diff --git a/examples/stm32f3/src/bin/spi_dma.rs b/examples/stm32f3/src/bin/spi_dma.rs
index 6a39097d..a27c1d54 100644
--- a/examples/stm32f3/src/bin/spi_dma.rs
+++ b/examples/stm32f3/src/bin/spi_dma.rs
@@ -8,6 +8,7 @@ use core::str::from_utf8;
 use defmt::*;
 use embassy_executor::Spawner;
 use embassy_stm32::spi::{Config, Spi};
+use embassy_stm32::time::Hertz;
 use heapless::String;
 use {defmt_rtt as _, panic_probe as _};
 
@@ -16,7 +17,10 @@ async fn main(_spawner: Spawner) {
     let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
-    let mut spi = Spi::new(p.SPI1, p.PB3, p.PB5, p.PB4, p.DMA1_CH3, p.DMA1_CH2, Config::default());
+    let mut spi_config = Config::default();
+    spi_config.frequency = Hertz(1_000_000);
+
+    let mut spi = Spi::new(p.SPI1, p.PB3, p.PB5, p.PB4, p.DMA1_CH3, p.DMA1_CH2, spi_config);
 
     for n in 0u32.. {
         let mut write: String<128> = String::new();
diff --git a/examples/stm32f4/src/bin/spi.rs b/examples/stm32f4/src/bin/spi.rs
index b0c62b3f..0919e987 100644
--- a/examples/stm32f4/src/bin/spi.rs
+++ b/examples/stm32f4/src/bin/spi.rs
@@ -7,6 +7,7 @@ use defmt::*;
 use embassy_stm32::dma::NoDma;
 use embassy_stm32::gpio::{Level, Output, Speed};
 use embassy_stm32::spi::{Config, Spi};
+use embassy_stm32::time::Hertz;
 use {defmt_rtt as _, panic_probe as _};
 
 #[entry]
@@ -15,7 +16,10 @@ fn main() -> ! {
 
     let p = embassy_stm32::init(Default::default());
 
-    let mut spi = Spi::new(p.SPI3, p.PC10, p.PC12, p.PC11, NoDma, NoDma, Config::default());
+    let mut spi_config = Config::default();
+    spi_config.frequency = Hertz(1_000_000);
+
+    let mut spi = Spi::new(p.SPI3, p.PC10, p.PC12, p.PC11, NoDma, NoDma, spi_config);
 
     let mut cs = Output::new(p.PE0, Level::High, Speed::VeryHigh);
 
diff --git a/examples/stm32f4/src/bin/spi_dma.rs b/examples/stm32f4/src/bin/spi_dma.rs
index 4edea93a..f291f7db 100644
--- a/examples/stm32f4/src/bin/spi_dma.rs
+++ b/examples/stm32f4/src/bin/spi_dma.rs
@@ -8,6 +8,7 @@ use core::str::from_utf8;
 use defmt::*;
 use embassy_executor::Spawner;
 use embassy_stm32::spi::{Config, Spi};
+use embassy_stm32::time::Hertz;
 use heapless::String;
 use {defmt_rtt as _, panic_probe as _};
 
@@ -16,7 +17,10 @@ async fn main(_spawner: Spawner) {
     let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
-    let mut spi = Spi::new(p.SPI1, p.PB3, p.PB5, p.PB4, p.DMA2_CH3, p.DMA2_CH2, Config::default());
+    let mut spi_config = Config::default();
+    spi_config.frequency = Hertz(1_000_000);
+
+    let mut spi = Spi::new(p.SPI1, p.PB3, p.PB5, p.PB4, p.DMA2_CH3, p.DMA2_CH2, spi_config);
 
     for n in 0u32.. {
         let mut write: String<128> = String::new();
diff --git a/examples/stm32l0/src/bin/spi.rs b/examples/stm32l0/src/bin/spi.rs
index 24ea9a68..583e3d12 100644
--- a/examples/stm32l0/src/bin/spi.rs
+++ b/examples/stm32l0/src/bin/spi.rs
@@ -7,6 +7,7 @@ use embassy_executor::Spawner;
 use embassy_stm32::dma::NoDma;
 use embassy_stm32::gpio::{Level, Output, Speed};
 use embassy_stm32::spi::{Config, Spi};
+use embassy_stm32::time::Hertz;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
@@ -14,7 +15,10 @@ async fn main(_spawner: Spawner) {
     let p = embassy_stm32::init(Default::default());
     info!("Hello World, folks!");
 
