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Diffstat (limited to 'util/uf2conv.py')
-rwxr-xr-xutil/uf2conv.py112
1 files changed, 73 insertions, 39 deletions
diff --git a/util/uf2conv.py b/util/uf2conv.py
index 8677a828c9..efc7263f83 100755
--- a/util/uf2conv.py
+++ b/util/uf2conv.py
@@ -6,40 +6,13 @@ import re
import os
import os.path
import argparse
+import json
UF2_MAGIC_START0 = 0x0A324655 # "UF2\n"
UF2_MAGIC_START1 = 0x9E5D5157 # Randomly selected
UF2_MAGIC_END = 0x0AB16F30 # Ditto
-families = {
- 'SAMD21': 0x68ed2b88,
- 'SAML21': 0x1851780a,
- 'SAMD51': 0x55114460,
- 'NRF52': 0x1b57745f,
- 'STM32F0': 0x647824b6,
- 'STM32F1': 0x5ee21072,
- 'STM32F2': 0x5d1a0a2e,
- 'STM32F3': 0x6b846188,
- 'STM32F4': 0x57755a57,
- 'STM32F7': 0x53b80f00,
- 'STM32G0': 0x300f5633,
- 'STM32G4': 0x4c71240a,
- 'STM32H7': 0x6db66082,
- 'STM32L0': 0x202e3a91,
- 'STM32L1': 0x1e1f432d,
- 'STM32L4': 0x00ff6919,
- 'STM32L5': 0x04240bdf,
- 'STM32WB': 0x70d16653,
- 'STM32WL': 0x21460ff0,
- 'ATMEGA32': 0x16573617,
- 'MIMXRT10XX': 0x4FB2D5BD,
- 'LPC55': 0x2abc77ec,
- 'GD32F350': 0x31D228C6,
- 'ESP32S2': 0xbfdd4eee,
- 'RP2040': 0xe48bff56
-}
-
INFO_FILE = "/INFO_UF2.TXT"
appstartaddr = 0x2000
@@ -61,8 +34,13 @@ def is_hex(buf):
def convert_from_uf2(buf):
global appstartaddr
+ global familyid
numblocks = len(buf) // 512
curraddr = None
+ currfamilyid = None
+ families_found = {}
+ prev_flag = None
+ all_flags_same = True
outp = []
for blockno in range(numblocks):
ptr = blockno * 512
@@ -78,9 +56,13 @@ def convert_from_uf2(buf):
if datalen > 476:
assert False, "Invalid UF2 data size at " + ptr
newaddr = hd[3]
- if curraddr is None:
- appstartaddr = newaddr
+ if (hd[2] & 0x2000) and (currfamilyid == None):
+ currfamilyid = hd[7]
+ if curraddr == None or ((hd[2] & 0x2000) and hd[7] != currfamilyid):
+ currfamilyid = hd[7]
curraddr = newaddr
+ if familyid == 0x0 or familyid == hd[7]:
+ appstartaddr = newaddr
padding = newaddr - curraddr
if padding < 0:
assert False, "Block out of order at " + ptr
@@ -91,8 +73,37 @@ def convert_from_uf2(buf):
while padding > 0:
padding -= 4
outp += b"\x00\x00\x00\x00"
- outp.append(block[32 : 32 + datalen])
+ if familyid == 0x0 or ((hd[2] & 0x2000) and familyid == hd[7]):
+ outp.append(block[32 : 32 + datalen])
curraddr = newaddr + datalen
+ if hd[2] & 0x2000:
+ if hd[7] in families_found.keys():
+ if families_found[hd[7]] > newaddr:
+ families_found[hd[7]] = newaddr
+ else:
+ families_found[hd[7]] = newaddr
+ if prev_flag == None:
+ prev_flag = hd[2]
+ if prev_flag != hd[2]:
+ all_flags_same = False
+ if blockno == (numblocks - 1):
+ print("--- UF2 File Header Info ---")
+ families = load_families()
+ for family_hex in families_found.keys():
+ family_short_name = ""
+ for name, value in families.items():
+ if value == family_hex:
+ family_short_name = name
+ print("Family ID is {:s}, hex value is 0x{:08x}".format(family_short_name,family_hex))
+ print("Target Address is 0x{:08x}".format(families_found[family_hex]))
+ if all_flags_same:
+ print("All block flag values consistent, 0x{:04x}".format(hd[2]))
+ else:
+ print("Flags were not all the same")
+ print("----------------------------")
+ if len(families_found) > 1 and familyid == 0x0:
+ outp = []
+ appstartaddr = 0x0
return b"".join(outp)
def convert_to_carray(file_content):
@@ -166,12 +177,11 @@ def convert_from_hex_to_uf2(buf):
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 is None:
+ addr = upper + ((rec[1] << 8) | rec[2])
+ if appstartaddr == None:
appstartaddr = addr
i = 4
while i < len(rec) - 1:
@@ -215,7 +225,7 @@ def get_drives():
def has_info(d):
try:
return os.path.isfile(d + INFO_FILE)
- except Exception:
+ except:
return False
return list(filter(has_info, drives))
@@ -238,6 +248,22 @@ def write_file(name, buf):
print("Wrote %d bytes to %s" % (len(buf), name))
+def load_families():
+ # The expectation is that the `uf2families.json` file is in the same
+ # directory as this script. Make a path that works using `__file__`
+ # which contains the full path to this script.
+ filename = "uf2families.json"
+ pathname = os.path.join(os.path.dirname(os.path.abspath(__file__)), filename)
+ with open(pathname) as f:
+ raw_families = json.load(f)
+
+ families = {}
+ for family in raw_families:
+ families[family["short_name"]] = int(family["id"], 0)
+
+ return families
+
+
def main():
global appstartaddr, familyid
def error(msg):
@@ -264,9 +290,13 @@ def main():
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')
+ parser.add_argument('-i', '--info', action='store_true',
+ help='display header information from UF2, do not convert')
args = parser.parse_args()
appstartaddr = int(args.base, 0)
+ families = load_families()
+
if args.family.upper() in families:
familyid = families[args.family.upper()]
else:
@@ -286,9 +316,12 @@ def main():
ext = "uf2"
if args.deploy:
outbuf = inpbuf
- elif from_uf2:
+ elif from_uf2 and not args.info:
outbuf = convert_from_uf2(inpbuf)
ext = "bin"
+ elif from_uf2 and args.info:
+ outbuf = ""
+ convert_from_uf2(inpbuf)
elif is_hex(inpbuf):
outbuf = convert_from_hex_to_uf2(inpbuf.decode("utf-8"))
elif args.carray:
@@ -296,11 +329,12 @@ def main():
ext = "h"
else:
outbuf = convert_to_uf2(inpbuf)
- print("Converting to %s, output size: %d, start address: 0x%x" %
- (ext, len(outbuf), appstartaddr))
+ if not args.deploy and not args.info:
+ print("Converted to %s, output size: %d, start address: 0x%x" %
+ (ext, len(outbuf), appstartaddr))
if args.convert or ext != "uf2":
drives = []
- if args.output is None:
+ if args.output == None:
args.output = "flash." + ext
else:
drives = get_drives()
generated by cgit v1.2.1 (git 2.18.0) at 2024-11-22 05:15:55 +0000