From aa3fe8fd2023e02a7c7ea22ea43533a49ccf23dc Mon Sep 17 00:00:00 2001
From: Nic0w <nico.broquet@gmail.com>
Date: Sun, 25 Apr 2021 20:25:29 +0200
Subject: [PATCH] Disable the UART for real when disabling UART.

---
 rp2040-hal/src/uart.rs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/rp2040-hal/src/uart.rs b/rp2040-hal/src/uart.rs
index d04b054..f68ac21 100644
--- a/rp2040-hal/src/uart.rs
+++ b/rp2040-hal/src/uart.rs
@@ -184,6 +184,15 @@ impl<D: UARTDevice> UARTPeripheral<Enabled, D> {
 
     /// Disable this UART Peripheral, falling back to the Disabled state.
     pub fn disable(self) -> UARTPeripheral<Disabled, D> {
+
+        // Disable the UART, both TX and RX
+        self.device.uartcr.write(|w| {
+            w.uarten().clear_bit();
+            w.txe().clear_bit();
+            w.rxe().clear_bit();
+            w
+        });
+
         self.transition(Disabled)
     }