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