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Re: CP/M?

how's the +5v regulator it must be getting a little hot?
by galaga
May Wed 18, 2011 4:58 pm
 
Forum: Altair 8800 Micro
Topic: CP/M?
Replies: 30
Views: 42821

Re: CP/M?

wow very very cool :D the layout look prefect.. and room for more hehe buy two card's and have 4 disk's :lol:
but the battery makes me nervous (to many old PCB repairs) is the volt drop to high for a cr2032???
(i'll just put it off the pcb)
by galaga
May Mon 09, 2011 12:52 am
 
Forum: Altair 8800 Micro
Topic: CP/M?
Replies: 30
Views: 42821

Re: CP/M?

looks cool is there a pic of the dev board??? please
by galaga
May Fri 06, 2011 8:11 pm
 
Forum: Altair 8800 Micro
Topic: CP/M?
Replies: 30
Views: 42821

Re: Altair 8800 PC

i don't know if it's still on the cards(vbriel is very busy) but it would not be to hard to buy a micro and build a front panel and run wires? As there no IC on the front panel.. but you still need to fit it to a pc box at the end of the day! i cant see a full pc altair kit been under $350 :( and lo...
by galaga
May Tue 03, 2011 10:20 pm
 
Forum: Altair 8800 Micro
Topic: Altair 8800 PC
Replies: 2
Views: 4519

Re: Altair 8800 Micro doesent track

has it come??
by galaga
Apr Mon 25, 2011 12:40 am
 
Forum: Altair 8800 Micro
Topic: Altair 8800 Micro doesent track
Replies: 3
Views: 4479

Re: altair micro IO port's

its all a bit confusing in basic8k i can scan the ports and the only ones the change are 16,17,18,255 but the basic get's to the key data before i can read it :(
i'll have to use asm?? have you found good altair assembler/monitor program??
by galaga
Apr Sun 24, 2011 9:26 pm
 
Forum: Altair 8800 Micro
Topic: altair micro IO port's
Replies: 2
Views: 4167

Re: RS232 Hack

yes both will work fine :)
by galaga
Apr Thu 21, 2011 4:04 am
 
Forum: Altair 8800 Micro
Topic: RS232 Hack
Replies: 7
Views: 11179

Re: CP/M?

just been googleing found this site
http://www.cpm.z80.de/source.html

hope its of value

matt
by galaga
Apr Mon 18, 2011 4:33 pm
 
Forum: Altair 8800 Micro
Topic: CP/M?
Replies: 30
Views: 42821

Re: CP/M?

I decided to create a RAM drive card that will act as a duel disk drive.

why not use CF in memory mode??

are you going to add a space for a speak-jet and LM386 "1w" amp??

also how hard would it be for pin 12(on the8515) as an irq for the i8080???
by galaga
Mar Mon 28, 2011 4:06 am
 
Forum: Altair 8800 Micro
Topic: CP/M?
Replies: 30
Views: 42821

Re: Tech notice on ATMEGA8515 @ 20mhz

ok i did some math i ran that prog and it did it in 5:00mins (wow you save 59sec!!!! :wink: ) so i did some more cal's and i worked out the atlair8080u is about 1.34MHz at 16MHz AVR8515 so 1.55MHz at 18.46MHz .. 1.675MHz at 20MHz therefore 24MHz would be needed to get it up to full speed 2.01, a maj...
by galaga
Mar Thu 17, 2011 4:21 am
 
Forum: Altair 8800 Micro
Topic: Tech notice on ATMEGA8515 @ 20mhz
Replies: 6
Views: 17010

altair micro IO port's

can some one tell me about the altair micro IO port's
i know theres 255 on the 8080 but some ppl used to make easy by using one address per port.. so 8 etc.
is there a memory and IO map..
thanks matt
by galaga
Mar Wed 09, 2011 3:26 am
 
Forum: Altair 8800 Micro
Topic: altair micro IO port's
Replies: 2
Views: 4167

Re: Hack N Mods

are you going to have a switch internal/external or automatic switch :P
by galaga
Mar Wed 09, 2011 3:12 am
 
Forum: Altair 8800 Micro
Topic: Hack N Mods
Replies: 5
Views: 8699

Re: Hack N Mods

2nd mod. After running my unit I found 5v reg was to hot for my taste.
as vbriel was nice and included a aluminium plate :)
so i unsolder the 5v reg and drilled a 3mm? hole found a 3 pin plug and socket off and old TV.
one cool regulator. :idea:
thanks matt
by galaga
Mar Thu 03, 2011 4:08 am
 
Forum: Altair 8800 Micro
Topic: Hack N Mods
Replies: 5
Views: 8699

Hack N Mods

Hack N Mods I'll start. adding a flashing led to the step switch so it would step though each instruction.. basicly i swaped the run stop switch with a on-off-on drilled a hole about 3mm for it to fit.. then ran the "flashing led" form the new hole to middle of the step switch. -----------...
by galaga
Mar Thu 03, 2011 3:40 am
 
Forum: Altair 8800 Micro
Topic: Hack N Mods
Replies: 5
Views: 8699

Re: What serial numbers have shipped?

hey all 109 here :) have all ready mod'ed it add a speaker for my sc-01 voice chip(to be added later) and put the +5v reg on to the back panel, so it runs cool now and add a flashing led to the step switch so it runs slow :D hehe have not had it a week :P p.s. big thanks to vbriel for signing it!
by galaga
Mar Wed 02, 2011 3:28 pm
 
Forum: Altair 8800 Micro
Topic: What serial numbers have shipped?
Replies: 37
Views: 67383
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