Merge pull request #2779 from barnabywalters/patch-1

Add VBUS detection blackpill comment

examples/stm32f4/src/bin/usb_hid_keyboard.rs

@@ -49,6 +49,7 @@ async fn main(_spawner: Spawner) {
     // Create the driver, from the HAL.
     let mut ep_out_buffer = [0u8; 256];
     let mut config = embassy_stm32::usb::Config::default();
+    // If the board you’re using doesn’t have the VBUS pin wired up correctly for detecting the USB bus voltage (e.g. on the f4 blackpill board), set this to false
     config.vbus_detection = true;
     let driver = Driver::new_fs(p.USB_OTG_FS, Irqs, p.PA12, p.PA11, &mut ep_out_buffer, config);