VT2350 V1.00RC1

The first release of VT2350: a stand-alone VT100 terminal on an RP2350, with no PSRAM needed.

To install: hold down BOOTSEL, connect the board to a PC, and copy VT2350.uf2 to the RP2350 drive. The manual covers wiring it up and using it.

One firmware runs on every board. The HDMI wiring defaults to 2,0,6,4, and straps on GP6 and GP7, or the setup menu, choose any other. With no picture, press Shift-F12 and then W to step through the wirings.

Tested on a Pico Computer 3, including this firmware on its default wiring, recovering the picture with the keyboard alone. It has not yet been run on a Pico 2 with an HSTX sock. Reports are welcome.

Updated 8 November: a USB serial device that refuses DTR and RTS now connects and opens. The Microbridge, the USB serial chip on a Colour Maximite 2 Generation 1, does this, and before the update it was never connected and stopped the other devices on the hub being connected after it. The manual now gives the Microbridge's top speed, 115200 baud, and the MCP2221A's, 57600.