1、功能说明

此例程展示通过外部触发中断，控制 LED 闪烁

2、使用环境

软件开发环境：
IDE工具：KEIL MDK-ARM V5.34.0.0
         IAR EWARM 8.50.1
  
/* 硬件环境：工程对应的开发硬件平台 */
开发板：N32G430C8L7-STB V1.0    

3、使用说明

/* 描述相关模块配置方法；例如:时钟，I/O等 */
SystemClock：128MHz
GPIO：PA5 选择作为外部中断入口，PA7 控制 LED(PD3) 闪烁


/* 描述Demo的测试步骤和现象 */
1.编译后下载程序复位运行；
2.按下松开 KEY2 按键，LED 闪烁；

4、注意事项 无

1. Function description This routine shows an external trigger interrupt to control the LED flashing

2. Use environment Software development environment: KEIL MDK-ARM V5.34.0.0
   IAR EWARM 8.50.1 Hardware environment: Developed based on the evaluation board N32G430C8L7-STB V1.0

3. Instructions for use

   /* Describe related module configuration methods; for example: clock, I/O, etc. */ SystemClock: 128MHz GPIO: PA5 is selected as external interrupt entry, PA7 controls LED(D3) to blink

   /* Describe the test steps and phenomena of the Demo */

   1. After compiling, download the program to reset and run;
   2. Press and release the KEY2 button, the LED flashes;

4. Matters needing attention none