Pico 1 W angelegt

pico1w/blinky/CMakeLists.txt

@@ -0,0 +1,19 @@
+cmake_minimum_required(VERSION 3.13)
+
+# Pico 1 W: RP2040 + CYW43439. Board-Variable muss vor pico_sdk_import gesetzt sein.
+set(PICO_BOARD pico_w)
+
+include(pico_sdk_import.cmake)
+
+project(blinky C CXX ASM)
+
+pico_sdk_init()
+
+add_executable(blinky blinky.c)
+
+target_link_libraries(blinky
+    pico_stdlib
+    pico_cyw43_arch_none
+)
+
+pico_add_extra_outputs(blinky)

pico1w/blinky/blinky.c

@@ -0,0 +1,14 @@
+#include "pico/stdlib.h"
+#include "pico/cyw43_arch.h"
+
+int main(void) {
+    if (cyw43_arch_init()) {
+        return -1;
+    }
+    while (true) {
+        cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, true);
+        sleep_ms(250);
+        cyw43_arch_gpio_put(CYW43_WL_GPIO_LED_PIN, false);
+        sleep_ms(250);
+    }
+}

pico1w/blinky/pico_sdk_import.cmake

@@ -0,0 +1,73 @@
+# This is a copy of <PICO_SDK_PATH>/external/pico_sdk_import.cmake
+
+# This can be dropped into an external project to help locate this SDK
+# It should be include()ed prior to project()
+
+if (DEFINED ENV{PICO_SDK_PATH} AND (NOT PICO_SDK_PATH))
+    set(PICO_SDK_PATH $ENV{PICO_SDK_PATH})
+    message("Using PICO_SDK_PATH from environment ('${PICO_SDK_PATH}')")
+endif ()
+
+if (DEFINED ENV{PICO_SDK_FETCH_FROM_GIT} AND (NOT PICO_SDK_FETCH_FROM_GIT))
+    set(PICO_SDK_FETCH_FROM_GIT $ENV{PICO_SDK_FETCH_FROM_GIT})
+    message("Using PICO_SDK_FETCH_FROM_GIT from environment ('${PICO_SDK_FETCH_FROM_GIT}')")
+endif ()
+
+if (DEFINED ENV{PICO_SDK_FETCH_FROM_GIT_PATH} AND (NOT PICO_SDK_FETCH_FROM_GIT_PATH))
+    set(PICO_SDK_FETCH_FROM_GIT_PATH $ENV{PICO_SDK_FETCH_FROM_GIT_PATH})
+    message("Using PICO_SDK_FETCH_FROM_GIT_PATH from environment ('${PICO_SDK_FETCH_FROM_GIT_PATH}')")
+endif ()
+
+set(PICO_SDK_PATH "${PICO_SDK_PATH}" CACHE PATH "Path to the Raspberry Pi Pico SDK")
+set(PICO_SDK_FETCH_FROM_GIT "${PICO_SDK_FETCH_FROM_GIT}" CACHE BOOL "Set to ON to fetch copy of SDK from git if not otherwise locatable")
+set(PICO_SDK_FETCH_FROM_GIT_PATH "${PICO_SDK_FETCH_FROM_GIT_PATH}" CACHE FILEPATH "location to download SDK")
+
+if (NOT PICO_SDK_PATH)
+    if (PICO_SDK_FETCH_FROM_GIT)
+        include(FetchContent)
+        set(FETCHCONTENT_BASE_DIR_SAVE ${FETCHCONTENT_BASE_DIR})
+        if (PICO_SDK_FETCH_FROM_GIT_PATH)
+            get_filename_component(FETCHCONTENT_BASE_DIR "${PICO_SDK_FETCH_FROM_GIT_PATH}" REALPATH BASE_DIR "${CMAKE_SOURCE_DIR}")
+        endif ()
+        # GIT_SUBMODULES_RECURSE was added in 3.17
+        if (${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.17.0")
+            FetchContent_Declare(
+                    pico_sdk
+                    GIT_REPOSITORY https://github.com/raspberrypi/pico-sdk
+                    GIT_TAG master
+                    GIT_SUBMODULES_RECURSE FALSE
+            )
+        else ()
+            FetchContent_Declare(
+                    pico_sdk
+                    GIT_REPOSITORY https://github.com/raspberrypi/pico-sdk
+                    GIT_TAG master
+            )
+        endif ()
+
+        if (NOT pico_sdk)
+            message("Downloading Raspberry Pi Pico SDK")
+            FetchContent_Populate(pico_sdk)
+            set(PICO_SDK_PATH ${pico_sdk_SOURCE_DIR})
+        endif ()
+        set(FETCHCONTENT_BASE_DIR ${FETCHCONTENT_BASE_DIR_SAVE})
+    else ()
+        message(FATAL_ERROR
+                "SDK location was not specified. Please set PICO_SDK_PATH or set PICO_SDK_FETCH_FROM_GIT to on to fetch from git."
+                )
+    endif ()
+endif ()
+
+get_filename_component(PICO_SDK_PATH "${PICO_SDK_PATH}" REALPATH BASE_DIR "${CMAKE_BINARY_DIR}")
+if (NOT EXISTS ${PICO_SDK_PATH})
+    message(FATAL_ERROR "Directory '${PICO_SDK_PATH}' not found")
+endif ()
+
+set(PICO_SDK_INIT_CMAKE_FILE ${PICO_SDK_PATH}/pico_sdk_init.cmake)
+if (NOT EXISTS ${PICO_SDK_INIT_CMAKE_FILE})
+    message(FATAL_ERROR "Directory '${PICO_SDK_PATH}' does not appear to contain the Raspberry Pi Pico SDK")
+endif ()
+
+set(PICO_SDK_PATH ${PICO_SDK_PATH} CACHE PATH "Path to the Raspberry Pi Pico SDK" FORCE)
+
+include(${PICO_SDK_INIT_CMAKE_FILE})

