diff --git a/embassy-stm32/src/spi/mod.rs b/embassy-stm32/src/spi/mod.rs
index a0bb66eb..4899676e 100644
--- a/embassy-stm32/src/spi/mod.rs
+++ b/embassy-stm32/src/spi/mod.rs
@@ -1,16 +1,19 @@
 #![macro_use]
 
+use crate::dma;
+use crate::gpio::{AnyPin, NoPin, OptionalPin};
+use crate::pac::spi::vals;
+use crate::peripherals;
+use crate::rcc::RccPeripheral;
+use core::marker::PhantomData;
+
 #[cfg_attr(spi_v1, path = "v1.rs")]
 #[cfg_attr(spi_f1, path = "v1.rs")]
 #[cfg_attr(spi_v2, path = "v2.rs")]
 #[cfg_attr(spi_v3, path = "v3.rs")]
 mod _version;
-use crate::pac::spi::vals;
-use crate::{dma, peripherals, rcc::RccPeripheral};
 pub use _version::*;
 
-use crate::gpio::{NoPin, OptionalPin};
-
 #[derive(Debug)]
 #[cfg_attr(feature = "defmt", derive(defmt::Format))]
 pub enum Error {
@@ -89,6 +92,16 @@ impl Default for Config {
     }
 }
 
+pub struct Spi<'d, T: Instance, Tx, Rx> {
+    sck: Option<AnyPin>,
+    mosi: Option<AnyPin>,
+    miso: Option<AnyPin>,
+    txdma: Tx,
+    rxdma: Rx,
+    current_word_size: WordSize,
+    phantom: PhantomData<&'d mut T>,
+}
+
 pub(crate) mod sealed {
     use super::*;
 
diff --git a/embassy-stm32/src/spi/v1.rs b/embassy-stm32/src/spi/v1.rs
index a41c7991..d7075dc4 100644
--- a/embassy-stm32/src/spi/v1.rs
+++ b/embassy-stm32/src/spi/v1.rs
@@ -3,7 +3,6 @@
 use crate::dma::NoDma;
 use crate::gpio::sealed::AFType;
 use crate::gpio::sealed::Pin;
-use crate::gpio::AnyPin;
 use crate::pac::spi;
 use crate::spi::{
     ByteOrder, Config, Error, Instance, MisoPin, MosiPin, RxDmaChannel, SckPin, TxDmaChannel,
@@ -20,15 +19,7 @@ pub use embedded_hal::blocking;
 pub use embedded_hal::spi::{Mode, Phase, Polarity, MODE_0, MODE_1, MODE_2, MODE_3};
 use futures::future::join3;
 
-pub struct Spi<'d, T: Instance, Tx, Rx> {
-    sck: Option<AnyPin>,
-    mosi: Option<AnyPin>,
-    miso: Option<AnyPin>,
-    txdma: Tx,
-    rxdma: Rx,
-    current_word_size: WordSize,
-    phantom: PhantomData<&'d mut T>,
-}
+use super::Spi;
 
 impl<'d, T: Instance, Tx, Rx> Spi<'d, T, Tx, Rx> {
     pub fn new<F>(
diff --git a/embassy-stm32/src/spi/v2.rs b/embassy-stm32/src/spi/v2.rs
index 0c0d24ce..94e5ca08 100644
--- a/embassy-stm32/src/spi/v2.rs
+++ b/embassy-stm32/src/spi/v2.rs
@@ -2,7 +2,6 @@
 
 use crate::dma::NoDma;
 use crate::gpio::sealed::Pin;
-use crate::gpio::AnyPin;
 use crate::pac::spi;
 use crate::spi::{
     ByteOrder, Config, Error, Instance, MisoPin, MosiPin, RxDmaChannel, SckPin, TxDmaChannel,
@@ -18,15 +17,7 @@ use embassy_traits::spi as traits;
 pub use embedded_hal::spi::{Mode, Phase, Polarity, MODE_0, MODE_1, MODE_2, MODE_3};
 use futures::future::{join, join3};
 
