diff --git a/tools/build_board_info.py b/tools/build_board_info.py
old mode 100644
new mode 100755
diff --git a/tools/build_memory_info.py b/tools/build_memory_info.py
old mode 100644
new mode 100755
diff --git a/tools/uf2 b/tools/uf2
index adbb8c7260f9..1421ca7fe72a 160000
--- a/tools/uf2
+++ b/tools/uf2
@@ -1 +1 @@
-Subproject commit adbb8c7260f938e810eb37f2287f8e1a055ff402
+Subproject commit 1421ca7fe72a2b173b08be05f9042b79409e783a
diff --git a/tools/uf2conv.py b/tools/uf2conv.py
deleted file mode 100755
index d67a55224c90..000000000000
--- a/tools/uf2conv.py
+++ /dev/null
@@ -1,369 +0,0 @@
-#!/usr/bin/env python3
-
-# Microsoft UF2
-#
-# The MIT License (MIT)
-#
-# Copyright (c) Microsoft Corporation
-#
-# All rights reserved.
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in all
-# copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-# SOFTWARE.
-
-import sys
-import struct
-import subprocess
-import re
-import os
-import os.path
-import argparse
-
-
-UF2_MAGIC_START0 = 0x0A324655  # "UF2\n"
-UF2_MAGIC_START1 = 0x9E5D5157  # Randomly selected
-UF2_MAGIC_END = 0x0AB16F30  # Ditto
-
-families = {
-    "SAMD21": 0x68ED2B88,
-    "SAMD51": 0x55114460,
-    "NRF52": 0x1B57745F,
-    "STM32F1": 0x5EE21072,
-    "STM32F4": 0x57755A57,
-    "ATMEGA32": 0x16573617,
-}
-
-INFO_FILE = "/INFO_UF2.TXT"
-
-appstartaddr = 0x2000
-familyid = 0x0
-
-
-def is_uf2(buf):
-    w = struct.unpack("<II", buf[0:8])
-    return w[0] == UF2_MAGIC_START0 and w[1] == UF2_MAGIC_START1
-
-
-def is_hex(buf):
-    try:
-        w = buf[0:30].decode("utf-8")
-    except UnicodeDecodeError:
-        return False
-    if w[0] == ":" and re.match(b"^[:0-9a-fA-F\r\n]+$", buf):
-        return True
-    return False
-
-
-def convert_from_uf2(buf):
-    global appstartaddr
-    numblocks = len(buf) // 512
-    curraddr = None
-    outp = b""
-    for blockno in range(numblocks):
-        ptr = blockno * 512
-        block = buf[ptr : ptr + 512]
-        hd = struct.unpack(b"<IIIIIIII", block[0:32])
-        if hd[0] != UF2_MAGIC_START0 or hd[1] != UF2_MAGIC_START1:
-            print("Skipping block at " + ptr + "; bad magic")
-            continue
-        if hd[2] & 1:
-            # NO-flash flag set; skip block
-            continue
-        datalen = hd[4]
-        if datalen > 476:
-            assert False, "Invalid UF2 data size at " + ptr
-        newaddr = hd[3]
-        if curraddr == None:
-            appstartaddr = newaddr
-            curraddr = newaddr
-        padding = newaddr - curraddr
-        if padding < 0:
-            assert False, "Block out of order at " + ptr
-        if padding > 10 * 1024 * 1024:
-            assert False, "More than 10M of padding needed at " + ptr
-        if padding % 4 != 0:
-            assert False, "Non-word padding size at " + ptr
-        while padding > 0:
-            padding -= 4
-            outp += b"\x00\x00\x00\x00"
-        outp += block[32 : 32 + datalen]
-        curraddr = newaddr + datalen
-    return outp
-
-
-def convert_to_carray(file_content):
-    outp = "const unsigned char bindata[] __attribute__((aligned(16))) = {"
-    for i in range(len(file_content)):
-        if i % 16 == 0:
-            outp += "\n"
-        outp += "0x%02x, " % ord(file_content[i])
-    outp += "\n};\n"
-    return outp
-
-
-def convert_to_uf2(file_content):
-    global familyid
-    datapadding = b""
-    while len(datapadding) < 512 - 256 - 32 - 4:
-        datapadding += b"\x00\x00\x00\x00"
-    numblocks = (len(file_content) + 255) // 256
-    outp = b""
-    for blockno in range(numblocks):
-        ptr = 256 * blockno
-        chunk = file_content[ptr : ptr + 256]
-        flags = 0x0
-        if familyid:
-            flags |= 0x2000
-        hd = struct.pack(
-            b"<IIIIIIII",
-            UF2_MAGIC_START0,
-            UF2_MAGIC_START1,
-            flags,
-            ptr + appstartaddr,
-            256,
-            blockno,
