fixup some of the gating

Author: Crzyrndm

Cargo.toml

@@ -142,15 +142,15 @@ required-features = ["rt"]
 
 [[example]]
 name = "can-loopback"
-required-features = ["rt", "stm32l431"]
+required-features = ["rt"]
 
 [[example]]
 name = "irq_button"
 required-features = ["rt"]
 
 [[example]]
 name = "qspi"
-required-features = ["rt", "stm32l476"]
+required-features = ["rt", "stm32l476"] # L433/43 have no QSPI peripheral and are highly likely to be used
 
 [[example]]
 name = "rng"

src/lib.rs

@@ -93,12 +93,7 @@ pub mod traits;
 
 #[cfg(not(any(feature = "stm32l4r9", feature = "stm32l4s9",)))]
 pub mod adc;
-#[cfg(any(
-    feature = "stm32l431",
-    feature = "stm32l451",
-    feature = "stm32l471",
-    feature = "stm32l475"
-))]
+#[cfg(not(any(feature = "stm32l412",)))]
 pub mod can;
 #[cfg(not(any(feature = "stm32l4r9", feature = "stm32l4s9",)))]
 pub mod crc;