diff --git a/boards/rp-pico/examples/pico_i2c_oled_display_ssd1306.rs b/boards/rp-pico/examples/pico_i2c_oled_display_ssd1306.rs
index 5cc27c8..dd30795 100644
--- a/boards/rp-pico/examples/pico_i2c_oled_display_ssd1306.rs
+++ b/boards/rp-pico/examples/pico_i2c_oled_display_ssd1306.rs
@@ -134,7 +134,7 @@ fn main() -> ! {
         scl_pin,
         400.kHz(),
         &mut pac.RESETS,
-        clocks.peripheral_clock,
+        &clocks.peripheral_clock,
     );
 
     // Create the I²C display interface:
diff --git a/boards/rp-pico/examples/pico_i2c_pio.rs b/boards/rp-pico/examples/pico_i2c_pio.rs
index 9872d2b..7bff71f 100644
--- a/boards/rp-pico/examples/pico_i2c_pio.rs
+++ b/boards/rp-pico/examples/pico_i2c_pio.rs
@@ -98,7 +98,7 @@ fn main() -> ! {
     let mut uart = hal::uart::UartPeripheral::new(pac.UART0, uart_pins, &mut pac.RESETS)
         .enable(
             hal::uart::common_configs::_115200_8_N_1,
-            clocks.peripheral_clock.into(),
+            clocks.peripheral_clock.freq(),
         )
         .unwrap();
 
diff --git a/boards/rp-pico/examples/pico_uart_irq_buffer.rs b/boards/rp-pico/examples/pico_uart_irq_buffer.rs
index 815ea22..9117662 100644
--- a/boards/rp-pico/examples/pico_uart_irq_buffer.rs
+++ b/boards/rp-pico/examples/pico_uart_irq_buffer.rs
@@ -138,7 +138,7 @@ fn main() -> ! {
     let mut uart = hal::uart::UartPeripheral::new(pac.UART0, uart_pins, &mut pac.RESETS)
         .enable(
             hal::uart::common_configs::_9600_8_N_1,
-            clocks.peripheral_clock.into(),
+            clocks.peripheral_clock.freq(),
         )
         .unwrap();
 
diff --git a/boards/rp-pico/examples/pico_uart_irq_echo.rs b/boards/rp-pico/examples/pico_uart_irq_echo.rs
index 181da97..5002e6e 100644
--- a/boards/rp-pico/examples/pico_uart_irq_echo.rs
+++ b/boards/rp-pico/examples/pico_uart_irq_echo.rs
@@ -122,7 +122,7 @@ fn main() -> ! {
     let mut uart = hal::uart::UartPeripheral::new(pac.UART0, uart_pins, &mut pac.RESETS)
         .enable(
             hal::uart::common_configs::_9600_8_N_1,
-            clocks.peripheral_clock.into(),
+            clocks.peripheral_clock.freq(),
         )
         .unwrap();
 
diff --git a/rp2040-hal/CHANGELOG.md b/rp2040-hal/CHANGELOG.md
index e79c94b..896291a 100644
--- a/rp2040-hal/CHANGELOG.md
+++ b/rp2040-hal/CHANGELOG.md
@@ -10,6 +10,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 - Update embedded-hal alpha support to version 1.0.0-alpha.8
+- Implement `From<&SomeClock> for Hertz` instead of `From<SomeClock> for Hertz`
+  for the clocks in `rp2040_hal::clocks`.
 
