DMA SPI achieves wire speed, 44.3 mbs for block transfers Proof-of-concept
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
Diff: mbed.bld
- Revision:
- 0:6242d93d3c51
diff -r 000000000000 -r 6242d93d3c51 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Tue Nov 10 12:07:03 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/9296ab0bfc11 \ No newline at end of file