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???
02/04/11 07:23
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#180994 - Insufficient analysis
Responding to: ???'s previous message
Ghulam Mustafa said:
... with a frequency of 1-3Hz, all point of the signal are acquired and displayed correctly

And how many, exactly, is "all" points?

In other words, as Michael asked, what is your ADC sampling rate?

but when the same signal with a higher frequency is transmitted than it goes like straight line and the curve is not acquired (sic) properly.

You need to determine whether the problem lies in the acquisition of the samples, or the transmission of the data to the PC.

(it could also be in the reception of the data at the PC, or the interpretation of the data by the PC)

From this experience i have thought that a higher baud rate controller can pick the signal correctly.

If the problem is with the acquisition of the samples, then changing the transmission rate won't make any difference - will it?



List of 40 messages in thread
TopicAuthorDate
Transmitting a 100 Hz signal through 8051            01/01/70 00:00      
   What is your problem?            01/01/70 00:00      
   RE: "the 8051 has transmission speed upto 19200"            01/01/70 00:00      
      the 8051 has transmission speed upto 19200            01/01/70 00:00      
         Incorrect analysis            01/01/70 00:00      
            Timing            01/01/70 00:00      
               Doesn't help to send at exact time - PC receive will jitter            01/01/70 00:00      
                  Windows For Sure Will...            01/01/70 00:00      
                  A Labview Limitation?            01/01/70 00:00      
         What makes you think that?            01/01/70 00:00      
            What makes you think that?            01/01/70 00:00      
               How fast are you sampling            01/01/70 00:00      
               Insufficient analysis            01/01/70 00:00      
                  20x            01/01/70 00:00      
         you can (I have) easily get 460kb.            01/01/70 00:00      
            No need to look for high baudrates            01/01/70 00:00      
               It doesn't help            01/01/70 00:00      
                  At least ...            01/01/70 00:00      
   Haven't you done this before...?            01/01/70 00:00      
   Here are the results in the form of images            01/01/70 00:00      
      Didn't bother to preview, did you?            01/01/70 00:00      
         How did you concluded?            01/01/70 00:00      
            Duplicate!            01/01/70 00:00      
         How did you concluded?            01/01/70 00:00      
            I think you're wrong            01/01/70 00:00      
            Looks close to 'as expected'            01/01/70 00:00      
               Seems like around 200Hz sample rate            01/01/70 00:00      
                  4 samples/period for the 50Hz signal            01/01/70 00:00      
            Not sure about your concept            01/01/70 00:00      
               Depends            01/01/70 00:00      
               Continuous monitoring?            01/01/70 00:00      
                  Ambiguity            01/01/70 00:00      
   Displaying the Signal at real time            01/01/70 00:00      
      Still not mentioned what the problem is            01/01/70 00:00      
         I do not think they know the problem            01/01/70 00:00      
            A Ring Buffer ...            01/01/70 00:00      
               A double-buffered solution also possible            01/01/70 00:00      
            What is the Problem.            01/01/70 00:00      
         real RS232?            01/01/70 00:00      
            Huge FIFO in USB-to-serial adapter            01/01/70 00:00      

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