+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(dev, 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):