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builderpages:rhkoolstar:start [2016/09/17 07:21]
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-|{{:​builderpages:​rhkoolstar:​20160915_115727.jpg?nolink&512x360}}|    \\  \\  \\ In march 2007 Grant Searle introduced "CP/M on Breadboard",​ a 9 chip Z80 CP/M computer using a CF card as mass storage device. \\  \\ ([[http://​searle.hostei.com/​grant/​|http://​searle.hostei.com/​grant/​]] ​ ) \\   ​\\ ​  ​\\ ​ I got inspired by his work and created my own version \\  \\ [[:​builderpages:​rhkoolstar:​sbc-2g-512|SBC-2G-512k]] ​\\   | | +|   ​\\ ​  \\ [[https://​www.retrobrewcomputers.org/​lib/​exe/​fetch.php?​media=builderpages:​rhkoolstar:​cpmega88.jpg|{{:​builderpages:​rhkoolstar:​cpmega88.jpg?direct&512x348}}]]  \\   ​\\ ​ Currently supporting CP/M 2.2 and CP/M 3.0  ​  ​\\ This ia a fork of Takashi TOYOSHIMA'​s CP/Mega88 project ([[https://​github.com/​toyoshim/​cp-mega88|https://​github.com/​toyoshim/​cp-mega88]] ​ ), only focussing on the AVR implementation. \\   \\  ​The project features an Intel 8080 emulator, running in an ATmega88 AVR, in a virtual machine which runs CP/M 2.2 and 3.0. (dual boot) \\   ​\\ ​ This is a work in progress. Although the system is functional, it is not yet finished. Inside you will find all the files you need to build the system \\   ​\\ ​ [[:​builderpages:​rhkoolstar:​cp-mega88|CP-Mega88]] ​ | | 
-|{{:​builderpages:​rhkoolstar:​ciiboard.jpg?​nolink&​512x362}}|    ​\\  \\ An FPGA implementation of the earlier mentioned Z80 system. Because the configuration supports a 50 Hz interrupt signal, MP/MII was added to the set of supported operating systems. ​Also "​ROM"​ basic returns (in a way) \\  \\ The system ​will run on Altera Cyclone II (EP2C5) ​as well as Cyclone IV (EP4CE6) miniboards ​\\  \\ The system ​shown is a prototype of a compact version of a CycloneII-c board with added serial interface connectors (4 in total) \\   ​\\ [[:​builderpages:​rhkoolstar:​mc-2g-1024|MC-2G-1024k]] ​\\   | \\   ​\\ ​+| \\  [[https://​www.retrobrewcomputers.org/​lib/​exe/​fetch.php?​media=builderpages:​rhkoolstar:​20160915_115727.jpg|{{:​builderpages:​rhkoolstar:​20160915_115727.jpg?​direct&​512x360}}]] \\   ​\\ ​ Currently supporting: CP/M 2.2, Dos+ 2.5, ZSDOS 1.1/ZCPR 2, CP/M 3, ZPM3 and NASCOM "​ROM"​ BASIC 4.7  |   ​\\ ​  \\ In march 2007 Grant Searle introduced "CP/M on Breadboard",​ a 9 chip Z80 CP/M computer using a CF card as mass storage device. \\  \\ ([[http://​searle.hostei.com/​grant/​|http://​searle.hostei.com/​grant/​]] ​ ) \\   ​\\ ​  ​\\ ​ I got inspired by his work and created my own version \\   ​\\  [[:​builderpages:​rhkoolstar:​sbc-2g-512|SBC-2G-512k]] ​ | | 
