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getting the pico usb host example compiled correctly
12/01/2022 at 19:51 • 3 comments

I couldn't find the picoprobe with openOCD until I flashed it with a pre compiled picoprobe.uf2 file instead of compiling it myself. If it works, it works - I guess.

found the related issue where I got the working picoprobe.uf2 got from: https://github.com/raspberrypi/openocd/issues/71
Basically pointing to this site where you can download the probe firmware:

https://www.raspberrypi.com/documentation/microcontrollers/raspberry-pi-pico.html#debugging-using-another-raspberry-pi-pico

So apparently there's a tinyusb bug that will break the usb hid example and throw something like this at you:
assertion "ep->active" failed: file "~/Projects/pico/pico-sdk/lib/tinyusb/src/portable/raspberrypi/rp2040/hcd_rp2040.c", line 164, function: hw_trans_complete

This has something to do with the debug mode and you need a flag to run cmake first before compiling:
```
PICO_SDK_PATH=~/Projects/pico/pico-sdk cmake .. -DCMAKE_BUILD_TYPE=Release
make -j8
```
I have yet to find out what the difference between -j8 and -j4 means but hey, that up their worked.

link that helped: https://github.com/raspberrypi/pico-sdk/issues/649

video that helped:

Building openOCD for picoprobe on M1 mac

12/01/2022 at 12:35 • 0 comments

Had some trouble compiling the openOCD version for the picoprobe on the M1 macbook. This is based on a thread on github and the official guides, plus some blog posts that basically copied from each other.

https://github.com/raspberrypi/openocd/issues/7

#install additional brew libraries
brew install libtool automake texinfo wget gcc pkg-config libusb

# some path magic so compilers know where to look for stuff 
export PATH="$(brew --prefix)/opt/texinfo/bin:$PATH"

# download openocd files with picoprobe branch
git clone https://github.com/raspberrypi/openocd.git \
  --branch picoprobe --depth=1

cd openocd
./bootstrap

# this enables the picoprobe and deactivates other modules that fail to compile otherwise
CAPSTONE_CFLAGS="-I$(brew --prefix)/include" \                      
  ./configure --prefix="$(brew --prefix)"  \
  --enable-picoprobe --disable-presto --disable-werror --disable-openjtag

make -j4

# this will probably overwrite your current installation
# and will break openjtag
make install

# optionally remove the installation folder
cd ~/git
rm -rf openocd

burning firmware onto an ST-Link to burn firmware onto anything else
06/07/2021 at 18:37 • 0 comments

at least I'm trying to find that out. The clones from aliexpress are supposed to be only able to program st chips. But I want to use it to program some SAMD-21 chips. Never done that as well. So this is a link drop first. Figuring it out for MAC OS.

install open-OCD via homebrew

for unlocking the stm for new firmware go here

https://hackaday.io/project/162597-st-link-clone-repurposing/log/156668-programming

install new firmware called cmsis-dap

https://mvdlande.wordpress.com/2015/10/05/cmsis-dap-on-a-cheap-st-link-v2-mini-adapter/

get this file

https://raw.githubusercontent.com/x893/CMSIS-DAP/master/Firmware/STM32/hex/CMSIS-DAP-STLINK21.hex

install with this line
```
openocd -f interface/stlink.cfg -f target/stm32f1x.cfg -c "init" -c "halt" \

    -c "flash write_image ./CMSIS-DAP-STLINK21.hex" -c "shutdown"
```
doing this to flash arturos latest keyboard firmware, had to install arm gcc first. Brew doesn't work as it's not trusted. Downloading here helped.

https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/gnu-rm/downloads
to compile arturos fine firmware, you need to add the ARM stuff to your path, otherwise you compile and wonder why he wont find "gcc-arm-none-eabi" again.
```
export PATH="$PATH:/Applications/ARM/bin/"
```

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Things I've Built

Tampermonkey scripts for hackaday.io

Some annoying things like the feedback button and design stuff. https://gist.github.com/davedarko/f6ef86c89c4d1df4cd36

Batman LED caps

Put a cap on a strawhat LED and you will get a small batman projector.

IKEA Expedit LED plug

Throw in some WS2812 LEDs and snap it on the crossings.

PiMac

3D printed case for the raspberry pi in a not so common but very known shape. Inspired by http://hackaday.com/2014/01/16/hackintosh-mac-pro-replica-using-a-trash-can/

Fubarino Contest: Game Boy Printer

A little library for the gameboy printer for an easy intergation into arduino sketches. Cross the serial streams (watchout Egon) on startup, it will print the had url. http://hackaday.com/2013/12/17/fubarino-contest-game-boy-printer/

Bits

bruno-js wrote 02/24/2023 at 20:28

very nice projects :)

Will definitely take time to read more about you

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davedarko wrote 02/25/2023 at 01:15

ha thanks for the kind words :) most of my projects I see as not finished (yet?)

