Struct cansat_gps::Gps

pub struct Gps<Serial, const MAX_NMEA_LEN: usize> { /* private fields */ }

Gps driver.

It implements double buffering to ensure that you can always read the latest message received. MAX_NMEA_LEN is a maximum length of an NMEA message including $ and [CR][LF].

Examples

use cansat_gps::Gps;
use heapless::Vec;

let mut gps: Gps<_, 82> = Gps::new(uart);

let msg = loop {
    let (b, is_new_msg) = gps.read_serial().unwrap();
     
    if is_new_msg {
        break gps.last_nmea().unwrap();
    }
};

Implementations

impl<Serial, const MAX_NMEA_LEN: usize> Gps<Serial, MAX_NMEA_LEN>

pub fn new(serial: Serial) -> Self

pub fn last_nmea(&self) -> Option<Vec<u8, MAX_NMEA_LEN>>

Reads last received NMEA message.

impl<Serial, const MAX_NMEA_LEN: usize> Gps<Serial, MAX_NMEA_LEN>where Serial: Read,

pub fn read_serial(&mut self) -> Result<(u8, bool), Error<Serial::Error>>

Reads a single character from serial in a blocking mode and stores it in an internal buffer. On success, returns the read byte and a flag indicating whether a message was terminated.

impl<Serial, const MAX_NMEA_LEN: usize> Gps<Serial, MAX_NMEA_LEN>where Serial: Write,

pub fn send(&mut self, input: &[u8]) -> Result<(), Error<Serial::Error>>