This project is based on A2Pico.
With this firmware, the A2Pico emulates a DIY softSP card that allows to use SmartPort devices connected to a Disk II controller card.
The DIYSP V6 firmware is used for A2Pico with kind permission of Wing Yeung, MFA2 WorkShop.
That firmware is intended for a Grappler+ Printer Interface. This project therefore emulates the ROM of that very interface.