-    let mut spi = Spi::new(p.SPI1, p.PB3, p.PA7, p.PA6, NoDma, NoDma, Config::default());
+    let mut spi_config = Config::default();
+    spi_config.frequency = Hertz(1_000_000);
+
+    let mut spi = Spi::new(p.SPI1, p.PB3, p.PA7, p.PA6, NoDma, NoDma, spi_config);
 
     let mut cs = Output::new(p.PA15, Level::High, Speed::VeryHigh);
 
diff --git a/examples/stm32l1/src/bin/spi.rs b/examples/stm32l1/src/bin/spi.rs
index 53523140..905b4d75 100644
--- a/examples/stm32l1/src/bin/spi.rs
+++ b/examples/stm32l1/src/bin/spi.rs
@@ -7,6 +7,7 @@ use embassy_executor::Spawner;
 use embassy_stm32::dma::NoDma;
 use embassy_stm32::gpio::{Level, Output, Speed};
 use embassy_stm32::spi::{Config, Spi};
+use embassy_stm32::time::Hertz;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
@@ -14,7 +15,10 @@ async fn main(_spawner: Spawner) {
     let p = embassy_stm32::init(Default::default());
     info!("Hello World, folks!");
 
-    let mut spi = Spi::new(p.SPI1, p.PA5, p.PA7, p.PA6, NoDma, NoDma, Config::default());
+    let mut spi_config = Config::default();
+    spi_config.frequency = Hertz(1_000_000);
+
+    let mut spi = Spi::new(p.SPI1, p.PA5, p.PA7, p.PA6, NoDma, NoDma, spi_config);
 
     let mut cs = Output::new(p.PA4, Level::High, Speed::VeryHigh);
 
diff --git a/examples/stm32l4/src/bin/spi.rs b/examples/stm32l4/src/bin/spi.rs
index a3097fb4..54cf68f7 100644
--- a/examples/stm32l4/src/bin/spi.rs
+++ b/examples/stm32l4/src/bin/spi.rs
@@ -6,6 +6,7 @@ use defmt::*;
 use embassy_stm32::dma::NoDma;
 use embassy_stm32::gpio::{Level, Output, Speed};
 use embassy_stm32::spi::{Config, Spi};
+use embassy_stm32::time::Hertz;
 use {defmt_rtt as _, panic_probe as _};
 
 #[cortex_m_rt::entry]
@@ -14,7 +15,10 @@ fn main() -> ! {
 
     let p = embassy_stm32::init(Default::default());
 
-    let mut spi = Spi::new(p.SPI3, p.PC10, p.PC12, p.PC11, NoDma, NoDma, Config::default());
+    let mut spi_config = Config::default();
+    spi_config.frequency = Hertz(1_000_000);
+
+    let mut spi = Spi::new(p.SPI3, p.PC10, p.PC12, p.PC11, NoDma, NoDma, spi_config);
 
     let mut cs = Output::new(p.PE0, Level::High, Speed::VeryHigh);
 
diff --git a/examples/stm32l4/src/bin/spi_blocking_async.rs b/examples/stm32l4/src/bin/spi_blocking_async.rs
index 45af8a9f..f1b80087 100644
--- a/examples/stm32l4/src/bin/spi_blocking_async.rs
+++ b/examples/stm32l4/src/bin/spi_blocking_async.rs
@@ -8,6 +8,7 @@ use embassy_executor::Spawner;
 use embassy_stm32::dma::NoDma;
 use embassy_stm32::gpio::{Input, Level, Output, Pull, Speed};
 use embassy_stm32::spi::{Config, Spi};
+use embassy_stm32::time::Hertz;
 use embedded_hal_async::spi::SpiBus;
 use {defmt_rtt as _, panic_probe as _};
 
