chore(unoq): add set-to-ram-mode script

variants/arduino_uno_q_stm32u585xx/scripts/set-to-ram-mode.sh

@@ -0,0 +1,34 @@
+#!/bin/sh
+
+# This script sets the micro of the Arduino UNO Q in RAM mode, and allow to flash it
+# with menu option flash=ram.
+# This is necessary because a flash in RAM mode is possible only if the micro
+# isn't running any other sketch (in flash mode).
+# The RAM mode is volatile, so after a power cycle the micro will not execute
+# the sketch anymore.
+# This is used by the arduino-app-cli when uploading sketches to the Arduino UNO Q.
+
+# Requirements:
+#   - arduino-cli
+#   - jq
+
+# Usage:
+#   ./set-to-ram-mode.sh [port]
+
+
+tmpdir=$(mktemp -d)
+trap 'rm -rf "$tmpdir"' EXIT
+
+sketch_path="${tmpdir}/empty"
+mkdir ${sketch_path}
+
+bin_path="${sketch_path}/empty.ino.elf-zsk.bin"
+dd if=/dev/zero of=${bin_path} bs=50 count=1 > /dev/null 2>&1
+
+if [ -z "$1" ]; then
+  port=$(arduino-cli board list --format json | jq -r '.detected_ports[] | select(.matching_boards[]?.fqbn == "arduino:zephyr:unoq") | .port.address')
+else
+  port="$1"
+fi
+
+arduino-cli upload -p ${port} --input-dir ${sketch_path} -b arduino:zephyr:unoq