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27 Commits 5 Branches 6 Tags
2167c8e8164c85451b2ed6c083b121d74b54c185
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27 Commits

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Author SHA1 Message Date
Zane Kaminski
2167c8e816 Merge branch 'dev-GW4203B-1.2' into dev-GW4203B B.1.2 2021-01-24 08:35:41 -05:00
Zane Kaminski
3065cc6dd0 Actually fabbed 10/6/2020 2020-10-09 13:02:03 -04:00
Zane Kaminski
29f76fe8fc Fabbed 9/29/2020 2020-09-29 14:59:55 -04:00
Zane Kaminski
680bbf3af6 Update timing diagram in schematic 
Now reflects longer MAX V propagation delays
 2020-09-25 13:05:58 -04:00
Zane Kaminski
2cc7729a5e Update GW4203BManual B.1.1 2020-09-18 00:47:18 -04:00
Zane Kaminski
01fd38efbf Update GW4203BManual 2020-09-18 00:45:40 -04:00
Zane Kaminski
124d7c676e 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
f8c44667e8 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
e3222664b6 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
8104efd4a3 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
2790f0b58a Updated schematic with 1V8 regulator and MAX V 2020-09-10 10:44:47 -04:00
Zane Kaminski
70fe798ca0 Working on MAX V 2020-09-09 16:35:14 -04:00
Zane Kaminski
73b9e3ede2 As submitted to JLCPCB August 21 2020 2020-08-20 22:32:17 -04:00
Zane Kaminski
9e252e3df1 Documentation update 2020-08-20 22:27:49 -04:00
Zane Kaminski
2bce282514 August 2020 JLCPCB again 2020-08-08 03:52:57 -04:00
Zane Kaminski
d79fe41ade Update .gitignore 2020-08-08 03:50:01 -04:00
Zane Kaminski
c7bdc4cee7 Merge branch 'dev-GW4203B' into dev-GW4203B-1.1 2020-08-05 19:52:28 -04:00
Zane Kaminski
7a2e4f626e Update GW4203BManual 2020-08-05 19:52:19 -04:00
Zane Kaminski
ba8f619d01 Merge branch 'dev-GW4203B' into dev-GW4203B-1.1 2020-08-05 19:39:01 -04:00
Zane Kaminski
3515f7b409 Update GW4203BManual 2020-08-05 19:38:45 -04:00
Zane Kaminski
d5171bba69 Added MS Word "~$" temporary file to gitignore 2020-08-05 19:38:18 -04:00
Zane Kaminski
2f34f2288a As submitted to JLCPCB August 2020 2020-08-04 22:13:53 -04:00
Zane Kaminski
e2604d6dcf Documentaton update B.1.0 2020-08-03 02:45:59 -04:00
Zane Kaminski
9c73c13c00 Documentation update 2020-08-02 18:29:48 -04:00
Zane Kaminski
888c585d1a 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