Register
Help
Remember Me?
What's new?
Activity Stream
New Posts
New Group Messages
New Events
New Articles
New Blog Entries
Mark Forums Read
Forum
Blogs
Articles
Advanced Search
Home
Activity Stream
If this is your first visit, be sure to check out the
FAQ
by clicking the link above. You may have to
register
before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.
Activity Stream
Filter
Sort By
Time
Show
Recent
Recent
Popular
Popular
Anytime
Anytime
Last 24 Hours
Last 24 Hours
Last 7 Days
Last 7 Days
Last 30 Days
Last 30 Days
All
All
Photos
Photos
Forum
Forums
Articles
Articles
Blog
Blogs
Groups
Groups
New Activity (
)
Please reload this page to view the 200+ new activity items that have been created.
Older Activity
Today,
09:24 PM
Chuck(G)
replied to a thread
Help identify microcontroller in an XT keyboard
in
PCs and Clones
I see where it says "Restore OSCCAL". Well, maybe we can make it work anyway. Change the word at 03FF to 34 40. (pulling a value out of the...
see more
43 replies | 702 view(s)
Today,
09:19 PM
soon668
replied to a thread
Help identify microcontroller in an XT keyboard
in
PCs and Clones
and here is the config available for the programmer
see more
43 replies | 702 view(s)
Today,
09:14 PM
soon668
replied to a thread
Help identify microcontroller in an XT keyboard
in
PCs and Clones
I have another PIC, but reading it seem to show 03ff has value of 3F as well. Here screenshot of content read of an new unprogrammed PIC.
see more
43 replies | 702 view(s)
Today,
08:55 PM
Chuck(G)
replied to a thread
Help identify microcontroller in an XT keyboard
in
PCs and Clones
The upper 2 bits set to 0 on the odd bytes is correct--the program memory in a PIC12 is 14 bits wide. However Your programmer over-wrote the...
see more
43 replies | 702 view(s)
Today,
08:32 PM
kb811
replied to a thread
reproduction PDP 8e toggle switches?
in
DEC
An update. The second half of the following is mostly about "RAL Design" colours and the use of paint. See also: "freebies". RAL Classic: there...
see more
95 replies | 8721 view(s)
Today,
08:20 PM
RootHouston
replied to a thread
Would a Gotek floppy emulator work on my IBM PS/2 Model 80 (8580-A21)?
in
Later PCs
Thanks. It looks like it's a private group, but I've asked for permission to join. Until then I cannot see anything there.
see more
2 replies | 30 view(s)
Today,
08:05 PM
dabone
replied to a thread
Petsd
in
Commodore
You'll have to wait for bitfixer to release it, like I said, I'm just helping beta test.
see more
22 replies | 1246 view(s)
Today,
07:51 PM
soon668
replied to a thread
Help identify microcontroller in an XT keyboard
in
PCs and Clones
and the configuration value at address 400EH-400FH is D431
see more
43 replies | 702 view(s)
Today,
07:41 PM
the3dfxdude
replied to a thread
Best lightweight word processor for MS-DOS 3.3?
in
Vintage Computer Software
I thought EDLIN was dropped by DOS 5 or at least certainly never was included in Windows. Did they add it back to Win10 trying to be cool? EDIT:...
see more
20 replies | 246 view(s)
Today,
07:31 PM
the3dfxdude
replied to a thread
Is it possible to repair a model F keyboard?
in
PCs and Clones
Did you check the internal ground cable if it has a good connection? That would be where I'd look if the keyboard behaved like that.
see more
1 replies | 12 view(s)
Today,
07:25 PM
Hugo Holden
started a thread
Bytesaver, block move program & BASIC-5
in
S-100
The 2708 UV EPROMS finally arrived in the post from Germany. I got the Bytesaver up and running with Processor Technology's BASIC/5 in PROMS. The...
see more
0 replies | 6 view(s)
Today,
07:16 PM
soon668
replied to a thread
Help identify microcontroller in an XT keyboard
in
PCs and Clones
so indeed the programmer changed something. Here I attached comparison of content of HEX file and what I read from the PIC. read from PIC: ...
see more
43 replies | 702 view(s)
Today,
07:02 PM
soon668
replied to a thread
Help identify microcontroller in an XT keyboard
in
PCs and Clones
the value is 3F, here i attached a screenshot
see more
43 replies | 702 view(s)
Today,
06:42 PM
Chuck(G)
replied to a thread
Help identify microcontroller in an XT keyboard
in
PCs and Clones
I take it that your programmer did not modify location 03ffh, and did program the configuration fuses as the source shows: __CONFIG ...