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Mitsuru Yamada wrote 07/24/2022 at 10:37

Thank you for liking my #PERSEUS-9 homemade mobile 6502 computer!

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Craig Hissett wrote 11/17/2021 at 10:56

Thanks for liking my #Pi Pedalboard: Live/Recording Rig project matey!

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Xasin wrote 07/20/2021 at 08:22

Aw, thank you for the follow on my project!
I hope to make it one of the more professionally manufactured items on my list.

In that regard, did you ever work with an assembly service?
Some of your projects look like they were, and this is my first try at automated assembly ^^

Are you sure? yes | no

davedarko wrote 07/20/2021 at 08:40

You had me on the hook with the 29th century holo emitter technology, but the screenshot of the sensor array (sounds so trekkie too) got me :)

I have worked with aisler.net a bit, but have not yet done anything with JLCPCB. Heard lots of good things about makerfabs, since @deʃhipu , @arturo182 and @Brian Lough have worked with them and still do so. None of my projects here have been assembled by anyone other than me :3

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danjovic wrote 06/19/2021 at 12:07

Hey Dave, thanks for liking my #MonKlock project!

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davedarko wrote 06/19/2021 at 18:03

it's a great project, always a fan of different fonts and concepts for clocks :)

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Josh Gadeken wrote 04/10/2021 at 17:29

Thank you for liking and following my #Roomba RPi project!

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kristina panos wrote 12/28/2020 at 17:07

Thanks for liking my #bag hacking adventures!

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kristina panos wrote 01/26/2020 at 10:15

Thanks for liking my Wild Berry pedal! :D

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davedarko wrote 01/26/2020 at 11:29

It has all the things a good project needs: repurposed parts, 3D printed things, mechanical keys and an intriguing case :)

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Craig Hissett wrote 11/30/2019 at 20:58

Thanks for liking my #Raspberry Pi Cluster buddy!

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Ken Yap wrote 11/27/2019 at 14:43

Thanks for liking #An uninnovative linear LED display

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Patrick Van Oosterwijck wrote 11/11/2019 at 21:23

Hi Dave, thanks for liking my new #PoE-FeatherWing project!

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[deleted]

[this comment has been deleted]

davedarko wrote 11/06/2019 at 01:49

Sure thing! I just spotted two nice boards from a competitor in the contest and had to hit like :)

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Morning.Star wrote 10/27/2019 at 03:50

Hey Dave, thanks for following dude. :-)

I havent seen you in HC in a long time, hope everythings cool...

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davedarko wrote 10/27/2019 at 22:28

must have unclicked you and clicked again :D I'm always super busy with the videos for "element14 presents" and joined a hackerspace some months ago.. hope you get along as well!

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Nick Bild wrote 10/14/2019 at 00:49

Thanks for the follow of Light Brakes (https://hackaday.io/project/168007-light-brakes). Glad you like it!

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Jacob Still wrote 06/29/2019 at 19:57

Hey, thanks for taking a look at my project #DIYTIL311 !

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PixelDud wrote 04/08/2019 at 19:04

I like what's going on here... Keep up the good work.

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Richard Hogben wrote 03/29/2019 at 00:37

Ooh another project like from @davedarko :)

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davedarko wrote 03/29/2019 at 11:04

totally unexpected and uncalled for, all that pcb art on that eurorack panel - nice work :D #Mutable Instruments Clouds PCB Panel

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deʃhipu wrote 12/30/2018 at 22:43

Um, so, how did you get 26438 followers?

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WooDWorkeR wrote 12/30/2018 at 23:51

i would say he created follow bots

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davedarko wrote 12/31/2018 at 16:08

it's the onboarding process, where they ask if you like certain projects and don't mind auto following people.

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Eugene wrote 12/29/2018 at 07:21

Thank you for following my StereoPi project!

(https://hackaday.io/project/162954-stereopi-diy-stereoscopic-camera-with-raspberry)

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Richard Hogben wrote 12/15/2018 at 15:13

Thanks for liking the 'Not a Hack' project!

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davedarko

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Things I've Built

Tampermonkey scripts for hackaday.io

Batman LED caps

IKEA Expedit LED plug

PiMac

Fubarino Contest: Game Boy Printer

Projects I Like & Follow

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