mirror of https://github.com/m-labs/artiq.git
16 lines
434 B
Rust
16 lines
434 B
Rust
use core::{cmp, str};
|
|
use csr;
|
|
|
|
pub fn read(buf: &mut [u8]) -> &str {
|
|
unsafe {
|
|
csr::identifier::address_write(0);
|
|
let len = csr::identifier::data_read();
|
|
let len = cmp::min(len, buf.len() as u8);
|
|
for i in 0..len {
|
|
csr::identifier::address_write(1 + i);
|
|
buf[i as usize] = csr::identifier::data_read();
|
|
}
|
|
str::from_utf8_unchecked(&buf[..len as usize])
|
|
}
|
|
}
|