use common::usb_serial;
use common::display;
use common::gps;
+use common::screen;
+use common::time::Time;
extern {
fn enable_interrupts();
display.init();
display.clear();
+ let mut screen = screen::Screen::new();
+
// Hold GPS in reset while configuring its UART.
gpio::clear(gpio::GPIOB, 1);
systick::delay_ms(50);
let mut gps = gps::Gps::new();
+ let mut gps_has_fix = false;
+ let mut gps_has_fix_ticks = 0;
+
let mut heart_icon_timer = Timer::new(1000);
+ let mut gps_icon_timer = Timer::new(500);
+
+ let mut prev_tap = gps::TimeAndPos::new();
loop {
let mut tap = gps::TimeAndPos::new();
+ let mut show_time = false;
+ let old_gps_has_fix = gps_has_fix;
while gps.update(&mut tap) {
+ prev_tap = tap;
+
+ show_time = true;
+
+ gps_has_fix = true;
+ gps_has_fix_ticks = systick::now();
+ }
+
+ // Did GPS fix information expire?
+ if gps_has_fix && systick::has_timeout_ms(gps_has_fix_ticks, 1500) {
+ gps_has_fix = false;
+ }
+
+ if gps_has_fix && !old_gps_has_fix {
+ display.show_icon(display::Icon::SatelliteBody);
+ display.show_icon(display::Icon::SatelliteWave1);
+ display.show_icon(display::Icon::SatelliteWave2);
+ } else if !gps_has_fix {
+ gps_icon_timer.update(|state| {
+ if state == 1 {
+ display.show_icon(display::Icon::SatelliteWave1);
+ 2
+ } else if state == 2 {
+ display.show_icon(display::Icon::SatelliteWave2);
+ 3
+ } else if state == 3 {
+ display.hide_icon(display::Icon::SatelliteBody);
+ display.hide_icon(display::Icon::SatelliteWave1);
+ display.hide_icon(display::Icon::SatelliteWave2);
+ 0
+ } else {
+ display.show_icon(display::Icon::SatelliteBody);
+ 1
+ }
+ });
+ }
+
+ if show_time {
+ if let Some(tm) = Time::from_unix_time(prev_tap.unix_time) {
+ let mut time_s = [b' '; 8];
+ tm.fmt_time(&mut time_s);
+
+ screen.clear();
+ screen.draw_text(&time_s);
+
+ display.draw(&screen);
+ }
}
heart_icon_timer.update(|state| {