tom dunigan
/
leo_spiperf
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Proof-of-concept SPI block transfer using DMA to achieve wire speeds. SPI1 runs at 45mhz, standard SPI write() achieves only 11mbs, DMA version does 44.3 mbs.
More/comparative SPI results at https://github.com/manitou48/DUEZoo/blob/master/SPIperf.txt