From db30aab5de14decef17dfb98ab96ad89722683b5 Mon Sep 17 00:00:00 2001
From: Greg Mathews <gregdmathews@gmail.com>
Date: Fri, 3 Jan 2020 08:58:25 -0800
Subject: Underscore was missing

This was causing it to not compile on the Adafruit Feather nRF52840 Express for me.
---
 platforms/arm/nrf52/fastpin_arm_nrf52.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/platforms/arm/nrf52/fastpin_arm_nrf52.h b/platforms/arm/nrf52/fastpin_arm_nrf52.h
index 75260004..b761cfa8 100644
--- a/platforms/arm/nrf52/fastpin_arm_nrf52.h
+++ b/platforms/arm/nrf52/fastpin_arm_nrf52.h
@@ -290,7 +290,7 @@ public:
 //     _FL_DEFPIN(47, 47, 1);
 //
 
-#define FL_DEFPIN(ARDUINO_PIN, BOARD_PIN, BOARD_PORT)    \
+#define _FL_DEFPIN(ARDUINO_PIN, BOARD_PIN, BOARD_PORT)    \
     template<> class FastPin<ARDUINO_PIN> :              \
     public _ARMPIN<                                      \
         1u << (BOARD_PIN & 31u),                         \
-- 
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