From 9611a8189858046f3adae68a996ac6eed661f8a5 Mon Sep 17 00:00:00 2001
From: Pol Henarejos <pol.henarejos@cttc.es>
Date: Mon, 1 Jun 2026 13:17:10 +0200
Subject: [PATCH] Add core0 loop yield hint

---
 src/main.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/main.c b/src/main.c
index d94e869..89385c7 100644
--- a/src/main.c
+++ b/src/main.c
@@ -132,6 +132,10 @@ static void core0_loop(void *arg) {
         hwrng_task();
         flash_task();
         button_task();
+#ifdef PICO_PLATFORM
+        // Avoid a pure busy loop on core0; gives the system a scheduling hint.
+        tight_loop_contents();
+#endif
 #ifdef ESP_PLATFORM
         vTaskDelay(pdMS_TO_TICKS(10));
 #endif