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
mbed.bld@0:6242d93d3c51, 2015-11-10 (annotated)
- Committer:
- manitou
- Date:
- Tue Nov 10 12:07:03 2015 +0000
- Revision:
- 0:6242d93d3c51
DMA SPI proof of concept, wire speed 44.3 mbs
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
manitou | 0:6242d93d3c51 | 1 | http://mbed.org/users/mbed_official/code/mbed/builds/9296ab0bfc11 |