8 files changed, 115 insertions, 18 deletions

diff --git a/examples/stm32f4/src/bin/spi.rs b/examples/stm32f4/src/bin/spi.rs
index dda0ee4ed..aa48ceed5 100644
--- a/examples/stm32f4/src/bin/spi.rs
+++ b/examples/stm32f4/src/bin/spi.rs
@@ -61,7 +61,7 @@ fn main() -> ! {
     let mut cs = Output::new(p.PE0, Level::High, Speed::VeryHigh);
 
     loop {
-        let mut buf = [0x0A; 4];
+        let mut buf = [0x0Au8; 4];
         unwrap!(cs.set_low());
         unwrap!(spi.transfer(&mut buf));
         unwrap!(cs.set_high());
diff --git a/examples/stm32f4/src/bin/usart.rs b/examples/stm32f4/src/bin/usart.rs
index 42f154b05..31525036a 100644
--- a/examples/stm32f4/src/bin/usart.rs
+++ b/examples/stm32f4/src/bin/usart.rs
@@ -12,6 +12,7 @@ use cortex_m::prelude::_embedded_hal_blocking_serial_Write;
 use embassy::executor::Executor;
 use embassy::time::Clock;
 use embassy::util::Forever;
+use embassy_stm32::dma::NoDma;
 use embassy_stm32::usart::{Config, Uart};
 use example_common::*;
 
@@ -23,7 +24,7 @@ async fn main_task() {
     let p = embassy_stm32::init(Default::default());
 
     let config = Config::default();
-    let mut usart = Uart::new(p.USART3, p.PD9, p.PD8, config);
+    let mut usart = Uart::new(p.USART3, p.PD9, p.PD8, NoDma, NoDma, config);
 
     usart.bwrite_all(b"Hello Embassy World!\r\n").unwrap();
     info!("wrote Hello, starting echo");
diff --git a/examples/stm32f4/src/bin/usart_dma.rs b/examples/stm32f4/src/bin/usart_dma.rs
index 66ca6242b..b578aebca 100644
--- a/examples/stm32f4/src/bin/usart_dma.rs
+++ b/examples/stm32f4/src/bin/usart_dma.rs
@@ -13,26 +13,25 @@ use cortex_m_rt::entry;
 use embassy::executor::Executor;
 use embassy::time::Clock;
 use embassy::util::Forever;
+use embassy_stm32::dma::NoDma;
 use embassy_stm32::usart::{Config, Uart};
+use embassy_traits::uart::Write as _;
 use example_common::*;
 use heapless::String;
 use stm32f4::stm32f429 as pac;
 
 #[embassy::task]
 async fn main_task() {
-    let mut p = embassy_stm32::init(Default::default());
+    let p = embassy_stm32::init(Default::default());
 
     let config = Config::default();
-    let mut usart = Uart::new(p.USART3, p.PD9, p.PD8, config);
+    let mut usart = Uart::new(p.USART3, p.PD9, p.PD8, p.DMA1_CH3, NoDma, config);
 
     for n in 0u32.. {
         let mut s: String<128> = String::new();
         core::write!(&mut s, "Hello DMA World {}!\r\n", n).unwrap();
 
-        usart
-            .write_dma(&mut p.DMA1_3, s.as_bytes())
-            .await
-            .unwrap();
+        usart.write(s.as_bytes()).await.unwrap();
         info!("wrote DMA");
     }
 }
diff --git a/examples/stm32h7/src/bin/usart.rs b/examples/stm32h7/src/bin/usart.rs
index d8e60158b..143f94491 100644
--- a/examples/stm32h7/src/bin/usart.rs
+++ b/examples/stm32h7/src/bin/usart.rs
@@ -1,4 +1,3 @@
-
 #![no_std]
 #![no_main]
 #![feature(trait_alias)]
@@ -13,12 +12,12 @@ use cortex_m::prelude::_embedded_hal_blocking_serial_Write;
 use embassy::executor::Executor;
 use embassy::time::Clock;
 use embassy::util::Forever;
+use embassy_stm32::dma::NoDma;
 use embassy_stm32::usart::{Config, Uart};
-use embassy_stm32::dma_traits::NoDma;
 use example_common::*;
 
-use stm32h7xx_hal as hal;
 use hal::prelude::*;
+use stm32h7xx_hal as hal;
 
 use cortex_m_rt::entry;
 use stm32h7::stm32h743 as pac;
@@ -60,8 +59,7 @@ fn main() -> ! {
 
     let rcc = pp.RCC.constrain();
 
-    rcc
-        .sys_ck(96.mhz())
+    rcc.sys_ck(96.mhz())
         .pclk1(48.mhz())
         .pclk2(48.mhz())
         .pclk3(48.mhz())
@@ -89,7 +87,6 @@ fn main() -> ! {
         w
     });
 
