Hi Fabio, In our application we send ~80kB at 10MHz. The total transfer time went from ~80ms to 67ms, so that would be a reduction of 15%. I tested it on an IMX8MM platform. Kind regards, Stefan Moring Op wo 28 jun 2023 om 15:16 schreef Fabio Estevam <festevam@xxxxxxxxx>: > > Hi Stefan, > > On Wed, Jun 28, 2023 at 9:54 AM Stefan Moring > <stefan.moring@xxxxxxxxxxxxxxx> wrote: > > > > IMX51 supports 4096 bit burst lengths. Using the spi transfer length > > instead of bits_per_word increases performance significantly. > > Could you please share the performance increase after this change? > > Thanks