7 from RAConnect import *
12 def int_to_hex_list(num):
13 hex_string = hex(num)[2:].upper() # convert to hex string
14 hex_string = hex_string.zfill(8) # pad for 8 char's long
15 hex_list = [f'0x{hex_string[c:c+2]}' for c in range(0, 8, 2)]
20 value = int(string, 16)
23 raise argparse.ArgumentTypeError(f"'{string}' is not a valid hexadecimal value.")
25 def set_size_boundaries(start_addr, size):
26 if start_addr % SECTOR_SIZE:
27 raise ValueError(f"start addr not aligned on sector size {SECTOR_SIZE}")
29 if size < SECTOR_SIZE:
30 print("Warning: you are trying to write something that is less than one sector size: padding with zeroes")
32 blocks = (size + SECTOR_SIZE - 1) // SECTOR_SIZE
33 end_addr = blocks * SECTOR_SIZE + start_addr - 1
35 if (end_addr <= start_addr):
36 raise ValueError(f"End address smaller or equal than start_address")
38 if (end_addr > 0x3FFFF):
39 raise ValueError(f"Binary file is bigger than available ROM space")
41 return (start_addr, end_addr)
43 def inquire_connection(dev):
44 packed = pack_pkt(INQ_CMD, "")
46 info = dev.recv_data(7)
47 if info == bytearray(b'\x00') or info == bytearray(b''):
49 msg = unpack_pkt(info)
50 #print("Connection already established")
53 def get_area_info(dev):
55 packed = pack_pkt(ARE_CMD, [str(i)])
57 info = dev.recv_data(23)
58 msg = unpack_pkt(info)
60 KOA, SAD, EAD, EAU, WAU = struct.unpack(fmt, bytes(int(x, 16) for x in msg))
61 print(f'Area {KOA}: {hex(SAD)}:{hex(EAD)} (erase {hex(EAU)} - write {hex(WAU)})')
63 def get_dev_info(dev):
64 packed = pack_pkt(SIG_CMD, "")
66 info = dev.recv_data(18)
68 _HEADER, SCI, RMB, NOA, TYP, BFV, _FOOTER = struct.unpack(fmt, info)
69 print('====================')
71 print('Chip: RA MCU + RA2/RA4 Series')
73 print('Chip: RA MCU + RA6 Series')
75 rint('Unknown MCU type')
76 print(f'Serial interface speed: {SCI} Hz')
77 print(f'Recommend max UART baud rate: {RMB} bps')
78 print(f'User area in Code flash [{NOA & 0x1}|{NOA & 0x02 >> 1}]')
79 print(f'User area in Data flash [{NOA & 0x03 >> 2}]')
80 print(f'Config area [{NOA & 0x04 >> 3}]')
81 print(f'Boot firmware: version {BFV >> 8}.{BFV & 0xFF}')
83 def erase_chip(dev, start_addr, size):
86 size = 0x3FFFF - start_addr # erase all
88 (start_addr, end_addr) = set_size_boundaries(start_addr, size)
89 print(f'Erasing {hex(start_addr)}:{hex(end_addr)}')
91 # setup initial communication
92 SAD = int_to_hex_list(start_addr)
93 EAD = int_to_hex_list(end_addr)
94 packed = pack_pkt(ERA_CMD, SAD + EAD)
97 ret = dev.recv_data(7, timeout=1000) # erase takes usually a bit longer
99 print("Erase complete")
101 def read_img(dev, img, start_addr, size):
104 size = 0x3FFFF - start_addr # read maximum possible
106 (start_addr, end_addr) = set_size_boundaries(start_addr, size)
108 # setup initial communication
109 SAD = int_to_hex_list(start_addr)
110 EAD = int_to_hex_list(end_addr)
111 packed = pack_pkt(REA_CMD, SAD + EAD)
112 dev.send_data(packed)
114 # calculate how many packets are have to be received
115 nr_packet = (end_addr - start_addr) // 1024 # TODO: set other than just 1024
117 with open(img, 'wb') as f:
118 for i in tqdm(range(0, nr_packet+1), desc="Reading progress"):
119 ret = dev.recv_data(1024 + 6)
120 chunk = unpack_pkt(ret)
121 chunky = bytes(int(x, 16) for x in chunk)
123 packed = pack_pkt(REA_CMD, ['0x00'], ack=True)
124 dev.send_data(packed)
127 def write_img(dev, img, start_addr, size, verify=False):
129 if os.path.exists(img):
130 file_size = os.path.getsize(img)
