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Altera_Forum's avatar
Altera_Forum
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18 years ago

Compatibility

Before I upgraded to 7.2, I used 5.1. I really like the interface for FIR megacore function. However, now that I upgraded to 7.2, all the interface is changed to AST interface. How do i con...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

The FIR core now follows the Avalon ST interface spec. You can seperate the whole interface into two parts, one is sink, one is source. Sink_* interface is used to accept the data from Source_* interface. Other signals are as following:

sink:

valid: input: means the data is valid

ready: Output: means that the core is ready to get the data or not. You should keep valid signal low if this signal is not high. otherwise the core can't accept any data.

SOP: start of the packet, this is used when you are dealing with the multipler channels design. SOP means channel 0 data. and EOP means the last channel data.

Source side will be the completely reversed as the sink part.