Hello
I should implement a proportional- integrator loop filter. in the integral part, there is one accumulator which I implement using full adder as in the picture. there is 6 bits at the inputs of full adder and the output with carry is 7 bit. But it seems that here the carry is ignored, does anybody have experience if I am right? In this case where should we use the carry bit?
You should think about the intended integrator behavior when the accumulator reaches the minimum or maximum value. As designed, the output wraps around which is most likely unwanted.