Qualify crate as no_std

Since this crate is now compiled into the embedded system -- not just something that runs at build time -- the crate is now no_std. This commit was tested in the teensy4-fcb crate. It works as expected.
imxrt-rs · Nov 15, 2020 · cc8a4be · cc8a4be
1 parent 1b7ab40
commit cc8a4be
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Showing 2 changed files with 3 additions and 1 deletion.
diff --git a/src/flexspi_lut.rs b/src/flexspi_lut.rs
@@ -3,7 +3,7 @@
 //! Derived from the iMXRT1060 Reference Manual (Rev 2),
 //! section 27.5.8.
 
-use std::fmt;
+use core::fmt;
 
 pub(crate) const INSTRUCTION_SIZE: usize = 2;
 

diff --git a/src/lib.rs b/src/lib.rs
@@ -130,5 +130,7 @@
 //! The name is not mangled. It may be referenced in a linker script by its section,
 //! `".fcb"`. Given the ABI guarantees, the FCB should be usable from both Rust and C.
 
+#![cfg_attr(not(test), no_std)]
+
 mod flexspi_lut;
 pub mod serial_flash;