From 49447b2738a874071a2a4bb61b3e0c2af6be989f Mon Sep 17 00:00:00 2001
From: guowenxue <guowenxue@gmail.com>
Date: Wed, 08 Oct 2025 19:31:43 +0800
Subject: [PATCH] WS2812B Led灯带程序

---
 Core/Src/board/miscdev.h |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)

diff --git a/Core/Src/board/miscdev.h b/Core/Src/board/miscdev.h
index 676d6a0..82a45ca 100644
--- a/Core/Src/board/miscdev.h
+++ b/Core/Src/board/miscdev.h
@@ -99,4 +99,16 @@
 
 extern int adc_sample_lux_noisy(uint32_t *lux, uint32_t *noisy);
 
+/*
+ *+----------------------------+
+ *|  Timer Buzzer/delay API    |
+ *+----------------------------+
+ */
+
+/* Max to 60000 us */
+extern void udelay(uint16_t us);
+
+/* Turn buzzer on for $times */
+extern void beep_start(uint16_t times, uint16_t interval);
+
 #endif /* __MISCDEV_H */

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