Forum Discussion
Altera_Forum
Honored Contributor
8 years agoProblem with FIR II core
Hello, I am trying to use 11 taps symmetrical FIR using the IP Catalog in Quartus 14.1 My data are in signed Q.15 format with sampling rate 288MHz. I get the data in packets of 4 samples (...
Altera_Forum
Honored Contributor
8 years agoHi Kaz,
I don't understand what you mean by "path". Probably we still misunderstood. Let me try again: 1. I have single 16 bit, 288Hz data stream (you can think it represents one analog signal acquired with 16bit ADC, clocked with 288MHz) 2. I want to filter this signal (in digital domain) using symmetrical FIR with 11 coefficients 3. My current system is implement such a way that I get four 16 bit samples from the stream at once. (This means that I get 4 samples each 72 MHz) How would you approach this problem in Quartus ? In my current system I have access to 72MHz clock. I don't have 288mhz but probably I can use PLL to make it. I would prefer I solve this using FIR II core clocked at 72MHz, if possible? (even for the sake of 4 times more hardware) But if this is the only option I will try to go with 288Mhz clock. Is my question more clear now? Regards Dimitar