def test_update_bootloader_params(self):
merged = self.run_merge_bin(
"esp32", [(0x1000, "bootloader_esp32.bin"),
(0x10000, "ram_helloworld/helloworld-esp32.bin")],
["--flash_size", "2MB", "--flash_mode", "dout"])
self.assertAllFF(merged[:0x1000])
bootloader = read_image("bootloader_esp32.bin")
helloworld = read_image("ram_helloworld/helloworld-esp32.bin")
# test the bootloader is unchanged apart from the header (updating the header doesn't change CRC,
# and doesn't update the SHA although it will invalidate it!)
self.assertEqual(merged[0x1010:0x1000 + len(bootloader)],
bootloader[0x10:])
# check the individual bytes in the header are as expected
merged_hdr = merged[0x1000:0x1010]
bootloader_hdr = bootloader[:0x10]
self.assertEqual(bootloader_hdr[:2], merged_hdr[:2])
self.assertEqual(3, byte(merged_hdr, 2)) # flash mode dout
self.assertEqual(0x10,
byte(merged_hdr, 3) & 0xF0) # flash size 2MB (ESP32)
self.assertEqual(
byte(bootloader_hdr, 3) & 0x0F,
byte(merged_hdr, 3) & 0x0F) # flash speed is unchanged
self.assertEqual(bootloader_hdr[4:],
merged_hdr[4:]) # remaining field are unchanged
# check all the padding is as expected
self.assertAllFF(merged[0x1000 + len(bootloader):0x10000])
self.assertEqual(merged[0x10000:0x10000 + len(helloworld)], helloworld)
def check_format(self, new_value_str):
if new_value_str is None:
raise esptool.FatalError("Required MAC Address in AA:CD:EF:01:02:03 format!")
if new_value_str.count(":") != 5:
raise esptool.FatalError("MAC Address needs to be a 6-byte hexadecimal format separated by colons (:)!")
hexad = new_value_str.replace(":", "")
if len(hexad) != 12:
raise esptool.FatalError("MAC Address needs to be a 6-byte hexadecimal number (12 hexadecimal characters)!")
# order of bytearray = b'\xaa\xcd\xef\x01\x02\x03',
bindata = binascii.unhexlify(hexad)
# unicast address check according to https://tools.ietf.org/html/rfc7042#section-2.1
if esptool.byte(bindata, 0) & 0x01:
raise esptool.FatalError("Custom MAC must be a unicast MAC!")
return bindata
