Zane Kaminski
b1757d3d0f
Compiled CPLD again
2023-02-28 11:23:37 -05:00
Zane Kaminski
4ae69c54f3
New project
2023-02-28 11:17:29 -05:00
Zane Kaminski
debc1f02fe
Release candidate?
2021-09-14 03:57:20 -04:00
Zane Kaminski
ed0821b322
Added CKE back
2021-04-18 20:24:58 -04:00
Zane Kaminski
4fd3d2ff3f
Make apple boot
...
Apple boots but SDRAM not working. Register R/W/increment works
2021-04-18 03:54:45 -04:00
Zane Kaminski
fc2e875ac2
Works?
2021-04-03 03:44:42 -04:00
Zane Kaminski
763861e444
ugh
2021-03-19 16:38:48 -04:00
Zane Kaminski
e4bfc93b1f
before remove UFM
2021-03-19 14:23:33 -04:00
Zane Kaminski
a336f5969b
hmm
2021-03-19 06:59:22 -04:00
Zane Kaminski
4defba0f50
better
2021-03-19 06:45:31 -04:00
Zane Kaminski
72851cefc5
ugh
2021-03-19 02:56:20 -04:00
Zane Kaminski
fdbc92725a
Remove old CPLD stuff
2021-03-15 13:40:41 -04:00
Zane Kaminski
3e06d30382
Fixed bugs in new PLD stuff
2019-10-20 22:41:24 -04:00
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
cf16763591
24-bit counter, CAS fixed
2019-10-11 20:34:51 -04:00
Zane Kaminski
b0a001aa58
Clarified assignments
2019-09-06 17:26:42 -04:00
Zane Kaminski
47a4c012d7
Pipelined addition
2019-09-04 21:45:56 -04:00
Zane Kaminski
a73cbf10ef
Clarifications and bugfixes, will try again
2019-09-02 01:42:07 -04:00
Zane Kaminski
5b230c0966
1MB CPLD design seems to work, fails Apple BIST
2019-09-01 21:18:44 -04:00
Zane Kaminski
e78807ce85
CPLD firmware compiles
2019-08-31 22:55:04 -04:00