License GPLv3+: GNU GPL version 3 or later Warn : Prefer GDB command 'target extended-remote 3333' instead of 'target remote 3333'Ĭopyright (C) 2023 Free Software Foundation, Inc. Info : New GDB Connection: 1, Target re0, state: halted Info : RP2040 B0 Flash Probe: 2097152 bytes in 512 sectors Target halted due to debug-request, current mode: Thread Info : accepting 'gdb' connection on tcp/3333 Info : Listening on port 3333 for gdb connections Info : starting gdb server for re0 on 3333 Info : SWCLK/TCK = 0 SWDIO/TMS = 0 TDI = 0 TDO = 0 nTRST = 0 nRESET = 0 Src/openocd -f interface/cmsis-dap.cfg -f target/rp2040.cfg -s tcl -c 'adapter speed 5000' I used the homebrew install version of gdb as in “brew install gdb” it installed version 13.1 and it connected to the Pico combination fine: # in openocd: target/rp2040.cfg -c 'adapter speed 5000' -c 'program hello_timer.elf verify reset exit' Running gdb The second will be the version I use in the future, where I am in the build folder of the program under development.Įxport OPENOCD_TCL_PATH=/Users/lkoepsel/Documents/pico/openocd/tcl There are two versions, the first, is my test while in the openocd folder, which isn’t practical, however, great for testing in this scenario. The key elements to fixing is that the cfg file has changed to interface/cmsis-dap.cfg and the speed must be set using “ -c adapter speed 5000”. It took a bit of work to determine how to upload a file.

Info : starting gdb server for re0 on 3333 Info : Listening on port 3333 for gdb connections Info : re1: hardware has 4 breakpoints, 2 watchpoints Info : re0: hardware has 4 breakpoints, 2 watchpoints Info : SWCLK/TCK = 0 SWDIO/TMS = 0 TDI = 0 TDO = 0 nTRST = 0 nRESET = 0 Info : CMSIS-DAP: Interface ready Info : CMSIS-DAP: Interface Initialised (SWD) Info : Listening on port 4444 for telnet connections Info : Listening on port 6666 for tcl connections Info : auto-selecting first available session transport 'swd'. Src/openocd -f interface/cmsis-dap.cfg -f target/rp2040.cfg -s tcl -c 'adapter speed 5000' Open On-Chip Debugger 0.11.0-g8e3c38f (-09:55)

In CMAKELists at root, duplicate the single line for blink and change to blink_array:.

In the local CMAKELists.txt file change all blink references to blink_array.

Duplicate existing folder, such as blink to blink_array.

Process for a new program in pico-examples I also used the picotool from above to manage the upload process. To do this I created a new version of blink then determined the changes necessary to have it complete the process using the same commands we used on blink. I believe successful programming needs to be muscle-memory, meaning the complile/link/load/upload step needs to be something you no longer think about, you simple execute commands. It’s helpful to remain in the pico-examples directory when creating new programs. Ln -s Documents/pico/picotool/picotool picotool # Add a symbolic link to run via PATH cd ~/bin # clone the picotool repository git clone -branch master # move back to the root pico folder cd ~/Documents/pico We’ll install it in the pico directory, alongside pico-sdk and pico-examples. Its easy to build and use, I’ll use it for uploading the UF2 file to the pico. There’s a tool which can help with both the documentation and file management process between the PC and the Pico called picotool. So far, Linux and macOS are fairly similar. Your tty address will probably be different. Use “brew install minicom” to install and I used “minicom -b 115200 -D /dev/tty.usbserial-A10K59P8”. If you don’t want to pay for it, minicom is available for the Mac as well.

I use the application Serial, its lovely.

As before with Linux, use the UART version, not USB.

Let’s follow a similar path for Hello_World. # plugin Pico with BOOTSEL pressed down to get RPI-RP2 cp blink.uf2 /Volumes/RPI-RP2 # continuing on with building of blink cd pico-examples

export PICO_TOOLCHAIN_PATH=/Applications/ARM/bin # If you get 'Compiler 'arm-none-eabi-gcc' not found. Pwd /Users/username/Documents/pico/pico-sdkĮxport PICO_SDK_PATH=/Users/lkoepsel/Documents/pico/pico-sdk

Minicom mac