Firmware Update Fails

[jmarcelino]

@szatmari60
Are you sure the jumper cable connecting G23 and GND is working? Can you check continuity or try another one. I had a broken jumper cable last week in prototype - it was a nightmare.

I'm just saying that if you do have G23 and GND connected and nothing else it's nearly impossible that you are getting those regular boot messages. It's a really low level feature of the chip.

[szatmari60]

@szatmari60
What "terminal program" can I us to detect if the P 23 is actually "DOWN" ?
I change the wires, also the bredboard...

[robert-hh]

@szatmari60 You can use any USB or WiFi terminal which gives you a REPL prompt, like screen, minicom, picocom, telnet, putty,...
Once you have that prompt, enter:

from machine import Pin
g23 = Pin("G23", mode=Pin.IN, pull=Pin.PULL_UP)
g23.value()

It should tell you the level of the Port. If it is not 0, when connected to GND, then something is wrong.

[szatmari60]

@jmarcelino

thank you for conversation

I figured out

from machine import Pin
p_in = Pin('P23', mode=Pin.IN)
p_in()

0

[jmarcelino]

@szatmari60
Can you follow the example @robert-hh posted please, it's more reliable in case the wire is broken because his example sets the pin as PULL_UP.

[robert-hh]

@szatmari60 P23 is not G23. Actuall you have to connect GPIO0 and GND.

[szatmari60]

Thanks a lot!
I am an IDIOT!
I mismatched G23 with P23

Is OK!!! '1.6.9.b1'

[robert-hh]

@szatmari60 To be honest, I 've fallen in that trap too once. The numbering scheme of Pycom is VERY CONFUSING!

[szatmari60]

Thank you very much for your patience again!!
Have a nice day!

[mike632t]

@bucknall
Still no change (tried on a separate machine the other day), plan on attending the meetup on Thurdsay - hopefully there will be someone there with a laptop and a working updater! Not fussed if there isn't, should be an interesting evening - I hope.

Mike T.

[bucknall]

@mike632t Sure! I'll be there to help you out! Interested in chatting about your experience and where you want to take your project!

See you on Thursday!

Cheers

[mike632t]

@bucknall Found this post https://forum.pycom.io/post/5716

I assume it will work for upgrades as well as downgrades..?

[mike632t]

@bucknall
Thanks for your help the other evening - I'm up and running now, though I'm no closer to being able to update the firmware myself.

For linux users I have a (useful?) bash script that beings up a console window and then waits up to 15s for me to plugin the device (that way I see any boot messages). I don't know if this will work on OSX as I don't have a Mac.

I need to update my blog post as I've recently modified the script to allows me to select the which serial device to connect to and baud rate to use.

Mike T.