From 70edade57779de06102234bc5231b8e32d86babb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=B8=8D=E5=90=83=E6=B2=B9=E7=82=B8=E9=B8=A1?=
 <1425962791@qq.com>
Date: Mon, 16 Mar 2026 09:23:09 +0800
Subject: [PATCH] =?UTF-8?q?=E5=8A=A0=E5=85=A5=E7=AD=89=E5=BE=85?=
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---
 software/Power_Pico/BSP/LCD/lcd.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/software/Power_Pico/BSP/LCD/lcd.c b/software/Power_Pico/BSP/LCD/lcd.c
index 9c10cbf..50fb138 100644
--- a/software/Power_Pico/BSP/LCD/lcd.c
+++ b/software/Power_Pico/BSP/LCD/lcd.c
@@ -71,6 +71,8 @@ void HAL_SPI_TxCpltCallback(SPI_HandleTypeDef *hspi)
 {
     if (hspi->Instance == SPI2)
     {
+		// 确保最后一位数据离开 STM32 的移位寄存器
+        while (hspi->Instance->SR & SPI_FLAG_BSY);
         // 通知 LVGL 渲染结束，执行回调函数
         if (lcd_ready_cb) {
             LCD_CallbackFunc_t func = (LCD_CallbackFunc_t)lcd_ready_cb;