Apple-2-HW/RAM2E
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88 Commits 5 Branches 5 Tags 124 MiB
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88 Commits

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Author SHA1 Message Date
Zane Kaminski
ae8c84d2c9 Refresh rate increase compiled in Quartus 2021-01-28 14:42:44 -05:00
Zane Kaminski
245a7e8a30 Merge branch 'dev-GW4203B-1.3' into dev-GW4203B 2021-01-24 08:47:56 -05:00
Zane Kaminski
8c50842fed Merge branch 'dev-GW4203B-1.2' into dev-GW4203B 2021-01-24 08:35:41 -05:00
Zane Kaminski
2b838cdd7f Increased refresh frequency 2020-12-26 14:15:17 -05:00
Zane Kaminski
a688f82d4f Fabbed 2020-12-25 13:02:24 -05:00
Zane Kaminski
4a9341dcc8 Added C14M buffering and header 2020-12-16 14:43:41 -05:00
Zane Kaminski
455f9e99f1 Actually fabbed 10/6/2020 2020-10-09 13:02:03 -04:00
Zane Kaminski
5af7a4b84d Fabbed 9/29/2020 2020-09-29 14:59:55 -04:00
Zane Kaminski
a4fc5a2ebe Update timing diagram in schematic 
Now reflects longer MAX V propagation delays
 2020-09-25 13:05:58 -04:00
Zane Kaminski
cdb4c1f4c8 Create Banner.jpg 2020-09-18 16:05:22 -04:00
Zane Kaminski
d15023c86f Update GW4203BManual 2020-09-18 00:47:18 -04:00
Zane Kaminski
a4c86c60f8 Update GW4203BManual 2020-09-18 00:45:40 -04:00
Zane Kaminski
29a75c8028 Delete Picture.png 2020-09-18 00:45:19 -04:00
Zane Kaminski
7d88c5d625 Merge branch 'dev-GW4203B-1.2' of https://github.com/garrettsworkshop/RAM2E into dev-GW4203B-1.2 2020-09-17 23:32:03 -04:00
Zane Kaminski
383c2b5760 Merge branch 'dev-GW4203B-1.2' of https://github.com/garrettsworkshop/RAM2E into dev-GW4203B-1.2 2020-09-17 23:32:01 -04:00
Zane Kaminski
7ff514a26c Fix snow on screen 
Previous commit had "snow" in 80-col mode when updating display. Put back command timing to fix problem. Kept PHI0 read gating depending on EN80 and data output gating
 2020-09-16 20:20:16 -04:00
Zane Kaminski
8eb7ead8ee Improve power consumption 
Gated RAM access during PHI0, squeezed video access and MPU access together, gated data bus output buffer OE to only output at end of PHI0
 2020-09-16 19:49:18 -04:00
Zane Kaminski
9a3e845413 Actually put the right pictures 2020-09-11 16:36:18 -04:00
Zane Kaminski
2a58e754c6 Updated pictures 2020-09-11 16:30:51 -04:00
Zane Kaminski
e8dee0f319 Updated schematic with 1V8 regulator and MAX V 2020-09-10 10:44:47 -04:00
Zane Kaminski
91544eb60d Working on MAX V 2020-09-09 16:35:14 -04:00
Zane Kaminski
7b68a9e9b8 As submitted to JLCPCB August 21 2020 2020-08-20 22:32:17 -04:00
Zane Kaminski
aa58ecc4d9 Documentation update 2020-08-20 22:27:49 -04:00
Zane Kaminski
05f8cbd610 August 2020 JLCPCB again 2020-08-08 03:52:57 -04:00
Zane Kaminski
a06c454ac2 Update .gitignore 2020-08-08 03:50:01 -04:00
Zane Kaminski
0e76c6dcb0 Merge branch 'dev-GW4203B' into dev-GW4203B-1.1 2020-08-05 19:52:28 -04:00
Zane Kaminski
f59696560f Update GW4203BManual 2020-08-05 19:52:19 -04:00
Zane Kaminski
f9673fb736 Merge branch 'dev-GW4203B' into dev-GW4203B-1.1 2020-08-05 19:39:01 -04:00
Zane Kaminski
9ccc1ce6c7 Update GW4203BManual 2020-08-05 19:38:45 -04:00
Zane Kaminski
ab1f3d71b1 Added MS Word "~$" temporary file to gitignore 2020-08-05 19:38:18 -04:00
Zane Kaminski
3b3b201598 As submitted to JLCPCB August 2020 2020-08-04 22:13:53 -04:00
Zane Kaminski
9c47468516 Documentaton update 2020-08-03 02:45:59 -04:00
Zane Kaminski
ee9465ad31 Documentation update 2020-08-02 18:29:48 -04:00
Zane Kaminski
36879970c9 Fixed typo in manual 2020-07-31 17:11:59 -04:00
Zane Kaminski
58e3a76dc5 Documentation update 2020-07-31 17:10:23 -04:00
Zane Kaminski
0dbffb8b49 Add GW4203B files 2020-07-25 04:37:15 -04:00
Zane Kaminski
c8fc6df937 Create LICENSE 2020-07-25 04:30:58 -04:00
Zane Kaminski
bedbc072ec Create .gitignore 2020-07-25 04:30:52 -04:00