-|{{:​builderpages:​rhkoolstar:​cycloneiv.jpg?​nolink&​512x360}}| ​  \\ In answer to popular demand: yes it works on a Cyclone ​VI too \\   \\ These are the VHDLs I use, \\  \\ {{:​builderpages:​rhkoolstar:​cycloneiv.zip|Cyclone ​VI.zip}} ​  ​\\ ​  ​\\ ​ I use the version 130 Quartus software \\   ​\\ ​ My miniboard is fitted with a 50 MHz oscillator \\   ​\\ ​ The board shown is a prototype ​compact version of James Moxham'​s work with 4 serial interface connectors | | +| \\  [[https://​www.retrobrewcomputers.org/​lib/​exe/​fetch.php?​media=builderpages:​rhkoolstar:​ciiboard.jpg|{{:​builderpages:​rhkoolstar:​ciiboard.jpg?​direct&​512x362}}]] \\   \\  ​Currently supporting: CP/M 2.2, Dos+ 2.5, ZSDOS 1.1 / ZCPR 2, MP/M, CP/M 3, ZPM3 and NASCOM "​ROM"​ BASIC 4.7  |   ​\\ ​  \\ An FPGA implementation of the earlier mentioned Z80 system. Because the configuration supports a 50 Hz interrupt signal, MP/MII was added to the set of supported operating systems. \\  \\ The system ​is laid out to run on Altera Cyclone II (EP2C5) ​miniboard ​\\  \\ The board shown is a compact version of a CycloneII-c board with added serial interface connectors (4 in total) ​and 5v keyboard interface ​\\  \\ [[:​builderpages:​rhkoolstar:​mc-2g-1024|MC-2G-1024k]] ​  | | 
- +|[[https://​www.retrobrewcomputers.org/​lib/​exe/​fetch.php?​media=builderpages:​rhkoolstar:​cycloneiv.jpg|{{:​builderpages:​rhkoolstar:​cycloneiv.jpg?​direct&​512x360}}]]|   \\ In answer to popular demand: yes it works on a Cyclone ​IV too \\ These are the VHDLs I use, \\   ​\\ {{:​builderpages:​rhkoolstar:​cycloneiv.zip|Cyclone ​IV.zip}} ​  ​\\ ​  ​\\ ​ I use the version 130 Quartus software \\   ​\\ ​ My miniboard is fitted with a 50 MHz oscillator \\   ​\\ ​ The board shown is compact version of James Moxham'​s work with 4 serial interface connectors ​and a 5v keyboard interface ​ | | 
-|[[https://​www.retrobrewcomputers.org/​lib/​exe/​fetch.php?​media=builderpages:​rhkoolstar:​20160915_115804.jpg|{{:​builderpages:​rhkoolstar:​20160915_115804.jpg?​direct&​512x410}}]]| ​  \\ On Serial - USB interfaces \\   \\ Following the FTDI 232 soap I found the following units based on the CP2102 chip to be cheaper and better. It is a 3v3 unit with voltage converter built in, but the inputs are 5v tolerant. A 5v Z80 SIO has no trouble with the 3v3 outputs. All necessary modem lines are available. There is also a 500 mA polyfuse in the 5V line \\  \\ The board turns into a neat USB plug using a length of heat shrink tube. \\  \\ look on eBay. They cost about $1.25 each  |+|[[https://​www.retrobrewcomputers.org/​lib/​exe/​fetch.php?​media=builderpages:​rhkoolstar:​20160915_115804.jpg|{{:​builderpages:​rhkoolstar:​20160915_115804.jpg?​direct&​512x410}}]]| ​  \\ On Serial - USB interfaces \\   \\ Following the FTDI 232 soap I found the following units based on the CP2102 chip to be cheaper and better. It is a 3v3 unit with voltage converter built in, but the inputs are 5v tolerant. A 5v Z80 SIO has no trouble with the 3v3 outputs. All necessary modem lines are available. There is also a 500 mA polyfuse in the 5V line \\  \\ The board turns into a neat USB plug using a length of heat shrink tube. \\  \\ look on eBay. They cost about $1.25 each  ​|
  
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builderpages/rhkoolstar/start.1474111306.txt.gz · Last modified: 2016/09/17 07:21 by rhkoolstar
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