circular read address generator

Hi,

I've used circular buffers in DSP programming, everytime you read a value from RAM, the address pointer increments so you don't have to pay attention to addressing. "Circular" means that at the end of the memory, the address pointer makes a wrap around and starts at the beginning of the memory, again. This is usefull for signal processing, e.g. FFT or something.

Stefan

hi stefen

can we use circular ram in such way that it help to reduc

memory size i.e. suppose if we don't need some of memory space in th begenning than we rewrite that space with some other data and the us the

hi ravinda,

I did't get your point exactly; you always have to use something like adress decoders in order to use the whole memory space for different IPs or something. With circular buffers you just define the length and this is the space that is used. The other memory is free and can be used! There is no difference in need of memory space between circular generated adresses or just adressing your data yourself.

rgds,

Stefan

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