Merge pull request #3714 from elagil/stm32h5_ucpd_example

Fix/clean up STM32H5 UCPD example

1 files changed, 4 insertions, 3 deletions

diff --git a/examples/stm32h5/src/bin/usb_c_pd.rs b/examples/stm32h5/src/bin/usb_c_pd.rs
index 00cb3b3da..acb03e498 100644
--- a/examples/stm32h5/src/bin/usb_c_pd.rs
+++ b/examples/stm32h5/src/bin/usb_c_pd.rs
@@ -57,13 +57,14 @@ async fn main(_spawner: Spawner) {
 
     info!("Hello World!");
 
+    let mut ucpd = Ucpd::new(p.UCPD1, Irqs {}, p.PB13, p.PB14, Default::default());
+    ucpd.cc_phy().set_pull(CcPull::Sink);
+
     // This pin controls the dead-battery mode on the attached TCPP01-M12.
     // If low, TCPP01-M12 disconnects CC lines and presents dead-battery resistance on CC lines, thus set high.
+    // Must only be set after the CC pull is established.
     let _tcpp01_m12_ndb = Output::new(p.PA9, embassy_stm32::gpio::Level::High, embassy_stm32::gpio::Speed::Low);
 
-    let mut ucpd = Ucpd::new(p.UCPD1, Irqs {}, p.PB13, p.PB14, Default::default());
-    ucpd.cc_phy().set_pull(CcPull::Sink);
-
     info!("Waiting for USB connection...");
     let cable_orientation = wait_attached(ucpd.cc_phy()).await;
     info!("USB cable connected, orientation: {}", cable_orientation);