Hello,
I have not any experience with CODEC.
Can anyone help me -how to configure that codec to get a Beep ( something like 100msec duration, 1KHz tone)? the MCLK is 12MHz.
Thanks,
Hello Shlomo,
First, know that the beep generator on the AIC3204 can only be used on processing block 25. so be sure to select processing block 25 in pag 0 register 60.
Second, the Beep generator registers are all shown in the datasheet with explanations on how to program them. you need to know what your DAC rate is, and once you know what that is, then you can use that in the formulas provided in the Sin(x) and Cos(x) registers to assign the frequency. convert the decimal values to two's complement binary. The duration of the beep also depends on the DAC rate as the length is programed in terms of samples. so if your DAC rate is 48khz, and you want 100ms thats 4800 samples.
For signal routing there are example configurations on pages 87-91 of the Application reference guide, or you can use the typical configurations that are in the GUI.
You mentioned your MCLK is 12Mhz, the Application reference guide also has a table of PLL coefficients for common MCLK frequencies.
best regards,
-Steve Wilson
