Apple-1-HW/unified_retro_keyboard
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407 Commits 12 Branches 8 Tags 62 MiB
fe06e606d9
Commit Graph

10 Commits

Author SHA1 Message Date
Dave
fe06e606d9 Merge branch 'videx' 2022-12-30 13:22:43 -06:00
Dave
f2a9b655a9 More Interface-ASCII PCB cleanups 2022-12-03 04:09:15 -06:00
Dave
1c855f9a4e Modified addon for 10-pin inline connector 2022-07-05 09:21:21 -05:00
Dave
b0ea2fad81 bump reset+SL addon to 1.4 2022-04-07 02:54:32 -05:00
Dave
802827402d Cleanup RESET+SHIFTLOCK addon 
- replaced DIP header with 13-pin 0.1" vertical header.  Added labels to
the pins.

- removed left over unused diode

- reversed default on / default off labels on shiftlock mode jumper
block.
 2022-04-07 01:57:16 -05:00
Dave
48977e3eb2 Clean up DRC errors 2022-02-22 16:00:30 -06:00
Dave
d807d8720c OSI reset/shiftlock addon- add mounting holes 2022-02-22 15:49:20 -06:00
Dave
e415d43c84 Update addon board updates 
- Add diode to C5 to prevent discharge into 5V

- allow selection of default ON or OFF soft switch.
 2020-05-27 19:23:34 -05:00
Dave
3c8a02ce9a addon board uses 74HC14 2020-05-21 15:13:04 -05:00
Dave
9482a3bf0e Adjustments for OSI RESET and shiftlock circuits 
- adjust RC constants to use simple, common values and reduce number of
different part values.

- Create add-on PCB to provide reset/shiftlock function for older 542 and SB2
keyboards.
 2020-05-21 13:48:38 -05:00