-            numblocks,
-            familyid,
-        )
-        while len(chunk) < 256:
-            chunk += b"\x00"
-        block = hd + chunk + datapadding + struct.pack(b"<I", UF2_MAGIC_END)
-        assert len(block) == 512
-        outp += block
-    return outp
-
-
-class Block:
-    def __init__(self, addr):
-        self.addr = addr
-        self.bytes = bytearray(256)
-
-    def encode(self, blockno, numblocks):
-        global familyid
-        flags = 0x0
-        if familyid:
-            flags |= 0x2000
-        hd = struct.pack(
-            "<IIIIIIII",
-            UF2_MAGIC_START0,
-            UF2_MAGIC_START1,
-            flags,
-            self.addr,
-            256,
-            blockno,
-            numblocks,
-            familyid,
-        )
-        hd += self.bytes[0:256]
-        while len(hd) < 512 - 4:
-            hd += b"\x00"
-        hd += struct.pack("<I", UF2_MAGIC_END)
-        return hd
-
-
-def convert_from_hex_to_uf2(buf):
-    global appstartaddr
-    appstartaddr = None
-    upper = 0
-    currblock = None
-    blocks = []
-    for line in buf.split("\n"):
-        if line[0] != ":":
-            continue
-        i = 1
-        rec = []
-        while i < len(line) - 1:
-            rec.append(int(line[i : i + 2], 16))
-            i += 2
-        tp = rec[3]
-        if tp == 4:
-            upper = ((rec[4] << 8) | rec[5]) << 16
-        elif tp == 2:
-            upper = ((rec[4] << 8) | rec[5]) << 4
-            assert (upper & 0xFFFF) == 0
-        elif tp == 1:
-            break
-        elif tp == 0:
-            addr = upper | (rec[1] << 8) | rec[2]
-            if appstartaddr == None:
-                appstartaddr = addr
-            i = 4
-            while i < len(rec) - 1:
-                if not currblock or currblock.addr & ~0xFF != addr & ~0xFF:
-                    currblock = Block(addr & ~0xFF)
-                    blocks.append(currblock)
-                currblock.bytes[addr & 0xFF] = rec[i]
-                addr += 1
-                i += 1
-    numblocks = len(blocks)
-    resfile = b""
-    for i in range(0, numblocks):
-        resfile += blocks[i].encode(i, numblocks)
-    return resfile
-
-
-def get_drives():
-    drives = []
-    if sys.platform == "win32":
-        r = subprocess.check_output(
-            [
-                "wmic",
-                "PATH",
-                "Win32_LogicalDisk",
-                "get",
-                "DeviceID,",
-                "VolumeName,",
-                "FileSystem,",
-                "DriveType",
-            ]
-        )
-        for line in r.split("\n"):
-            words = re.split("\s+", line)
-            if len(words) >= 3 and words[1] == "2" and words[2] == "FAT":
-                drives.append(words[0])
-    else:
-        rootpath = "/media"
-        if sys.platform == "darwin":
-            rootpath = "/Volumes"
-        elif sys.platform == "linux":
-            tmp = rootpath + "/" + os.environ["USER"]
-            if os.path.isdir(tmp):
-                rootpath = tmp
-        for d in os.listdir(rootpath):
-            drives.append(os.path.join(rootpath, d))
-
-    def has_info(d):
-        try:
-            return os.path.isfile(d + INFO_FILE)
-        except:
-            return False
-
-    return list(filter(has_info, drives))
-
-
-def board_id(path):
-    with open(path + INFO_FILE, mode="r") as file:
-        file_content = file.read()
-    return re.search("Board-ID: ([^\r\n]*)", file_content).group(1)
-
-
-def list_drives():
-    for d in get_drives():
-        print(d, board_id(d))
-
-
-def write_file(name, buf):
-    with open(name, "wb") as f:
-        f.write(buf)
-    print("Wrote %d bytes to %s." % (len(buf), name))
-
-
-def main():
-    global appstartaddr, familyid
-
-    def error(msg):
-        print(msg)
-        sys.exit(1)
-
-    parser = argparse.ArgumentParser(description="Convert to UF2 or flash directly.")
