Great news, there is available a newbrain implementation for the Mist Fpga by Carlos Palmero. It supports the 32Kb and the EIM with CP/M. An FPGA implementation of the Grundy NewBrain (1982) for the MiST, Calypso, SiDi and Poseidon boards. It runs the original ROMs, including the COP420 keyboard/display microcontroller and the disk controller’s own…
This is an update log on the development of the z80 computer emulator. Info: https://newbrainemu.eu/2025/12/14/atlas-z80-computer-emulator/ Github: https://github.com/cdesp/Z80_SBC 12/6/2026 You can see some jumper cables because the 16 bit voltage translators 74LVC16245 work with reversed the directional pins compared to the 74LVC4245(8 bit ones) and i didn’t RTFM so i had to reverse 3 pins to…
This is a new tool that takes a newbrain binary file and produces a .wav file to be used as a tape for the newbrain. I have not test it yet, so anyone willing to do so will be of great help.
This is a new storage device with fewer components and using an arduino NANO instead of an Arduino UNO. Tested and working. (12/6/2026) Bellow the almost populated board (i will make a 3d printed box to put it inside). The 3d box prototype is ready! Files on thingiverse. You will also need the following modules:…
The pcbs for the Atlas Z80 Hardware emulator and the Newbrain Storage Board have arrived. Now i ll have to solder the missing components on the Atlas and test them.
I am currently developing a single board computer(SBC) z80 Hardware Computer emulator and it is almost complete. Hopefully it would be possible to emulate any z80 home computer. I am currently working on the FPGA implementing several components and see if the hardware needs any alterations. Specification Cpu Z84C0020FEC FPGA Sipeed TANG 25K Video HDMI…
This is a replacement for a grundy newbrain power supply. You connect a 12v (2A or more) and it provides the necessary voltages for the newbrain +5v, 12V, -12V. I tested it and it works. I am now printing a case for this you can find it here. You should also make a cable and…
New Rom for my Modular Newbrain supporting also the graphics screen up to 640×200. There are 16 colors which are indexed so they can easily changed. Currently this works on the emulator but it will work on the Hardware after i update the FPGA. The command is OS GCOL <Fore>,<Back> i.e. OS GCOL 2,15 sets…
Great news, there is available a newbrain implementation for the Mist Fpga by Carlos Palmero. It supports the 32Kb and the EIM with CP/M. An FPGA implementation of the Grundy NewBrain (1982) for the MiST, Calypso, SiDi and Poseidon boards. It runs the original ROMs, including the COP420 keyboard/display microcontroller and the disk controller’s own…
This is an update log on the development of the z80 computer emulator. Info: https://newbrainemu.eu/2025/12/14/atlas-z80-computer-emulator/ Github: https://github.com/cdesp/Z80_SBC 12/6/2026 You can see some jumper cables because the 16 bit voltage translators 74LVC16245 work with reversed the directional pins compared to the 74LVC4245(8 bit ones) and i didn’t RTFM so i had to reverse 3 pins to…
This is a new tool that takes a newbrain binary file and produces a .wav file to be used as a tape for the newbrain. I have not test it yet, so anyone willing to do so will be of great help.
This is a new storage device with fewer components and using an arduino NANO instead of an Arduino UNO. Tested and working. (12/6/2026) Bellow the almost populated board (i will make a 3d printed box to put it inside). The 3d box prototype is ready! Files on thingiverse. You will also need the following modules:…
The pcbs for the Atlas Z80 Hardware emulator and the Newbrain Storage Board have arrived. Now i ll have to solder the missing components on the Atlas and test them.
I am currently developing a single board computer(SBC) z80 Hardware Computer emulator and it is almost complete. Hopefully it would be possible to emulate any z80 home computer. I am currently working on the FPGA implementing several components and see if the hardware needs any alterations. Specification Cpu Z84C0020FEC FPGA Sipeed TANG 25K Video HDMI…
This is a replacement for a grundy newbrain power supply. You connect a 12v (2A or more) and it provides the necessary voltages for the newbrain +5v, 12V, -12V. I tested it and it works. I am now printing a case for this you can find it here. You should also make a cable and…
New Rom for my Modular Newbrain supporting also the graphics screen up to 640×200. There are 16 colors which are indexed so they can easily changed. Currently this works on the emulator but it will work on the Hardware after i update the FPGA. The command is OS GCOL <Fore>,<Back> i.e. OS GCOL 2,15 sets…