-pub struct Spi<'d, T: Instance, Tx, Rx> {
-    sck: Option<AnyPin>,
-    mosi: Option<AnyPin>,
-    miso: Option<AnyPin>,
-    txdma: Tx,
-    rxdma: Rx,
-    current_word_size: WordSize,
-    phantom: PhantomData<&'d mut T>,
-}
+use super::Spi;
 
 impl<'d, T: Instance, Tx, Rx> Spi<'d, T, Tx, Rx> {
     pub fn new<F>(
diff --git a/embassy-stm32/src/spi/v3.rs b/embassy-stm32/src/spi/v3.rs
index e2751ce2..99c3eac1 100644
--- a/embassy-stm32/src/spi/v3.rs
+++ b/embassy-stm32/src/spi/v3.rs
@@ -2,7 +2,6 @@
 
 use crate::dma::NoDma;
 use crate::gpio::sealed::Pin;
-use crate::gpio::AnyPin;
 use crate::pac::spi;
 use crate::spi::{
     ByteOrder, Config, Error, Instance, MisoPin, MosiPin, RxDmaChannel, SckPin, TxDmaChannel,
@@ -19,16 +18,7 @@ pub use embedded_hal::spi::{Mode, Phase, Polarity, MODE_0, MODE_1, MODE_2, MODE_
 
 use futures::future::join3;
 
-#[allow(unused)]
-pub struct Spi<'d, T: Instance, Tx = NoDma, Rx = NoDma> {
-    sck: Option<AnyPin>,
-    mosi: Option<AnyPin>,
-    miso: Option<AnyPin>,
-    txdma: Tx,
-    rxdma: Rx,
-    current_word_size: WordSize,
-    phantom: PhantomData<&'d mut T>,
-}
+use super::Spi;
 
 impl<'d, T: Instance, Tx, Rx> Spi<'d, T, Tx, Rx> {
     pub fn new<F>(
@@ -338,7 +328,7 @@ impl<'d, T: Instance, Tx, Rx> Drop for Spi<'d, T, Tx, Rx> {
     }
 }
 
-impl<'d, T: Instance> embedded_hal::blocking::spi::Write<u8> for Spi<'d, T, NoDma> {
+impl<'d, T: Instance> embedded_hal::blocking::spi::Write<u8> for Spi<'d, T, NoDma, NoDma> {
     type Error = Error;
 
     fn write(&mut self, words: &[u8]) -> Result<(), Self::Error> {
@@ -386,7 +376,7 @@ impl<'d, T: Instance> embedded_hal::blocking::spi::Write<u8> for Spi<'d, T, NoDm
     }
 }
 
-impl<'d, T: Instance> embedded_hal::blocking::spi::Transfer<u8> for Spi<'d, T, NoDma> {
+impl<'d, T: Instance> embedded_hal::blocking::spi::Transfer<u8> for Spi<'d, T, NoDma, NoDma> {
     type Error = Error;
 
     fn transfer<'w>(&mut self, words: &'w mut [u8]) -> Result<&'w [u8], Self::Error> {
@@ -443,7 +433,7 @@ impl<'d, T: Instance> embedded_hal::blocking::spi::Transfer<u8> for Spi<'d, T, N
     }
 }
 
-impl<'d, T: Instance> embedded_hal::blocking::spi::Write<u16> for Spi<'d, T, NoDma> {
+impl<'d, T: Instance> embedded_hal::blocking::spi::Write<u16> for Spi<'d, T, NoDma, NoDma> {
     type Error = Error;
 
     fn write(&mut self, words: &[u16]) -> Result<(), Self::Error> {
@@ -492,7 +482,7 @@ impl<'d, T: Instance> embedded_hal::blocking::spi::Write<u16> for Spi<'d, T, NoD
     }
 }
 
-impl<'d, T: Instance> embedded_hal::blocking::spi::Transfer<u16> for Spi<'d, T, NoDma> {
+impl<'d, T: Instance> embedded_hal::blocking::spi::Transfer<u16> for Spi<'d, T, NoDma, NoDma> {
     type Error = Error;
 
     fn transfer<'w>(&mut self, words: &'w mut [u16]) -> Result<&'w [u16], Self::Error> {