Difference between revisions of "Z80 in 3 Chips"

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* Card will power up and cycle through all the LEDs on the Front Panel
 
* Card will power up and cycle through all the LEDs on the Front Panel
 
* Press SW25 (upper left button) on [[Front Panel For 8 Bit Computers]] to run Multiboot software
 
* Press SW25 (upper left button) on [[Front Panel For 8 Bit Computers]] to run Multiboot software
 +
* Type '''Snnn''' to select OS at multiboot
 +
** S001 - Dos+ 2.5  Copyright 1986 (c) by [http://web.archive.org/web/20080430103646/http://cbfalconer.home.att.net/download/index.htm C.B. Falconer], CCP+ Ver. 2.2  (CP/M 2.2 compatible)
 +
** S002 - [https://github.com/douggilliland/Retro-Computers/blob/master/Z80/Software/Manuals/CPM%202.2%20manual.pdf CP/M 2.2] (c) 1979 by Digital Research
 +
** S003 - [http://www.cpm.z80.de/manuals/cpm3-usr.pdf CP/M Version 3.0] BIOS (2016/9/13)
 +
*** [http://www.cpm.z80.de/manuals/cpm3-sys.pdf CP/M Version 3.0 Operating System System Guide]
 +
** S004 - [https://github.com/douggilliland/Retro-Computers/blob/master/Z80/Software/Manuals/MPM_II_2.1_Release_Notes_1982.pdf MP/M II V2.1]
 +
** S005 - [http://searle.wales/z80/SimpleZ80.html Z80 BASIC Ver 4.7b], Copyright (C) 1978 by Microsoft
 +
** S006 - [https://github.com/douggilliland/Retro-Computers/blob/master/Z80/Software/Manuals/zsdos.pdf ZSDOS v1.1] (c) 1986-8 Harold F. Bower & Cameron W. Cotrill, ZCPR2 (c) 1982 by Richard Conn (CP/M 2.2 compatible)
 +
** S007 - [https://github.com/douggilliland/Retro-Computers/blob/master/Z80/Software/Manuals/zcpr3_the_manual.pdf ZCPR compatible system] for CP/M+ (CP/M 3.0) by Simeon Cran
 
* Z80 NASCOM BASIC
 
* Z80 NASCOM BASIC
 
* [https://hackaday.io/project/167711-3-chip-z80-design/log/171007-multi-boot-multicomp-part-3 CP/M Multiboot] - Runs MultiComp 512KB SRAM version
 
* [https://hackaday.io/project/167711-3-chip-z80-design/log/171007-multi-boot-multicomp-part-3 CP/M Multiboot] - Runs MultiComp 512KB SRAM version

Revision as of 17:24, 6 September 2022

Features

Z80 P865-cropped-720px.jpg

  • Z80
    • 12.5 MHz operation
  • 512KB SRAM
  • PSoC5LP
    • PSoC5 LP emulates standard Z80 peripheral chips
      • Serial port with USB
    • Memory Management Unit (MMU)
      • Controls 512KB SRAM
    • Loader moves EPROM code to SRAM
    • Controls CPU reset
  • Optional MCP23017 16-bit port expander
    • I2C Addresses 0x24
  • Optional Front Panel
    • I2C Addresses 0x20-0x23
  • SPI interface for SDHC card

Stackup (top to bottom)

Z80 PSOC P936-CROPPED-720PX.jpg

Connectors

H1 - I2C Interface

  • Connects to Front Panel Card via I2C

Conn H1.PNG

H2 - ISP Download

  • Connects to PSoC programmer

Conn H2.PNG

H3- Serial Port or SPI (SD Card)

Conn H3.PNG

H4 - I/O

Conn H4.PNG

J1 - USB B

  • 5V card Power
  • USB to Serial comm port

J2, J3 - I/O Ports

Conn J2 J3.PNG

J4 - Audio Out

  • DAC is the Analog function generator in the PSoC

Conn J4.PNG

J5 - Z80 Signals

  • Useful for monitoring the CPU lines

Conn J5.PNG

Software

  • Hardware/Software options are set in the PSoC "Hardware_Config.h" file
    • Comment out all but one choice
  • Options
    • GRANT_9_CHIP_Z80
    • GRANT_7_CHIP_Z80
    • GRANT_7_CHIP_Z80_STANDALONE
    • GRANT_FPGA_CPM
    • MULTIBOOT_CPM

Front Panel

EightBitFrontPanel720px.JPG

Z80_PSoC Monitor

Z80 PSoC Monitor.PNG

  • Type to check the SD card
R4000
  • Result:

Z80 PSoC Monitor D Command.PNG

Multiboot Multicomp (MULTIBOOT_CPM)

Running Grants Code scaled.png

Reference Designs

Hackaday Page

Videos

Assembly Sheet

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