In part 4 I showed how to load and run Wozmon and MCP programs on the Sorbus.
Those cores could be loaded with the basic ‘Press BOOTSEL at powerup and drop an UF2 file on the disk’ procedure.

Here I show how to load the more complex UF2 files SvOlli provides. It is not a simple ‘drop a file’.
This is what I did (on Windows).
- Unpack the cores of the release in a folder, e.g. sorbus/cores
- Get a working picotool.
Some searching on the web brought me to this website where I found a command line Picotool for Windows - Download pictool.exe from the website
- You will need to download and run zadig: https://zadig.akeo.ie/
- Set pico in bootmode, run zadig
- You will want to select “RP2 Boot (Interface 1)” from the dropdown, and install the “WinUSB” driver.
- Start a command prompt (‘terminal’ and type
picotool load -v -x your-build-file.uf2
I did this with sorbus-computer-native_alpha_picotool.uf2 and got a nice menu driven interface to various programs as shown below.
Note that option 0 brings up CP/M-65 (with my Pascal-M!). There is also OSI Basic, Taliforth, Instant Assembler TIM and programs developed by SvOlli.




See also:
TERC KIM-1 Interface set
A recent acquisition, the TERC (Technical Education Research Centers) KIM-1 Interface set. An educational tool to work w...
6502 tester NMOS CMOS 1-8MHz
The 6502 W65C02 6502C CPU tester NMOS / CMOS 1-8MHz is a CPU tester for 40 pin 6502/65C02 and WD65C02 and Sally.
The...
680x/650x Test system
The 680x/650x Test system allows to test, with the CPU itself performing the test, the MC680X and MCS650X families.
T...
Backbit Chip Tester PRO V2
A simple tio use and effective component test and ROM dump can be done with the wonderful Backbit Chiptester Pro V2.
...