapped
rtc_counter_t stop_counter; // rtc counter when the stopwatch was stopped
uint8_t status; // the status the stopwatch is in (idle, running, stopped)
bool slow_refresh; // update the display slowly (same 128Hz timekeeping accuracy)
struct {
rtc_counter_t seconds;
rtc_counter_t minutes;