stm32F4x 在没有调试器的情况下，完成自身调试

main.c

#include "lcd.h"

<span style="font-family: Arial, Helvetica, sans-serif;">LCD_Init(); // 屏幕初始化</span>

<span style="font-family: Arial, Helvetica, sans-serif;">
</span>

<span style="font-family: Arial, Helvetica, sans-serif;"> 然后在代码中间插入：</span>

<span style="font-family: Arial, Helvetica, sans-serif;">
</span>

<span style="font-family: Arial, Helvetica, sans-serif;"><span style="white-space:pre">	</span>BRUSH_COLOR=BLACK;// 设置字体为黑色，这个必须有不然有可能不显示。</span>

<span style="font-family: Arial, Helvetica, sans-serif;">        // 这样就可以显示调试的变量了
<span style="white-space:pre">	</span>LCD_DisplayString(30,150,16,"debug:");
</span>