This document lists the supported hardware platforms for the MEGA65, and any relevant notes.
This is the primary development board. The DDR RAM is not supported. Ethernet and microphone are both supported, as is VGA output with 12-bit colour depth using the on-board VGA connector, as well as via PMOD connectors together with the necessary signals to drive a small LCD panel. SD cards are supported in 1-bit SPI mode (3MB/sec max).
This is the new name for the Nexys4-DDR, and thus should be identical hardware and thus should work. We would appreciated it if someone could confirm this in the field.
Idential to the Nexys4-DDR board, except that it has an 8MB PSRAM instead of the DDR RAM. The PSRAM was previously supported, and will be supported again in the future.
This is the first revision of the MEGA65 PCB, and some hardware modifications are required to make it work. The SD card must be fitted in a special hacked-on SD card holder, but is otherwise fully supported. Ethernet, cartridge port, floppy connector and VGA are all fully supported. HDMI video is not yet supported. C65-compatible keyboard and C64 joysticks are also supported, as are Amiga mice (which can be used with the built-in 1351 hardware emulation function). Paddles and 1351 mice require further hardware modifications to be used. The normal Commodore serial floppy drive / printer bus functions, but does not support C65/C128 fast mode. This board contains no built-in expansion memory. The PMOD and 50-pin expansion connectors are place-holders only. Cartridge port has some limitations due to lack of direction control on some IO lines.
This is the second revision of the MEGA65 PCB. It corrects problems with the SD card, IEC serial drive port, and floppy interface. Pull-ups do need to be added to various lines however. Also, at the time of writing, only the VGA display is working, and the ethernet and real-time clock are yet to be activated.
This board requires a significant amount of re-work to function correctly, and thus is not recommended for future work. The latest revision of the MEGAphone prototype board should be used in preference.
This board is in the process of being assembled, and thus has not yet been tested. It corrects many of the problems with the revision 1 MEGAphone board.
The MEGA65 requires a monitor that can do 800x600 at both 50Hz and 60Hz. If the monitor will do only one of those modes, it is possible to configure the MEGA65 to use exactly one of those modes. Note that the MEGA65 does not (currently) query a monitor for EDID information. This might change in the future.
Diagram to go here 