This file contains parameters that will override the PICOMEM.CFG (BIOS) settings.

Parameters list :

BIOS xxxx > Configure the BIOS to the Base Address xxxx
Example: BIOS C800
BIOS 0 will disable the PicoMEM BIOS emulation but still keep the PicoMEM ports (2A0-2A3) active.
You can then use the PicoMEM as a Sound card / Joystick controller thanks to PMinit

PREBOOT : When Present, this will force the BIOS to start when the Option ROM is executed.

This allow to start the setup even if the PC BIOS redirect the BootStrap interrupt after the PicoMEM Init (for Book8088 For example)
This parameter may not work in some machines, as the BIOS is not totally initialized at the begining. (Missing Keyboard or timer init)

TANDY xxx : Tandy MODE will disable the "Automatic" Conventionnal memory emulation.
If you have a Tandy 1000 SX, EX, HX, RL, TL you must add TANDY in the Configuration file.
To add RAM, add 128, 256 or 384 after TANDY (Added RAM size in Kb)
Warning : Due to the "Slow" nature of the emulated RAM > 128Kb, it is recommended to not add more than 256Kb.
256KB is possible on the PicoMEM 2.

OLED x : Change the I2C OLED model on the left QwiiC/Front panel header PicoMEM 2 ONLY
1 : SSD1306 128x32 (Default)
2 : SSD1306 128x64
3 : SH1106 132x64

ROM xxxx filename : Load a binary file and place it as a ROM at the address xxx

This fonctionality is available from the October 2026 Firmware.
It can be used for example to add GLATick for full support of the Real Time Clock under DOS or XTIDE BIOS.
You can add multiple ROM file, and it is recommended to add them after the PicoMEM BIOS, to be sure they are present when the PicoMEM board is completely initialized.
The ROM files should be placed in a folder named "ROM"

The config.txt is supported from the may 28 firmware version.

The file need to contain the Wifi SSID in the first line, then the Password (in clear) in the second line.
Place the file in the SD card root directory.

New (Oct 2026 Firmware): Support Open Wifi SSID if no passworrd is set.