diff --git a/examples/hpm5300evk/src/bin/adc.rs b/examples/hpm5300evk/src/bin/adc.rs
index 7b32299..504f276 100644
--- a/examples/hpm5300evk/src/bin/adc.rs
+++ b/examples/hpm5300evk/src/bin/adc.rs
@@ -58,11 +58,17 @@ async fn main(spawner: Spawner) -> ! {
     loop {
         Timer::after_millis(200).await;
 
-        //        defmt::info!("tick {}", MCHTMR.mtime().read());
+        // let n = adc.blocking_read(&mut adc_ch7_pin, Default::default());
+        let mut sum = 0;
+        for _ in 0..1000 {
+            let n = adc.blocking_read(&mut adc_ch7_pin, Default::default());
+            sum += n as u32;
+        }
+        let n = sum / 1000;
 
-        let n = adc.blocking_read(&mut adc_ch7_pin, Default::default());
+        let voltage = (n as u32) * 3300 / 65536;
 
-        println!("ADC0_CH7: {}", n);
+        println!("ADC0_CH7: {} {}mV", n, voltage);
     }
 }
 
diff --git a/examples/hpm5300evk/src/bin/blinky.rs b/examples/hpm5300evk/src/bin/blinky.rs
index c89ab6b..d9bbb17 100644
--- a/examples/hpm5300evk/src/bin/blinky.rs
+++ b/examples/hpm5300evk/src/bin/blinky.rs
@@ -4,7 +4,7 @@
 use embedded_hal::delay::DelayNs;
 use hal::gpio::{Level, Output, Speed};
 use riscv::delay::McycleDelay;
-use {defmt_rtt as _, hpm_hal as hal, riscv_rt as _};
+use {defmt_rtt as _, hpm_hal as hal};
 
 #[hal::entry]
 fn main() -> ! {
diff --git a/examples/hpm5300evk/src/bin/blocking_uart_tx.rs b/examples/hpm5300evk/src/bin/blocking_uart_tx.rs
index adda6d7..6a08a96 100644
--- a/examples/hpm5300evk/src/bin/blocking_uart_tx.rs
+++ b/examples/hpm5300evk/src/bin/blocking_uart_tx.rs
@@ -6,7 +6,7 @@ use embedded_io::Write as _; // `writeln!` provider
 use hpm_hal::gpio::{Level, Output, Speed};
 use hpm_hal::uart::UartTx;
 use riscv::delay::McycleDelay;
-use {defmt_rtt as _, hpm_hal as hal, panic_halt as _, riscv_rt as _};
+use {defmt_rtt as _, hpm_hal as hal, panic_halt as _};
 
 const BANNER: &str = include_str!("../../../assets/BANNER");
 
diff --git a/examples/hpm5300evk/src/bin/button.rs b/examples/hpm5300evk/src/bin/button.rs
index 945a124..b916f36 100644
--- a/examples/hpm5300evk/src/bin/button.rs
+++ b/examples/hpm5300evk/src/bin/button.rs
@@ -4,9 +4,9 @@
 use embedded_hal::delay::DelayNs;
 use hpm_hal::gpio::{Input, Pull};
 use riscv::delay::McycleDelay;
-use {defmt_rtt as _, hpm_hal as hal, panic_halt as _, riscv_rt as _};
+use {defmt_rtt as _, hpm_hal as hal, panic_halt as _};
 
-#[riscv_rt::entry]
+#[hal::entry]
 fn main() -> ! {
     let p = hal::init(Default::default());
 
diff --git a/examples/hpm5300evk/src/bin/i2c_oled.rs b/examples/hpm5300evk/src/bin/i2c_oled.rs
index aa27552..1a83a9c 100644
--- a/examples/hpm5300evk/src/bin/i2c_oled.rs
+++ b/examples/hpm5300evk/src/bin/i2c_oled.rs
@@ -13,7 +13,7 @@ use hal::gpio::{Level, Output, Speed};
 use hal::i2c::I2c;
 use hal::mode::Blocking;
 use riscv::delay::McycleDelay;
-use {defmt_rtt as _, hpm_hal as hal, riscv_rt as _};
+use {defmt_rtt as _, hpm_hal as hal};
 
 const BANNER: &str = include_str!("../../../assets/BANNER");
 
