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frequncy meter
I need to find the frequency of a wave that does not oscillate between 0 and Vcc.....(hence no use of programmed interrupt for level detection) how do i find the frequency of the wave in this case?
I use the 80c517 a/d converter.
I need help with the asm code.
Thank all :D :D :D
8051 assembly square wave
Thanks all.
I use the Interrupt routines. But my question is how to obtain the values of tl0, th0 and r0 (3 bytes for low frequency) by program.
For example:
• I select with a Keypad 1Hz --> T/2 =500.000 us --> th0=3c ;tl0 = afh; r3=10 (10*5000us)
• If i select a...
I want to generate square wave oscillation using uc8051 with fixed duty cycle say 50% but i want to be able to change the frequency of oscillation from 1Hz to 2KHz by keying in the required value and make the uc generate it. 12MHz crystal oscillator is used. pls, i need help on how to do this.
I...
Re: 8051
can any one helpe me about who can i calculate the value of frequency by using counter
if i want to input frequency to the microcontro then i want to now what is the value of it .
please i need code to do that and any information about it.
I need code in asm languaje.
I need pass the...
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