Search found 50 matches
- Tue Jun 17, 2003 6:08 pm
- Forum: General Discussion
- Topic: SIMM/DIMM memories
- Replies: 3
- Views: 2396
Re: SIMM/DIMM memories
I've used em for some single board computers I've made around the motorolla 68k family.<p>I built my own controller from a PLD, but I think National Semiconductor or Fairchild make a pre-packaged one now.<p>Pretty much all it is multiplexing your address space for Row/column addresses, and adding in...
- Tue Feb 25, 2003 12:57 pm
- Forum: General Discussion
- Topic: Electronics Design Career Info
- Replies: 4
- Views: 3066
Re: Electronics Design Career Info
Im with Hacklesup... Im in a small company as well.<p>Except I think the benifits balence out by the negatives. Yeah I do design, HW (digital&signal integrity), SW (BIOS&OS&Apps), Marketing, End User Support, and documentation (no sales, woot!) which is cool and keeps it interesting.<p>B...
- Mon Feb 24, 2003 4:01 pm
- Forum: General Discussion
- Topic: Electronics Design Career Info
- Replies: 4
- Views: 3066
Re: Electronics Design Career Info
What kind of electronics design?<p>I do a lot of embedded and desktop
system design, and would like to think
myself a proffesional.<p>And I wouldn't mind being interviewed,
Im always looking for an audience to
listen to me talk about myself <p>-Bill
system design, and would like to think
myself a proffesional.<p>And I wouldn't mind being interviewed,
Im always looking for an audience to
listen to me talk about myself <p>-Bill
- Sun Jan 26, 2003 8:45 am
- Forum: General Discussion
- Topic: Some Occilator Help
- Replies: 4
- Views: 2787
Re: Some Occilator Help
Yeah, you were correct about my rounding :) <p>And yeah, I have tried each of the settings with different input clocks. About 20 or so combos tried...<p>Pretty much what I am trying is to feed the Xtalin a digital clock. Its convienient because I have this big 'ol multi-frequency clock generator on ...
- Fri Jan 24, 2003 2:40 pm
- Forum: General Discussion
- Topic: Some Occilator Help
- Replies: 4
- Views: 2787
Some Occilator Help
Hello all, this is a horribly specific question.. but you all have an amazing depth for this stuff.<p>Im using an Sigmatel STAC9753 codec for a sound device I am making.<p>Im having trouble getting 2 things.<p>1. I can't seem to get the internal PLL to lock on a digital signal (the data sheet doesn'...
- Wed Jan 15, 2003 10:20 am
- Forum: General Discussion
- Topic: heated bobbers
- Replies: 7
- Views: 4433
Re: heated bobbers
What if you did it chemically instead of electricly? Using that handwarmer liquid or some other, slow exothermic material?
- Thu Jan 02, 2003 6:44 pm
- Forum: General Discussion
- Topic: PCI Bus 1
- Replies: 3
- Views: 2760
Re: PCI Bus 1
PCI and AGP have the same exact physical connections, so the bus can have dual function for a specific configuration.<p>The differences come in protocal and speed.<p>AGP has a faster bus clock and more burst data per transfer, but may contain only 1 bus master.<p>Most chipsets define 2 or more PCI b...
- Mon Dec 30, 2002 11:41 am
- Forum: General Discussion
- Topic: Autoturret
- Replies: 4
- Views: 2815
Re: Autoturret
This would be a bad a** project... I tried to do the same with one that would follow a laser pointer spot.<p>The algorythm for an automous aiming circuit with a horizontal/vertical component was rediculusly difficult with anykind of percision (read anything short of a grenade would miss )<p>What are...
- Tue Dec 10, 2002 9:31 am
- Forum: General Discussion
- Topic: Information required
- Replies: 5
- Views: 3100
Re: Information required
aound my area (california, us) hydroponics are fairly big.<p>Some use it for growing vegitables, but with questionable legality of medical marijauna people use it as to forgo the government run clubs. As well as recreational uses.<p>But despite the end uses, comercial hydroponic uses are directed at...
- Wed Dec 04, 2002 1:29 pm
- Forum: General Discussion
- Topic: Auto switch from battery to USB power?
- Replies: 5
- Views: 4413
Re: Auto switch from battery to USB power?
I would just use a little double diode ckt.<p> |\ | | /| to usb ----------| >|-----|< |------ to batt. |/ | | | \| | | To ckt power/regulator<p>I use this ckt for battery back-up on a motherboard. (my ascii drawing sucks)<p>it uses a surface mount component like about, part # bat54cct. it measures a...
- Mon Nov 18, 2002 12:28 pm
- Forum: General Discussion
- Topic: light sensitive resistor detector circuit
- Replies: 21
- Views: 10985
Re: light sensitive resistor detector circuit
Dean:<p>Sorry, been gone a little while and jumping back in late.<p>All I was saying is to think about the bulb as a switch. If the bulb is lit, the switch is closed and (here you're correct) you shouldn't see any voltage.<p>But if the bulb goes out, the switch opens and there _is_ a voltage across ...
- Thu Nov 14, 2002 6:13 pm
- Forum: General Discussion
- Topic: Different Semiconductor Devices
- Replies: 9
- Views: 4847
Re: Different Semiconductor Devices
This is like a nice little trivia quiz...<p>I know for sure the SCR is a silicon controlled rectifyer. Only used one once. Its a three- lead device, looks like a diode with an extra wire off the cathode for schematic work. Funtions like a diode with an on/off switch.<p>Im sure someone else can give ...
- Wed Nov 13, 2002 9:54 am
- Forum: Robotics
- Topic: 0 1 to -1 0 1
- Replies: 15
- Views: 10725
Re: 0 1 to -1 0 1
I've been lurking through your posts for a while now, and must say you come up with some unique ideas...<p>This 'trinary' idea is something I've thought a lot about before, mostly because of the increase in computing.<p>But what I could not wrap my mind around, and what I see as a primary draw-back ...
- Tue Nov 12, 2002 12:53 pm
- Forum: General Discussion
- Topic: HIRED GUN FOR A CIRCUIT DESIGN
- Replies: 9
- Views: 4547
Re: HIRED GUN FOR A CIRCUIT DESIGN
I'd have to agree with Joe B on this one...<p>I've done some work before like this, and if
you actually want to sell it later an NDA is
needed. Even before you even outline your
idea to the engineer.
you actually want to sell it later an NDA is
needed. Even before you even outline your
idea to the engineer.
- Tue Nov 12, 2002 12:48 pm
- Forum: General Discussion
- Topic: Collector vs Emitter
- Replies: 8
- Views: 4041
Re: Collector vs Emitter
oh yeah, sorry <p>My error correction unit between the brain and
typing fingers temporarily malfunctioned. Thanks
for catching that.
typing fingers temporarily malfunctioned. Thanks
for catching that.