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builderpages:plasmo:g8pp:g8ppbase68k8 [2019/01/04 10:31]
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builderpages:plasmo:g8pp:g8ppbase68k8 [2019/01/17 22:21] (current)
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| This is a two-board configuration consists of a [[:builderpages:plasmo:g8pp:g8ppbase|G8PP in baseline configuration]] and a simple MC68008 board on RC2014 backplane. | This is a two-board configuration consists of a [[:builderpages:plasmo:g8pp:g8ppbase|G8PP in baseline configuration]] and a simple MC68008 board on RC2014 backplane. |
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| [[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=d5cfc3&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/g8pp/g8pp68k8/dsc_41520102.jpg|{{https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/g8pp/g8pp68k8/dsc_41520102.jpg?direct&600x429|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_g8pp_g8pp68k8_dsc_41520102.jpg}}]] | [[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=1e660d&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/g8pp/g8pp68k8/g8ppbase68k8.jpg|{{https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/g8pp/g8pp68k8/g8ppbase68k8.jpg?direct&600x375|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_g8pp_g8pp68k8_g8ppbase68k8.jpg}}]] |
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| ===== 68008 CPU Card ===== | ===== 68008 CPU Card ===== |
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| Schematic of 68008 CPU card | [[https://www.retrobrewcomputers.org/lib/exe/fetch.php?media=builderpages:plasmo:g8pp:g8pp68k8:cpu68008_comp.jpg|{{:builderpages:plasmo:g8pp:g8pp68k8:cpu68008_comp.jpg?direct&400x184|cpu68008_comp.jpg}}]] |
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| | {{:builderpages:plasmo:g8pp:g8pp68k8:cpu68k8_scm.pdf|Schematic}} of PCB 68008 CPU card |
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| | Gerber {{:builderpages:plasmo:g8pp:g8pp68k8:cpu68k8_r1.zip|photoplots}} of 68008 CPU card |
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| | ==== Prototype 68008 CPU Card ==== |
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| | [[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=ee1b4a&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/g8pp/g8pp68k8/68k8_cpu_comp.jpg|{{https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/g8pp/g8pp68k8/68k8_cpu_comp.jpg?direct&250x111|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_g8pp_g8pp68k8_68k8_cpu_comp.jpg}}]] |
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| | [[https://www.retrobrewcomputers.org/lib/exe/fetch.php?tok=70299b&media=https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/g8pp/g8pp68k8/68k8_cpu_solder.jpg|{{https://www.retrobrewcomputers.org/lib/plugins/ckgedit/fckeditor/userfiles/image/builderpages/plasmo/g8pp/g8pp68k8/68k8_cpu_solder.jpg?direct&250x113|www.retrobrewcomputers.org_lib_plugins_ckgedit_fckeditor_userfiles_image_builderpages_plasmo_g8pp_g8pp68k8_68k8_cpu_solder.jpg}}]] |
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| | This is a prototype of the 68008 CPU card. It is superseded by the PC board version. |
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| | {{:builderpages:plasmo:g8pp:g8pp68k8:68k8_scm.pdf|Schematic}} of prototype 68008 CPU card |
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| ===== RC2014 Signal Definition ===== | ===== RC2014 Signal Definition ===== |
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| The following RC2014 signals are redefined for G8PPBase+68K8: | The following RC2014 signals are redefined for G8PPBase+68K8: |
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| | * RC2014 Pin 19 (nM1) — A16 (68008 pin 16) |
| | * RC2014 Pin 23 (nMREQ) — nAS (68008 pin 28) |
| | * RC2014 Pin 24 (nWR) — RnW (68008 pin 30) |
| | * RC2014 Pin 25 (nRD) — A17 (68008 pin 17) |
| | * RC2014 Pin 26 (nIORQ) — A18 (68008 pin 18) |
| | * RC2014 Pin 37 (Spare 1) — nBR (68008 pin 33) |
| | * RC2014 Pin 38 (Spare 2) — nDTACK (68008 pin 31) |
| | * RC2014 Pin 39 (Spare 3) — A19 (68008 pin 19) |
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| ===== G8PP Baseline Configuration ===== | ===== G8PP Baseline Configuration ===== |
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| Altera EPM7128SQC100 design | Introduction to [[:builderpages:plasmo:g8pp|G8PP]] |
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| | G8PP [[:builderpages:plasmo:g8pp:g8ppbase|baseline configuration]] |
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| | Altera EPM7128SQC100 {{:builderpages:plasmo:g8pp:g8pp68k8:g8pp68k8_cpld_1_17_19.zip|design for 68K8}} |
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| ===== G8PPBase+68K8 ===== | ===== G8PPBase+68K8 ===== |
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| Serial Bootstrap | {{:builderpages:plasmo:g8pp:g8pp68k8:g68kload.zip|Serial Bootstrap}}, a bare minimum S record loader. It automatically jumps to 0x400 after a successful load. The serial communication is 38400, N81, no parity |
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| 68K8 Monitor | {{:builderpages:plasmo:g8pp:g8pp68k8:g68kbug_buggy_1_17_19.zip|68K8 Monitor}} <-still buggy, but good enough for file loading and memory display/mod |
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| CP/M-68K | {{:builderpages:plasmo:g8pp:cpm68k_bios_ccp_bdos_write_1_17_19.zip|CP/M-68K}}, BIOS/CCP/BDOS for G8PPBase+68K8 |
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| CP/M68K distribution files | CP/M68K distribution files |
