def read(self, address, length, hex_file_path):
if ((int(length, 16) % 4) != 0):
print("ERROR: number of bytes must be a multiple of 4")
return NrfDfuErr.INVALID_PARAMETER
if (not self._quiet):
print("Reading %s bytes from address %s" % (length, address))
open(hex_file_path, 'w+')
ih = IntelHex(hex_file_path)
ih.__init__()
self.api.write_u32(0x2000000C, 0x00000004, True)
self.api.write_u32(0x20000010, int(address, 16), False)
self.api.write_u32(0x20000014, int(length, 16), False)
self.api.write_u32(0x4002A004, 0x00000001, False)
start_time = time.time()
event_received = False
while (event_received == False):
if ((time.time() - start_time) > 10):
print ("ERROR: Time out, no event received after 10 sec.")
return NrfDfuErr.TIME_OUT
return_value, event_received = self.get_event_status()
if return_value < 0:
return return_value
self.acknowlage_events()
return_value, modem_response = self.read_be(0x2000000C)
if (modem_response == "5a000001"):
print("\n\n ERROR: UNKNOWN COMMAND")
return NrfDfuErr.DFU_ERROR
elif (modem_response == "5a000002"):
print("\n\n ERROR: COMMAND ERROR")
error_result = self.api.read_u32(0x20000010)
print("ERROR: Read failed at {}".format(hex(error_result)))
return NrfDfuErr.DFU_ERROR
word_count = int(length, 16)//4
for i in range(0, word_count):
return_value, lelevel = self.hex_read(0x20000010+(i*4))
ih.puts(int(address,16)+(i*4), codecs.decode(lelevel, "hex"))
ih.write_hex_file(hex_file_path)
if (not self._quiet):
print ("Reading completed")
return NrfDfuErr.SUCCESS
