DMA Transfer between Filter and SRAM

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Anonymous
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Hi,
We are trying to acheive something like Sigma-Delta ADC -> DMA -> Filter_Block -> DMA -> SRAM. Initially we started testing
with ADC -> DMA -> Filter_Block-> Interrupt. The readings obtained were as expected. However when we tried replacing the 
interrupt with DMA {Sigma-Delta ADC -> DMA -> Filter_Block -> DMA -> SRAM} we noticed the readings not as expected. 
For the 50 tap filter the readings kept changing till the 49th sample and then it remained constant. 
I have attached the project bundle. Kindly help me figure out the issue ?

   

 

   

Thanks

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Anonymous
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I am attaching a similar project. Here DMA is used to transfer data from Holding Register to VDAC. Could you have a look at this and see if you can modify your firmware accordingly?

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