@@ -16,7 +17,10 @@ async fn main(_spawner: Spawner) {
     let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
-    let spi = Spi::new(p.SPI3, p.PC10, p.PC12, p.PC11, NoDma, NoDma, Config::default());
+    let mut spi_config = Config::default();
+    spi_config.frequency = Hertz(1_000_000);
+
+    let spi = Spi::new(p.SPI3, p.PC10, p.PC12, p.PC11, NoDma, NoDma, spi_config);
 
     let mut spi = BlockingAsync::new(spi);
 
diff --git a/examples/stm32l4/src/bin/spi_dma.rs b/examples/stm32l4/src/bin/spi_dma.rs
index 01265c49..ff9b5b43 100644
--- a/examples/stm32l4/src/bin/spi_dma.rs
+++ b/examples/stm32l4/src/bin/spi_dma.rs
@@ -6,6 +6,7 @@ use defmt::*;
 use embassy_executor::Spawner;
 use embassy_stm32::gpio::{Input, Level, Output, Pull, Speed};
 use embassy_stm32::spi::{Config, Spi};
+use embassy_stm32::time::Hertz;
 use {defmt_rtt as _, panic_probe as _};
 
 #[embassy_executor::main]
@@ -13,15 +14,10 @@ async fn main(_spawner: Spawner) {
     let p = embassy_stm32::init(Default::default());
     info!("Hello World!");
 
-    let mut spi = Spi::new(
-        p.SPI3,
-        p.PC10,
-        p.PC12,
-        p.PC11,
-        p.DMA1_CH1,
-        p.DMA1_CH2,
-        Config::default(),
-    );
+    let mut spi_config = Config::default();
+    spi_config.frequency = Hertz(1_000_000);
+
+    let mut spi = Spi::new(p.SPI3, p.PC10, p.PC12, p.PC11, p.DMA1_CH1, p.DMA1_CH2, spi_config);
 
     // These are the pins for the Inventek eS-Wifi SPI Wifi Adapter.
 
diff --git a/tests/stm32/src/bin/spi.rs b/tests/stm32/src/bin/spi.rs
index 7c2425fc..e51dd5bf 100644
--- a/tests/stm32/src/bin/spi.rs
+++ b/tests/stm32/src/bin/spi.rs
@@ -9,6 +9,7 @@ use defmt::assert_eq;
 use embassy_executor::Spawner;
 use embassy_stm32::dma::NoDma;
 use embassy_stm32::spi::{self, Spi};
+use embassy_stm32::time::Hertz;
 
 #[embassy_executor::main]
 async fn main(_spawner: Spawner) {
@@ -34,14 +35,14 @@ async fn main(_spawner: Spawner) {
     #[cfg(feature = "stm32c031c6")]
     let (spi, sck, mosi, miso) = (p.SPI1, p.PA5, p.PA7, p.PA6);
 
+    let mut spi_config = spi::Config::default();
+    spi_config.frequency = Hertz(1_000_000);
+
     let mut spi = Spi::new(
-        spi,
-        sck,  // Arduino D13
+        spi, sck,  // Arduino D13
         mosi, // Arduino D11
         miso, // Arduino D12
-        NoDma,
-        NoDma,
-        spi::Config::default(),
+        NoDma, NoDma, spi_config,
     );
 
     let data: [u8; 9] = [0x00, 0xFF, 0xAA, 0x55, 0xC0, 0xFF, 0xEE, 0xC0, 0xDE];
diff --git a/tests/stm32/src/bin/spi_dma.rs b/tests/stm32/src/bin/spi_dma.rs
index e70c09f7..d45cbe45 100644
--- a/tests/stm32/src/bin/spi_dma.rs
+++ b/tests/stm32/src/bin/spi_dma.rs
@@ -8,6 +8,7 @@ use common::*;
 use defmt::assert_eq;
 use embassy_executor::Spawner;
 use embassy_stm32::spi::{self, Spi};
+use embassy_stm32::time::Hertz;
 
 #[embassy_executor::main]
 async fn main(_spawner: Spawner) {
@@ -33,14 +34,14 @@ async fn main(_spawner: Spawner) {
     #[cfg(feature = "stm32c031c6")]
     let (spi, sck, mosi, miso, tx_dma, rx_dma) = (p.SPI1, p.PA5, p.PA7, p.PA6, p.DMA1_CH1, p.DMA1_CH2);
 
+    let mut spi_config = spi::Config::default();
+    spi_config.frequency = Hertz(1_000_000);
+
     let mut spi = Spi::new(
-        spi,
-        sck,  // Arduino D13
+        spi, sck,  // Arduino D13
         mosi, // Arduino D11
         miso, // Arduino D12
-        tx_dma,
-        rx_dma,
-        spi::Config::default(),
+        tx_dma, rx_dma, spi_config,
     );
 
     let data: [u8; 9] = [0x00, 0xFF, 0xAA, 0x55, 0xC0, 0xFF, 0xEE, 0xC0, 0xDE];