Apple-2-HW/micro-sci-a2-controller
1
0
Fork 0
mirror of https://codeberg.org/cryu/micro-sci-a2-controller synced 2024-11-25 05:34:42 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request '2716' (#1) from 2716 into main

Browse Source 
Reviewed-on: https://codeberg.org/cryu/micro-sci-a2-controller/pulls/1
This commit is contained in:
Christopher Ryu 2023-07-18 06:27:18 +00:00
commit b139c34060
8 changed files with 46180 additions and 5647 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
.gitignore vendored
View File

@ -29,3 +29,4 @@ fp-info-cache
*.xml *.xml
*.csv *.csv
*.lck

43808
MicroSci Floppy Controller.kicad_pcb
View File

File diff suppressed because it is too large Load Diff

10
MicroSci Floppy Controller.kicad_pro
View File

@ -55,7 +55,9 @@
"width": 0.0 "width": 0.0
} }
], ],
"drc_exclusions": [], "drc_exclusions": [
"text_height|60650000|69400000|d768dc85-30ba-4ddc-bd02-7ecc813bf984|00000000-0000-0000-0000-000000000000"
],
"meta": { "meta": {
"version": 2 "version": 2
}, },
@ -92,11 +94,11 @@
"pth_inside_courtyard": "ignore", "pth_inside_courtyard": "ignore",
"shorting_items": "error", "shorting_items": "error",
"silk_edge_clearance": "warning", "silk_edge_clearance": "warning",
"silk_over_copper": "warning", "silk_over_copper": "ignore",
"silk_overlap": "warning", "silk_overlap": "ignore",
"skew_out_of_range": "error", "skew_out_of_range": "error",
"solder_mask_bridge": "ignore", "solder_mask_bridge": "ignore",
"starved_thermal": "error", "starved_thermal": "warning",
"text_height": "warning", "text_height": "warning",
"text_thickness": "warning", "text_thickness": "warning",
"through_hole_pad_without_hole": "error", "through_hole_pad_without_hole": "error",

7745
MicroSci Floppy Controller.kicad_sch
View File

File diff suppressed because it is too large Load Diff

10
README.md
View File

@ -4,7 +4,15 @@ This is a clone of the Micro-SCI / Franklin floppy drive controller.
v0.1 is a direct clone, reverse-engineered from a Micro-SCI board. It was cross-checked with a Franklin-branded board, as well as the (belatedly discovered) official Franklin schematic (included in doc/service_and_schematics.pdf) v0.1 is a direct clone, reverse-engineered from a Micro-SCI board. It was cross-checked with a Franklin-branded board, as well as the (belatedly discovered) official Franklin schematic (included in doc/service_and_schematics.pdf)
Since it is a faithful clone, it requires a 2708 EPROM (or a different EPROM with a 2708 adaptor). A board slightly revised to use a 2716/2732 is available on the 2716 git branch. v0.2 has the following enhancements over the original design:
* the 2708 EPROM has been replaced with a more-common 2716/2732 EPROM
* decoupling capacitors have been added
* footprints for all capacitors and resistors have been modernized
* firmware EPROM bank selection jumpers replaced with a DIP switch
* obsolete MPS-U51 transistor replaced with modern equivalent
* clearly-maked calibration test points have been added
* ground pours used to increase operational stability
Firmware images can be built via the Makefile in the firmware subdirectory. The build framework requires cc65. Firmware images can be built via the Makefile in the firmware subdirectory. The build framework requires cc65.

