86 lines
2.4 KiB
Python
Executable File
86 lines
2.4 KiB
Python
Executable File
#!/usr/bin/env python
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#
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# tcp_flash.py - flashes an ESP8266 microcontroller via 'raw' TCP/IP (not HTTP).
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#
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# Usage:
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# tcp_flash.py <host|IP> <user1.bin> <user2.bin>
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#
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# Where:
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# <host|IP> the hostname or IP address of the ESP8266 to be flashed.
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# <user1.bin> the file holding the first flash format file. Used when the currently used flash is user2.bin
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# <user2.bin> the file holding the second flash format file. Used when the currently used flash is user1.bin
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#
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# Author: Ian Marshall
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# Date: 27/05/2016
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#
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import socket
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import sys
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PORT=65056
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# Verify the parameters.
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if len(sys.argv) < 3:
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print 'Usage: '
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print ' Usage:'
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print ' tcp_flash.py <host|IP> <user1.bin> <user2.bin>'
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print ''
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print ' Where:'
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print ' <host|IP> the hostname or IP address of the ESP8266 to be flashed.'
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print ' <user1.bin> the file holding the first flash format file.'
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print ' Used when the currently used flash is user2.bin'
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print ' <user2.bin> the file holding the second flash format file.'
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print ' Used when the currently used flash is user1.bin'
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sys.exit(1)
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# Copy the parameters to more descriptive variables.
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host = sys.argv[1]
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user1bin = sys.argv[2]
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user2bin = sys.argv[3]
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print 'Flashing to "{}"'.format(host)
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# Open the connection to the ESP8266.
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s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
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s.settimeout(5);
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s.connect((host, PORT))
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# Send a request for the correct user bin to be flashed.
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s.send('OTA\r\nGetNextFlash\r\n')
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# Wait for the reply.
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f = None
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response = s.recv(128)
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if response == "user1.bin\r\n":
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print 'Flashing \"{}\"...'.format(user1bin)
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f = open(user1bin, "rb")
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elif response == "user2.bin\r\n":
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print 'Flashing \"{}\"...'.format(user2bin)
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f = open(user2bin, "rb")
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else:
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print 'Unknown binary version requested by ESP8266: "{}"'.format(response)
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sys.exit(2)
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# Read the firmware file.
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contents = f.read()
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f.close()
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# Send through the firmware length
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s.send('FirmwareLength: {}\r\n'.format(len(contents)))
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# Wait until we get the go-ahead.
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response = s.recv(128)
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if response != "Ready\r\n":
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print 'Received response: {}'.format(response)
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sys.exit(3)
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# Send the firmware.
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print 'Sending {} bytes of firmware'.format(len(contents))
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s.sendall(contents)
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response = s.recv(128)
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if len(response) > 0:
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print 'Received response: {}'.format(response)
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# Close the connection, as we're now done.
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s.close()
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sys.exit(0)
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