From 99a17be67107c7b77b1e175d85392c6f5e40a403 Mon Sep 17 00:00:00 2001
From: Paul Diaconescu <paul.diaconescu@svt.se>
Date: Thu, 25 Feb 2021 23:03:14 +0100
Subject: [PATCH] Document that compilation target must be added with rustup

---
 README.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/README.md b/README.md
index 18affb9..1900658 100644
--- a/README.md
+++ b/README.md
@@ -74,6 +74,13 @@ In `.cargo/config.toml`, pick the right compilation target for your board.
 +target = "thumbv7em-none-eabihf" # Cortex-M4F (with FPU)
 ```
 
+Add the target with rustup.
+
+``` console
+$ rustup target add thumbv7em-none-eabihf
+```
+
+
 #### 4. Add a HAL as a dependency
 
 In `Cargo.toml`, list the Hardware Abstraction Layer (HAL) for your board as a dependency.