8 files changed, 53 insertions, 12 deletions

diff --git a/examples/boot/bootloader/nrf/Cargo.toml b/examples/boot/bootloader/nrf/Cargo.toml
index 9d5d51a13..c2e8bbe53 100644
--- a/examples/boot/bootloader/nrf/Cargo.toml
+++ b/examples/boot/bootloader/nrf/Cargo.toml
@@ -12,7 +12,7 @@ defmt-rtt = { version = "0.4", optional = true }
 embassy-nrf = { path = "../../../../embassy-nrf", features = [] }
 embassy-boot-nrf = { path = "../../../../embassy-boot-nrf" }
 cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-single-core"] }
-embassy-sync = { version = "0.6.0", path = "../../../../embassy-sync" }
+embassy-sync = { version = "0.6.1", path = "../../../../embassy-sync" }
 cortex-m-rt = { version = "0.7" }
 cfg-if = "1.0.0"
 
diff --git a/examples/boot/bootloader/nrf/src/main.rs b/examples/boot/bootloader/nrf/src/main.rs
index 67c700437..b849a0df3 100644
--- a/examples/boot/bootloader/nrf/src/main.rs
+++ b/examples/boot/bootloader/nrf/src/main.rs
@@ -8,7 +8,7 @@ use cortex_m_rt::{entry, exception};
 use defmt_rtt as _;
 use embassy_boot_nrf::*;
 use embassy_nrf::nvmc::Nvmc;
-use embassy_nrf::wdt;
+use embassy_nrf::wdt::{self, HaltConfig, SleepConfig};
 use embassy_sync::blocking_mutex::Mutex;
 
 #[entry]
@@ -25,8 +25,8 @@ fn main() -> ! {
 
     let mut wdt_config = wdt::Config::default();
     wdt_config.timeout_ticks = 32768 * 5; // timeout seconds
-    wdt_config.run_during_sleep = true;
-    wdt_config.run_during_debug_halt = false;
+    wdt_config.action_during_sleep = SleepConfig::RUN;
+    wdt_config.action_during_debug_halt = HaltConfig::PAUSE;
 
     let flash = WatchdogFlash::start(Nvmc::new(p.NVMC), p.WDT, wdt_config);
     let flash = Mutex::new(RefCell::new(flash));
diff --git a/examples/boot/bootloader/rp/Cargo.toml b/examples/boot/bootloader/rp/Cargo.toml
index 9df396e5e..24df3da82 100644
--- a/examples/boot/bootloader/rp/Cargo.toml
+++ b/examples/boot/bootloader/rp/Cargo.toml
@@ -11,7 +11,7 @@ defmt-rtt = { version = "0.4", optional = true }
 
 embassy-rp = { path = "../../../../embassy-rp", features = ["rp2040"] }
 embassy-boot-rp = { path = "../../../../embassy-boot-rp" }
-embassy-sync = { version = "0.6.0", path = "../../../../embassy-sync" }
+embassy-sync = { version = "0.6.1", path = "../../../../embassy-sync" }
 embassy-time = { path = "../../../../embassy-time", features = [] }
 
 cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-single-core"] }
diff --git a/examples/boot/bootloader/stm32-dual-bank/Cargo.toml b/examples/boot/bootloader/stm32-dual-bank/Cargo.toml
index b91b05412..81e0026c6 100644
--- a/examples/boot/bootloader/stm32-dual-bank/Cargo.toml
+++ b/examples/boot/bootloader/stm32-dual-bank/Cargo.toml
@@ -15,7 +15,7 @@ cortex-m = { version = "0.7.6", features = [
   "inline-asm",
   "critical-section-single-core",
 ] }
-embassy-sync = { version = "0.6.0", path = "../../../../embassy-sync" }
+embassy-sync = { version = "0.6.1", path = "../../../../embassy-sync" }
 cortex-m-rt = { version = "0.7" }
 embedded-storage = "0.3.1"
 embedded-storage-async = "0.4.0"
diff --git a/examples/boot/bootloader/stm32/Cargo.toml b/examples/boot/bootloader/stm32/Cargo.toml
index 541186949..f35e4e713 100644
--- a/examples/boot/bootloader/stm32/Cargo.toml
+++ b/examples/boot/bootloader/stm32/Cargo.toml
@@ -12,7 +12,7 @@ defmt-rtt = { version = "0.4", optional = true }
 embassy-stm32 = { path = "../../../../embassy-stm32", features = [] }
 embassy-boot-stm32 = { path = "../../../../embassy-boot-stm32" }
 cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-single-core"] }
-embassy-sync = { version = "0.6.0", path = "../../../../embassy-sync" }
+embassy-sync = { version = "0.6.1", path = "../../../../embassy-sync" }
 cortex-m-rt = { version = "0.7" }
 embedded-storage = "0.3.1"
 embedded-storage-async = "0.4.0"
diff --git a/examples/boot/bootloader/stm32wb-dfu/Cargo.toml b/examples/boot/bootloader/stm32wb-dfu/Cargo.toml
index 050b672ce..1431e7cc3 100644
--- a/examples/boot/bootloader/stm32wb-dfu/Cargo.toml
+++ b/examples/boot/bootloader/stm32wb-dfu/Cargo.toml
@@ -12,7 +12,7 @@ defmt-rtt = { version = "0.4", optional = true }
 embassy-stm32 = { path = "../../../../embassy-stm32", features = [] }
 embassy-boot-stm32 = { path = "../../../../embassy-boot-stm32" }
 cortex-m = { version = "0.7.6", features = ["inline-asm", "critical-section-single-core"] }
-embassy-sync = { version = "0.6.0", path = "../../../../embassy-sync" }
+embassy-sync = { version = "0.6.1", path = "../../../../embassy-sync" }
 cortex-m-rt = { version = "0.7" }
 embedded-storage = "0.3.1"
 embedded-storage-async = "0.4.0"
diff --git a/examples/boot/bootloader/stm32wb-dfu/README.md b/examples/boot/bootloader/stm32wb-dfu/README.md
index d5c6ea57c..3c5f268a0 100644
--- a/examples/boot/bootloader/stm32wb-dfu/README.md
+++ b/examples/boot/bootloader/stm32wb-dfu/README.md
@@ -1,11 +1,37 @@
 # Bootloader for STM32
 
