void
ao_serial_putchar(char c) __critical;
+#define AO_SERIAL_SPEED_4800 0
+#define AO_SERIAL_SPEED_57600 1
+
+void
+ao_serial_set_speed(uint8_t speed);
+
void
ao_serial_init(void);
#define AO_GPS_NUM_SAT_SHIFT (0)
#define AO_GPS_VALID (1 << 4)
+#define AO_GPS_RUNNING (1 << 5)
struct ao_gps_data {
uint8_t hour;