v1.2.5

This version includes minor changes. Main difference is in the LCD version which is now compatible with the Amiga/NanoMIG setup at https://github.com/harbaum/NanoMig/blob/main/doc/LCD_SETUP.md

This release also does not include the MCU firmware, anymore. Instead the FPGA Companion is now recommended. See https://github.com/harbaum/FPGA-Companion/releases

The family grows

This release adds a lot of small improvements but mainly support for the Tang Primer 25k and the Tang Mega 138K.

ACSI improvements

This release mainly fixes some issues with ACSI mainly for TOS 2.06 and the ppera drivers.

Harddisk

The main addition is this release is the support of harddisk images on SD card.

Writing to floppies

Main update in this release is the addition of SD card write support. This works for the MCU and it is e.g. possible to save the current settings to SD card and it also works for the core which can now write to floppy disk images. Further improvements in this release are the possibility to use a USB joystick and an interrupt signal between the FPGA and the MCU. This mainly allows for faster response times during SD card access.

Together with the cores ability to handle ED floppy disk images with a capacity of nearly 3MB, complex use cases are now supported even without harddisk support (yet).

** Important: This release adds a new IRQ signal between the FPGA and the MCU. In order for the SD card to work properly, PIn IO14 of the M0S needs to be connected to pin 51 of the Tang Nano 20k.**

Floppy B:

Various small improvements incl:

• Floppy B: support
• much faster Floppy
• Support for Rii "multimedia direction keys" as joystick
• Scanlines
• Audio volume control

New OSD

This release moves much of the OSD/SD card handling from the FPGA to the MCU. This saves a lot of FPGA resources and at the same time adds new features incl. convenient file browsing. The OSD is now opened using F12.

USB keyboard and mouse

This is the first release to use a seperate MCU to use USB keyboard and mouse.

File (not) found

This release fixes that another disk image file can be selected if the previous one wasn't found. This is mainly if the SD card misses a "disk_a.st"

Everything but a keyboard

This release contains pretty much everything planned for the FPGA itself. This includes full STE compatibilit and a simple on-screen-display to select floppy disk images. The one major thing missing is keyboard support.

Everything else, especially USB keyboard support will happen in the embedded microcontroller of the TN20k.