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Author SHA1 Message Date
Andrew Makousky
6f71120bbb Note source photo URL. 2020-10-09 19:22:47 -05:00
Andrew Makousky
3c97c4af43 Add script for getting Macintosh SE/30 halftone. 2020-10-09 19:13:21 -05:00
Andrew Makousky
9042d685ee RTC firmware: Fix handling of sysfs GPIO. 2020-10-03 17:56:50 -05:00
Andrew Makousky
bde06c2193 Merge branch 'master' of https://github.com/quorten/macsehw 2020-10-03 17:54:04 -05:00
Andrew Makousky
8b253a827a Macintosh SE box layout update, add SE/30 box layout. 2020-10-03 17:46:05 -05:00
Andrew Makousky
b8666e8f7c packaging: Use correct box background color. 2020-09-22 13:38:02 -05:00
Andrew Makousky
665856cfc0 RTC: Add missing watch/unwatch 1-second pin. 2020-09-17 05:43:14 -05:00
Andrew Makousky
de2b6f70ca RTC: Add test script capabilities. 
Command line help, firmware filename is now optional.
 2020-09-17 05:22:29 -05:00
Andrew Makousky
655c495bb3 RTC: Implement missing links for physical test mode. 
Also minor refactoring.
 2020-09-17 04:25:57 -05:00
Andrew Makousky
745d73b98a RTC: Program fuse bits from C source. 2020-09-17 02:46:49 -05:00
Andrew Makousky
c4d34dae71 Refactor to reduce RTC code size. 2020-09-17 00:41:02 -05:00
Andrew Makousky
4e6537e57a Cleanup, fix bug in RTC test code. 2020-09-17 00:00:00 -05:00
Andrew Makousky
3858671656 Timer accuracy improvement: += instead of =. 2020-09-13 18:38:44 -05:00
Andrew Makousky
c36265d2da Testing improvements. 
* Fix deadlock condition due to improper mutex lock use.

* Refactor and improve test suite result reporting.

* Add echo command.

* Do not print prompt character and help message in scripted mode.
 2020-09-13 18:31:38 -05:00
Andrew Makousky
08efc91131 Testing improvements. 
* Add Raspberry Pi GPIO support functions.

* Add timestamps to the test suite.

