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TLV320AIC3256EVM-U: DSP code and download firmaware

Part Number: TLV320AIC3256EVM-U
Other Parts Discussed in Thread: PUREPATHSTUDIO, TLV320AIC3256


We are using the TLV320AIC3256EVM-U with our application and it works well but we still need to add two capabilities:

1. Setting the ADCs sampling clks to 8KHz by the host CPU via the I2C, Currently we can do it by the PC and the PC application via the USB. Please  your help for guide me to do that.

2. We are interested to download an LPF up to about  3.5KHz code, to the on chip DSPs, The LPFs  will be located  before the ADCs as anti aliasing filter in order to remove higher frequencies and noises and  let mainly voice BW to be sampled by the ADCs . I saw in the application notes references that there is an existed code for these  DSPs so it implements the requested LPF.  Can you help to  get this code and guide me how can I download it to the IC internal DSPs?