132 raise Exception(f'file {img} does not exist')
138 raise ValueError("Write size > file size")
140 (start_addr, end_addr) = set_size_boundaries(start_addr, size)
142 chunk_size = 1024 # max is 1024 according to protocol
144 # setup initial communication
145 SAD = int_to_hex_list(start_addr)
146 EAD = int_to_hex_list(end_addr)
147 packed = pack_pkt(WRI_CMD, SAD + EAD)
148 dev.send_data(packed)
149 ret = dev.recv_data(7)
153 with open(img, 'rb') as f:
154 with tqdm(total=size, desc="Writing progress") as pbar:
155 chunk = f.read(chunk_size)
156 pbar.update(len(chunk))
157 while chunk and totalread < size:
158 if len(chunk) != chunk_size:
159 padding_length = chunk_size - len(chunk)
160 chunk += b'\0' * padding_length
161 packed = pack_pkt(WRI_CMD, chunk, ack=True)
162 dev.send_data(packed)
164 reply = dev.recv_data(reply_len)
165 msg = unpack_pkt(reply)
166 chunk = f.read(chunk_size)
167 totalread += chunk_size
168 pbar.update(len(chunk))
172 with tempfile.NamedTemporaryFile(prefix='.hidden_', delete=False) as tmp_file, open(img, 'rb') as cmp_file:
173 read_img(dev, tmp_file.name, start_addr, size)
174 c1 = tmp_file.read(file_size) # due to byte alignment read file is longer
177 print("Verify complete")
179 print("Verify failed")
182 parser = argparse.ArgumentParser(description="RA Flasher Tool")
184 subparsers = parser.add_subparsers(dest="command", title="Commands")
186 # Subparser for the write command
187 write_parser = subparsers.add_parser("write", help="Write data to flash")
188 write_parser.add_argument("--start_address", type=hex_type, default='0x0000', help="Start address")
189 write_parser.add_argument("--size", type=hex_type, default=None, help="Size in bytes")
190 write_parser.add_argument("--verify", action="store_true", help="Verify after writing")
191 write_parser.add_argument("file_name", type=str, help="File name")
193 # Subparser for the read command
194 read_parser = subparsers.add_parser("read", help="Read data from flash")
195 read_parser.add_argument("--start_address", type=hex_type, default='0x0000', help="Start address")
196 read_parser.add_argument("--size", type=hex_type, default=None, help="Size in bytes")
197 read_parser.add_argument("file_name", type=str, help="File name")
199 erase_parser = subparsers.add_parser("erase", help="Erase sectors")
200 erase_parser.add_argument("--start_address", default='0x0000', type=hex_type, help="Start address")
201 erase_parser.add_argument("--size", type=hex_type, help="Size")
203 # Subparser for the info command
204 subparsers.add_parser("info", help="Show flasher information")
206 args = parser.parse_args()
208 if args.command == "write":
209 dev = RAConnect(vendor_id=0x045B, product_id=0x0261)
210 status_con = inquire_connection(dev)
212 dev.confirm_connection()
213 write_img(dev, args.file_name, args.start_address, args.size, args.verify)
214 elif args.command == "read":
215 dev = RAConnect(vendor_id=0x045B, product_id=0x0261)
216 status_con = inquire_connection(dev)
218 dev.confirm_connection()
219 read_img(dev, args.file_name, args.start_address, args.size)
220 elif args.command == "erase":
221 dev = RAConnect(vendor_id=0x045B, product_id=0x0261)
222 status_con = inquire_connection(dev)
224 dev.confirm_connection()
225 erase_chip(dev, args.start_address, args.size)
226 elif args.command == "info":
227 dev = RAConnect(vendor_id=0x045B, product_id=0x0261)
228 status_con = inquire_connection(dev)
230 dev.confirm_connection()
236 if __name__ == "__main__":