Auto Reboot to BOOTSEL mode - PICOTOOL

[hulek-ales]

Hello,
due security restrictions on my PC a can't use default upload method and I must use Picotool.
But on my Arduino IDE 2.3.4 and older (WIN 11 PC) RP2040 didn't reboot to BOOTSEL mode automaticly and a have to press button and replug USB.

So I added "tools.picotool.upload.use_1200bps_touch=true" into platform.txt and now RP enter to BOOTSEL automaticly.
Please check my solution.
Bye

[Gavin-Perry]

This issue is so close to what I want that I didn't open a new one. I'm looking for a simple utility that I can give to users of my Pico powered devices to download a UF2 file.

I read Loading your RPI PICO without bootsel button
and have downloaded OpenOCD but I'm stuck at that point. If some kind person could package a utility that will let a user connect to a Pico that is on a USB com port and download a selected file that would be great. Or just get the drive to open without pressing BootSel and the user can drag and drop. I know it's possible since the Arduino IDE does it but I don't want naïve users to have to deal with the whole IDE environment just to copy my UF2 file onto their device. Not to mention it would be handy in a production line to drop code into a set of devices.

Thanks for the support!

[earlephilhower]

It's possible to program the flash using OpenOCD and the SWD connector, but frankly I think that's going to be way harder to get right than just drag-and-dropping a UF2 onto a "USB stick" (which the Pico will appear as, under practically all OSes). The incantation used by the IDE is here

arduino-pico/platform.txt

Line 220 in 5e2fbf3

tools.picoprobe_cmsis_dap.upload.pattern="{cmd}/bin/openocd" -f "interface/cmsis-dap.cfg" -f "target/{build.chip}.cfg" -s "{cmd}/share/openocd/scripts" -c "init; adapter speed 5000; program {{build.path}/{build.project_name}.elf} verify; reset; exit"

Note this does NOT use the programmed Pico's USB at all. You need a working DebugProbe hooked up to the SWD port on the Pico to be programmed, and to install the OpenOCD app/dependencies to get it running.

Why can't you just ship the UF2 file and ask the user to hold BOOTSEL and drag-and-drop the 1 file? No drivers, no apps, no problem...

[Gavin-Perry]

Thanks for the help. I was on the wrong track and something you said about 1200 baud helped me figure it out. I just made a .bat file IF [%1]==[] (mode) ELSE mode com%1 12 Crude but effective. It throws an error when it is successful but at least the drive pops up. It could be better if the first mode command could capture the available COM which changes with each Pico I plug in. Sent via the Samsung Galaxy S22 5G, an AT&T 5G smartphone Get Outlook for Android<https://aka.ms/AAb9ysg>

…

________________________________ From: Earle F. Philhower, III ***@***.***> Sent: Thursday, February 6, 2025 10:53:52 AM To: earlephilhower/arduino-pico ***@***.***> Cc: Gavin Perry ***@***.***>; Comment ***@***.***> Subject: Re: [earlephilhower/arduino-pico] Auto Reboot to BOOTSEL mode - PICOTOOL (Issue #2676) It's possible to program the flash using OpenOCD and the SWD connector, but frankly I think that's going to be way harder to get right than just drag-and-dropping a UF2 onto a "USB stick" (which the Pico will appear as, under practically all OSes). The incantation used by the IDE is here https://github.com/earlephilhower/arduino-pico/blob/5e2fbf324b8f55fb47c53e13b88b67caad445ab0/platform.txt#L220 Note this does NOT use the programmed Pico's USB at all. You need a working DebugProbe hooked up to the SWD port on the Pico to be programmed, and to install the OpenOCD app/dependencies to get it running. Why can't you just ship the UF2 file and ask the user to hold BOOTSEL and drag-and-drop the 1 file? No drivers, no apps, no problem... — Reply to this email directly, view it on GitHub<#2676 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AVR4PP77P4R267EG45K665D2OOHSBAVCNFSM6AAAAABTM7IMJCVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDMNBQGQ2TQOJYG4>. You are receiving this because you commented.Message ID: ***@***.***>

[Gavin-Perry]

And by the way the problem with pressing the boot select button is that it's not available since the device is packaged in a box with other electronics. Sent via the Samsung Galaxy S22 5G, an AT&T 5G smartphone Get Outlook for Android<https://aka.ms/AAb9ysg>

…

________________________________ From: Earle F. Philhower, III ***@***.***> Sent: Thursday, February 6, 2025 10:53:52 AM To: earlephilhower/arduino-pico ***@***.***> Cc: Gavin Perry ***@***.***>; Comment ***@***.***> Subject: Re: [earlephilhower/arduino-pico] Auto Reboot to BOOTSEL mode - PICOTOOL (Issue #2676) It's possible to program the flash using OpenOCD and the SWD connector, but frankly I think that's going to be way harder to get right than just drag-and-dropping a UF2 onto a "USB stick" (which the Pico will appear as, under practically all OSes). The incantation used by the IDE is here https://github.com/earlephilhower/arduino-pico/blob/5e2fbf324b8f55fb47c53e13b88b67caad445ab0/platform.txt#L220 Note this does NOT use the programmed Pico's USB at all. You need a working DebugProbe hooked up to the SWD port on the Pico to be programmed, and to install the OpenOCD app/dependencies to get it running. Why can't you just ship the UF2 file and ask the user to hold BOOTSEL and drag-and-drop the 1 file? No drivers, no apps, no problem... — Reply to this email directly, view it on GitHub<#2676 (comment)>, or unsubscribe<https://github.com/notifications/unsubscribe-auth/AVR4PP77P4R267EG45K665D2OOHSBAVCNFSM6AAAAABTM7IMJCVHI2DSMVQWIX3LMV43OSLTON2WKQ3PNVWWK3TUHMZDMNBQGQ2TQOJYG4>. You are receiving this because you commented.Message ID: ***@***.***>

[earlephilhower]

Just tested w/latest release and can't reproduce. Be sure to build and upload with picotool one time before this will work (the picotool USB interface isn't added unless you compile using the picotool upload option).