I'm trying to setup the SPI port on the C6A816x EVM and have run into a latency issue. I was able to get the Linux spidev driver up and running so that I can access the SPI port through /dev/spidev1.1 in Linux however the data rate has turned out to be too slow. It seems to mainly stem from the dead time between transfers. Is my only option for speeding this up to write a custom driver to handle the SPI transfers in kernel space?
I considered moving over to the DSP to do the transfers as the processing on the SPI data will ultimately be done by the DSP anyway but from the datasheet it looks like the DSP does not have a direct connection to the SPI on the L4.
Any ideas on how to speed up the transfers? Thanks in advance.
