CC3200: cc3220 and python firmware loader script

Hi,

For programming by ImageProgramming.exe utility you need to use *.ucf file generated by Uniflash. You cannot use *.bin file generated by Uniflash or by CCS. In case of device is in development mode, proper MAC address need to be set by Uniflash during creation of *.ucf file.

From readme.txt:

Image Programming utility is a Microsoft Windows-based software tool for flashing a complete image on CC3120/CC3220 Simplelink devices.
The Image itself is created using Uniflash utility. 
The *.ucf format needs to be chosen.

Jan

I made *.ucf file in production mode by UniFlash and load firmware by ImageProgramming.exe - it works.

But i need python. i tryed to start it but it doesn't. what minimal i need to start ImageProgramming.py ?

Microsoft Windows [Version 6.1.7601]
(c) Корпорация Майкрософт (Microsoft Corp.), 2009. Все права защищены.

C:\cc3220\sources>ImageProgramming.py
Traceback (most recent call last):
  File "C:\cc3220\sources\ImageProgramming.py", line 36, in <module>
    import bootldr
  File "C:\cc3220\sources\bootldr.py", line 102
    print str
            ^
SyntaxError: Missing parentheses in call to 'print'. Did you mean print(print st
r)?

C:\cc3220\sources>

Microsoft Windows [Version 6.1.7601]
(c) Корпорация Майкрософт (Microsoft Corp.), 2009. Все права защищены.

C:\cc3220\sources>ImageProgramming.py
Traceback (most recent call last):
  File "C:\cc3220\sources\ImageProgramming.py", line 36, in <module>
    import bootldr
  File "C:\cc3220\sources\bootldr.py", line 102
    print str
            ^
SyntaxError: Missing parentheses in call to 'print'. Did you mean print(print st
r)?

C:\cc3220\sources>

pyserial installed

*.exe is work but *.py not

what is the different?

there are no exceptions. just can't connect to free comport.

Hi,

No. See code of bootldr.py. Message "--- error during connecting process" is a exception in connect_with_reset().

except Exception:
  self._trace_msg(TRACE_LEVEL_ERROR,"--- error during connecting process")
  self.comm.setBreak(False)
  self._printTraceback()
  sys.exit(EXIT_CODE_EXCEPTION_CONNECT)

Jan

no exception msg.

i had installed PyCharm and start this script step by step.

and at one moment it became stop only:

Hi,

Do you have any experience with Python language or any other OOP language? Your questions are related to fundamentals to Python itself. To be able made changes at Python code you need to go through tutorials to Python (e.g. www.python.org/.../gettingstarted). I am not sure what do you expecting. In case of that you want do embedded programming from Windows machine, you can use ImageProgramming.exe without any limitation. In case you want change Python script to add some requested features, you need to know Python including ways how can be debugged.

Image below is from source of pySerial library. Please read more about keyword "raise" here docs.python.org/.../errors.html

Jan

i have a little

i found some mistakes:

was

self.com_port = com_port
self.comm = serial.Serial(port=( self.com_port-1), baudrate=self.baudrate, timeout=15, parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE)

now

self.com_port = ('COM%s' % com_port)
self.comm = serial.Serial(port=( self.com_port), baudrate=self.baudrate, timeout=15, parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE)

and right now i have

Microsoft Windows [Version 6.1.7601]
(c) Корпорация Майкрософт (Microsoft Corp.), 2009. Все права защищены.

C:\cc3220\sources>ImageProgramming.py -p5 -i wifi3221_production_Programming.ucf
 -v
Image Programming v2.0.0
-----------------------------
This utility programs a binary image to a serial flash connected to CC3120/CC322
0 device
Only production devices are supported (i.e. no pre-production devices)
The binary image needs to be prepared in advance using Uniflash utility

Step #1 --> connect to target device
port opened
wait and clear uart rx buffer
set break signal
--- error during connecting process
--- error during connecting to device

C:\cc3220\sources>

wait timer doesn't work

i think *.py and *.exe sources are different

python 2.7.15
pySerial-2.7
pywin32-224.win32-py2.7

can you give me all your *.py files "as is" for check the difference by WinMerge?

Hi,

It looks that you have installed latest version of pySerial (version 3.4). I tested with old version 2.7 from 2013. I expect that this is not important, but I don't investigated that.

Content of \sources directory I have (without my testing image test_Programming.ucf):

sources.zip

Jan

Hi,

Sorry I don't understand what you want to say.

Used versions for scripts are described at CC3x20embeddedimageprogrammingexamp_manifest.html inside embedded programming package (2.7.3, 0.6.9).

Jan

Hi,

I am not author this this code and even a not a TI employee. Answering questions on this forum is only my good will, and I did not earn any single cent from it. But if you are not satisfied with my answers, I haven't a problem do not answers to your questions in the future.

Jan