Reading Line-In instead of Mic In on the DE1

Intel® FPGA University Program

University Program Material, Education Boards, and Laboratory Exercises

Reading Line-In instead of Mic In on the DE1

913 Views

I am trying to get a basic set up where I can read a signal in through Line-in, do some basic / arbitrary processing, and send it to Line-out. However, I am only able to read from Mic in, which is less than desirable as (as far as I'm aware) it cannot take a stereo input. I am using the audio codec provided here: ftp://ftp.altera.com/up/pub/altera_material/13.1/laboratory_exercises/digital_logic/de1-soc/vhdl/lab12_design_files.zip

When tracing through this code, I was unable to determine where to set the signal to be read from Line-in instead of Mic in. My hunch is that it has something to do with the audio_and_video_config.v parameters, but I am unable to make sense of the values.

Any help would be greatly appreciated!

Link Copied

0 Replies

Community support is provided during standard business hours (Monday to Friday 7AM - 5PM PST). Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.