Getting Started

The release files contain everything you need to get started:

• documentation
• samples and example code and explainers.
• firmware for the RP 2040 with WozMon and BASIC for SDCard or USB Host.
• tools for cross development
• Windows and Ubuntu emulators

What UF2 file to use:

There are two uf2 images, one for the SDCard, one for the USBHub. The USBHub requires the USBKey be present. So if you are just experimenting without storage, use firmware_sd.uf2

Important for USB Key users:

• The USB version requires a USB key. (the SDCard one doesn't require an SD Card if you want to use it without storage)
• Not all USB Hubs work. This is an RP2040 problem not a hardware/software design problem. A working hub chip has been identified, and most seem to work
• The quality of the USB key seems to matter as well. I found an "Amazon Cheapie" would not work, but a higher quality Sandisk worked straight off. I suspect these two issues are related.

Important for SD Card users:

• If you are using the SD Card storage board made by Olimex, it requires the switches 2, 3 and 4 on the B boards to be OFF. The board is shipped with all switches set to 'on' (Switch 1 is the on board beeper).

Without this change the SD Card will not work (see the board manual page 12).