2 releases
0.1.0-alpha4 | Oct 17, 2024 |
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#249 in Hardware support
253 downloads per month
12KB
270 lines
This crate provides "null modem" PHY drivers for smoltcp
in both allocating and
non-allocating variants.
You can see a null modem as a two-ended in-memory pipe, where both ends are smoltcp::phy::Device
and the TX of one is connected directly to the RX of the other (and vice versa).
Example
use smoltcp::{
phy::{
Medium,
Device as _,
TxToken as _,
RxToken as _,
},
time::Instant,
};
const MTU: usize = 128;
const CAPACITY: usize = 4;
let mut modem = smoltcp_null_modem::noalloc::<CAPACITY, MTU>(Medium::Ethernet);
let (mut phy1, mut phy2) = modem.split();
// Send a frame into the first interface
let tok = phy1.transmit(Instant::now()).unwrap();
tok.consume(10, |buf| {
buf.copy_from_slice(&[0xa5; 10]);
});
// And it appears on the second
let (tok, _) = phy2.receive(Instant::now()).unwrap();
tok.consume(|buf| {
assert_eq!(buf, &[0xa5; 10]);
});
Dependencies
~2.5MB
~53K SLoC