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hi, just for my extra knowledge.. at least how many samples is needed for one cycle to plot a sinewave .
some says follow the nyquist theoram which is 2 samples/cycle, others says 5 samples/cycle. Is there any link which explains about all these?
Re: convert <= 5k hertz sinewave with PIC trasmit through
The amount of 96 readings can be quite little when you're measuring a really high frequency baudrate like 5khz sinewave. But you're saying that once the sinewave is being sampled at that amount of 96 readings, which is then saved into...
Re: convert <= 5k hertz sinewave with PIC trasmit through
How do you get 6 ms for sending 96readings where each readings which i send has 10 bits (including the start and stop bit) through a 115k baudrate? Do you mean 69 readings?
69*10 = 690 bits
690/115000 = 6ms
Re: convert <= 5k hertz sinewave with PIC trasmit through
Even with that 250k baudrate , the serial port can't sample that fast, maximum for a serial port is 115200 baudrate. What other methods can you suggest to transfer that amount of samples? What is the maximum baudrate for a parallel port?
Re: convert <= 5k hertz sinewave with PIC trasmit through
32 Tosc for a 20Mhz will give a minimum Tad of 1.6us. Conversion time of 12 *Tad plus the aquisition time will give the sampling time. this is according to one of the website written by a lecturer. Through calculation, it is about 25k...
how to convert from baud to hertz
yes, i am aware about sampling the waveform 5 times the maximum frequency. Just to enquire if the internal ADC of the PIC16F877A has enough maximum sampling rate which i can use to sampling that high frequency. Can the sampling rate of the internal ADC be...
baud hertz conversion
Hi,
Is there a way to convert a frequency of up to 5k hertz or below of a sinewave into digital values using the internal ADC of a PIC16F877A and transmit the values using uart to the pc. How do i make sure that once i have the correct amount of the sampled values of the...
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