Differences
This shows you the differences between two versions of the page.
|
Next revision
|
Previous revision
|
builderpages:plasmo:simple80r1 [2019/07/23 07:59]
plasmo created |
builderpages:plasmo:simple80r1 [2023/01/28 21:57] (current)
plasmo |
| ====== Simple80, a simple Z80 SBC with no glue logic ====== | ====== Simple80 Rev 1 ====== |
| |
| ===== Introduction ===== | ===== Introduction ===== |
| |
| This design was inspired by low-cost Z80 kit listed on eBay. The motivation is to build a CP/M-ready, RC2014-compatible Z80 SBC with part cost of about $20. | This is rev 1 of Simple80 with the compact flash interface integrated on board. The motherboard has all necessary hardware to run CP/M. It is no longer zero glue logic like the Simple80, but is software compatible with the original [[:builderpages:plasmo:simple80|Simple80]]. |
| | |
| | [[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=2943e6&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/simple80/dsc_54701221.jpg|{{https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/simple80/dsc_54701221.jpg?direct&600x431|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_simple80_dsc_54701221.jpg}}]] |
| |
| ===== Features ===== | ===== Features ===== |
| |
| * | * Z80 at 7.3728MHz |
| | * Dual serial port SIO |
| | * 128K RAM |
| | * 64K PROM or EEPROM |
| | * CP/M 2.2 and CP/M 3 |
| | * Three classic RC2014 expansion connectors |
| | * 100mm X 100mm pc board |
| | * Compact flash interface |
| |
| Z80 at 7.3728MHz | [[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=a50c32&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/simple80/dsc_54711221.jpg|{{https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/simple80/dsc_54711221.jpg?direct&500x313|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_simple80_dsc_54711221.jpg}}]] |
| | |
| * | |
| | |
| Dual serial port SIO | |
| | |
| * | |
| | |
| 128K RAM | |
| | |
| * | |
| | |
| 64K PROM or EEPROM | |
| | |
| * | |
| | |
| Three classic RC2014 expansion connectors | |
| | |
| * | |
| | |
| 100mm X 100mm pc board | |
| | |
| * | |
| | |
| No glue logic design | |
| |
| ===== Theory of operation ===== | ===== Theory of operation ===== |
| ===== Design Information ===== | ===== Design Information ===== |
| |
| {{:builderpages:plasmo:simple80:simple80_scm.pdf|Schematic }} of Simple80 Motherboard | {{:builderpages:plasmo:simple80:simple80_r1_2_scm.pdf|Schematic}} of Simple80 Motherboard |
| |
| PC board {{:builderpages:plasmo:simple80:simple80_r0.zip|Gerber files}} of Simple80 motherboard. The pc boards were made by JLCPCB | PC board {{:builderpages:plasmo:simple80:simple80_r1_2.zip|Gerber files}} of Simple80 motherboard. The pc boards were made by JLCPCB |
| |
| Bill of Materials for Simple80 | Bill of Materials for Simple80 |
| |
| {{:builderpages:plasmo:simple80:simplecf_scm.pdf|Schematic of SimpleCF}}, a simple compact flash interface for Simple80 | |
| |
| PC board {{:builderpages:plasmo:simple80:simplecf_r0.zip|Gerber files of SimpleCF}}, a simple compact flash interface for Simple80 | |
| |
| Bill of Materials for SimpleCF | |
| |
| ==== Software ==== | ==== Software ==== |
| |
| {{:builderpages:plasmo:simple80:simple80_v0_5.zip|Simple80 Monitor}}, a basic monitor for Simple80. Use this monitor to initialize CF disk and load CP/M2.2 BIOS/CCP/BDOS. | Simple80 rev1 is software compatible with Simple80. Please see [[:builderpages:plasmo:simple80#software|Software section of Simple80]]. |
| |
| {{:builderpages:plasmo:simple80:scmonitor_simple80_startrek.hex|SCMonitor for Simple80}}. This is Steve Cousin's SCMonitor ported to Simple80. Startrek program is included in this port. To run Startrek, type 'wbasic' followed by 'run'. | ===== Manuals ===== |
| |
| {{:builderpages:plasmo:simple80:simple80_cpm22_release.zip|CP/M2.2 for Simple80}}. This is the BIOS/CCP/BDOS ported to Simple80. | [[:builderpages:plasmo:simple80:assembly_simple80r1_2|Pictorial assembly guide]] for Simple80, rev1.2 |
| |
| |
