ytmFinally released the firmware for Pi1551! https://github.com/ytmytm/Pi1551
This is a Commodore 1551 cycle-exact drive emulator for the C16, C116, and Plus/4 family. It is based on Pi1541, but reworked for the TCBM/1551 world.
It supports D64 emulation of 1551, including switchable ROMs and 1551 RAMBOard expansion.
Like with TCBM2SD you can also read D71/81/80/82 disk images or reading the files directly from an SD card.
It ALSO can playback TAP files through the tape port.
Other features are HDMI/OLED UI, switchable ROMs, and 1551 RAMBOard expansion.
Hardware-wise you need a RaspberyPi 3, TCBM2SD and one of two interfacing options - a small PI1551-HAT or full-size PI1551-III.