-    parser.add_argument(
-        "input", metavar="INPUT", type=str, nargs="?", help="input file (HEX, BIN or UF2)"
-    )
-    parser.add_argument(
-        "-b",
-        "--base",
-        dest="base",
-        type=str,
-        default="0x2000",
-        help="set base address of application for BIN format (default: 0x2000)",
-    )
-    parser.add_argument(
-        "-o",
-        "--output",
-        metavar="FILE",
-        dest="output",
-        type=str,
-        help='write output to named file; defaults to "flash.uf2" or "flash.bin" where sensible',
-    )
-    parser.add_argument("-d", "--device", dest="device_path", help="select a device path to flash")
-    parser.add_argument("-l", "--list", action="store_true", help="list connected devices")
-    parser.add_argument("-c", "--convert", action="store_true", help="do not flash, just convert")
-    parser.add_argument(
-        "-f",
-        "--family",
-        dest="family",
-        type=str,
-        default="0x0",
-        help="specify familyID - number or name (default: 0x0)",
-    )
-    parser.add_argument(
-        "-C", "--carray", action="store_true", help="convert binary file to a C array, not UF2"
-    )
-    args = parser.parse_args()
-    appstartaddr = int(args.base, 0)
-
-    if args.family.upper() in families:
-        familyid = families[args.family.upper()]
-    else:
-        try:
-            familyid = int(args.family, 0)
-        except ValueError:
-            error("Family ID needs to be a number or one of: " + ", ".join(families.keys()))
-
-    if args.list:
-        list_drives()
-    else:
-        if not args.input:
-            error("Need input file")
-        with open(args.input, mode="rb") as f:
-            inpbuf = f.read()
-        from_uf2 = is_uf2(inpbuf)
-        ext = "uf2"
-        if from_uf2:
-            outbuf = convert_from_uf2(inpbuf)
-            ext = "bin"
-        elif is_hex(inpbuf):
-            outbuf = convert_from_hex_to_uf2(inpbuf.decode("utf-8"))
-        elif args.carray:
-            outbuf = convert_to_carray(inpbuf)
-            ext = "h"
-        else:
-            outbuf = convert_to_uf2(inpbuf)
-        print(
-            "Converting to %s, output size: %d, start address: 0x%x"
-            % (ext, len(outbuf), appstartaddr)
-        )
-        if args.convert:
-            drives = []
-            if args.output == None:
-                args.output = "flash." + ext
-        else:
-            drives = get_drives()
-
-        if args.output:
-            write_file(args.output, outbuf)
-        else:
-            if len(drives) == 0:
-                error("No drive to deploy.")
-        for d in drives:
-            print("Flashing %s (%s)" % (d, board_id(d)))
-            write_file(d + "/NEW.UF2", outbuf)
-
-
-if __name__ == "__main__":
-    main()