DMA more than 16-bit from ADC to Filter

[Anonymous]

I'm trying to transfer 20-bit ADC data to Filter with referring "Filter_ADC_VDAC Example".
But, data Cohererncy and Alignment is very difficult, I could not success.

   

According to the manual, I set registers as follows,

   

    ADC_DelSig_SetCoherency(ADC_DelSig_COHER_HIGH);

   

    Filter_SetCoherencyEx( Filter_STAGEA_COHER, Filter_KEY_HIGH);
    Filter_SetDalign( Filter_STAGEA_DALIGN, Filter_DISABLED);

   

And, I tried more to change DMA settings,

   

    Swap_Endian, change target address, Filter_STAGEA_PTR or Filter_STAGEAH_PTR ... etc. 

   

Abnormal waveform appears on filter output at which setting.

   

Please tell me the correct settings.

[odissey1 · Accepted solution]

        Check this PSoC5 demo https://www.hackster.io/bmah/psoc-5lp-16-bit-and-24-bit-digital-filter-code-examples-ddcf9c?ref=chan...   

[Anonymous]

Thank you for your quick reply.

   

That is just fit for my issue! 
I'll check them.

[Anonymous]

Your demo of
"PSoC 5LP – 16 Bit and 24 Bit Digital Filter Code Examples"
was very helpful for me! 

   

I can make my demo and the demo worked perfectly.

   

Thank you for your help.