How to solve the firmware update failures

[Xykon]

So far I did manage to get the Linux updater to work.

In ./bin/updater I set BAUD_RATE = 115200 and commented #self.esp.change_baud(baudrate)

I tried the same thing in the Windows version but it still doesn't work.

[Xykon]

OK I got the Windows updater to work as well (though not the GUI).

First make the same modifications to "C:\Program Files (x86)\Pycom\Pycom Firmware Update\Upgrader\bin\updater.py"

Line12: BAUD_RATE = 115200
Line23:#self.esp.change_baud(baudrate)

Now open a command prompt and run:

cd "C:\Program Files (x86)\Pycom\Pycom Firmware Update\Upgrader"
..\Python27\python.exe bin\updater.py --port COM4 --file firmware\lopy_0.9.2.b1_868.bin

Make sure that you choose the correct COM port and firmware file for your module/region.

[livius]

@LarryTru
you are the best :)

This work for me - but Pymark still can not connect to WiPy2.0 :(
Before upgrade it work ok.
I can only conect by: wifi, ftp, telnet
boot.py looks ok
I also can see data sended by UART programmatically on com port monitor but Pymark can not :(

[livius]

Xykon not LarryTru

[AgriKinetics]

@Xykon Thank you for the assistance - it worked like a dream :)

[Xykon]

It turns out the problem with using 921600bps for firmware upload not working for me was my own test setup... if you use the official expansion board using just the command line on Windows without making changes to updater.py should work as well.

If you happen to use RS232 for UART0 then reducing the firmware upload speed to 115200bps seems to be necessary.

[livius]

I have used official expansion board and without your changes - it not work
Your fix work for me

[Xykon]

@livius said in How to solve the firmware update failures:

I have used official expansion board and without your changes - it not work
Your fix work for me

OK thanks for testing that.

I usually have the module plugged into my PSoC5LP development board's breadboard so I can (among other things like testing I2C and SPI) do remote controlled resets in normal, safeboot and bootloader mode without having to connect any wires. Since that dev board has an RS232 converter on it I connected it to P0/P1 and used an FTDI RS232 cable to get access to the LoPy's UART0. I had a chat with abilio about it and tried again using the expansion board and this time it worked at the higher speed.

Either way I guess the firmware updater should have an optional "high speed upload" switch to choose between 115200 and 921600 bps.

[digsatman]

@Xykon Many thanks - I tried to use the standard pycom windows updater/patcher for 0.9.2.b1 which failed using the offical expansion board. It immediately returned with a "fail" every time I tried although REPL via Putty and PyMakr still worked fine. Having read this thread, I wondered if the high baud rate specified in Line 12 of updater.py might be the problem. Tried again using Windows GUI but still no joy. Finally, tried again using a command window and managed to update both my LoPy's first time. I'd spent a couple of weeks unable to update them over wifi and had write protect problems - hopefully all will me smoother now!

Many thanks to all - especially Xykon - Great work - (another upvote for you!)

[aureleq]

@Xykon Thank you! Finally I was able to update... your post should get pin on top of this post. I connected my Lopy for the first time today and as written in the starting guide I started by the upgrade process. Thought it would be more straight-forward :P Anyway I understand bugs can happen at this early stage.

[abilio]

This thread is being closed as the feedback and information contained here are now covered by the firmware upgrade tools. Please check the downloads section of our website to get the last versions of the tools.

For further support on the tools please feel free to open a new thread.