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rectangular wave generator for 8051

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greatkiran007

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using microcontroller ,plz provide me the program for a frequency of rectangular wave of about 2millihertzs, and the Ttotal= 432 sec, Ton =1 sec, Toff= 432sec
input voltage=5v, output=5v....

plz provide the code,,,,,,,,,,,,,,,,,,,,,
 

this probably not the forum for this question you should use the micro controllers forum....
search about using timers in 8051 and you will find enough material for your question...
have a look at the following link
1 second delay : 8051 Microcontroller Projects AVR PIC Projects Tutorials Ebooks Libraries codes
you can generate a general delay say about 50 ms and then count for your required delay
in your case 50ms x 20 = 1 sec (on time) and 8640 times for 432 sec's (8640 x 50 ms = 432 sec's) off time....
change the output of any pin on these delay events and there you go you have the required rectangular wave....

Hope this helps...
 
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