From 90ade1b311646f0ed83f3f2264537bccca2258d5 Mon Sep 17 00:00:00 2001
From: KingCol13 <48412633+KingCol13@users.noreply.github.com>
Date: Mon, 2 Oct 2023 20:10:52 +0100
Subject: [PATCH] Add wait for DHCP in rp wifi_tcp_server

---
 examples/rp/src/bin/wifi_tcp_server.rs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/examples/rp/src/bin/wifi_tcp_server.rs b/examples/rp/src/bin/wifi_tcp_server.rs
index 20a92b6e..64cf9517 100644
--- a/examples/rp/src/bin/wifi_tcp_server.rs
+++ b/examples/rp/src/bin/wifi_tcp_server.rs
@@ -18,7 +18,7 @@ use embassy_rp::bind_interrupts;
 use embassy_rp::gpio::{Level, Output};
 use embassy_rp::peripherals::{DMA_CH0, PIN_23, PIN_25, PIO0};
 use embassy_rp::pio::{InterruptHandler, Pio};
-use embassy_time::Duration;
+use embassy_time::{Duration, Timer};
 use embedded_io_async::Write;
 use static_cell::make_static;
 use {defmt_rtt as _, panic_probe as _};
@@ -102,6 +102,13 @@ async fn main(spawner: Spawner) {
         }
     }
 
+    // Wait for DHCP, not necessary when using static IP
+    info!("waiting for DHCP...");
+    while !stack.is_config_up() {
+        Timer::after(Duration::from_millis(100)).await;
+    }
+    info!("DHCP is now up!");
+
     // And now we can use it!
 
     let mut rx_buffer = [0; 4096];