From 5d4809c50702adc40e98b360cc89723df30bd4bf Mon Sep 17 00:00:00 2001
From: Aditya Naik
Date: Wed, 10 Jun 2020 15:23:15 -0400
Subject: Port macros

---
 ports/stm32f4/src/port.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/ports/stm32f4/src/port.h b/ports/stm32f4/src/port.h
index 5007dee..ffbbe9e 100644
--- a/ports/stm32f4/src/port.h
+++ b/ports/stm32f4/src/port.h
@@ -4,4 +4,9 @@
  *
 */
 
+#ifndef __PORT_H
+#define __PORT_H
+
 #include "stm32f4xx_hal.h"
+
+#endif
-- 
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