 ## [0.5.0] - 2022-06-13
 
diff --git a/rp2040-hal/examples/adc.rs b/rp2040-hal/examples/adc.rs
index a5ffd1d..a752fe5 100644
--- a/rp2040-hal/examples/adc.rs
+++ b/rp2040-hal/examples/adc.rs
@@ -94,7 +94,7 @@ fn main() -> ! {
     let mut uart = hal::uart::UartPeripheral::new(pac.UART0, uart_pins, &mut pac.RESETS)
         .enable(
             hal::uart::common_configs::_9600_8_N_1,
-            clocks.peripheral_clock.into(),
+            clocks.peripheral_clock.freq(),
         )
         .unwrap();
 
diff --git a/rp2040-hal/examples/i2c.rs b/rp2040-hal/examples/i2c.rs
index 1d08fdf..43423f1 100644
--- a/rp2040-hal/examples/i2c.rs
+++ b/rp2040-hal/examples/i2c.rs
@@ -89,7 +89,7 @@ fn main() -> ! {
         scl_pin, // Try `not_an_scl_pin` here
         400.kHz(),
         &mut pac.RESETS,
-        clocks.peripheral_clock,
+        &clocks.system_clock,
     );
 
     // Write three bytes to the I²C device with 7-bit address 0x2C
diff --git a/rp2040-hal/examples/rom_funcs.rs b/rp2040-hal/examples/rom_funcs.rs
index c2624dc..8fc9769 100644
--- a/rp2040-hal/examples/rom_funcs.rs
+++ b/rp2040-hal/examples/rom_funcs.rs
@@ -25,6 +25,7 @@ use hal::pac;
 
 // Some traits we need
 use core::fmt::Write;
+use hal::Clock;
 
 /// The linker will place this boot block at the start of our program image. We
 /// need this to help the ROM bootloader get our code up and running.
@@ -89,7 +90,7 @@ fn main() -> ! {
     let mut uart = hal::uart::UartPeripheral::new(pac.UART0, uart_pins, &mut pac.RESETS)
         .enable(
             hal::uart::common_configs::_9600_8_N_1,
-            clocks.peripheral_clock.into(),
+            clocks.peripheral_clock.freq(),
         )
         .unwrap();
 
diff --git a/rp2040-hal/src/clocks/macros.rs b/rp2040-hal/src/clocks/macros.rs
index e814640..ddbd9dc 100644
--- a/rp2040-hal/src/clocks/macros.rs
+++ b/rp2040-hal/src/clocks/macros.rs
@@ -417,9 +417,9 @@ macro_rules! base_clock {
 
             impl Sealed for $name {}
 
-            impl From<$name> for Hertz
+            impl From<&$name> for Hertz
              {
-                fn from(value: $name) -> Hertz {
+                fn from(value: &$name) -> Hertz {
                     value.frequency
                 }
             }
diff --git a/rp2040-hal/src/uart/mod.rs b/rp2040-hal/src/uart/mod.rs
index 5c0f727..d0ddc57 100644
--- a/rp2040-hal/src/uart/mod.rs
+++ b/rp2040-hal/src/uart/mod.rs
@@ -6,7 +6,7 @@
 //!
 //! See [examples/uart.rs](https://github.com/rp-rs/rp-hal/tree/main/rp2040-hal/examples/uart.rs) for a more complete example
 //! ```no_run
-//! use rp2040_hal::{clocks::init_clocks_and_plls, gpio::{Pins, FunctionUart}, pac, sio::Sio, uart::{self, UartPeripheral}, watchdog::Watchdog};
+//! use rp2040_hal::{Clock, clocks::init_clocks_and_plls, gpio::{Pins, FunctionUart}, pac, sio::Sio, uart::{self, UartPeripheral}, watchdog::Watchdog};
 //!
 //! const XOSC_CRYSTAL_FREQ: u32 = 12_000_000; // Typically found in BSP crates
 //!
@@ -25,7 +25,7 @@
 //! let uart = UartPeripheral::new(peripherals.UART0, pins, &mut peripherals.RESETS)
 //!     .enable(
 //!         uart::common_configs::_9600_8_N_1,
-//!         clocks.peripheral_clock.into(),
+//!         clocks.peripheral_clock.freq(),
 //!     ).unwrap();
 //!
 //! uart.write_full_blocking(b"Hello World!\r\n");