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DMA ping pong buffer using FMCOMMS5

Question asked by mbharathi@bel.co.in on Aug 26, 2015
Latest reply on Aug 30, 2015 by DragosB

We are using FMCOMMS2 and FMCOMMS5 Bare metal reference designs on Zed board and ZC706 respectively. We need to continuously collect ADC samples with the help of DMA without stalling the processor. Whatever available code adc_core.c is in polling mode in that the processor waits till the DMA completes the transaction. Is there any reference design like DSP DMA controllers where in Ping Pong mode of data collection would be possible without any data loss without any processor intervention.

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