252
eprom.kicad_sym Normal file
View File

@ -0,0 +1,252 @@
(kicad_symbol_lib (version 20220914) (generator kicad_symbol_editor)
(symbol "2732" (in_bom yes) (on_board yes)
(property "Reference" "U2" (at 1.9559 29.972 0)
(effects (font (size 1.27 1.27)) (justify left))
)
(property "Value" "2732" (at 1.9559 27.432 0)
(effects (font (size 1.27 1.27)) (justify left))
)
(property "Footprint" "Package_DIP:DIP-24_W15.24mm" (at 26.67 -21.59 0)
(effects (font (size 1.27 1.27)) hide)
)
(property "Datasheet" "http://ww1.microchip.com/downloads/en/DeviceDoc/doc0014.pdf" (at 3.81 -31.75 0)
(effects (font (size 1.27 1.27)) hide)
)
(property "ki_keywords" "OTP EPROM 256 KiBit" (at 0 0 0)
(effects (font (size 1.27 1.27)) hide)
)
(property "ki_description" "OTP EPROM 256 KiBit" (at 0 0 0)
(effects (font (size 1.27 1.27)) hide)
)
(property "ki_fp_filters" "DIP*W15.24mm*" (at 0 0 0)
(effects (font (size 1.27 1.27)) hide)
)
(symbol "2732_1_1"
(rectangle (start -7.62 25.4) (end 7.62 -25.4)
(stroke (width 0.254) (type default))
(fill (type background))
)
(pin input line (at -10.16 5.08 0) (length 2.54)
(name "A7" (effects (font (size 1.27 1.27))))
(number "1" (effects (font (size 1.27 1.27))))
)
(pin tri_state line (at 10.16 20.32 180) (length 2.54)
(name "D1" (effects (font (size 1.27 1.27))))
(number "10" (effects (font (size 1.27 1.27))))
)
(pin tri_state line (at 10.16 17.78 180) (length 2.54)
(name "D2" (effects (font (size 1.27 1.27))))
(number "11" (effects (font (size 1.27 1.27))))
)
(pin power_in line (at 0 -27.94 90) (length 2.54)
(name "GND" (effects (font (size 1.27 1.27))))
(number "12" (effects (font (size 1.27 1.27))))
)
(pin tri_state line (at 10.16 15.24 180) (length 2.54)
(name "D3" (effects (font (size 1.27 1.27))))
(number "13" (effects (font (size 1.27 1.27))))
)
(pin tri_state line (at 10.16 12.7 180) (length 2.54)
(name "D4" (effects (font (size 1.27 1.27))))
(number "14" (effects (font (size 1.27 1.27))))
)
(pin tri_state line (at 10.16 10.16 180) (length 2.54)
(name "D5" (effects (font (size 1.27 1.27))))
(number "15" (effects (font (size 1.27 1.27))))
)
(pin tri_state line (at 10.16 7.62 180) (length 2.54)
(name "D6" (effects (font (size 1.27 1.27))))
(number "16" (effects (font (size 1.27 1.27))))
)
(pin tri_state line (at 10.16 5.08 180) (length 2.54)
(name "D7" (effects (font (size 1.27 1.27))))
(number "17" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 -20.32 0) (length 2.54)
(name "~{CE}" (effects (font (size 1.27 1.27))))
(number "18" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 -2.54 0) (length 2.54)
(name "A10" (effects (font (size 1.27 1.27))))
(number "19" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 7.62 0) (length 2.54)
(name "A6" (effects (font (size 1.27 1.27))))
(number "2" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 -22.86 0) (length 2.54)
(name "~{OE}" (effects (font (size 1.27 1.27))))
(number "20" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 -5.08 0) (length 2.54)
(name "A11" (effects (font (size 1.27 1.27))))
(number "21" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 0 0) (length 2.54)
(name "A9" (effects (font (size 1.27 1.27))))
(number "22" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 2.54 0) (length 2.54)
(name "A8" (effects (font (size 1.27 1.27))))
(number "23" (effects (font (size 1.27 1.27))))
)
(pin power_in line (at 0 27.94 270) (length 2.54)
(name "VCC" (effects (font (size 1.27 1.27))))
(number "24" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 10.16 0) (length 2.54)
(name "A5" (effects (font (size 1.27 1.27))))
(number "3" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 12.7 0) (length 2.54)
(name "A4" (effects (font (size 1.27 1.27))))
(number "4" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 15.24 0) (length 2.54)
(name "A3" (effects (font (size 1.27 1.27))))
(number "5" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 17.78 0) (length 2.54)
(name "A2" (effects (font (size 1.27 1.27))))
(number "6" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 20.32 0) (length 2.54)
(name "A1" (effects (font (size 1.27 1.27))))
(number "7" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 22.86 0) (length 2.54)
(name "A0" (effects (font (size 1.27 1.27))))
(number "8" (effects (font (size 1.27 1.27))))
)
(pin tri_state line (at 10.16 22.86 180) (length 2.54)
(name "D0" (effects (font (size 1.27 1.27))))
(number "9" (effects (font (size 1.27 1.27))))
)
)
)
(symbol "27C256" (in_bom yes) (on_board yes)
(property "Reference" "U2" (at 1.9559 29.972 0)
(effects (font (size 1.27 1.27)) (justify left))
)
(property "Value" "2732" (at 1.9559 27.432 0)
(effects (font (size 1.27 1.27)) (justify left))
)
(property "Footprint" "Package_DIP:DIP-24_W15.24mm" (at 26.67 -21.59 0)