* Add information on required headers for each module of the test
  software.
 2020-09-12 15:11:53 -05:00
Andrew Makousky
d953828a1b F_CPU unsigned long constant. 2020-09-11 18:06:42 -05:00
Andrew Makousky
1ebb48e1c9 Update README.md, configure XTAL pins. 2020-09-11 16:38:32 -05:00
Andrew Makousky
1484f7a189 Remove tabs, oops sorry. 2020-09-11 16:12:18 -05:00
Andrew Makousky
93edc73c2a Add option to skip XPRAM tests. 2020-09-11 16:01:00 -05:00
Andrew Makousky
fe1bb541c1 Act on falling edge rather than rising edge. 
Programming defensively with knowledge of the ROM quirks, this seems a
safer bet.
 2020-09-11 15:50:15 -05:00
Andrew Makousky
3079bd621f Write automated test suite, 8 MHz clock, code cleanup. 2020-09-11 15:35:07 -05:00
Andrew Makousky
1d36abf470 Refactor test-rtc.c for more modular layout. 
Yes, a more modular layout, albeit the fact that this is still but one
single source file.  However, this reorganization will better
facilitate breaking this up into module files.
 2020-09-10 14:38:09 -05:00
Andrew Makousky
2bce9ed244 Finished test bench implementation, fixed firmware bugs found during 
simulation, document technical limits.
 2020-09-10 05:07:27 -05:00
Andrew Makousky
6c1b2ba7d9 Fix bug with calling decodePramCmd(), improve comments. 
Other minor code cleanup.
 2020-09-05 18:50:28 -05:00
Andrew Makousky
6328347304 Improve MacRTC.c file header. 2020-09-05 18:04:06 -05:00
Andrew Makousky
043f815c4c Be defensive with holding RTC output on last cycle. 2020-09-05 17:48:46 -05:00
Andrew Makousky
e2483ddd59 Remove unnecessary pull-ups on inputs, open-drain output. 2020-09-05 15:49:53 -05:00
Andrew Makousky
652aab70ab Formatting improvements. 2020-09-05 15:10:28 -05:00
Andrew Makousky
bb3bc8bc62 Strip down to the bare minimum interrupt disables. 
This will hopefully prevent potential issues of not being able to update
the 1-second counter correctly.
 2020-09-05 15:03:04 -05:00
Andrew Makousky
76760be8e6 Several improvements after testing. 
* Convert to C.
* Add simavr test/debug code.
* Fix/improve 1-second timer pin.
* Do not modify lastSerClock in clearState().
* Add pin change interrupt for serial clock, sleep during serial clock
  edges, build out PCINT0 ISR to handle watching for multiple pin
  changes on the same ISR.
 2020-09-05 14:56:08 -05:00
Andrew Makousky
9fe3c780dd Change to C source file, add simavr debug code. 2020-09-05 02:50:55 -05:00
Andrew Makousky
1e91a8b426 Finally feature-complete code for ATTiny85 RTC. 
The code compiles, but there is NO GUARANTEE it is actually functional.
The code still needs to be tested and could use a bit of careful reading
code review to certify that it does not contain errors.
 2020-09-04 22:49:17 -05:00
Andrew Makousky
d18cff3e80 Add public domain release notice to MacRTC.cpp. 2020-09-04 17:29:06 -05:00
Andrew Makousky
fd916b3d5c Eliminate arduino_sdef.h, add Group data addresses, other cleanup. 2020-09-04 17:21:25 -05:00
Andrew Makousky
1f8d0f8163 Fix a bunch of issues with ATTiny85 RTC implementation. 
Decouple from Arduino libraries, use a small header file instead.
Now compiles with plain avr-gcc.  Still needs more work.
 2020-09-04 06:28:46 -05:00
Andrew Makousky
097581b80a Reference Google drive parent directory. 2020-09-01 23:01:44 -05:00
Andrew Makousky
b4c3ebd32a Add shipping cardboard box design. 2020-09-01 00:51:49 -05:00
Andrew Makousky
83e915f885 Symlink for macse. 2020-08-26 17:04:57 -05:00
Andrew Makousky
86767719c7 Remove placeholder README.md, use submodule instead. 2020-08-26 16:34:10 -05:00
Andrew Makousky
ba54302d2b Plan out big audacious Macintosh family designs goal. 2020-08-26 16:28:15 -05:00
Andrew Makousky
4b8dad3033 Note reserved status of "*EAREN" signal. 2020-08-10 14:33:54 -05:00
Andrew Makousky
9e63683576 More likely 1/6W. 
Compare with PSU schematic and the blurry message looks more convincing.
 2020-08-09 14:12:23 -05:00
Andrew Makousky
6ca3b92810 Document "*EXT.DTK" signal properly. 
PDS slot pinouts have now been verified, remove TODO note.
 2020-08-08 19:05:41 -05:00
Andrew Makousky
1a65308a45 Do not link/commit the PDF. 2020-08-08 00:01:23 -05:00
Andrew Makousky
7352d25cb2 Retrace looking really good now, more text facts added. 2020-08-07 23:11:53 -05:00
Andrew Makousky
217bf4e835 Fill in note line based off of similar schematic. 2020-08-07 06:23:16 -05:00
Andrew Makousky
7d7a495cae Comments on BBU functions and signal discipline. 2020-08-07 04:48:07 -05:00
Andrew Makousky
3295dde1f7 It's an F, not a 2. 2020-08-07 02:39:24 -05:00
Andrew Makousky
02000977b7 Fix ER -> BR CPU signal name. 2020-08-07 01:46:47 -05:00
Andrew Makousky
42d38b913a Right, not left. 2020-08-07 01:04:44 -05:00