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spi chip enable strobe

Question asked by artyushenko.taras on Mar 24, 2015
Latest reply on Mar 25, 2015 by artyushenko.taras
I need to transmit 5 bytes and after strobe "update pin" on ad9951 over and over again with speed about 300-400khz. Start every time transmission for each 5 bytes and strobe on tx complete - will not make it, it's to slow.
Right solution is to send block of more bytes to dma, but how to strobe every 5 bytes "update pin"? 
Any suggestions?