+def hex_type(string):
+ try:
+ value = int(string, 16)
+ return value
+ except ValueError:
+ raise argparse.ArgumentTypeError(f"'{string}' is not a valid hexadecimal value.")
+
+def set_size_boundaries(start_addr, size):
+ if start_addr % SECTOR_SIZE:
+ raise ValueError(f"start addr not aligned on sector size {SECTOR_SIZE}")
+
+ if size < SECTOR_SIZE:
+ print("Warning: you are trying to write something that is less than one sector size: padding with zeroes")
+
+ blocks = (size + SECTOR_SIZE - 1) // SECTOR_SIZE
+ end_addr = blocks * SECTOR_SIZE + start_addr - 1
+
+ if (end_addr <= start_addr):
+ raise ValueError(f"End address smaller or equal than start_address")
+
+ if (end_addr > 0x3FFFF):
+ raise ValueError(f"Binary file is bigger than available ROM space")
+
+ return (start_addr, end_addr)
+
+def get_area_info(dev):
+ for i in [0,1,2]:
+ packed = pack_pkt(ARE_CMD, [str(i)])
+ dev.send_data(packed)
+ info = dev.recv_data(23)
+ msg = unpack_pkt(info)
+ fmt = '>BIIII'
+ KOA, SAD, EAD, EAU, WAU = struct.unpack(fmt, bytes(int(x, 16) for x in msg))
+ print(f'Area {KOA}: {hex(SAD)}:{hex(EAD)} (erase {hex(EAU)} - write {hex(WAU)})')
+
+def get_dev_info(dev):
+ packed = pack_pkt(SIG_CMD, "")
+ dev.send_data(packed)
+ info = dev.recv_data(18)
+ fmt = '>IIIBBHH'
+ _HEADER, SCI, RMB, NOA, TYP, BFV, _FOOTER = struct.unpack(fmt, info)
+ print('====================')
+ if TYP == 0x02:
+ print('Chip: RA MCU + RA2/RA4 Series')
+ elif TYP == 0x03:
+ print('Chip: RA MCU + RA6 Series')
+ else:
+ rint('Unknown MCU type')
+ print(f'Serial interface speed: {SCI} Hz')
+ print(f'Recommend max UART baud rate: {RMB} bps')
+ print(f'User area in Code flash [{NOA & 0x1}|{NOA & 0x02 >> 1}]')
+ print(f'User area in Data flash [{NOA & 0x03 >> 2}]')
+ print(f'Config area [{NOA & 0x04 >> 3}]')
+ print(f'Boot firmware: version {BFV >> 8}.{BFV & 0xFF}')
+
+def erase_chip(dev, start_addr, size):
+
+ if size == None:
+ size = 0x3FFFF - start_addr # erase all
+
+ (start_addr, end_addr) = set_size_boundaries(start_addr, size)
+ print(f'Erasing {hex(start_addr)}:{hex(end_addr)}')
+
+ # setup initial communication
+ SAD = int_to_hex_list(start_addr)
+ EAD = int_to_hex_list(end_addr)
+ packed = pack_pkt(ERA_CMD, SAD + EAD)
+ dev.send_data(packed)
+
+ ret = dev.recv_data(7, timeout=1000) # erase takes usually a bit longer
+ unpack_pkt(ret)
+ print("Erase complete")
+
+def read_img(dev, img, start_addr, size):
+
+ if size == None:
+ size = 0x3FFFF - start_addr # read maximum possible
+
+ (start_addr, end_addr) = set_size_boundaries(start_addr, size)
+
+ # setup initial communication
+ SAD = int_to_hex_list(start_addr)
+ EAD = int_to_hex_list(end_addr)
+ packed = pack_pkt(REA_CMD, SAD + EAD)
+ dev.send_data(packed)
+
+ # calculate how many packets are have to be received
+ nr_packet = (end_addr - start_addr) // 1024 # TODO: set other than just 1024
+
+ with open(img, 'wb') as f:
+ for i in tqdm(range(0, nr_packet+1), desc="Reading progress"):
+ ret = dev.recv_data(1024 + 6)
+ chunk = unpack_pkt(ret)
+ chunky = bytes(int(x, 16) for x in chunk)
+ f.write(chunky)
+ packed = pack_pkt(REA_CMD, ['0x00'], ack=True)
+ dev.send_data(packed)
+
+
+def write_img(dev, img, start_addr, size, verify=False):