From 9d570cd579be2d4d16395722bc85fe9f77f1d318 Mon Sep 17 00:00:00 2001
From: Jonathan <74002342+jd-imi@users.noreply.github.com>
Date: Mon, 26 Aug 2024 14:40:47 +0200
Subject: [PATCH] Add shield option explanation to ports/stm32f4xx/README.md
 (#749)

---
 ports/stm32f4xx/README.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/ports/stm32f4xx/README.md b/ports/stm32f4xx/README.md
index ef48fb99..4af9eb2f 100644
--- a/ports/stm32f4xx/README.md
+++ b/ports/stm32f4xx/README.md
@@ -82,6 +82,11 @@ For debugging, install these tools:
     sudo apt-get update -qq
     sudo apt-get install -qq openocd gdb-multiarch
 
+##### Shield option
+
+If, instead of the DFR0259 shield for RS485, the build is intended for the
+linksprite shield, `make SHIELD=linksprite` can be used.
+
 #### CMake & Visual Studio Code
 
 There is a CMakeLists.txt file that enables building the project with the