see more
43 replies | 702 view(s)
Today,
05:43 PM
GiGaBiTe
replied to a thread
Sanyo VM 4509 DC adapter
in
Vintage Computer Hardware
There was a shift in the early to mid 90s of barrel connectors going from center negative to center positive, where most devices before that time had...
see more
5 replies | 65 view(s)
Today,
05:26 PM
durgadas311
replied to a thread
NS32000 Series Family Thread (porting TDS to a NS32016 user wire-wrap board)
in
Other
Ah, yes, enlightening. So it's actually a multiplexed data/address bus and one can *only* assume the address is valid while /ADS is active.
see more
17 replies | 1401 view(s)
Today,
05:13 PM
hargle
replied to a thread
EPYX World Games Disk Image
in
Vintage Computer Software
Epyx World Games is a booter, so you will not see any files on the disk when you look at it under DOS. Have you tried booting it on an appropriate...
see more
1 replies | 41 view(s)
Today,
05:04 PM
bakemono
replied to a thread
NS32000 Series Family Thread (porting TDS to a NS32016 user wire-wrap board)
in
Other
I had the same thought. According to pages 17-18 in this PDF there is an address strobe line /ADS which goes low to indicate a valid address. I...
see more
17 replies | 1401 view(s)
Today,
05:02 PM
Chuck(G)
replied to a thread
QIC DC600A tapes with broken drive belts
in
General Vintage Computer Discussions
Strange. There used to be a stock number for the 6" bands--SF-6500, package of 50 (I have one such here). Perhaps a pleading to...
see more
27 replies | 2193 view(s)
Today,
04:56 PM
ropersonline
replied to a thread
Has a game ever used the IBM 5151's "long" P39 phosphor to get around charset limits?
in
PCs and Clones
Thanks for pointing that out; I hadn't really considered that properly.
see more
22 replies | 835 view(s)
Today,
04:50 PM
retro-pc_user
replied to a thread
386/486 Hybrid board
in
Later PCs
The board is a J-Mark Computer Corporation OPTI-495SX 3/486WB v1.1 and it has a 238 pin LIF Socket 2 for the 486 CPUs and a 387 LIF socket in the...
see more
1 replies | 45 view(s)
Today,
04:48 PM
d4vid
replied to a thread
Which acoustic coupler is compatible with an IBM 5150?
in
PCs and Clones
Thanks for the info. While I was waiting for replies I went ahead and ordered a Hayes 2400 bps modem, and a Konexx Acoustic Coupler. The Konexx...
see more
3 replies | 29 view(s)
Today,
04:45 PM
ropersonline
replied to a thread
Do VGA monitors distinguish between NTCS and PAL?
in
PCs and Clones
Yes they did, as per VileR's link, but note that that's not what I was on about above. The Commodore 1084 I mentioned was at best semi-compatible...
see more
13 replies | 472 view(s)
Today,
04:27 PM
ropersonline
replied to a thread
Which acoustic coupler is compatible with an IBM 5150?
in
PCs and Clones
If you use an acoustic coupler, you won't need a modem too. Mind you, the audio quality on many mobile networks is atrocious and iffy, so between...
see more
3 replies | 29 view(s)
Today,
04:14 PM
erikarn
replied to a thread
oh look! I slipped and acquired a 5150!
in
PCs and Clones
yeah, I was eyeballing the lofi stuff. I have a 256k conventional RAM card here in this unit; I was wondering about designing up a combo 2M EMS +...
see more
5 replies | 185 view(s)
Today,
04:07 PM
Chuck(G)
replied to a thread
Help identify microcontroller in an XT keyboard
in
PCs and Clones
That's good. Give me a bit to think about this one--many of these things have been built with exactly this firmware, so it's got to be something...
see more
43 replies | 702 view(s)
Today,
04:02 PM
krebizfan
replied to a thread
ALR RAM Expansion 16 bit ISA Card
in
PCs and Clones
It looks like a standard 2 MB expansion card. I can't read the chips so it might have a different capacity but 256 kbit chips would have been the...
see more
1 replies | 16 view(s)
More Activity
No More Results
No Recent Activity