1 Reply Latest reply on Jan 23, 2018 9:29 PM by GeonaM_26

Regarding the application of Digital Filter block (DFB)

shimizu.hiro-00_1679296 Jan 22, 2018 9:00 PM

Hello, members.

Could you tell me about an application of using the Filter block (DFB)?

There was a code example where the output of the ADC was filtered using DFB.

Other than that, how is DFB used?
Are there any application examples using DFB?

Best Regards

1. Re: Regarding the application of Digital Filter block (DFB)

GeonaM_26 Jan 23, 2018 9:29 PM (in response to shimizu.hiro-00_1679296)
Hello Shimizu-San,

The digital filter block (DFB) has programmable 24*24 multiplier/accumulator (MAC), an arithmetic logic unit (ALU), shifter, and various program and data memory to store instructions and data that can be used as a mini DSP processor in your application. The DFB can be used to offload the CPU and can speed up arithmetic calculations that involve intensive multiply-accumulate operations. Typical applications of DFB are: vector operations, matrix operations, filtering operations, and signal processing. Some of the available projects other than filtering code example are listed below,

Measuring an RMS signal on a PSoC5: https://www.hackster.io/antedeluvian/measuring-an-rms-signal-on-a-psoc5-a9fa6d
Digital Filter Block (DFB) Code Example part of PSoC Creator demonstrates matrix multiplication by a scalar.

Best Regards,
Geona Mary
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