-The bootloader uses `embassy-boot` to interact with the flash.
+This bootloader implementation uses `embassy-boot` and `embassy-usb-dfu` to manage firmware updates and interact with the flash memory on STM32WB55 devices.
 
-# Usage
+## Prerequisites
 
-Flash the bootloader
+- Rust toolchain with `cargo` installed
+- `cargo-flash` for flashing the bootloader
+- `dfu-util` for firmware updates
+- `cargo-binutils` for binary generation
+
+## Usage
+
+### 1. Flash the Bootloader
+
+First, flash the bootloader to your device:
 
 ```
 cargo flash --features embassy-stm32/stm32wb55rg --release --chip STM32WB55RGVx
 ```
+
+### 2. Build and Flash Application
+
+Generate your application binary and flash it using DFU:
+
+```
+cargo objcopy --release -- -O binary fw.bin
+dfu-util -d c0de:cafe -w -D fw.bin
+```
+
+## Troubleshooting
+
+- Make sure your device is in DFU mode before flashing
+- Verify the USB VID:PID matches your device (c0de:cafe)
+- Check USB connections if the device is not detected
+- Make sure the transfer size option of `dfu-util` matches the bootloader configuration. By default, `dfu-util` will use the transfer size reported by the device, but you can override it with the `-t` option if needed.
+- Make sure `control_buf` size is larger than or equal to the `usb_dfu` `BLOCK_SIZE` parameter (in this example, both are set to 4096 bytes).
diff --git a/examples/boot/bootloader/stm32wb-dfu/src/main.rs b/examples/boot/bootloader/stm32wb-dfu/src/main.rs
index 093b39f9d..b09d53cf0 100644
--- a/examples/boot/bootloader/stm32wb-dfu/src/main.rs
+++ b/examples/boot/bootloader/stm32wb-dfu/src/main.rs
@@ -12,7 +12,7 @@ use embassy_stm32::rcc::WPAN_DEFAULT;
 use embassy_stm32::usb::Driver;
 use embassy_stm32::{bind_interrupts, peripherals, usb};
 use embassy_sync::blocking_mutex::Mutex;
-use embassy_usb::Builder;
+use embassy_usb::{msos, Builder};
 use embassy_usb_dfu::consts::DfuAttributes;
 use embassy_usb_dfu::{usb_dfu, Control, ResetImmediate};
 
@@ -20,6 +20,9 @@ bind_interrupts!(struct Irqs {
     USB_LP => usb::InterruptHandler<peripherals::USB>;
 });
 
+// This is a randomly generated GUID to allow clients on Windows to find our device
+const DEVICE_INTERFACE_GUIDS: &[&str] = &["{EAA9A5DC-30BA-44BC-9232-606CDC875321}"];
+
 #[entry]
 fn main() -> ! {
     let mut config = embassy_stm32::Config::default();
@@ -62,6 +65,18 @@ fn main() -> ! {
             &mut control_buf,
         );
 
+        // We add MSOS headers so that the device automatically gets assigned the WinUSB driver on Windows.
+        // Otherwise users need to do this manually using a tool like Zadig.
+        //
+        // It seems it is important for the DFU class that these headers be on the Device level.
+        //
+        builder.msos_descriptor(msos::windows_version::WIN8_1, 2);
+        builder.msos_feature(msos::CompatibleIdFeatureDescriptor::new("WINUSB", ""));
+        builder.msos_feature(msos::RegistryPropertyFeatureDescriptor::new(
+            "DeviceInterfaceGUIDs",
+            msos::PropertyData::RegMultiSz(DEVICE_INTERFACE_GUIDS),
+        ));
+
         usb_dfu::<_, _, _, ResetImmediate, 4096>(&mut builder, &mut state);
 
         let mut dev = builder.build();