real time FIR implementation in FPGA

First you should take a look at the definition of "real-time" :

So if you design a hard real-time system, the main requirement is that your FPGA outputs some signal after some maximum time, after some input arrives. E.g. if you feed a signal every second and you specify, that the output must be available after one second and if your FPGA does this, it is operating at real-time.

If you have already samples (e.g. a 16 bit parallel signal), just feed it to the FPGA. Maybe the sampling clock would be a good idea, too.

hai,

if you feed a signal every second and you specify, that the output must be available after one second and if your FPGA does this, it is operating at real-time

I don't know how to feed the samples to FPGA input pin as the samples are coming from outside the chip?what is the logic behind this?

For testing purpose i used a text file and dump my samples into it and given to the input of FPGA..the same task how can i do it in the board which has this FPGA?pls clarify the same

regards, raj

ems.de

If you say "the samples are coming from outside the chip", I assume you have already some digital signal source. Take a look at the description of the source, then solder the pins of the FPGA to the source (maybe after level converting) and implement the data processing in VHDL.

If you don't have digital signals, use a digital to analog converter (DAC) and take a look at the datasheet of the DAC how to handle the data in your FPGA.

Maybe I should filter gmail-postings :-)

Correction: I mean analog to digital converter (ADC).