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???
05/12/12 15:10
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#187347 - Indeed
Responding to: ???'s previous message
Mahmood Elnasser said:
It is a tool like any other tool.

It would be OK for many of the basic things that a newbie would need; eg,

  • Seeing that a GPIO pin is toggling;

  • Seeing that a UART output is transmitting, and at (near enough) the correct rate;

  • etc.

    The difficulty, though, is for a beginner to realise what the actual limitations are - and their implications...

    So, I'd say it's probably better that nothing!

    Not convinced that $200 might not be better spent, though: http://www.8052.com/forumchat/read/187343



  • List of 74 messages in thread
    TopicAuthorDate
    DSO for cheap!            01/01/70 00:00      
       very good            01/01/70 00:00      
          Limitations            01/01/70 00:00      
             test results            01/01/70 00:00      
                That's valuable information            01/01/70 00:00      
             well, the fact is ..            01/01/70 00:00      
                tektronix 475 comparison            01/01/70 00:00      
                   Really? Why?            01/01/70 00:00      
                   another double post ... sorry            01/01/70 00:00      
       I think ...            01/01/70 00:00      
          Application dependant            01/01/70 00:00      
             Indeed            01/01/70 00:00      
                It's still too low a bandwidth, wouldn't you say?            01/01/70 00:00      
       just curious, Joe could you try            01/01/70 00:00      
          Unusual with short pulses for hobbyist projects            01/01/70 00:00      
             is the clock running?            01/01/70 00:00      
          Sorry, but no I can't.            01/01/70 00:00      
          10nSec Pulse            01/01/70 00:00      
             "at random" means what exactly ?            01/01/70 00:00      
                Answers            01/01/70 00:00      
                   more observations            01/01/70 00:00      
                      It may not be the sample rate ...            01/01/70 00:00      
                         digital vs analog            01/01/70 00:00      
                            Don't get me wrong, here ...            01/01/70 00:00      
                               poor mans's scope            01/01/70 00:00      
                                  Doesn't it depend on what THEY mean by bandwidth?            01/01/70 00:00      
                                     20 nsec steps            01/01/70 00:00      
                                        Well, one thing at a time ...            01/01/70 00:00      
                                        Impulse Tests are better            01/01/70 00:00      
                                           more capable scope            01/01/70 00:00      
                                              I must have missed a step ...            01/01/70 00:00      
                                                 TEK475            01/01/70 00:00      
                                                    here's another alternative ...            01/01/70 00:00      
                                                       DAC and pot in parallel?            01/01/70 00:00      
                                                          Logically, not physically            01/01/70 00:00      
                                                       new theory            01/01/70 00:00      
       3MHz is rather poor Bandwidth ?            01/01/70 00:00      
          ordinary            01/01/70 00:00      
             Ther are many params needed            01/01/70 00:00      
       "only" $200 ?            01/01/70 00:00      
          Low cost oscilloscopes            01/01/70 00:00      
             £291 > 2*($199)            01/01/70 00:00      
                It doesn't always work that way            01/01/70 00:00      
                   Once upon a time ...            01/01/70 00:00      
       SDS8202            01/01/70 00:00      
          Read all the "fine print' first ... and ask any questions            01/01/70 00:00      
             bought it            01/01/70 00:00      
                Please let us know how this works out for you            01/01/70 00:00      
                   datasheet            01/01/70 00:00      
                      2mV/div - but min trig level?            01/01/70 00:00      
                         Tests            01/01/70 00:00      
                            24ns            01/01/70 00:00      
                               and that's the crux            01/01/70 00:00      
                                  FPGA pulse Expander (edited)            01/01/70 00:00      
                                     some love the mother, some love the daughter            01/01/70 00:00      
                                     Here's omne fairly simple thing ...            01/01/70 00:00      
                                     self calibtrate?            01/01/70 00:00      
                                        interesting            01/01/70 00:00      
                                           yes            01/01/70 00:00      
                                              glurk            01/01/70 00:00      
                                                 DCMs            01/01/70 00:00      
                                                    Well....            01/01/70 00:00      
                                                       I don't know where you're going with this ...            01/01/70 00:00      
                                                 xxxxx            01/01/70 00:00      
                               333ps            01/01/70 00:00      
          SDS9302            01/01/70 00:00      
             So, how are you exercising this new 'scope?            01/01/70 00:00      
                so far so good            01/01/70 00:00      
                   So far so good ...            01/01/70 00:00      
                      rise time            01/01/70 00:00      
                         The rise time indicates that high frequencies gets dampened            01/01/70 00:00      
                         What does "bandwidth" mean?            01/01/70 00:00      
                            good test            01/01/70 00:00      
                               Perhaps you should repeat the test ...             01/01/70 00:00      

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