On 21/02/2011 23:01, IVP wrote:
>> I'm in desperate need of some sort of "oscilloscope" but don't really
>> have the money to buy one at the moment. So I decided to make one
> Of all the test gear I have, the one which I find tends to be of most hel=
p
> debugging and solving problems is the logic analyser. At one time I had
> just a cheap 6MHz scope, and realised very quickly that an analyser is
> essential when working with micros. I built my first one based around a
> 68HC705 and SRAM. The next used a 20MHz 16F84, PLL and ex-
> mobo fast cache RAM. Both of those uploaded to the PC via serial.
> The current one is a 16-channel USB. Each has been invaluable in its
> time, and a good spec analyser is not difficult to DIY if you have logic
> chips doing all the donkey work
>
> Joe
A home made logic analyser is more sense than a scope. There is is=20
software for Pickit2 and also for serial port handshake pins (not very=20
many inputs!)

--=20
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