Commit Graph

13 Commits

Author SHA1 Message Date
Zane Kaminski
7b4a492e6c Output read data on falling edge to get more hold time 2021-04-21 09:19:57 -04:00
Zane Kaminski
d88ccfb802 Documentation update 2021-04-20 01:49:44 -04:00
Zane Kaminski
a444cc31aa idk 2021-03-15 13:40:59 -04:00
Zane Kaminski
db594211fa Fabbed 2021-02-17 19:29:24 -05:00
Zane Kaminski
7d6776e480 Board done? 2020-10-07 23:32:57 -04:00
Zane Kaminski
911557e38b Removed AVR-JTAG-10 connector footprint 2020-02-09 03:40:57 -05:00
Zane Kaminski
c02ffbbe6a Separated CSDBEN 2020-01-26 15:13:37 -05:00
Zane Kaminski
f471e04244 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
3b0ca6584a New schematic revision 2019-10-13 01:40:49 -04:00
Zane Kaminski
5cc0e2fe26 added some disassembly of RamFactor 2019-09-05 13:50:38 -04:00
Zane Kaminski
215f5ca2c6 Clarifications and bugfixes, will try again 2019-09-02 01:42:07 -04:00
Zane Kaminski
396cc3c03c CPLD firmware compiles 2019-08-31 22:55:04 -04:00
Zane Kaminski
dac5bdb451 Submitted to JLCPCB 2019-07-30 17:11:31 -04:00