(effects (font (size 1.27 1.27)) hide)
)
(property "Datasheet" "http://ww1.microchip.com/downloads/en/DeviceDoc/doc0014.pdf" (at 3.81 -31.75 0)
(effects (font (size 1.27 1.27)) hide)
)
(property "ki_keywords" "OTP EPROM 256 KiBit" (at 0 0 0)
(effects (font (size 1.27 1.27)) hide)
)
(property "ki_description" "OTP EPROM 256 KiBit" (at 0 0 0)
(effects (font (size 1.27 1.27)) hide)
)
(property "ki_fp_filters" "DIP*W15.24mm*" (at 0 0 0)
(effects (font (size 1.27 1.27)) hide)
)
(symbol "27C256_1_1"
(rectangle (start -7.62 25.4) (end 7.62 -25.4)
(stroke (width 0.254) (type default))
(fill (type background))
)
(pin input line (at -10.16 5.08 0) (length 2.54)
(name "A7" (effects (font (size 1.27 1.27))))
(number "1" (effects (font (size 1.27 1.27))))
)
(pin tri_state line (at 10.16 20.32 180) (length 2.54)
(name "D1" (effects (font (size 1.27 1.27))))
(number "10" (effects (font (size 1.27 1.27))))
)
(pin tri_state line (at 10.16 17.78 180) (length 2.54)
(name "D2" (effects (font (size 1.27 1.27))))
(number "11" (effects (font (size 1.27 1.27))))
)
(pin power_in line (at 0 -27.94 90) (length 2.54)
(name "GND" (effects (font (size 1.27 1.27))))
(number "12" (effects (font (size 1.27 1.27))))
)
(pin tri_state line (at 10.16 15.24 180) (length 2.54)
(name "D3" (effects (font (size 1.27 1.27))))
(number "13" (effects (font (size 1.27 1.27))))
)
(pin tri_state line (at 10.16 12.7 180) (length 2.54)
(name "D4" (effects (font (size 1.27 1.27))))
(number "14" (effects (font (size 1.27 1.27))))
)
(pin tri_state line (at 10.16 10.16 180) (length 2.54)
(name "D5" (effects (font (size 1.27 1.27))))
(number "15" (effects (font (size 1.27 1.27))))
)
(pin tri_state line (at 10.16 7.62 180) (length 2.54)
(name "D6" (effects (font (size 1.27 1.27))))
(number "16" (effects (font (size 1.27 1.27))))
)
(pin tri_state line (at 10.16 5.08 180) (length 2.54)
(name "D7" (effects (font (size 1.27 1.27))))
(number "17" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 -20.32 0) (length 2.54)
(name "~{CE}" (effects (font (size 1.27 1.27))))
(number "18" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 -2.54 0) (length 2.54)
(name "A10" (effects (font (size 1.27 1.27))))
(number "19" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 7.62 0) (length 2.54)
(name "A6" (effects (font (size 1.27 1.27))))
(number "2" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 -22.86 0) (length 2.54)
(name "~{OE}" (effects (font (size 1.27 1.27))))
(number "20" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 -5.08 0) (length 2.54)
(name "A11" (effects (font (size 1.27 1.27))))
(number "21" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 0 0) (length 2.54)
(name "A9" (effects (font (size 1.27 1.27))))
(number "22" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 2.54 0) (length 2.54)
(name "A8" (effects (font (size 1.27 1.27))))
(number "23" (effects (font (size 1.27 1.27))))
)
(pin power_in line (at 0 27.94 270) (length 2.54)
(name "VCC" (effects (font (size 1.27 1.27))))
(number "24" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 10.16 0) (length 2.54)
(name "A5" (effects (font (size 1.27 1.27))))
(number "3" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 12.7 0) (length 2.54)
(name "A4" (effects (font (size 1.27 1.27))))
(number "4" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 15.24 0) (length 2.54)
(name "A3" (effects (font (size 1.27 1.27))))
(number "5" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 17.78 0) (length 2.54)
(name "A2" (effects (font (size 1.27 1.27))))
(number "6" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 20.32 0) (length 2.54)
(name "A1" (effects (font (size 1.27 1.27))))
(number "7" (effects (font (size 1.27 1.27))))
)
(pin input line (at -10.16 22.86 0) (length 2.54)
(name "A0" (effects (font (size 1.27 1.27))))
(number "8" (effects (font (size 1.27 1.27))))
)
(pin tri_state line (at 10.16 22.86 180) (length 2.54)
(name "D0" (effects (font (size 1.27 1.27))))
(number "9" (effects (font (size 1.27 1.27))))
)
)
)
)

1
sym-lib-table
View File

@ -2,4 +2,5 @@
(version 7) (version 7)
(lib (name "apple2")(type "KiCad")(uri "${KIPRJMOD}/apple2.kicad_sym")(options "")(descr "")) (lib (name "apple2")(type "KiCad")(uri "${KIPRJMOD}/apple2.kicad_sym")(options "")(descr ""))
(lib (name "TTL")(type "KiCad")(uri "${KIPRJMOD}/TTL.kicad_sym")(options "")(descr "")) (lib (name "TTL")(type "KiCad")(uri "${KIPRJMOD}/TTL.kicad_sym")(options "")(descr ""))
(lib (name "eprom")(type "KiCad")(uri "/home/wileyc/Nextcloud/KiCAD/micro-sci-a2-controller/eprom.kicad_sym")(options "")(descr ""))
) )

BIN
usci.png
View File

Binary file not shown.
Side by Side Swipe Overlay

Before

Width:  |  Height:  |  Size: 410 KiB

After

Width:  |  Height:  |  Size: 522 KiB