zynq spi interface

Hi ,
My customer is intrested in a application where he wants to use SPI for synchronous serial port for transmission of large set of data around 6 MHz. Transmit buffer is only 128B. In this case if he wants to use the processor without interrupt then he need to set the DMA with chaining. How do we program the DMA controller for these controller for these kind of application.
regards
Chandra

0 Former Member over 12 years ago

I don't know of a way to directly DMA data from the internal PS SPI controller. This Xilinx AR does implement a scheme where the QSPI controller output is routed into the PL and then connected to a DMA engine: http://www.xilinx.com/support/answers/46880.html . You might be able to do something similar with the SPI controller.

-Gary
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