pico1w/flash.sh

@@ -0,0 +1,59 @@
+#!/bin/bash
+# Flash-Skript fuer Pico 1 W im BOOTSEL-Modus.
+# Wartet auf das RPI-RP2 Massenspeichergeraet, mountet es, kopiert die uf2.
+#
+# Nutzung: ./flash.sh <pfad/zur/firmware.uf2>
+
+set -euo pipefail
+
+if [ $# -lt 1 ]; then
+    echo "Nutzung: $0 <firmware.uf2>" >&2
+    exit 1
+fi
+
+UF2="$1"
+if [ ! -f "$UF2" ]; then
+    echo "Datei nicht gefunden: $UF2" >&2
+    exit 1
+fi
+
+# Der Bootrom vom RP2040 exponiert eine FAT-Partition mit Label RPI-RP2.
+# udev legt bei Erscheinen automatisch diesen Symlink an — unabhaengig davon,
+# ob der Kernel das Device als sda, sdb, sdc, ... zaehlt.
+BY_LABEL="/dev/disk/by-label/RPI-RP2"
+TIMEOUT=30
+
+echo "Warte bis zu ${TIMEOUT}s auf Pico im BOOTSEL-Modus (BOOTSEL druecken, dann einstecken)..."
+for ((i = 0; i < TIMEOUT; i++)); do
+    if [ -e "$BY_LABEL" ]; then
+        break
+    fi
+    sleep 1
+done
+
+if [ ! -e "$BY_LABEL" ]; then
+    echo "Kein RPI-RP2 nach ${TIMEOUT}s gefunden." >&2
+    echo "Ist BOOTSEL gehalten worden beim Einstecken?" >&2
+    exit 1
+fi
+
+DEV="$(readlink -f "$BY_LABEL")"
+echo "Pico gefunden: $DEV"
+
+MNT="$(mktemp -d -t pico-XXXXXX)"
+trap 'sudo umount "$MNT" 2>/dev/null || true; rmdir "$MNT" 2>/dev/null || true' EXIT
+
+echo "Mounte nach $MNT ..."
+sudo mount -o uid=$(id -u),gid=$(id -g) "$DEV" "$MNT"
+
+echo "Kopiere $(basename "$UF2") ..."
+cp "$UF2" "$MNT/"
+sync
+
+# Nach dem Schreiben rebootet der Pico von selbst und das FS verschwindet.
+# umount kann daher "target is busy" oder "not mounted" liefern — beides okay.
+sudo umount "$MNT" 2>/dev/null || true
+rmdir "$MNT"
+trap - EXIT
+
+echo "Fertig. Pico sollte jetzt in die neue Firmware booten."