From d939f0cf337d7638783deaecd0257e4b7e6aff1d Mon Sep 17 00:00:00 2001
From: Andelf <andelf@gmail.com>
Date: Sun, 24 Nov 2024 23:58:35 +0800
Subject: [PATCH] wip: fix demo build

---
 examples/hpm6750evkmini/src/bin/raw_pwm.rs    | 9 ++++++---
 examples/hpm6750evkmini/src/bin/spi_st7789.rs | 2 +-
 examples/hpm6750evkmini/src/bin/uart_async.rs | 2 +-
 examples/hpm6750evkmini/src/bin/usb.rs        | 2 +-
 4 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/examples/hpm6750evkmini/src/bin/raw_pwm.rs b/examples/hpm6750evkmini/src/bin/raw_pwm.rs
index b0edb76..5a16006 100644
--- a/examples/hpm6750evkmini/src/bin/raw_pwm.rs
+++ b/examples/hpm6750evkmini/src/bin/raw_pwm.rs
@@ -3,6 +3,8 @@
 #![feature(type_alias_impl_trait)]
 #![feature(impl_trait_in_assoc_type)]
 
+use core::ptr::addr_of_mut;
+
 use assign_resources::assign_resources;
 use embassy_time::Delay;
 use embedded_hal::delay::DelayNs;
@@ -17,14 +19,15 @@ use {defmt_rtt as _, hpm_hal as hal};
 const BOARD_NAME: &str = "HPM5300EVK";
 const BANNER: &str = include_str!("../../../assets/BANNER");
 
+static mut UART: Option<hal::uart::Uart<'static, Blocking>> = None;
+
 macro_rules! println {
     ($($arg:tt)*) => {
-        let _ = writeln!(unsafe {UART.as_mut().unwrap()}, $($arg)*);
+        let uart = unsafe { (&mut *(&raw mut UART)).as_mut().unwrap()};
+        let _ = writeln!(uart , $($arg)*);
     };
 }
 
-static mut UART: Option<hal::uart::Uart<'static, Blocking>> = None;
-
 assign_resources! {
     leds: Led {
         r: PB19, // PWM1, CH0
diff --git a/examples/hpm6750evkmini/src/bin/spi_st7789.rs b/examples/hpm6750evkmini/src/bin/spi_st7789.rs
index b039050..34b8b9f 100644
--- a/examples/hpm6750evkmini/src/bin/spi_st7789.rs
+++ b/examples/hpm6750evkmini/src/bin/spi_st7789.rs
@@ -22,7 +22,7 @@ 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/hpm6750evkmini/src/bin/uart_async.rs b/examples/hpm6750evkmini/src/bin/uart_async.rs
index 5a14421..46e8ea4 100644
--- a/examples/hpm6750evkmini/src/bin/uart_async.rs
+++ b/examples/hpm6750evkmini/src/bin/uart_async.rs
@@ -57,7 +57,7 @@ async fn main(spawner: Spawner) -> ! {
     writeln!(uart, "Hello DMA => {:08x}\r\n", hal::pac::HDMA.int_status().read().0).unwrap();
 
     uart.write(b"Hello Async World!\r\n").await.unwrap();
-    uart.write(b"Type something: ").await.unwrap();
+    uart.write(b"Type something(4 byte buf): ").await.unwrap();
 
     let mut buf = [0u8; 4];
 
diff --git a/examples/hpm6750evkmini/src/bin/usb.rs b/examples/hpm6750evkmini/src/bin/usb.rs
index 91b32fc..5d96c2e 100644
--- a/examples/hpm6750evkmini/src/bin/usb.rs
+++ b/examples/hpm6750evkmini/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>;