[PIC] pwm based sinewave using pic16f877a

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maaz mobin

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hello every one
I am producing sine wave from pic 16f877a by pwm.. i have done almost every thing but i am facing an error or noise.. i am doing programming in assembly by matlab....
This noise donot remain on one place,,it keep shifting its place
 

if you are using Proteus 7 please post code and ISIS file
 

sorry i am using proteus 8 but is it could be problem of simulator??
 

Open the Oscilloscope time scale in order to identify if such noise occurs at a fixed cycle.



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