diff --git a/examples/hpm5300evk/src/bin/pll_setting.rs b/examples/hpm5300evk/src/bin/pll_setting.rs
index bafd191..ead9e4b 100644
--- a/examples/hpm5300evk/src/bin/pll_setting.rs
+++ b/examples/hpm5300evk/src/bin/pll_setting.rs
@@ -8,7 +8,7 @@ use hal::pac;
 use hal::uart::UartTx;
 use hpm_hal::time::Hertz;
 use riscv::delay::McycleDelay;
-use {defmt_rtt as _, hpm_hal as hal, panic_halt as _, riscv_rt as _};
+use {defmt_rtt as _, hpm_hal as hal, panic_halt as _};
 
 const BANNER: &str = include_str!("../../../assets/BANNER");
 
diff --git a/examples/hpm5300evk/src/bin/qspi.rs b/examples/hpm5300evk/src/bin/qspi.rs
index 88779af..2db0664 100644
--- a/examples/hpm5300evk/src/bin/qspi.rs
+++ b/examples/hpm5300evk/src/bin/qspi.rs
@@ -23,7 +23,7 @@ use hpm_hal::spi::{
 };
 use hpm_hal::time::Hertz;
 use riscv::delay::McycleDelay;
-use {defmt_rtt as _, hpm_hal as hal, riscv_rt as _};
+use {defmt_rtt as _, hpm_hal as hal};
 
 #[derive(Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash, Debug)]
 pub enum Orientation {
diff --git a/examples/hpm5300evk/src/bin/spi.rs b/examples/hpm5300evk/src/bin/spi.rs
index 419ad6b..2383abe 100644
--- a/examples/hpm5300evk/src/bin/spi.rs
+++ b/examples/hpm5300evk/src/bin/spi.rs
@@ -23,7 +23,7 @@ use hpm_hal::mode::Blocking;
 use hpm_hal::spi::{Config, Spi};
 use hpm_hal::time::Hertz;
 use riscv::delay::McycleDelay;
-use {defmt_rtt as _, hpm_hal as hal, panic_halt as _, riscv_rt as _};
+use {defmt_rtt as _, hpm_hal as hal, panic_halt as _};
 
 pub struct ST7789<
     Spi: SpiDevice,
diff --git a/examples/hpm5300evk/src/bin/tsns.rs b/examples/hpm5300evk/src/bin/tsns.rs
index a6cc7b1..656a917 100644
--- a/examples/hpm5300evk/src/bin/tsns.rs
+++ b/examples/hpm5300evk/src/bin/tsns.rs
@@ -8,7 +8,7 @@ use hal::gpio::{Level, Output, Speed};
 use hal::pac;
 use hpm_hal::time::Hertz;
 use riscv::delay::McycleDelay;
-use {defmt_rtt as _, hpm_hal as hal, riscv_rt as _};
+use {defmt_rtt as _, hpm_hal as hal};
 
 const BANNER: &str = include_str!("../../../assets/BANNER");
 
diff --git a/examples/hpm5300evk/src/bin/usb.rs b/examples/hpm5300evk/src/bin/usb.rs
index 003e3e9..3221109 100644
--- a/examples/hpm5300evk/src/bin/usb.rs
+++ b/examples/hpm5300evk/src/bin/usb.rs
@@ -12,7 +12,7 @@ use embassy_usb::Builder;
 use futures_util::future::join;
 use hal::usb::{Instance, UsbDriver};
 use hpm_hal::{bind_interrupts, peripherals};
-use {defmt_rtt as _, hpm_hal as hal, riscv_rt as _};
+use {defmt_rtt as _, hpm_hal as hal};
 
 bind_interrupts!(struct Irqs {
     USB0 => hal::usb::InterruptHandler<peripherals::USB0>;
diff --git a/examples/hpm5300evk/src/bin/usb_hid.rs b/examples/hpm5300evk/src/bin/usb_hid.rs
index 0b0fa5f..e1f24d7 100644
--- a/examples/hpm5300evk/src/bin/usb_hid.rs
+++ b/examples/hpm5300evk/src/bin/usb_hid.rs
@@ -16,7 +16,7 @@ use hpm_hal::gpio::{Input, Pull};
 use hpm_hal::{bind_interrupts, peripherals};
 use static_cell::StaticCell;
 use usbd_hid::descriptor::{KeyboardReport, SerializedDescriptor};
-use {defmt_rtt as _, hpm_hal as hal, riscv_rt as _};
+use {defmt_rtt as _, hpm_hal as hal};
 
 bind_interrupts!(struct Irqs {
     USB0 => hal::usb::InterruptHandler<peripherals::USB0>;