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how to read adc data with AT89c55WD controller
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satish.ghariya



Joined: 25 Jun 2006
Posts: 28
Location: Noida/Indore
Post06 Nov 2009 10:35   

how to read adc data
I have a descrete ADC board , in which ADC is made by using intergrator,opams etc.ADC sampling is 30 sample per second.. ADC out put is ON and OFF period in the form of pulse.when weight is increases on platform this on period is decreses and off period increases. presently i am trying to read this from 2binary counter(74ls393) i.e 16 bit, but i am not getting exact point how and when to read.here i am triggring counter(pin1) by 500nsec pulse.
I am using AT89c55WD controller

My question
1. can i read 500ns pulses by taking intrupt at edge of each pulse and measuring time period either on or offf??..is it ok??? How.
How to read through binary counter.??
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