FPGA implementation of the ZX-Badaloc Spectrum clone
FPGA Configuration files Version 1.06:
Bitstream for USB or JTAG fpga configuration for the Nexys2
3E evaluation board. Also Includes the .mcs file for platform flash programming and the .ncd file to quickly update the
bitstream with a new PicoBlaze firmware using the DATA2MEM Xilinx
utility, which is included with picoblaze source code.
BootRom Firmware Version 1.01 (with source code):
Z80 firmware porting from ZX-Badaloc original
project. Handles main menu, sd-card and ZX-Com communication.
Should be uploaded to the clone and/or programmed into the external SPI
Flash chip (M25P16) at address $0F0000. SPI Flash programming can be
using the ZX-Com program itself. This screenshow shows the running
firmware while an sd-card with a few snapshots has been found:
ZX-Com Program Version 5.4:
A Win32 control program (via RS-232 commands) developed for
ZX-Badaloc and ZXmmc+, now with FPGA specific functions such as SPI
Flash programming or quick firmware upload for debugging purposes. The
source code is available through the original zx-badaloc project pages.
A backup of 16
sd-card snapshots is included: they can be restored to a new card and
then loaded from the bootrom main menu.
snapshots are also included. They can be immediately uploaded to the
clone, provided that the ROM layout is as required (SPI programming page not available yet).
The ROM layout is composed of several ROMs that should be programmed in subsequent 16KBytes banks into the SPI flash.
When the SPI flash is not available, it is possible to run 16/32K roms
one at once by uploading them in BANK_0 via ZX-Com software and RS-232
port. It should be noted that many provided snapshopt require the
correct rom layout to run (but they can be edited to tell them that the
rom is in bank 0.
Garry Lancaster's ResiDOS for ZX-Badaloc
This is a snapshot of ResiDos 2.25 installer by Garry Lancaster and can be uploaded to the clone using the ZX-Com program.