fix compile on nightly

Author: burrbull

Cargo.toml

@@ -48,6 +48,7 @@ rtic-monotonic = { version = "1.0", optional = true }
 systick-monotonic = { version = "1.0", optional = true }
 bitflags = "2.2"
 embedded-storage = "0.2"
+vcell = "0.1.3"
 
 [dependencies.time]
 version = "0.3.14"

src/spi.rs

@@ -1,6 +1,5 @@
 use core::marker::PhantomData;
 use core::ops::{Deref, DerefMut};
-use core::ptr;
 
 use crate::dma::traits::{DMASet, PeriAddress};
 use crate::dma::{MemoryToPeripheral, PeripheralToMemory};
@@ -739,12 +738,14 @@ impl<SPI: Instance> Inner<SPI> {
     fn read_data_reg<W: FrameSize>(&mut self) -> W {
         // NOTE(read_volatile) read only 1 byte (the svd2rust API only allows
         // reading a half-word)
-        unsafe { ptr::read_volatile(&self.spi.dr as *const _ as *const W) }
+        unsafe { (*(&self.spi.dr as *const pac::spi1::DR).cast::<vcell::VolatileCell<W>>()).get() }
     }
 
     fn write_data_reg<W: FrameSize>(&mut self, data: W) {
         // NOTE(write_volatile) see note above
-        unsafe { ptr::write_volatile(&self.spi.dr as *const _ as *mut W, data) }
+        unsafe {
+            (*(&self.spi.dr as *const pac::spi1::DR).cast::<vcell::VolatileCell<W>>()).set(data)
+        }
     }
 
     #[inline(always)]

src/watchdog.rs

@@ -46,7 +46,7 @@ impl IndependentWatchdog {
     fn setup(&self, timeout_ms: MilliSeconds) {
         assert!(timeout_ms.ticks() < (1 << 15), "Watchdog timeout to high");
         let pr = match timeout_ms.ticks() {
-            t if t == 0 => 0b000, // <= (MAX_PR + 1) * 4 / LSI_KHZ => 0b000,
+            0 => 0b000, // <= (MAX_PR + 1) * 4 / LSI_KHZ => 0b000,
             t if t <= (MAX_PR + 1) * 8 / LSI_KHZ => 0b001,
             t if t <= (MAX_PR + 1) * 16 / LSI_KHZ => 0b010,
             t if t <= (MAX_PR + 1) * 32 / LSI_KHZ => 0b011,