Commit Graph

13 Commits

Author SHA1 Message Date
Zane Kaminski
e2d63fc8ed Output read data on falling edge to get more hold time 2021-04-21 09:19:57 -04:00
Zane Kaminski
23e88303df Documentation update 2021-04-20 01:49:44 -04:00
Zane Kaminski
686fac229e idk 2021-03-15 13:40:59 -04:00
Zane Kaminski
0a649d68ac Fabbed 2021-02-17 19:29:24 -05:00
Zane Kaminski
312ef9354d Board done? 2020-10-07 23:32:57 -04:00
Zane Kaminski
c7cd1bb11e Removed AVR-JTAG-10 connector footprint 2020-02-09 03:40:57 -05:00
Zane Kaminski
a2eecf4475 Separated CSDBEN 2020-01-26 15:13:37 -05:00
Zane Kaminski
79dd794f45 New PLD revision
For write operations, register data is latched and CAS signal becomes in the middle of S6, 70ns before the end of PHI0. This gives more write data setup time, which may be needed on the Apple II with the 1 MHz 6502.
2019-10-18 15:07:38 -04:00
Zane Kaminski
1bf5ce4be3 New schematic revision 2019-10-13 01:40:49 -04:00
Zane Kaminski
6dabfca306 added some disassembly of RamFactor 2019-09-05 13:50:38 -04:00
Zane Kaminski
a73cbf10ef Clarifications and bugfixes, will try again 2019-09-02 01:42:07 -04:00
Zane Kaminski
e78807ce85 CPLD firmware compiles 2019-08-31 22:55:04 -04:00
Zane Kaminski
029354ce8e Submitted to JLCPCB 2019-07-30 17:11:31 -04:00