FIR filter example is not working on CY8CKIT-059

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Jweaver
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I am trying to implement the example filter code for the cy8ckit-059,  according to this video:  http://www.cypress.com/video-library/PSoC/how-create-analog-filter-psoc-5lp/385626

Everything seems fine- all components updated, no errors,  but no signal output of the VDAC.  There is something wrong with the DMA implementation I think.  The circuit looks like below.  Attached is the workspace bundle.  

I also tried to probe the eoc output of the ADC,  but there's no signal.  Is it because this is meant only for DMA ?  

Thanks in advance!

Filter_problem.JPG

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James,

One way to circumvent signed/unsigned issue with Filter-DMA-VDAC8 is to use extra logic in between, see for example this thread and example project in #7:

Class D adcDelSig>Filter>Pwm using DMA only

I will take a look again, maybe there is some other trick to directly DMA that I missed.

/odissey1

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