From 8cf83694ae9395b738d0d4ac91e3e9b506a2c573 Mon Sep 17 00:00:00 2001
From: bigmagic <zhaofujin@rt-thread.com>
Date: Tue, 27 Oct 2020 13:18:24 +0800
Subject: [PATCH] add actled biling

---
 bsp/raspberry-pi/raspi4-32/applications/main.c | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/bsp/raspberry-pi/raspi4-32/applications/main.c b/bsp/raspberry-pi/raspi4-32/applications/main.c
index 9664e67d0..15dc74dc5 100644
--- a/bsp/raspberry-pi/raspi4-32/applications/main.c
+++ b/bsp/raspberry-pi/raspi4-32/applications/main.c
@@ -12,8 +12,20 @@
 #include <rtdevice.h>
 #include <board.h>
 
+#define     ACTLED      (42)
+
 int main(int argc, char** argv)
 {
     rt_kprintf("Hi, this is RT-Thread!!\n");
-    return 0;
+    
+    rt_pin_mode(ACTLED, PIN_MODE_OUTPUT);
+
+    while(1)
+    {
+        rt_pin_write(ACTLED, PIN_HIGH);
+        rt_thread_mdelay(1000);
+        rt_pin_write(ACTLED, PIN_LOW);
+        rt_thread_mdelay(1000);
+    }
+    return RT_EOK;
 }
-- 
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