wbus-DIP28 button use?

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IHOXOHI
Posts: 112
Joined: Sat Apr 25, 2020 7:31 am

wbus-DIP28 button use?

Post by IHOXOHI » Thu Aug 13, 2020 10:15 am

Hi,

I didn't find in documentaion how use the button on the DIP28...
There is "booto" inscription...It looks that it's a boot button. So, is it just for reset withoot use of boot.py file?
Nothing happen when I push it...

Could it be possible to change function of this button for add an other user button?

Thanks.

jamonda
Posts: 29
Joined: Thu May 21, 2020 3:48 pm

Re: wbus-DIP28 button use?

Post by jamonda » Fri Aug 14, 2020 2:13 am

Have you tried to keep the bootO pressed while pressing and releasing the Pyboard RST button? I guess it will make the pyboard to enter DFU mode.

Stevo52
Posts: 38
Joined: Sun Feb 03, 2019 10:28 pm

Re: wbus-DIP28 button use?

Post by Stevo52 » Fri Aug 14, 2020 5:23 am

WBUS-DIP 28 Boot 0 switch is on pin Y13 from what I worked out on the schematics, but I gave up trying to use it because the button isn't the easiest to get at once fitted with a Pyb D and especially if connected / powered through the USB FS port on the DIP28, when the boards are in the enclosure.

To get to DFU mode I use the two buttons on the Pyb D itself which are more accessible in the configuration I use.
Last edited by Stevo52 on Fri Aug 14, 2020 10:48 pm, edited 1 time in total.

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pythoncoder
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Re: wbus-DIP28 button use?

Post by pythoncoder » Fri Aug 14, 2020 8:25 am

A quick test plugging in the USB with the button pressed resulted in my being unable to connect with rshell. The Pyboard LED never lit so gave no indication of its actual state.
Peter Hinch

jamonda
Posts: 29
Joined: Thu May 21, 2020 3:48 pm

Re: wbus-DIP28 button use?

Post by jamonda » Fri Aug 14, 2020 10:54 pm

So, what is this button for?

chuckbook
Posts: 129
Joined: Fri Oct 30, 2015 11:55 pm

Re: wbus-DIP28 button use?

Post by chuckbook » Mon Aug 17, 2020 8:06 am

This button allows to put the STM32 processor into boot mode. Keep in mind that ST boot loader supports only the FS port!

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