7 from RAConnect import *
13 def int_to_hex_list(num):
14 hex_string = hex(num)[2:].upper() # convert to hex string
15 hex_string = hex_string.zfill(8) # pad for 8 char's long
16 hex_list = [f'0x{hex_string[c:c+2]}' for c in range(0, 8, 2)]
21 value = int(string, 16)
24 raise argparse.ArgumentTypeError(f"'{string}' is not a valid hexadecimal value.")
26 def set_size_boundaries(dev, start_addr, size):
28 sector_size = dev.chip_layout[dev.sel_area]['ALIGN'] # currently only area 0 supported
30 if start_addr % sector_size:
31 raise ValueError(f"start addr not aligned on sector size {sector_size}")
33 if size < sector_size:
34 print("Warning: you are trying to write something that is less than one sector size: padding with zeroes")
36 blocks = (size + sector_size - 1) // sector_size
37 end_addr = blocks * sector_size + start_addr - 1
39 if (end_addr <= start_addr):
40 raise ValueError(f"End address smaller or equal than start_address")
42 if (end_addr > dev.chip_layout[dev.sel_area]['EAD']):
43 raise ValueError(f"Binary file is bigger than available ROM space")
45 return (start_addr, end_addr)
47 def get_area_info(dev, output=False):
50 packed = pack_pkt(ARE_CMD, [str(i)])
52 info = dev.recv_data(23)
53 msg = unpack_pkt(info)
55 KOA, SAD, EAD, EAU, WAU = struct.unpack(fmt, bytes(int(x, 16) for x in msg))
56 cfg[i] = {"SAD": SAD, "EAD": EAD, "ALIGN": EAU}
58 print(f'Area {KOA}: {hex(SAD)}:{hex(EAD)} (erase {hex(EAU)} - write {hex(WAU)})')
62 def get_dev_info(dev):
63 packed = pack_pkt(SIG_CMD, "")
65 info = dev.recv_data(18)
67 _HEADER, SCI, RMB, NOA, TYP, BFV, _FOOTER = struct.unpack(fmt, info)
68 print('====================')
70 print('Chip: RA MCU + RA2/RA4 Series')
72 print('Chip: RA MCU + RA6 Series')
74 print('Unknown MCU type')
75 print(f'Serial interface speed: {SCI} Hz')
76 print(f'Recommend max UART baud rate: {RMB} bps')
77 print(f'User area in Code flash [{NOA & 0x1}|{NOA & 0x02 >> 1}]')
78 print(f'User area in Data flash [{NOA & 0x03 >> 2}]')
79 print(f'Config area [{NOA & 0x04 >> 3}]')
80 print(f'Boot firmware: version {BFV >> 8}.{BFV & 0xFF}')
82 def erase_chip(dev, start_addr, size):
85 size = dev.chip_layout[dev.sel_area]['EAD'] - start_addr # erase all
87 (start_addr, end_addr) = set_size_boundaries(dev, start_addr, size)
88 print(f'Erasing {hex(start_addr)}:{hex(end_addr)}')
90 # setup initial communication
91 SAD = int_to_hex_list(start_addr)
92 EAD = int_to_hex_list(end_addr)
93 packed = pack_pkt(ERA_CMD, SAD + EAD)
96 ret = dev.recv_data(7, timeout=1000) # erase takes usually a bit longer
98 print("Erase complete")
100 def read_img(dev, img, start_addr, size):
103 size = 0x3FFFF - start_addr # read maximum possible
105 (start_addr, end_addr) = set_size_boundaries(dev, start_addr, size)
107 # setup initial communication
108 SAD = int_to_hex_list(start_addr)
109 EAD = int_to_hex_list(end_addr)
110 packed = pack_pkt(REA_CMD, SAD + EAD)
111 dev.send_data(packed)
113 # calculate how many packets are have to be received
114 nr_packet = (end_addr - start_addr) // 1024 # TODO: set other than just 1024
116 with open(img, 'wb') as f:
117 for i in tqdm(range(0, nr_packet+1), desc="Reading progress"):
118 ret = dev.recv_data(1024 + 6)
119 chunk = unpack_pkt(ret)
120 chunky = bytes(int(x, 16) for x in chunk)
122 packed = pack_pkt(REA_CMD, ['0x00'], ack=True)
123 dev.send_data(packed)
126 def write_img(dev, img, start_addr, size, verify=False):
128 if os.path.exists(img):
129 file_size = os.path.getsize(img)