-
     unsafe { embassy::time::set_clock(&ZeroClock) };
 
     let executor = EXECUTOR.put(Executor::new());
diff --git a/examples/stm32h7/src/bin/usart_dma.rs b/examples/stm32h7/src/bin/usart_dma.rs
new file mode 100644
index 000000000..0073d5c66
--- /dev/null
+++ b/examples/stm32h7/src/bin/usart_dma.rs
@@ -0,0 +1,100 @@
+#![no_std]
+#![no_main]
+#![feature(trait_alias)]
+#![feature(min_type_alias_impl_trait)]
+#![feature(impl_trait_in_bindings)]
+#![feature(type_alias_impl_trait)]
+#![allow(incomplete_features)]
+
+#[path = "../example_common.rs"]
+mod example_common;
+use core::fmt::Write;
+use embassy::executor::Executor;
+use embassy::time::Clock;
+use embassy::util::Forever;
+use embassy_stm32::dma::NoDma;
+use embassy_stm32::usart::{Config, Uart};
+use example_common::*;
+use embassy_traits::uart::Write as _Write;
+
+use hal::prelude::*;
+use stm32h7xx_hal as hal;
+
+use cortex_m_rt::entry;
+use stm32h7::stm32h743 as pac;
+use heapless::String;
+
+#[embassy::task]
+async fn main_task() {
+    let p = embassy_stm32::init(Default::default());
+
+    let config = Config::default();
+    let mut usart = Uart::new(p.UART7, p.PF6, p.PF7, p.DMA1_CH0, NoDma, config);
+
+    for n in 0u32.. {
+        let mut s: String<128> = String::new();
+        core::write!(&mut s, "Hello DMA World {}!\r\n", n).unwrap();
+
+        usart.write(s.as_bytes()).await.ok();
+
+        info!("wrote DMA");
+    }
+
+}
+
+struct ZeroClock;
+
+impl Clock for ZeroClock {
+    fn now(&self) -> u64 {
+        0
+    }
+}
+
+static EXECUTOR: Forever<Executor> = Forever::new();
+
+#[entry]
+fn main() -> ! {
+    info!("Hello World!");
+
+    let pp = pac::Peripherals::take().unwrap();
+
+    let pwrcfg = pp.PWR.constrain().freeze();
+
+    let rcc = pp.RCC.constrain();
+
+    rcc.sys_ck(96.mhz())
+        .pclk1(48.mhz())
+        .pclk2(48.mhz())
+        .pclk3(48.mhz())
+        .pclk4(48.mhz())
+        .pll1_q_ck(48.mhz())
+        .freeze(pwrcfg, &pp.SYSCFG);
+
+    let pp = unsafe { pac::Peripherals::steal() };
+
+    pp.DBGMCU.cr.modify(|_, w| {
+        w.dbgsleep_d1().set_bit();
+        w.dbgstby_d1().set_bit();
+        w.dbgstop_d1().set_bit();
+        w.d1dbgcken().set_bit();
+        w
+    });
+
+    pp.RCC.ahb4enr.modify(|_, w| {
+        w.gpioaen().set_bit();
+        w.gpioben().set_bit();
+        w.gpiocen().set_bit();
+        w.gpioden().set_bit();
+        w.gpioeen().set_bit();
+        w.gpiofen().set_bit();
+        w
+    });
+
+    unsafe { embassy::time::set_clock(&ZeroClock) };
+
+    let executor = EXECUTOR.put(Executor::new());
+
+    executor.run(|spawner| {
+        unwrap!(spawner.spawn(main_task()));
+    })
+}
diff --git a/examples/stm32l4/src/bin/spi.rs b/examples/stm32l4/src/bin/spi.rs
index 45ccfcebc..7cac01fd4 100644
--- a/examples/stm32l4/src/bin/spi.rs
+++ b/examples/stm32l4/src/bin/spi.rs
@@ -57,7 +57,7 @@ fn main() -> ! {
     let mut cs = Output::new(p.PE0, Level::High, Speed::VeryHigh);
 
     loop {
-        let mut buf = [0x0A; 4];
+        let mut buf = [0x0Au8; 4];
         unwrap!(cs.set_low());
         unwrap!(spi.transfer(&mut buf));
         unwrap!(cs.set_high());
diff --git a/examples/stm32l4/src/bin/usart.rs b/examples/stm32l4/src/bin/usart.rs
index e9a44f151..f572b1eff 100644
--- a/examples/stm32l4/src/bin/usart.rs
+++ b/examples/stm32l4/src/bin/usart.rs
@@ -13,7 +13,7 @@ use cortex_m_rt::entry;
 use embassy::executor::Executor;
 use embassy::time::Clock;
 use embassy::util::Forever;
-use embassy_stm32::dma_traits::NoDma;
+use embassy_stm32::dma::NoDma;
 use embassy_stm32::pac;
 use embassy_stm32::usart::{Config, Uart};
 use example_common::*;
diff --git a/examples/stm32l4/src/bin/usart_dma.rs b/examples/stm32l4/src/bin/usart_dma.rs
index 1eadd3ad4..e325e3da3 100644
--- a/examples/stm32l4/src/bin/usart_dma.rs
+++ b/examples/stm32l4/src/bin/usart_dma.rs
@@ -13,7 +13,7 @@ use cortex_m_rt::entry;
 use embassy::executor::Executor;
 use embassy::time::Clock;
 use embassy::util::Forever;
-use embassy_stm32::dma_traits::NoDma;
+use embassy_stm32::dma::NoDma;
 use embassy_stm32::pac;
 use embassy_stm32::usart::{Config, Uart};
 use embassy_traits::uart::Write as _;
@@ -25,7 +25,7 @@ async fn main_task() {
     let p = embassy_stm32::init(Default::default());
 
     let config = Config::default();
-    let mut usart = Uart::new(p.UART4, p.PA1, p.PA0, p.DMA1_3, NoDma, config);
+    let mut usart = Uart::new(p.UART4, p.PA1, p.PA0, p.DMA1_CH3, NoDma, config);
 
     for n in 0u32.. {
         let mut s: String<128> = String::new();