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Altera_Forum
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18 years ago

CII DSP kit audio examples using DSP Builder

I made a sample driver for TLV320AIC23 Stereo Audio CODEC chip which is mounted on CII DSP kits in Verilog-HDL. I attach the files with two very simple DSP Builder projects. sound_basic_dspb\sound...
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Altera_Forum
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17 years ago

Hi Omeecd,

I’ve misunderstood your environment. I assumed that you had 2c35 DSP kit. But your board is DE2 board. Yes, DE2 do have different pin assignments than 2c70/35 DSP kit.

I reviewed DE2 schematic and found my example mdl/Verilog is not compatible with DE2 board, unfortunately. I assume that the audio codec chip can be accessed in 3-wire mode for the control register interface. But MODE pin of the codec chip is tied to GND in DE2 board. This means that you must communicate with the codec chip through 2-wire(I2C) mode in DE2 board.

You need to change pin assignments and modify the design to talk with the codec chip via 2-wire interface for DE2. The main code to be modified is HDL/aic23_avalon_mm_ctrl.v. I think the DE2_i2sound demo source code attached with DE2 is helpful as a start point.

I can not promise the time line, I may modify my code to support I2C interface….

EOFZ