Embedded

Debugging Embedded Dram - Need Help
Hi - I'm attempting to debug a problem with an existing embedded controller board. The board uses a MC68020 and uses either 1 or 2 banks of 30pin simm memory. I think this is a 199? design. The board supports either 1M or 4M memory. The SIMM memory is configured to be accessed as a 16bit wide data bus. Th... 23 Jun 2008 16:51

Fraud Warning to Electronic Companies.
Don McKenzie wrote: example: http://www.fraudmonger.com/cases/erica-frisbie.htm Interesting page. I notice the e-mail exchange started with the usual generic "I am interested" message, which is the dead giveaway. Almost always worded exactly the same. ... 9 Jul 2008 17:50

tiny inductor with every bypass cap?
Hello, I was looking at the schematics for a DSP-based board, running at 100 MHz. They have a tiny inductor with every bypass cap around the DSP. Do you think this is necessary? This DSP has analog stuff built-in. If we do not need analog, can the inductors be eliminated? Thanks, T.I. ... 26 Jun 2008 08:25

The Right PCB House
Hello, I need to have a 4-layer board made, a prototype, 2 boards, nothing fancy. I did some research in this newsgroup and I narrowed it down to Sierra Pro Express, ExpressPCB, and AC Advanced Circuits. Do you think I made the right choice? Do you have any recommendations? I would like to receive the boa... 7 Jul 2008 18:40

a PC Based Oscilloscope?
Hello, My company wants to buy an oscilloscope. The scope that meets our needs is around $7,000. I am sure we can save much money if we buy a PC-based unit, like Picoscope. Do you have experience with PC based scopes? Do you recommend them for serious work? Thanks ... 2 Jul 2008 04:43

ANNOUNCE:-- TimingAnalyzer Free Version -- Draw timing diagrams
In article <LOd3k.9642$Ri.1039(a)flpi146.ffdc.sbc.com>, Vladimir Vassilevsky <antispam_bogus(a)hotmail.com> wrote: rickman wrote: I couldn't figure out how to do a lot of things and I ended up installing Win2000 over it. So what exactly is better about Linux? I second your opinion regarding... 21 Jun 2008 07:39

which oscilloscope?
Hello, My boss asked me to evaluate oscilloscopes and to recommend one. I know Tektronix and LeCroy. Which is better? Are they any others? Ideally, we would get a 4-channel scope at 300 MHz, with a 5 million sample record length. Thanks for your advise. T.I. ... 3 Jul 2008 15:35

Hardware before SPI interfacing
Hi, I will connect my ADE7758(metering IC) to a Z8 Encore! MCU through SPI (4pins: SCK,MISO,MOSI,CS). My problem is, although the input and output voltage ratings of the two chips match(5-6Volts input and output), I feel that there should be some hardware in between, meaning, I should not DIRECTLY connect the SPI pins ... 23 Jun 2008 20:57

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HP-HIL Tech Reference Manual Needed
Jim Flanagan wrote: Does anyone know where to find a softcopy of the HIL Technical reference document (HP #45918A)? Agilent is no help. Thanks. Jim Did you try the HP site? HP-HIL was never an instrumentation product, but rather a human-computer interface. RB ... 20 Jun 2008 21:29