diff options
Diffstat (limited to 'util/uf2conv.py')
| -rwxr-xr-x | util/uf2conv.py | 114 |
1 files changed, 74 insertions, 40 deletions
diff --git a/util/uf2conv.py b/util/uf2conv.py index 8677a828c9..fb82fd03ca 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)) @@ -238,10 +248,26 @@ 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): - print(msg) + print(msg, file=sys.stderr) sys.exit(1) parser = argparse.ArgumentParser(description='Convert to UF2 or flash directly.') parser.add_argument('input', metavar='INPUT', type=str, nargs='?', @@ -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() |