From 05e3b736989c6278fafc2ab5af895da472c72138 Mon Sep 17 00:00:00 2001
From: Ricardo Quesada <ricardoquesada@gmail.com>
Date: Fri, 20 Dec 2024 09:44:34 -0800
Subject: [PATCH] PICO_BOARD can be overriden with "pico2_w"

---
 docs/plat_picow.md             |  2 ++
 examples/pico_w/CMakeLists.txt |  7 ++++---
 examples/pico_w/README.md      | 12 +++++++++++-
 3 files changed, 17 insertions(+), 4 deletions(-)

diff --git a/docs/plat_picow.md b/docs/plat_picow.md
index 6f1ad122..ae3b3a42 100644
--- a/docs/plat_picow.md
+++ b/docs/plat_picow.md
@@ -18,6 +18,8 @@ You need to install Pico SDK. The instructions are different for Linux/macOS and
 
 === "Pico SDK for Linux / macOS"
 
+Recommended: Use Pico SDK v2.1.0 or newer.
+
     Clone Pico SDK from Github: <https://github.com/raspberrypi/pico-sdk>
 
     ```sh
diff --git a/examples/pico_w/CMakeLists.txt b/examples/pico_w/CMakeLists.txt
index 6f94a1f5..e06ea248 100644
--- a/examples/pico_w/CMakeLists.txt
+++ b/examples/pico_w/CMakeLists.txt
@@ -1,9 +1,10 @@
 cmake_minimum_required(VERSION 3.13)
 
-# PICO_BOARD should be set to 'pico_w', or not set at all.
-if(DEFINED PICO_BOARD AND NOT ${PICO_BOARD} STREQUAL "pico_w")
-    message(FATAL_ERROR "PICO_BOARD must be set to 'pico_w' or not set at all")
+# PICO_BOARD should be set to 'pico_w', 'pico2_w' or not set at all.
+if(DEFINED PICO_BOARD)
+    message(DEBUG, "Using PICO_BOARD ${PICO_BOARD}")
 else()
+    message(VERBOSE, "PICO_BOARD not defined. Using 'pico_w'")
     set(PICO_BOARD "pico_w")
 endif()
 
diff --git a/examples/pico_w/README.md b/examples/pico_w/README.md
index 63e6ffa1..af5eb026 100644
--- a/examples/pico_w/README.md
+++ b/examples/pico_w/README.md
@@ -4,6 +4,8 @@
 
 You need to install Pico SDK. The instructions are different for Linux/macOS and Windows.
 
+Recommended: Use Pico SDK 2.1 or newer.
+
 ### Pico SDK for Linux / macOS
 
 Install Pico SDK: https://github.com/raspberrypi/pico-sdk
@@ -32,6 +34,14 @@ cmake ..
 make -j
 ```
 
+If `PICO_BOARD` is not specified,  it will use `pico_w`. To compile it for Pico 2 W, do:
+
+```sh
+# From the recently crated "build" folder
+cmake -DPICO_BOARD=pico2_w ..
+make -j
+```
+
 Copy `build/bluepad32_picow_example_app.uf2` to Pico W.
 
 Use this guide if you are not sure how to do it:
@@ -43,5 +53,5 @@ Use this guide if you are not sure how to do it:
 - Example code: licensed under Public Domain.
 - Bluepad32: licensed under Apache 2.
 - BTstack:
-  - Commercial license is already paid by the Raspberry Pi foundation, but only when used in a Pico W.
+  - Commercial license is already paid by the Raspberry Pi foundation, but only when used in a Pico W or Pico 2 W.
   - <https://github.com/raspberrypi/pico-sdk/blob/master/src/rp2_common/pico_btstack/LICENSE.RP>
\ No newline at end of file