131 raise Exception(f'file {img} does not exist')
137 raise ValueError("Write size > file size")
139 (start_addr, end_addr) = set_size_boundaries(dev, start_addr, size)
141 chunk_size = 1024 # max is 1024 according to protocol
143 # setup initial communication
144 SAD = int_to_hex_list(start_addr)
145 EAD = int_to_hex_list(end_addr)
146 packed = pack_pkt(WRI_CMD, SAD + EAD)
147 dev.send_data(packed)
148 ret = dev.recv_data(7)
152 with open(img, 'rb') as f:
153 with tqdm(total=size, desc="Writing progress") as pbar:
154 chunk = f.read(chunk_size)
155 pbar.update(len(chunk))
156 while chunk and totalread < size:
157 if len(chunk) != chunk_size:
158 padding_length = chunk_size - len(chunk)
159 chunk += b'\0' * padding_length
160 packed = pack_pkt(WRI_CMD, chunk, ack=True)
161 dev.send_data(packed)
163 reply = dev.recv_data(reply_len)
164 msg = unpack_pkt(reply)
165 chunk = f.read(chunk_size)
166 totalread += chunk_size
167 pbar.update(len(chunk))
171 with tempfile.NamedTemporaryFile(prefix='.hidden_', delete=False) as tmp_file, open(img, 'rb') as cmp_file:
172 read_img(dev, tmp_file.name, start_addr, size)
173 c1 = tmp_file.read(file_size) # due to byte alignment read file is longer
176 print("Verify complete")
178 print("Verify failed")
181 parser = argparse.ArgumentParser(description="RA Flasher Tool")
183 subparsers = parser.add_subparsers(dest="command", title="Commands")
185 # Subparser for the write command
186 write_parser = subparsers.add_parser("write", help="Write data to flash")
187 write_parser.add_argument("--start_address", type=hex_type, default='0x0000', help="Start address")
188 write_parser.add_argument("--size", type=hex_type, default=None, help="Size in bytes")
189 write_parser.add_argument("--verify", action="store_true", help="Verify after writing")
190 write_parser.add_argument("file_name", type=str, help="File name")
192 # Subparser for the read command
193 read_parser = subparsers.add_parser("read", help="Read data from flash")
194 read_parser.add_argument("--start_address", type=hex_type, default='0x0000', help="Start address")
195 read_parser.add_argument("--size", type=hex_type, default=None, help="Size in bytes")
196 read_parser.add_argument("file_name", type=str, help="File name")
198 erase_parser = subparsers.add_parser("erase", help="Erase sectors")
199 erase_parser.add_argument("--start_address", default='0x0000', type=hex_type, help="Start address")
200 erase_parser.add_argument("--size", type=hex_type, help="Size")
202 # Subparser for the info command
203 subparsers.add_parser("info", help="Show flasher information")
205 args = parser.parse_args()
207 if args.command == "write":
208 dev = RAConnect(VENDOR_ID, PRODUCT_ID)
209 area_cfg = get_area_info(dev)
210 dev.set_chip_layout(area_cfg)
211 write_img(dev, args.file_name, args.start_address, args.size, args.verify)
212 elif args.command == "read":
213 dev = RAConnect(VENDOR_ID, PRODUCT_ID)
214 area_cfg = get_area_info(dev)
215 dev.set_chip_layout(area_cfg)
216 read_img(dev, args.file_name, args.start_address, args.size)
217 elif args.command == "erase":
218 dev = RAConnect(VENDOR_ID, PRODUCT_ID)
219 area_cfg = get_area_info(dev)
220 dev.set_chip_layout(area_cfg)
221 erase_chip(dev, args.start_address, args.size)
222 elif args.command == "info":
223 dev = RAConnect(VENDOR_ID, PRODUCT_ID)
225 area_cfg = get_area_info(dev, output=True)
226 dev.set_chip_layout(area_cfg)
230 if __name__ == "__main__":