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Altera_Forum
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17 years ago

Mega Wizard FIR compiler HELP

I have some questions about the FIR compiler in Quartus 7.2. Would be very thankful if you could help me. I am using a Cyclone 2 on a DE2 board. And no English is not my native language. It...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

Update.

CLK is connected to 50MHz clock

On the ast_sink_valid I have a ~48000 CLK

ast_sink_error is stuck to ground (00)

ast_source_ready is stuck to 1

Data is updated with a freq of ~48000 (same freq as ast_sink_valid).

I am getting values that indicate that the filter is working, but I get very high values. I have a 123 order lowpass fiter with a cutoff freq of 10KHz. It should be very quiet when over 10Khz but the difference between them is very small. I am using the LED to produce a stack with 24 levels to look at the amplitude of the filter output. Any ideas of what I am doing wrong?